Mpeg-1 Audio Issues...

Hi All,
I have an Mpeg-1 file. Frame size : 720 x 576 (DV - PAL) and Audio : 16 bit Sterio, 44 KHz - Settings that were used to export the Mpeg-1 file.
Now, keeping everything else the same, i need to downsize the audio to : 8 bit mono, 44 khz.
Soundtrack Pro can it do the job on its own ? Does it need any plugin to open the mpeg-1 file. It is not opening the file. What do i do ?
I do not have the source project files, what ever i need to do, i have to do with this mpeg-1 file only.
Power MAC G5 Quad Mac OS X (10.4) Decklink HD Extreme

wouldn't you use Compressor for this application?
I would.
either that or i would just use Quicktime Pro

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MPEG Streamclip Audio Glitch

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[SOLVED] .mkv audio issues after updating x264, ffmpeg and mplayer

Since I updated to x264-20100410-1, ffmpeg-22837-2 and mplayer-31029-1 the audio of random mkv files is having issues. While it seems to be in sync with the video it sounds as if it was slowed down.
The problem was solved after downgrading back to the previous versions with:
pacman -U /var/cache/pacman/pkg/x264-20100312-1-i686.pkg.tar.xz
/var/cache/pacman/pkg/ffmpeg-22511-1-i686.pkg.tar.xz
/var/cache/pacman/pkg/mplayer-30886-1-i686.pkg.tar.xz
I can't pinpoint the precise culprit using the binary packages and have no time right now to recompile them and track the problem individually, sorry.
Last edited by dresb (2011-02-07 16:30:03)

I reinstalled the new versions and tried again but the problem seems to be independent of the -vo (or -ao) drv. I even tried null as -vo but the sound is still distorted. The video plays fine.
The logs of the current (problematic) versions:
MPlayer SVN-r31029-4.4.3 (C) 2000-2010 MPlayer Team
CPU vendor name: GenuineIntel max cpuid level: 10
CPU: Genuine Intel(R) CPU T2080 @ 1.73GHz (Family: 6, Model: 14, Stepping: 12)
extended cpuid-level: 8
extended cache-info: 67125312
Detected cache-line size is 64 bytes
Testing OS support for SSE... yes.
Tests of OS support for SSE passed.
CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNowExt: 0 SSE: 1 SSE2: 1 SSSE3: 0
Compiled with runtime CPU detection.
get_path('codecs.conf') -> '/home/andres/.mplayer/codecs.conf'
Reading /home/andres/.mplayer/codecs.conf: Can't open '/home/andres/.mplayer/codecs.conf': No such file or directory
Reading /etc/mplayer/codecs.conf: 150 audio & 337 video codecs
Configuration: --prefix=/usr --enable-runtime-cpudetection --disable-gui --disable-arts --disable-liblzo --disable-speex --disable-openal --disable-fribidi --disable-libdv --disable-musepack --disable-esd --disable-mga --enable-xvmc --enable-liba52-internal --language=all --confdir=/etc/mplayer --extra-cflags=-fno-strict-aliasing
CommandLine: '-v' 'South.Park.S14E04.You.Have.0.Friends.HDTV.XviD-FQM-muxed.mkv'
init_freetype
Using MMX (with tiny bit MMX2) Optimized OnScreenDisplay
get_path('fonts') -> '/home/andres/.mplayer/fonts'
Using nanosleep() timing
get_path('input.conf') -> '/home/andres/.mplayer/input.conf'
Can't open input config file /home/andres/.mplayer/input.conf: No such file or directory
Parsing input config file /etc/mplayer/input.conf
Input config file /etc/mplayer/input.conf parsed: 91 binds
Setting up LIRC support...
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.
get_path('South.Park.S14E04.You.Have.0.Friends.HDTV.XviD-FQM-muxed.mkv.conf') -> '/home/andres/.mplayer/South.Park.S14E04.You.Have.0.Friends.HDTV.XviD-FQM-muxed.mkv.conf'
Playing South.Park.S14E04.You.Have.0.Friends.HDTV.XviD-FQM-muxed.mkv.
get_path('sub/') -> '/home/andres/.mplayer/sub/'
[file] File size is 41061991 bytes
STREAM: [file] South.Park.S14E04.You.Have.0.Friends.HDTV.XviD-FQM-muxed.mkv
STREAM: Description: File
STREAM: Author: Albeu
STREAM: Comment: based on the code from ??? (probably Arpi)
LAVF_check: Matroska file format
Checking for YUV4MPEG2
ASF_check: not ASF guid!
Checking for REAL
Checking for SMJPEG
[mkv] Found the head...
[mkv] + a segment...
[mkv] /---- [ parsing seek head ] ---------
[mkv] /---- [ parsing cues ] -----------
[mkv] \---- [ parsing cues ] -----------
[mkv] /---- [ parsing chapters ] ---------
[mkv] Chapter 0 from 00:00:00.097 to 00:00:00.000, 00:00:00.097
[mkv] \---- [ parsing chapters ] ---------
[mkv] \---- [ parsing seek head ] ---------
[mkv] |+ segment information...
[mkv] | + timecode scale: 1000000
[mkv] | + duration: 1305.942s
[mkv] |+ segment tracks...
[mkv] | + a track...
[mkv] | + Track number: 1
[mkv] | + Track type: Video
[mkv] | + Default flag: 1
[mkv] | + Codec ID: V_MPEG4/ISO/AVC
[mkv] | + CodecPrivate, length 40
[mkv] | + Default duration: 41.708ms ( = 23.976 fps)
[mkv] | + Language: und
[mkv] | + Video track
[mkv] | + Pixel width: 624
[mkv] | + Pixel height: 352
[mkv] | + Display width: 624
[mkv] | + Display height: 352
[mkv] | + a track...
[mkv] | + Track number: 2
[mkv] | + Track type: Audio
[mkv] | + Default flag: 1
[mkv] | + Codec ID: A_AAC
[mkv] | + CodecPrivate, length 7
[mkv] | + Default duration: 42.667ms ( = 23.438 fps)
[mkv] | + Language: und
[mkv] | + Audio track
[mkv] | + Sampling frequency: 24000.000000
[mkv] | + Channels: 2
[mkv] |+ found cluster, headers are parsed completely :)
==> Found video stream: 1
[mkv] Aspect: 1.772727
[mkv] Track ID 1: video (V_MPEG4/ISO/AVC), -vid 0
==> Found audio stream: 2
[mkv] Track ID 2: audio (A_AAC), -aid 0, -alang und
[mkv] Will play video track 1.
Matroska file format detected.
VIDEO: [avc1] 624x352 24bpp 23.976 fps 0.0 kbps ( 0.0 kbyte/s)
[V] filefmt:31 fourcc:0x31637661 size:624x352 fps:23.976 ftime:=0.0417
get_path('sub/') -> '/home/andres/.mplayer/sub/'
X11 opening display: :0
vo: X11 color mask: FFFFFF (R:FF0000 G:FF00 B:FF)
vo: X11 running at 1280x800 with depth 24 and 32 bpp (":0" => local display)
[x11] Detected wm supports NetWM.
[x11] Detected wm supports FULLSCREEN state.
[x11] Detected wm supports ABOVE state.
[x11] Detected wm supports BELOW state.
[x11] Detected wm supports STAYS_ON_TOP state.
[x11] Current fstype setting honours FULLSCREEN STAYS_ON_TOP ABOVE BELOW X atoms
Failed to open VDPAU backend libvdpau_nvidia.so: cannot open shared object file: No such file or directory
[vdpau] Error when calling vdp_device_create_x11: 1
[VO_XV] Using Xv Adapter #0 (Intel(R) Textured Video)
[xv common] Drawing no colorkey.
[xv common] Maximum source image dimensions: 2048x2048
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
INFO: libavcodec init OK!
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
dec_audio: Allocating 192000 + 65536 = 257536 bytes for output buffer.
FFmpeg's libavcodec audio codec
INFO: libavcodec "aac" init OK!
AUDIO: 24000 Hz, 2 ch, s16le, 128.0 kbit/16.67% (ratio: 16000->96000)
Selected audio codec: [ffaac] afm: ffmpeg (FFmpeg AAC (MPEG-2/MPEG-4 Audio))
==========================================================================
Building audio filter chain for 24000Hz/2ch/s16le -> 0Hz/0ch/??...
[libaf] Adding filter dummy
[dummy] Was reinitialized: 24000Hz/2ch/s16le
[dummy] Was reinitialized: 24000Hz/2ch/s16le
Trying every known audio driver...
ao2: 24000 Hz 2 chans s16le
audio_setup: using '/dev/dsp' dsp device
audio_setup: using '/dev/mixer' mixer device
audio_setup: using 'pcm' mixer device
[AO OSS] audio_setup: Can't open audio device /dev/dsp: Device or resource busy
alsa-init: requested format: 24000 Hz, 2 channels, 9
alsa-init: using ALSA 1.0.22
alsa-init: setup for 1/2 channel(s)
alsa-init: using device default
alsa-init: pcm opened in blocking mode
alsa-init: got buffersize=32768
alsa-init: got period size 1024
alsa: 48000 Hz/2 channels/4 bpf/32768 bytes buffer/Signed 16 bit Little Endian
AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
AO: Description: ALSA-0.9.x-1.x audio output
AO: Author: Alex Beregszaszi, Zsolt Barat <[email protected]>
AO: Comment: under developement
Building audio filter chain for 24000Hz/2ch/s16le -> 48000Hz/2ch/s16le...
[dummy] Was reinitialized: 24000Hz/2ch/s16le
[libaf] Adding filter lavcresample
[dummy] Was reinitialized: 48000Hz/2ch/s16le
[dummy] Was reinitialized: 48000Hz/2ch/s16le
Starting playback...
[libaf] Reallocating memory in module lavcresample, old len = 0, new len = 36869
Increasing filtered audio buffer size from 0 to 36800
[h264 @ 0x8a214e0]no picture
[ffmpeg] aspect_ratio: 1.772727
VDec: vo config request - 624 x 352 (preferred colorspace: Planar YV12)
Trying filter chain: vo
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.77:1 - prescaling to correct movie aspect.
VO Config (624x352->624x352,flags=0,'MPlayer',0x32315659)
VO: [xv] 624x352 => 624x352 Planar YV12
VO: Description: X11/Xv
VO: Author: Gerd Knorr <[email protected]> and others
Xvideo image format: 0x32595559 (YUY2) packed
Xvideo image format: 0x32315659 (YV12) planar
Xvideo image format: 0x30323449 (I420) planar
Xvideo image format: 0x59565955 (UYVY) packed
Xvideo image format: 0x434d5658 (XVMC) planar
using Xvideo port 96 for hw scaling
*** [vo] Exporting mp_image_t, 624x352x12bpp YUV planar, 329472 bytes
Unicode font: 5025 glyphs.
Unicode font: 5025 glyphs.
Increasing filtered audio buffer size from 36800 to 36864 1.7% 4 0
[h264 @ 0x8a214e0]no picture
A: 82.0 V: 93.5 A-V:-11.550 ct: -2.541 0/ 0 6% 1% 1.8% 0 0
The previous versions:
MPlayer SVN-r30886-4.4.3 (C) 2000-2010 MPlayer Team
CPU vendor name: GenuineIntel max cpuid level: 10
CPU: Genuine Intel(R) CPU T2080 @ 1.73GHz (Family: 6, Model: 14, Stepping: 12)
extended cpuid-level: 8
extended cache-info: 67125312
Detected cache-line size is 64 bytes
Testing OS support for SSE... yes.
Tests of OS support for SSE passed.
CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNowExt: 0 SSE: 1 SSE2: 1 SSSE3: 0
Compiled with runtime CPU detection.
get_path('codecs.conf') -> '/home/andres/.mplayer/codecs.conf'
Reading /home/andres/.mplayer/codecs.conf: Can't open '/home/andres/.mplayer/codecs.conf': No such file or directory
Reading /etc/mplayer/codecs.conf: 150 audio & 335 video codecs
Configuration: --prefix=/usr --enable-runtime-cpudetection --disable-gui --disable-arts --disable-liblzo --disable-speex --disable-openal --disable-fribidi --disable-libdv --disable-musepack --disable-esd --disable-mga --enable-xvmc --enable-liba52-internal --language=all --confdir=/etc/mplayer --extra-cflags=-fno-strict-aliasing
CommandLine: '-v' 'South.Park.S14E04.You.Have.0.Friends.HDTV.XviD-FQM-muxed.mkv'
init_freetype
Using MMX (with tiny bit MMX2) Optimized OnScreenDisplay
get_path('fonts') -> '/home/andres/.mplayer/fonts'
Using nanosleep() timing
get_path('input.conf') -> '/home/andres/.mplayer/input.conf'
Can't open input config file /home/andres/.mplayer/input.conf: No such file or directory
Parsing input config file /etc/mplayer/input.conf
Input config file /etc/mplayer/input.conf parsed: 90 binds
Setting up LIRC support...
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.
get_path('South.Park.S14E04.You.Have.0.Friends.HDTV.XviD-FQM-muxed.mkv.conf') -> '/home/andres/.mplayer/South.Park.S14E04.You.Have.0.Friends.HDTV.XviD-FQM-muxed.mkv.conf'
Playing South.Park.S14E04.You.Have.0.Friends.HDTV.XviD-FQM-muxed.mkv.
get_path('sub/') -> '/home/andres/.mplayer/sub/'
[file] File size is 41061991 bytes
STREAM: [file] South.Park.S14E04.You.Have.0.Friends.HDTV.XviD-FQM-muxed.mkv
STREAM: Description: File
STREAM: Author: Albeu
STREAM: Comment: based on the code from ??? (probably Arpi)
LAVF_check: Matroska file format
Checking for YUV4MPEG2
ASF_check: not ASF guid!
Checking for REAL
Checking for SMJPEG
[mkv] Found the head...
[mkv] + a segment...
[mkv] /---- [ parsing seek head ] ---------
[mkv] /---- [ parsing cues ] -----------
[mkv] \---- [ parsing cues ] -----------
[mkv] /---- [ parsing chapters ] ---------
[mkv] Chapter 0 from 00:00:00.097 to 00:00:00.000, 00:00:00.097
[mkv] \---- [ parsing chapters ] ---------
[mkv] \---- [ parsing seek head ] ---------
[mkv] |+ segment information...
[mkv] | + timecode scale: 1000000
[mkv] | + duration: 1305.942s
[mkv] |+ segment tracks...
[mkv] | + a track...
[mkv] | + Track number: 1
[mkv] | + Track type: Video
[mkv] | + Default flag: 1
[mkv] | + Codec ID: V_MPEG4/ISO/AVC
[mkv] | + CodecPrivate, length 40
[mkv] | + Default duration: 41.708ms ( = 23.976 fps)
[mkv] | + Language: und
[mkv] | + Video track
[mkv] | + Pixel width: 624
[mkv] | + Pixel height: 352
[mkv] | + Display width: 624
[mkv] | + Display height: 352
[mkv] | + a track...
[mkv] | + Track number: 2
[mkv] | + Track type: Audio
[mkv] | + Default flag: 1
[mkv] | + Codec ID: A_AAC
[mkv] | + CodecPrivate, length 7
[mkv] | + Default duration: 42.667ms ( = 23.438 fps)
[mkv] | + Language: und
[mkv] | + Audio track
[mkv] | + Sampling frequency: 24000.000000
[mkv] | + Channels: 2
[mkv] |+ found cluster, headers are parsed completely :)
==> Found video stream: 1
[mkv] Aspect: 1.772727
[mkv] Track ID 1: video (V_MPEG4/ISO/AVC), -vid 0
==> Found audio stream: 2
[mkv] Track ID 2: audio (A_AAC), -aid 0, -alang und
[mkv] Will play video track 1.
Matroska file format detected.
VIDEO: [avc1] 624x352 24bpp 23.976 fps 0.0 kbps ( 0.0 kbyte/s)
[V] filefmt:31 fourcc:0x31637661 size:624x352 fps:23.976 ftime:=0.0417
get_path('sub/') -> '/home/andres/.mplayer/sub/'
X11 opening display: :0
vo: X11 color mask: FFFFFF (R:FF0000 G:FF00 B:FF)
vo: X11 running at 1280x800 with depth 24 and 32 bpp (":0" => local display)
[x11] Detected wm supports NetWM.
[x11] Detected wm supports FULLSCREEN state.
[x11] Detected wm supports ABOVE state.
[x11] Detected wm supports BELOW state.
[x11] Detected wm supports STAYS_ON_TOP state.
[x11] Current fstype setting honours FULLSCREEN STAYS_ON_TOP ABOVE BELOW X atoms
Failed to open VDPAU backend libvdpau_nvidia.so: cannot open shared object file: No such file or directory
[vdpau] Error when calling vdp_device_create_x11: 1
[VO_XV] Using Xv Adapter #0 (Intel(R) Textured Video)
[xv common] Drawing no colorkey.
[xv common] Maximum source image dimensions: 2048x2048
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
INFO: libavcodec init OK!
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
==========================================================================
Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)
dec_audio: Allocating 6144 bytes for input buffer.
dec_audio: Allocating 65536 + 65536 = 131072 bytes for output buffer.
FAAD: Decoder init done (0Bytes)!
FAAD: Negotiated samplerate: 48000Hz channels: 2
FAAD: compressed input bitrate missing, assuming 128kbit/s!
AUDIO: 48000 Hz, 2 ch, s16le, 128.0 kbit/8.33% (ratio: 16000->192000)
Selected audio codec: [faad] afm: faad (FAAD AAC (MPEG-2/MPEG-4 Audio))
==========================================================================
Building audio filter chain for 48000Hz/2ch/s16le -> 0Hz/0ch/??...
[libaf] Adding filter dummy
[dummy] Was reinitialized: 48000Hz/2ch/s16le
[dummy] Was reinitialized: 48000Hz/2ch/s16le
Trying every known audio driver...
ao2: 48000 Hz 2 chans s16le
audio_setup: using '/dev/dsp' dsp device
audio_setup: using '/dev/mixer' mixer device
audio_setup: using 'pcm' mixer device
[AO OSS] audio_setup: Can't open audio device /dev/dsp: Device or resource busy
alsa-init: requested format: 48000 Hz, 2 channels, 9
alsa-init: using ALSA 1.0.22
alsa-init: setup for 1/2 channel(s)
alsa-init: using device default
alsa-init: pcm opened in blocking mode
alsa-init: got buffersize=32768
alsa-init: got period size 1024
alsa: 48000 Hz/2 channels/4 bpf/32768 bytes buffer/Signed 16 bit Little Endian
AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
AO: Description: ALSA-0.9.x-1.x audio output
AO: Author: Alex Beregszaszi, Zsolt Barat <[email protected]>
AO: Comment: under developement
Building audio filter chain for 48000Hz/2ch/s16le -> 48000Hz/2ch/s16le...
[dummy] Was reinitialized: 48000Hz/2ch/s16le
[dummy] Was reinitialized: 48000Hz/2ch/s16le
Starting playback...
Increasing filtered audio buffer size from 0 to 34816
[h264 @ 0x8a89bc0]no picture
[ffmpeg] aspect_ratio: 1.772727
VDec: vo config request - 624 x 352 (preferred colorspace: Planar YV12)
Trying filter chain: vo
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.77:1 - prescaling to correct movie aspect.
VO Config (624x352->624x352,flags=0,'MPlayer',0x32315659)
VO: [xv] 624x352 => 624x352 Planar YV12
VO: Description: X11/Xv
VO: Author: Gerd Knorr <[email protected]> and others
Xvideo image format: 0x32595559 (YUY2) packed
Xvideo image format: 0x32315659 (YV12) planar
Xvideo image format: 0x30323449 (I420) planar
Xvideo image format: 0x59565955 (UYVY) packed
Xvideo image format: 0x434d5658 (XVMC) planar
using Xvideo port 96 for hw scaling
*** [vo] Exporting mp_image_t, 624x352x12bpp YUV planar, 329472 bytes
Unicode font: 5025 glyphs.
Unicode font: 5025 glyphs.
[h264 @ 0x8a89bc0]no picture1 ct: 0.041 0/ 0 15% 3% 1.8% 4 0
EDIT: I've just seen your edit
Last edited by dresb (2010-04-14 21:03:59)

Bootcamp 3.1 and imac windows 7 64bit update not installing. Audio issues!

After many days of work getting the windows 7 working in bootcamp in my imac 27 (still with audio issues) I eagerly awaited the bootcamp update and imac updates.
Neither will install.
Then I find that according to tech support as of now I have to reinstall Windows 7 again for the updates to work!
It took me 5 full 8 hours days to get all my scientific programs installed and working, now I find I can't even simply update the drivers I need. I don't want to reinstall.
My only issues are audio.
Here they are:
1) The headset jack works fine on the Mac side, but in Windows 7, it causes the i7 intel CPU to go crazy. There is no CPU spike on the mac side.
2) The headset jack in the imac is a trrs jack. The same as in the iphone, a tri-band jack that has three bands, two audio out channels and one mic in channel. A trrs headset works fine on the mac side with using the headset mic (as in iphone) rather than the built in mic. (this provides much better quality for sound recording). I don't want to use a usb mike.
In Windows 7 the mic part of the trrs headset does not work.
3) In Windows 7 when going into audio devices recording, no audio mixer shows up, so when I do video or audio screen capture the only way to capture the sound is through the speakers and then back through the imac built in mic, rather than directly through the unit. (terrible sound quality) On the mac side the mixer element works fine.
Now I find from other imac users that even the new updates for the imac on windows 7 don't address and fix the audio issues. I am sure not going to go through 5 more days work only to find the audio issues still don't work.
I need these audio aspects to work properly though!
I have tried to get drivers for the cirrus logic audio card, but guess what there are none available and cirrus logic doesn't even recognize the board or offer drivers.
I have many windows programs I must have for my scientific research!I bought the top of the line Imac with all the bells and whistles because Apple promised that the machine could run Windows 7 in bootcamp natively!
It doesn't. This has been a nightmare of problems.
Is Apple going to step up to the plate and make good on their promises?
Does any one have a fix for any of the audio issues, or know how to install the new drivers without a complete reinstall of Windows?
Installing a few sound drivers and software should not require a complete reinstall. Getting the proper drivers for the headset jack audio in and audio out jack should be the most basic of fixes. Making the audio mixer work should be elementary.
If you are an Apple tech person or an Apple user that can help on these issues, please do!
Thanks, Dr. Duke
An American profesor in Europe.
PS I will post this under Imac windows 7 updates without a reinstall and under
imac Sound issues.

On another thread a few people have responded saying that their imac has the same situation, the cpu is going crazy and the imac gets hot with headphones or speakers plugged in. But this doesn't happen in the mac side.
If you have an late 2009 imac and don't have these audio issues, let us hear from you. If you don't, lay out the problem here.
Here is my last two cents in to the inquiry.
Not only does the cpu run crazy but the imac 27 gets very, very hot. Since I unplugged the headphones, it runs much, much cooler.
Certainly, some Mac engineers should take care of this problem, it seems it is universal on all the imac 27's and from what I gather, the smaller screened cousins too.
Also, we certainly want a stereo mix option for audio in or out, or what is called "what you hear" or wave out. Imac is supposed to be much geared to multimedia apps.
Finally, the mic jack part of the trrs set up MUST be fixed! A lot of manufacturers are going to headset combo jacks as they call them, mic in and stereo out on the same tribanded plug. But, the old single jack for mic in and single jack for stereo out are two tiny parts of the hardware and super inexpensive for the manufacturer. Why in the **** to go to the "advanced" triplug if the **** thing doesn't work.
Mac has a great reputation. I hope they remedy these problems right away.
Anyone whose imac 27 or 24 whose headset plug is working correctly. Let us know! I don't think anyone's is, but I think that few people understand that their cpu is running so much faster with the plug in, plus few even understand the combo jack and the triband, or trrs audio jack! Out of 4 audio technicians I talked to, not one of them knew what a trrs jack was or that you even have a mic in jack as part of the headset jack!
When I told one senior that it worked on the Mac side, he didn't believe for a while, thought my sound might be recorded from the onboard mic, but I proved it to him by tapping iaudibly on my iphone mic headset and and it showing up in garage band clearly and listening to big difference in audio.
As for a usb audio adapter, I am in a neon light environment and find that those adapters are more sensitive to electrical interference. Besides I want to use the headset jack as it was meant to be used!
Thats it.
Again, if anyone using an imac 27 and windows 7 64 or 32 doesnt have these problems, let us know! We are all anxious for a fix!
Best to all!

SoftPhone over VPN audio issue

Having a "one-way" audio issue when IPC connects over VPN to any Main Office IP Phones (7960). Remote IPC (softphone) shows "0 Received" Packets, but the IP Phone shows them as being sent.
This does NOT happen if IPC contacts another IPC on a PC at Main Site, or any kind of phone at the other branch offices.
Have looked at all of the audio settings on the VPN IPC unit, they are correct.
Any ideas?

Try to sniff the Ethernet traffic during call setup at the CallManager. When Callmanager sends Call Control messages to remote party, it could send wrong IP address or UDP port as an RTP parameters.
Another components could block the traffic are firewalls. How do you have your VPN tunnel built? Do you use Cisco VPN Client? What terminates your VPN traffic at the central location? PIX, VPN3000 or Router? Traffic may go one way without a change, and some protocol FixUp may be triggered for this traffic on the way back. If you have access to firewall logs, check if you have any traffic dropped.
Good luck,
Mike
http://www.headsetadapter.com

Logic 9.1.8 & Mainstage 2 - crashing frequently/audio issues

I have just uprgraded to this set up (though using the same sound card as I did on my Mac Book with Logic 8 & Snow Leopard prevously) - in order to avoid overloading which was happening on my previousl set up.. only to find that this new system seems very buggy - crashes frequently on Logic (Sudden Motion Sensor error - have disabled that now) and Main Stage freezes. Then a wierd echoey sound can happen - whereby any audio is echoed back from DAW, in Logic AND Mainstage.
I have down loaded two plug-ins/VST's since starting to use this new set up - an XILS Lab L.E. verision and a Crystal synth. I've downloaded the up to date Duet drivers from Apogee. (I have an Duet 1.5 that I used with my old set).
Have looked at the Console system log to try and understand what might be happening - it is FULL of text on occasions when Logic crashes - I am not tech savvy enough to unpick it though.
If anyone has any suggestions to help I would be grateful, thanks.
I do wonder if it is a Core audio issue though - given the echoiing that seems to occur...

I have just uprgraded to this set up (though using the same sound card as I did on my Mac Book with Logic 8 & Snow Leopard prevously) - in order to avoid overloading which was happening on my previousl set up.. only to find that this new system seems very buggy - crashes frequently on Logic (Sudden Motion Sensor error - have disabled that now) and Main Stage freezes. Then a wierd echoey sound can happen - whereby any audio is echoed back from DAW, in Logic AND Mainstage.
I have down loaded two plug-ins/VST's since starting to use this new set up - an XILS Lab L.E. verision and a Crystal synth. I've downloaded the up to date Duet drivers from Apogee. (I have an Duet 1.5 that I used with my old set).
Have looked at the Console system log to try and understand what might be happening - it is FULL of text on occasions when Logic crashes - I am not tech savvy enough to unpick it though.
If anyone has any suggestions to help I would be grateful, thanks.
I do wonder if it is a Core audio issue though - given the echoiing that seems to occur...

My Ipad 2 external speakers does not work and headphones has popping sound. This all occured at the same time as my Iphone and Ipod headphones only played mono (no, the "mono" option is not on). How can there be audio issue for all these devices?

My IPad 2 external speaker does not work and the original headphones have popping sound when used. This all occurred at the same time as my IPhone and IPod headphones only plays mono (and no, the "mono" option is not on) with the original headphones, as well as, other headphones tested. How can there be audio issue for all these devices at the same time?
As you may have noted from the list of Apple devices I own, I believed in the Apple and the products it was producing; but it is hard to believe from my experience and the other voices within the Apple Community that we are all experiencing the same hardware issues. Especially since I recently, I upgraded to an IPhone 4g (no, my faith in IPhone 5 series is very little) and is experiencing the same audio problem as described above. So now, I am off to the Apple store again to be told that it’s a hardware problem on new IPhone. Really? Apple, what happen to the pride in the product you were producing?

Everyone does things a little differently. I love to "jam " along with iTunes ( or old Lp's) . Always have. That's where/how I've learned to play .
I'm sure leonieDF is giving a proper way to jam along on a keyboard with an iTune. He blows my mind all the time with what he knows. Nuff respects to him !
What I do is make a GB project I call "Jam With". I'll make several new tracks that are blank. Just has a few instruments named in the blank tracks. You can change those per song ...
Because I'm not concerned about changing the pitch / key.... of the iTune or the tempo ... I can simply play along with it.
Peace,
P. Dreadie

IMovie audio issues. Fine in timeline, but when rendering to iTunes or Media Browser, audio from certain portions of movie files are heard in places where it shouldn't be !

iMovie 11 audio issues. Fine in timeline, but when rendering to iTunes or Media Browser, audio from certain portions of movie files are heard in places where it shouldn't be !
I have created a project where I have a montage of photos and video clips edited together with music under. Some audio portions of the video files are being muted in some areas and those portions are being heard in another part of the project. This is not for all video clips only certain ones.
The project plays fine in the timeline, but when I render the project thru iTunes or Media Browser, this is when the project goes corrupt.
I tried detaching the Audio from the video clips and this somewhat worked, but the original problem still exists with certain audio still being heard where it's not supposed to be.

I have a fix - or rather, a workaround.
WARNING: It is lengthy, but still far better than starting a new project from scratch.
I had this same issue and none of my transitions/clips were at custom speeds, nor did I have anything else weird going on. Unfortunately there is nothing you can do within iMovie to fix this, at least there wasn't for me. iMovie is BY FAR the buggiest software I have ever used and if you haven't already spent hours slaving away on a project, you are so much better off using just about anything else to edit your video.
...But let's assume you have already spent many hours working on your project and you don't want to start all over. Well then, you have at least one option.
It's a pain in the neck, but it's infinitely better than restarting your project from scratch.
This will require:
A software called Soundflower (which is free) and some kind of audio editing software (I use Logic, but really any should work).
1.) You're going to need to export your video with the messed up audio. Typically if you're audio is messing up, you're video is at least usually working just fine (at least it always does for me).
2.) You're going to need to open that video in your audio software and import only the audio. If your software doesn't give you this option, then you're going to need to record the audio from your video using the audio software and Soundflower. You can find tutorials on how to do this, but it's honestly pretty straightforward once you start playing around with you Mac's audio I/O settings. Remember to have your computer's volume all the way up when doing this.
3.) Watch/listen to your video and make notes of where the audio errors occur. I HIGHLY RECOMMEND writing down times too, as they will be extremely helpful later.
4.) Now were going to rip some working audio from the iMovie project itself. Go back into your iMovie project and only play back audio while in the edit window for this step. Do NOT play your project back in full screen.
This part is key: if you try to play back your project from the beginning the audio will usually still mess up. So, what you're gonna have to do is go back on your edit window timeline right before these errors occur and play that specific clip back while recording this working audio with Soundflower and your audio software. Essentially we're only recording the parts of the audio where these errors occur, so try to do this in order if you can. Try to leave several seconds of audio in before the error - that way we can use it as reference when we construct our new audio track.
5.) Now in your audio software you should have your original error-filled audio track and the new clips that we just captured. This part can be painstaking if you're not familiar with audio editing softwares, but as you'll learn, it's really not that hard.
You're going to look at your original audio track and compare it to your new working audio clips. You should be able to notice where those new clips are supposed to go by looking at the identical (or close to identical) waveform shapes in your original audio track. The two should correspond with one another. If you don't understand what I mean right now, you will when you start playing around with the audio. This is why marking times is very important.
Take your new clips and split them up if you haven't already, that way you can drag them around and edit them separately from one another. Essentially your going to line these new clips up with original and then replace the original parts with new ones.
We need to get this as precise as possible, so start off by getting them as close as you can with your naked eye, and then use a zoom tool to zoom in as much as possible so that you can get them lined up PERFECTLY, or at least extremely close. In some softwares you can just drag these new clips on top of the old track, but most of the time you will need to actually cut out the old piece and replace it with the new one. In doing this, zoom in and make sure that you are NOT cutting out a bigger space than your new clip will fill - otherwise you will have small gaps in your audio.
VERY IMPORTANT: Also make sure that this new audio track starts at the EXACT SAME time as your original - otherwise your new audio will be out of sync.
I know this part can really suck if you're not used to audio editing, but at this point, there is little other choice.
6.) Once you are done with this, export your newly pieced together audio track.
7.) Now open iMovie and create a NEW project. Re-import the video that you exported earlier that has the messed up audio. This might take a while, so just be patient.
8.) Then right click the clip and select "Detach Audio". This will do just that - allowing you to edit the audio separately from the video. Now delete this audio.
9.) Now, import the new, perfect audio track that we just made and make sure that it starts at the start of the project. Make sure it's in sync and that everything works.
Now just export your new video with the working audio and you should be done. Since we have given iMovie the audio with no editing actually being done in iMovie, it does not have to generate its own audio now and you should have absolutely no errors now - unless there is some that you forgot to take out earlier.
YOU'RE FINALLY DONE!!!
I know this entire process *****, but if you're that far into your project, there is little else that you can do. Now you've learned your lesson:
DON'T USE IMOVIE EVER AGAIN.
I hope this helped!

My iPhone 5 is suddenly having audio issues through the headphone jack.

So this is a strange situation, and I'll try to explain in depth so that someone might be able to suggest a solution. As reference, I have an iPhone 5 that I purchased in late-February. I've had every other model of iPhone except for the first iPhone, so I am pretty familiar with the device. I used to be on AT&T, and switched to Verizon when I upgraded to the iPhone 5.
Two days ago, I was on a six hour road-trip, and I'd been playing my music like normal through my car's auxillary cable. After stopping for lunch, I went to plug my music again, but once the music started to play, I realized that only the drums were playing at normal levels while the vocals were very, very soft. I switched through a few different songs, and realized that all the songs were being played at different levels; sometimes the backup vocals were normal levels while the instrumentation and lead vocals were quiet, or vice versa. I decided to plug my iPhone in to charge, and when I did this, the audio levels were all normal. However, the iPhone was NOT charging. I removed the charger, and the audio went back to being weak and distorted. I went back and forth at this for a bit, trying to figure out what was going on.
Since then and after some testing, I realize that my iPhone will now only charge anywhere EXCEPT in the car charger (I simply use my USB cable that came with my iPhone and plug it into the power adapter I have in the car). This morning, I tested the audio in my home speaker system, and I had the same audio issues. Only half the song's tracks would be at normal audio levels, while the other half would be at a very quiet, almost nonexistent level. I tried plugging my charger into the phone to see if that'd make a difference, but instead of the audio going back to normal like it does in the car, the music stopped and there was just crackling and very noisy distortion sounds.
I'm super confused and not sure what to do. This has never happened to me with any of my iPhones. I am updating my software right now, and am hoping that that may help somehow. Otherwise, I'm at a loss. Any suggestions as to what I should do would be greatly appreciated!

Do the new iMacs have digital audio out through the headphone jack?
Yes.
http://support.apple.com/kb/SP576

HP Slate 21 audio issue after KitKat update and reset

I have upgraded my HP Slate 21 from JB to KK. Now the sound quality is very bad!
I came directly from xxx.11 kernel and made factory reset but didn't get a good result. Please how can I fix this tremendous issue?

Hey @PauloTxR ,
Welcome to the HP forums.
I understand you're experiencing issues with sound quality on your Slate 21 PC.
Please review the following thread: HP Slate 21 Kit Kat OTA Update Fix for Audio Quality and LAN Connectivity.
This fix will resolve audio issues of a software nature resulting in the KitKat update. If your issue persists after applying the specific update mentioned in this thread and have done a factory reset, the issue is likely hardware related and not the result of the KitKat update.
If you have done the above and continue to have problems please call our technical support at 800-474-6836. If you live outside the US/Canada Region, please click the following link to get the support number for your region: Phone Assist Worldwide.
Thanks.
Please click the "Kudos, Thumbs Up" at the bottom of this post if you want to say "Thanks" for helping!
Please click "Accept as Solution" if you feel my post solved your issue, it will help others find the solution.
The Great Deku Tree
I work on behalf of HP.

STILL have MBP audio issues after Bootcamp 3.1

I have a mid-2009 MBP 13" with Snow Leopard, running 32-bit XP Professional with SP3. I just updated to Bootcamp 3.1 after dealing with low audio, robo-voice from the internal microphone, and spooky red light/trackpad nonsense for months. While 3.1 fixed the red light and the trackpad, my audio issues still remain; I get very poor volume on the Windows side and my voice is still distorted, slow and generally crappy when I use the built-in microphone in the microphone test. The mic doesn't work at all in Steam, which is the whole reason I want it. Was 3.1 supposed to fix these audio issues? It doesn't explicitly say so on the download page, but it seems like it's been quite effective for other people, so if it is supposed to fix the audio I suppose I'm going down to the Apple Store.
If 3.1 wasn't a magic bullet, can anyone suggest a fix? I'm pretty fed up by now with this issue. I tried reinstalling the drivers after extracting them from the BC 2.2 update (found that process on these forums), and it did nothing. The link to the New Jersey school's site (another suggestion from the forums) no longer works for whatever reason.
Thanks!

Use Driver Sweeper and the tips on how to use and troubleshoot
http://www.guru3d.com/category/driversweeper/
You may also want to use Windows Installer Cleanup as I mentioned.
Also CCleaner can help.
MSCONFIG.exe can lead you to the services and startup items being loaded
Programs control panel of course to uninstall the program
Device Manager to rollback; or uninstall and manage device drivers
Apple installs a number of drivers, services, startupitems so you really have to get familiar with the OS and where/how to manage things.
Windows 7 supports RESTORE POINTS. Use 'em! and set one before just in case (any good installer or update should create a new one but good to have your own), and make sure there is 10-30GB of space for restore points.
System control panel advanced protection -> configure your boot volume settings

Audio Issues - Sound stops on youtube vid after a few seconds. Please Help?

What's been happening is weird audio issues, especially youtube related though not only (other web video content has been messed up, but mostly youtube). Right now I am using headphones (1/8" or 3.5mm) through the back of the computer and when I turn on the computer, at first I can hear sound from videos. When I open the speaker icon mixer window in the bottom right, I see green bar moving with the sound on the "speakers" mixer and "Adobe Flash Player" mixer simultaneously.
Then after a few minutes or after having a few tabs open, all of a sudden the audio stops. Oddly enough, usually the video keeps going even thought the audio has stopped. I verified this wasn't a hardware issue with my headphones by opening the Speaker Icon Mixer window, and acutally was watching it at the moment the sound stopped and saw the green bar disappear exactly when the sound stopped.
If I restart the computer, or firefox only sometimes (mostly need to restart cpu though) then videos will play again with sound. Once the sound stops however, if I open a new youtube video in another window, it will sometimes cause an "An error occured. Please try again later" crash.
I'm at a loss of what to do.
Running latest version of Firefox (26.0) and Adobe Flash (11,9,900,170 installed). Windows 7 64 bit system, Intel Core I7 Processor.
I have tried many things include "reset firefox", clear cache, changing to an earlier version of Flash (11.3). Tried to update sound cards. Even tried to restore computer to an earlier setting ( I only went two days ago, could go farther back I suppose).When I reverted back, the problem went away for a few hours but then came right back.
I scanned pc with ESET online antivirus, no viruses, Malewarebytes Pro, no issues. Cleaned with CC cleaner. Plenty of hard drive space (using an SSD boot drive btw).
I am not very knowledable about plugins or "addons" or extenstions. Nor do I know if it has anything do "Firefox Options -> applications" (gives content type and then option...essentially a bunch of sound file types and then which plugin plays it). I can give my list of all this out if necessary but there are quite a few and I dont know how to copy/paste that info so it would take. Even though its gonna take forever to hand type these guys all out, I will give my list of "plugins" that may be audio related:
QuickTime Plugin 7.7.4 7.7.4.0
RealDownloader Plugin 1.3.3.66
RealNetworks (tm)
RealDownloader Chrome Background Extensions Plug-in (32-bit) 1.3.3.66
RealNetworks (tm)
RealDownloader HTML5VideoShim Plug-in (32-bit)
1.3.3.66 RealNetworks (tm)
RealDownloader PepperFlashVideoShim Plug-in (32-bit) 1.3.3.66
RealPlayer Download Plugin 16.0.3.51
RealPlayer(tm) G2 LiveConnect-Enabled Plug-In (32-Bit) 16.0.3.51
Shockwave Flash 11.9.900.170
Shockwave for Director 12.0.7.148 (for netscape plug-in)
Shockwave for Director 12.0.2.122 (for netscape plug-in)
Silverlight Plug-In 5.1.20913.0
VLC Web Plugin 2.1.0.0
When I open my device manager and look at "Sound video and game controllers" I see 4 options:
1)AMD High Definition Audio Device
2) Bluetooth Audio Device
3) High Definition Audio Device
4) Intel (R) Display Audio
I'm not sure what this means, if I have 4 sound cards or if they are conflicting somehow.
I tried to update drivers on each one. No change. I've tried "restarting firefox with addons disabled" and "check here to see if your addons are up to date" (they were except VLC which I did update before restoring to previous day and it didnt help).
None of the fixes work for me, same issues. Extremely frustrated!! Help?

I'm having a similar problem with flash audio. After a few minutes of watching a video or playing a game the audio cuts out but the video keeps working. The audio does not return until I refresh the page. The issue occurs regardless of which browser I'm using (have tired both Firefox and Chrome). Oddly enough, when the audio cuts out from whatever flash application is running, my entire system loses sound until I refresh the webpage or close the browser. For example, I was playing Minecraft with Chrome open in the background and suddenly the sound cut out from both. Once I closed the browser my audio came back. I realized that there was a graphic on the webpage that was flash based which likely triggered the issue.
I do not have any Real plugins.
Incidently I also have Intel (R) Display Audio listed in my device manager
Edit: I forgot to mention, this issue only seems to occure when I watch videos that have been uploaded recently. For some reason the audio does not cut out when I watch a video was uploaded a few months ago.

Mavericks 10.9.1 Upgrade = Audio issue (lost 5.1 through HDMI)

Hello guys and gals,
I've Macbook pro 15" retina connected as follow
Macbook Pro -> Sony HT -> LG LED TV (55LA7400)
The connection is made via HDMI port. Everything was working fine, no issue when I was using previous OS. Apps such as XBMC, etc was able to output 5.1 fine.
I just upgraded to 10.9.1 and experience Audio issue.
With TV OFF: I was able to see the 5.1 Selection via Audio Midi Setup. Using the built in test feature, was able to check all 6 speakers fine.
However, as soon as I turn on the TV, Macbook screen flickers (as usual when ie tries to recognize the TV and enable Video out) I can only select 2CH via the setup.
This apparently, wasn't the issue prior to the upgrade.
Please advise,
Thanks

I should have said - I tried that earlier but I just get:
'This update is not available for this Apple ID either because it was bought by a different user or the item was refunded or cancelled.'
My 17 inch Macbook Pro is pretty old (2009) and I took it over from my son 3 years ago so I wasn't involved with the initial installation.
Thanks.

Audio Issues with MacBook Pro (Late 2008)

I am seeing an occasional issue with my MacBook Pro (Late 2008). The Audio will go out... and instead you will just hear static-like clicking sounds when and audio even happens. For example... when you have the up/down volume notification on... and you change the audio volume.. you hear clicks. Or... when you open up a file that has audio.. you will hear the static-like click when the audio starts to try to play.
The work around per-se is to completely shutdown and turn the notebook back on. A simple restart does not seem to fix it... it looks like the system needs to have a bit of energy drain first. Which... worries me that this is a hardware issue and not a driver issue.
Wondering how many others are seeing this???

I went to and Apple Support Center last week and I asked some questions about audio because my MBP was having troubles too. The tech told me audio issues are very frequent on these machines and sometimes you have to change a part of the soundcard. He also added you have to bring the MBP to a support center if you're having the problem several times - in my case I'm waiting the next "crash" since I had only 2 issues so far... If you're under warranty go for a check up and see if it really needs assistance. Goodbye

FAQ: How do I troubleshoot audio issues when importing .MTS files?

Hello. The link FAQ: How do I troubleshoot audio issues when importing .MTS files?
does not work, and i need the answer please. My imported MTS clips are not playing back audio because it seems that no audio imported with the video. Thanks, Don.

Hi there
Audio plays when the object with the audio assigned appears. This is why you hear it when the Button appears.
Try assigning the audio instead to the object that appears when you click the button. Perhaps the caption.
Cheers... Rick
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