VideoDisplay plays video with no audio

I am experiencing times when my VideoDisplay object plays the
video fine, but with no audio. At that point, all audio in the flex
application cannot be heard. Has anyone else experienced this
issue?

Try the following steps, check whether things are working after each step where appropriate, before trying the next.
    1.    Restart the Apple TV (Settings > General > Restart).
    2.    Restart the Apple TV by removing ALL the cables for 30 seconds.
    3.    Restart your router. (Also try removing it’s power cord for at least 30 seconds)
    4.    Reset the Apple TV (Settings > General > Reset > Reset all settings)
    5.    Restore the Apple TV (Settings > General > Reset > Restore)

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Here's some more info.
I tried installing the latest iTunes to my housemate's PC, logging into iTMS with my account, authorizing his machine to play my content, restoring my iPod to the factory settings, downloading the videos and copying them to my iPod.
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Thank you for that info.
For video, the codec is MPEG-4 Video (XVID) and for audio it says MPEG Audio Layer 1/2/3 (mpga).
There are two issues with that file:
The first is the Xvid CODEC (not meant for editing), and then the MPEG Audio/MPGA. I would convert that file, to something that is more editable.
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iPod plays video but not audio of some exported files
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http://www.squared5.com/
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See other tutorial articles over at iLounge...
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This is a problem that comes up regularly around here so try searching.
The clips must be different lengths, yes?
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Are you looking to do post recording adjustments to the separate tracks? That really determines now you do this.
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SMplayer & VLC cant play video with vaapi

My GPU is Intel HD 3000, so I installed the packages libva-driver-intel smplayer mplayer-vaapi vlc, the vainfo is:
libva info: VA-API version 0.36.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_0_36
libva info: va_openDriver() returns 0
vainfo: VA-API version: 0.36 (libva 1.4.1)
vainfo: Driver version: Intel i965 driver for Intel(R) Sandybridge Mobile - 1.4.1
vainfo: Supported profile and entrypoints
VAProfileMPEG2Simple : VAEntrypointVLD
VAProfileMPEG2Main : VAEntrypointVLD
VAProfileH264ConstrainedBaseline: VAEntrypointVLD
VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
VAProfileH264Main : VAEntrypointVLD
VAProfileH264Main : VAEntrypointEncSlice
VAProfileH264High : VAEntrypointVLD
VAProfileH264High : VAEntrypointEncSlice
VAProfileH264StereoHigh : VAEntrypointVLD
VAProfileVC1Simple : VAEntrypointVLD
VAProfileVC1Main : VAEntrypointVLD
VAProfileVC1Advanced : VAEntrypointVLD
VAProfileNone : VAEntrypointVideoProc
I choose the vaapi as the video output driver for both smplayer & vlc, but both of them cant play video with hw accerleration, the smplayer can play video but cpu usage is high, the log is
/usr/bin/mplayer -noquiet -nofs -nomouseinput -sub-fuzziness 1 -identify -slave -vo vaapi -ao alsa -nokeepaspect -nodr -double -input nodefault-bindings:conf=/dev/null -wid 37748771 -monitorpixelaspect 1 -noass -font 文泉驿微米黑 -subfont-autoscale 1 -subfont-text-scale 5 -subcp enca:zh:CP936 -subpos 100 -volume 50 -cache 2048 -osdlevel 0 -vf-add expand=osd=1 -vf-add screenshot -noslices -channels 2 -af scaletempo,equalizer=0:0:0:0:0:0:0:0:0:0 -softvol -softvol-max 110 /mnt/video/TV_Series/手机/[手机].Cell.Phone.E01.720p.HDTV.x264-NGB.mkv
MPlayer SVN-r36265-4.9.2 (C) 2000-2013 MPlayer Team
Cannot test OS support for SSE, disabling to be safe.
203 audio & 423 video codecs
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.
Terminal type `unknown' is not defined.
Playing /mnt/video/TV_Series/手机/[手机].Cell.Phone.E01.720p.HDTV.x264-NGB.mkv.
Cache fill: 0.00% (0 bytes)
Cache fill: 0.00% (0 bytes)
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Cache fill: 18.75% (393216 bytes)
libavformat version 55.12.102 (internal)
libavformat file format detected.
ID_VIDEO_ID=0
[lavf] stream 0: video (h264), -vid 0
ID_AUDIO_ID=0
[lavf] stream 1: audio (ac3), -aid 0
VIDEO: [H264] 1280x720 0bpp 25.000 fps 0.0 kbps ( 0.0 kbyte/s)
Clip info:
creation_time: 2010-05-10 20:00:25
ID_CLIP_INFO_NAME0=creation_time
ID_CLIP_INFO_VALUE0=2010-05-10 20:00:25
ID_CLIP_INFO_N=1
Load subtitles in /mnt/video/TV_Series/手机/
ID_FILENAME=/mnt/video/TV_Series/手机/[手机].Cell.Phone.E01.720p.HDTV.x264-NGB.mkv
ID_DEMUXER=lavfpref
ID_VIDEO_FORMAT=H264
ID_VIDEO_BITRATE=0
ID_VIDEO_WIDTH=1280
ID_VIDEO_HEIGHT=720
ID_VIDEO_FPS=25.000
ID_VIDEO_ASPECT=1.7778
ID_AUDIO_FORMAT=8192
ID_AUDIO_BITRATE=448000
ID_AUDIO_RATE=48000
ID_AUDIO_NCH=2
ID_START_TIME=0.00
ID_LENGTH=2493.86
ID_SEEKABLE=1
ID_CHAPTERS=0
libva info: VA-API version 0.36.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_0_36
libva info: va_openDriver() returns 0
Opening video filter: [screenshot]
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
libavcodec version 55.18.102 (internal)
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
ID_VIDEO_CODEC=ffh264
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 48000 Hz, 2 ch, floatle, 448.0 kbit/14.58% (ratio: 56000->384000)
ID_AUDIO_BITRATE=448000
ID_AUDIO_RATE=48000
ID_AUDIO_NCH=2
Selected audio codec: [ffac3] afm: ffmpeg (FFmpeg AC-3)
==========================================================================
AO: [alsa] 48000Hz 2ch floatle (4 bytes per sample)
ID_AUDIO_CODEC=ffac3
[Mixer] No hardware mixing, inserting volume filter.
Starting playback...
[VD_FFMPEG] Trying pixfmt=0.
[VD_FFMPEG] XVMC-accelerated MPEG-2.
The selected video_out device is incompatible with this codec.
Try appending the scale filter to your filter list,
e.g. -vf spp,scale instead of -vf spp.
[VD_FFMPEG] Trying pixfmt=1.
Movie-Aspect is undefined - no prescaling applied.
[swscaler @ 0xb75c9240]using unscaled yuv420p -> rgb24 special converter
VO: [vaapi] 1280x720 => 1280x720 Planar YV12
[VD_FFMPEG] Trying pixfmt=0.
[VD_FFMPEG] XVMC-accelerated MPEG-2.
The selected video_out device is incompatible with this codec.
Try appending the scale filter to your filter list,
e.g. -vf spp,scale instead of -vf spp.
[VD_FFMPEG] Trying pixfmt=1.
Movie-Aspect is undefined - no prescaling applied.
VO: [vaapi] 1280x720 => 1280x720 Planar YV12
Full DR not possible, trying SLICES instead!
[VD_FFMPEG] DRI failure.
ID_VIDEO_TRACK=0
ID_AUDIO_TRACK=0
and vlc will crash(Segmentation fault (core dumped)) when stop playing the video, the console output is
[jsntyyl@localhost 2 Broke Girls]$ vlc -v 2.Broke.Girls.S04E01.720p.HDTV.X264-DIMENSION.mkv
VLC media player 2.1.5 Rincewind (revision 2.1.4-49-gdab6cb5)
[0x9fbb8f8] main libvlc warning: cannot load module `/usr/lib/vlc/plugins/access/libdv1394_plugin.so' (libavc1394.so.0: cannot open shared object file: No such file or directory)
[0x9fbb8f8] main libvlc warning: cannot load module `/usr/lib/vlc/plugins/access/libaccess_gnomevfs_plugin.so' (libgnomevfs-2.so.0: cannot open shared object file: No such file or directory)
[0x9fbb8f8] main libvlc warning: cannot load module `/usr/lib/vlc/plugins/access/libvcdx_plugin.so' (libvcdinfo.so.0: cannot open shared object file: No such file or directory)
[0x9fbb8f8] main libvlc warning: cannot load module `/usr/lib/vlc/plugins/access/libdc1394_plugin.so' (libdc1394.so.22: cannot open shared object file: No such file or directory)
[0x9fbb8f8] main libvlc warning: cannot load module `/usr/lib/vlc/plugins/visualization/libgoom_plugin.so' (libgoom2.so.0: cannot open shared object file: No such file or directory)
[0x9fbb8f8] main libvlc warning: cannot load module `/usr/lib/vlc/plugins/visualization/libprojectm_plugin.so' (libprojectM.so.2: cannot open shared object file: No such file or directory)
[0x9fbb8f8] main libvlc warning: cannot load module `/usr/lib/vlc/plugins/demux/libgme_plugin.so' (libgme.so.0: cannot open shared object file: No such file or directory)
[0x9fbb8f8] main libvlc warning: cannot load module `/usr/lib/vlc/plugins/codec/libtwolame_plugin.so' (libtwolame.so.0: cannot open shared object file: No such file or directory)
[0x9fbb8f8] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
[0xac802d00] mkv demux warning: MKV/Ebml Parser: m_el[mi_level] == NULL
[0xac802d00] mkv demux warning: MKV/Ebml Parser: Up cannot escape itself
[0xaca00508] main input error: Invalid PCR value in ES_OUT_SET_(GROUP_)PCR !
libva info: VA-API version 0.36.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/dri/i965_drv_video.so
No accelerated IMDCT transform found
libva info: Found init function __vaDriverInit_0_36
libva info: va_openDriver() returns 0
[0xac86e6c0] avcodec decoder: Using VA API version 0.36 for hardware decoding.
libva info: VA-API version 0.36.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_0_36
libva info: va_openDriver() returns 0
[0xac86e6c0] avcodec decoder: Using VA API version 0.36 for hardware decoding.
Fontconfig warning: FcPattern object size does not accept value "0"
Fontconfig warning: FcPattern object size does not accept value "0"
Fontconfig warning: FcPattern object size does not accept value "0"
Fontconfig warning: FcPattern object size does not accept value "0"
[0xb200ff18] main vout display error: Failed to resize display
[0xa041278] pulse audio output warning: starting late (-31910 us)
[ass] Neither PlayResX nor PlayResY defined. Assuming 384x288
[0xb07008d0] access_http access error: error: HTTP/1.1 403 Forbidden
[0xb07008d0] access_http access error: error: HTTP/1.1 403 Forbidden
[0xb07008d0] access_mms access error: error: HTTP/1.1 400 Invalid Request
[0xb07004d8] main demux meta error: no suitable access module for `http://services.tvrage.com/feeds/search.php?show=2 Broke Girls'
[ass] fontconfig: cannot find font '方正黑体_GBK', falling back to 'DejaVu Sans Bold'
[ass] fontconfig: cannot find font '方正综艺_GBK', falling back to 'DejaVu Sans Bold'
[ass] fontconfig: cannot find font '方正综艺_GBK', falling back to 'DejaVu Sans'
[ass] Glyph 0x6536 not found, selecting one more font for (方正黑体_GBK, 200, 0)
[ass] fontconfig: cannot find glyph U+6536 in font '方正黑体_GBK', falling back to 'WenQuanYi Micro Hei'
[0xa6b7b440] main video output warning: picture is too late to be displayed (missing 49 ms)
[0xa041278] main audio output warning: buffer too late (-356847 us): dropped
[0xa041278] main audio output warning: buffer too late (-325063 us): dropped
[0xaca00508] main input error: ES_OUT_SET_(GROUP_)PCR is called too late (pts_delay increased to 1000 ms)
[0xaca00508] main input error: ES_OUT_RESET_PCR called
[0xa041278] main audio output warning: buffer too late (-293194 us): dropped
[0xa041278] main audio output warning: buffer too late (-262756 us): dropped
[0xa041278] main audio output warning: buffer too late (-230913 us): dropped
[0xa041278] main audio output warning: buffer too late (-199057 us): dropped
[0xa041278] main audio output warning: buffer too late (-167188 us): dropped
[0xa041278] main audio output warning: buffer too late (-135319 us): dropped
[0xac86e6c0] main decoder warning: early picture skipped
libva info: VA-API version 0.36.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_0_36
libva info: va_openDriver() returns 0
[0xac86e6c0] avcodec decoder: Using VA API version 0.36 for hardware decoding.
WARNING: Invalid RefPicListX[] entry!!! It is not included in DPB
[0xa041278] main audio output warning: playback way too early (-493947): playing silence
[0xa6b7b440] main video output warning: picture is too late to be displayed (missing 89 ms)
[0xac86e6c0] main decoder warning: can't get output picture
Segmentation fault (core dumped)
the very strange thing is that I can play the video with hw accerleration when I start mplayer in the console with cmd mplayer -vo vaapi video_file, the console output of mplayer is
[jsntyyl@localhost 2 Broke Girls]$ mplayer -vo vaapi 2.Broke.Girls.S04E01.720p.HDTV.X264-DIMENSION.mkv
MPlayer SVN-r36265-4.9.2 (C) 2000-2013 MPlayer Team
Cannot test OS support for SSE, disabling to be safe.
203 audio & 423 video codecs
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.
Playing 2.Broke.Girls.S04E01.720p.HDTV.X264-DIMENSION.mkv.
libavformat version 55.12.102 (internal)
libavformat file format detected.
[lavf] stream 0: video (h264), -vid 0
[lavf] stream 1: audio (ac3), -aid 0
VIDEO: [H264] 1280x720 0bpp 23.976 fps 0.0 kbps ( 0.0 kbyte/s)
Clip info:
creation_time: 2014-10-27 15:19:40
Load subtitles in ./
libva info: VA-API version 0.36.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_0_36
libva info: va_openDriver() returns 0
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
libavcodec version 55.18.102 (internal)
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 48000 Hz, 2 ch, floatle, 384.0 kbit/12.50% (ratio: 48000->384000)
Selected audio codec: [ffac3] afm: ffmpeg (FFmpeg AC-3)
==========================================================================
[AO OSS] audio_setup: Can't open audio device /dev/dsp: No such file or directory
AO: [alsa] 48000Hz 2ch floatle (4 bytes per sample)
Starting playback...
[VD_FFMPEG] Trying pixfmt=0.
[VD_FFMPEG] XVMC-accelerated MPEG-2.
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [vaapi] 1280x720 => 1280x720 H.264 VA-API Acceleration
[VD_FFMPEG] XVMC-accelerated MPEG-2.
[VD_FFMPEG] Trying pixfmt=0.
[VD_FFMPEG] XVMC-accelerated MPEG-2.
A: 0.7 V: 0.7 A-V: 0.016 ct: 0.052 0/ 0 7% 3% 1.4% 0 0

Hi salman254,
If you are having issues with your iPhone being unable to play video with the Videos application, you may want to try some things to troubleshoot.
First, quit all running applications and test again -
Force an app to close in iOS
Next, I would try restarting and if needed resetting the iPhone -
Restart or reset your iPhone, iPad, or iPod touch
If the issue is still present, you may want to restore the iPhone as a new device -
How to erase your iOS device and then set it up as a new device or restore it from backups
Thanks for using Apple Support Communities.
Best,
Brett L

Video with Multiple Audio Tracks-- IOS 4.2 Removes Way to Select Them

After upgrading to IOS 4.2 on my iPhone 4, I've found it no longer lets me select from among multiple audio tracks. The option and button is completely gone.
I encode my videos with AC3 audio as the first track (for my home media devices), and stereo audio as the second track (for the iPhone). Now the iPhone will just play the video, with no audio, and no way to select another track. This is extremely frustrating as I've encoded all my DVDs this way, and never had any issue with playback like this on any IOS device going back to the first gen iPod Touch.
Anyone else have this issue, and know of a work around? Thanks!

I too have the exact same problem for the exact same reason. Did you ever figure out a workaround (other than reencoding all your videos)?

Broadcasting MPEG 2 video with multichannel audio

Dear sir
Using PrPro 2 or CS4 I want to export MPEG 2 video with multichannel audio ( 2 separated stereo channels ) for broadcasting purposes .
As you know there are some TV channels that allows you to switch between two audio tracks , which I am looking to accomplish
This is some of specifications that I use for video production :
1. Primer DV PAL preset .
2. AVI format
3. Canopus Grass Valley ProCoder 3 ( to convert video from AVI to MPEG 2 ) according to the Broadcasting standers .
As you see I'm not able to separate the 2 Audio tracks when I try to export the video file.
So If you have specific method or steps to apply ( 2 separated stereo channels ) for one video file , please be kind to inform me with it .
also please let me know if I missed any details .
Best wishes

Very very very nice that is all what I am asking for .
I tried and it worked perfectly but the file has a .VOB extinction … I changed it to .mpg and now I can play it in Windows Media Player too .
Ok , so far so good, your advise was very helpful so thank you very much but what abut broadcasting ? is it going to mach the broadcasting standers ?
I know.. these are lots of stupid questions but I am asking if you know any thing about it or some resources that can be used.
When I converted it using The ( Procoder ) to mach the broadcasting standers I got only one audio track .
I appreciate the generosity and your attention .
Best wishes

QT + MPEG-2 plays video but no audio

I'm trying to play mpeg-2 videos that were created by my video camera. I've got QT 10.0 running on OS X 10.6.4. I found QT didn't recognize .mpg, so I purchased the mpeg-2 playback component. With it installed, I can now view my .mpg videos but they have no sound. What am I doing wrong?
I'm a apple rookie, be gentle

Just to document what I've found so far. I tried installing QT 7, the MPEG-2 addition from apple again. It would still play video but no audio. Unfortunately, the test mpeg-2 from apple support DID work, which indicated I must have something wrong with my file. However, this is one of 250+ files I have recorded from my digital camcorder and they play on any number of Windows players without issue.
I then tried Perian codecs since I found references it would address a similar problem. I tried VCD and MPEG Tools from BurningThumb. I tried mpeg screenclip. I also tried changing my Audio Midi setup to 2ch-16 bit from 2ch-24 bit. All to no avail.
In the process I found that my .mpg files and .avi files had the same problem. Both played video fine but neither had audio. I then installed VLC and presto! All worked as they were supposed to!
I still don't know why QT won't play it--it seems like it should.

No sound when I play videos with windows 7 on compaq presario cq57 laptop

I have no sound when I play videos with the windows 7 system . I had sound with videos with my old laptop that had windows vista. that I put on a fladsh drive and new videos that I have taken with my smart phone HTC sprint hasno audio
I went through the process   that my laptop said to do to get sound but doesn't work

thank you for the information . I have gone through the what the HPsupport says to do . It didn't work .
I should have been more clear . I have sound on my lap top .
I dont have sound when I import a video that I recorded with my   sprint HTC smart phone.
Iwill have the audio when Iuse the playback on my phone,then when it is import on to my lap top
Iwill not have any audio at all with my video on play back.
it seems that any personal video will not haveaudio even from the flashdrive that I have videos stored on and
I know that it did when I had my old laptop which was a compaq presario v6500 that used the window vista program.
   again I have audio on the laptop   . Ihave no audio when Iput personal videos on my lap top It is just the Personal videos Ihave this problem with

Hi guys, do you know iPad air 2 can play video with 4k resolution or not??? .. THZ,,,,

I want to know that can iPad air 2 play video with 4K resolution video or not???

https://www.apple.com/uk/ipad-air-2/specs/

Video With No Audio?

Hello,
My third generation Apple TV will play videos but the audio will not sound. This problem has just, randomly, started today. Though, I still hear the clicking sound when I scroll from app to app. HDMI is conectecd and there is a strong wifi connection.

Try the following steps, check whether things are working after each step where appropriate, before trying the next.
    1.    Restart the Apple TV (Settings > General > Restart).
    2.    Restart the Apple TV by removing ALL the cables for 30 seconds.
    3.    Restart your router. (Also try removing it’s power cord for at least 30 seconds)
    4.    Reset the Apple TV (Settings > General > Reset > Reset all settings)
    5.    Restore the Apple TV (Settings > General > Reset > Restore)

"Cannot play video with this frame rate&qu

For reasons that aren't important here I cannot use the Zen video converting software. Instead, I've been using the trial version of the Caniusoft Video to Creative Zen converter. Only once has a video played, but as soon as I closed the video and opened it up again this message appeared. "Cannot play video with this frame rate." Daniusoft offers frame rates from 5 fps to 30. I've tried all of them and none of them work. Has this been a problem for others? Perhaps I need a different converter?
ps.
..i'm converting flash video to avi. Does that make a difference?

I can't answer your question in full (maybe somebody else can). However, I am aware that both the Zen and the Zen X-Fi can only play video files up to 320x240 resolution. Previous players like the Vision M were able to scale files down to this resolution on the fly, but not these two newer players.

VideoDisplay plays video with no audio

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