Garbled left audio channel in MuVu Mi

When I attempt to play back MP3's with my MuVu N200, the left audio channel is completely garbled almost beyond recognition. This only affects music, not recorded wav's or radio signals.
I've tried formatting it, tried different files, different bitrate files, and I still have the same trouble. I've even moved files back onto my computer, and they sounded great.
Is there any known trouble with MP3 decoding?

Actually, eh, it was fine until I updated the firmware.
I'd go back to the OEM defaults (I really don't think I'll use it to play WMA files), but I can't find it anywhere on Creative's website.

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IMovie App Only Exporting Left Audio Channel

Dunno what's up with this. My iPod takes video just fine, with stereo audio. When I export anything from the iMovie app, however, just the left audio channel is active.
Known bug? What's up?

yes, you are not the only one with this problem. I think we have to wait for another update sadly . But strange thing is, one of my projects successfully exported both channels, left and right. Trying to find the difference between these projects but currently I can't find any.

Only left audio channel works

only left audio channel works

Go step by step and test.
1.   System Preferences > Sound > Output > Internal Speakers/Headphone
       Settings for the selected device:
       Balance:
       Make sure that the slider is set at middle.
2.    AudioMIDI Setup
       Applications/Utilities/ Audio MIDI Setup.app
       Audio Devices window
       Side Bar
       Click the Built-in Output.
      Make sure that CH1 and CH2 volume sliders are matched.
3. Reset SMC and PRAM.
     Reset PRAM. http://support.apple.com/kb/PH4405
     Reset SMC.     http://support.apple.com/kb/HT3964
     Choose the method for:
    "Resetting SMC on portables with a battery you should not remove on your own".

Z30 left audio channel distorted

Hi!
The left audio channel on my Z30 started to sound distorted. At first I thought my headphones were broken but I tried several others.
I already cleaned the headphone jack.
Any idea what could be broken or if I can repair it myself?
Thanks

have you tried to insert the jack like 30 times?
I have dont that on older devices with good luck
if that dont work then maybe replace that part and many are on ebay if you device is out of warranty
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Losing left audio channel

My touch has almost completely lost the left audio channel, via the headphone jack. I can sometimes get a signal if I play with the connection. But more often than not, it's out. I thought it might be a problem with my headphones, so I bought a new pair, but the problem is still there. The problem is also there when I play music from my touch on my car stereo.
Any help would be appreciated. Thanks.

You have lost the Left Audio Channel when using the headphone jack. From the details provided by you, it appears that you have a hardware issue.
You can try performing a RESET and/or a RESTORE by following instructions [*_Listed Here*|http://www.apple.com/support/ipodtouch/assistant/ipodtouch/#section2]. (Note that if you perform a RESTORE then you will loose all data and will need to reload).
If neither of the above solves the issue then you will need to send the iPod Touch for service or take it an Apple store for evaluation and possible repair.
Axel F.

Premiere CS4 - how to duplicate left audio channel to right

I am editing old footage in which the audio signal is on the left channel only - the right channel is empty. I want to duplicate the left channel on the right so the sound comes out of both speakers. In Premiere 2.0 this was easy: right-click on a clip, choose audio options, then 'Duplicate left', and that was it. I can't figure out how to do the same thing in CS4.

FAQ:How do I create mono/stereo out of stereo/mono audio?
Cheers
Eddie
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Compressor only exporting left audio channel in AIFF! Please help!!

Hi, I just realized that the files that I have been exporting using compressor have been only exporting the left channel of audio. I am not sure what the problem is and would appreciate any help anyone could give me, as I'm on a big deadline and need to solve this ASAP.
The way I've been doing it, is I right click on the sequence name in Final Cut Pro and select Export > Export Using Compressor. Then I selected the DVD Best Quality 90 Minutes option. The AIFF file that is created seems to only have audio in the left channel. The original files themselves are definitely stereo, and play both channels in Final Cut.
I really don't understand. The Inspector within Compressor shows this information for the AIFF file:
File Extension: aiff
Estimated file size: unknown
Audio Encoder: 16-bit Integer (Big Endian), Stereo (L R), 48.000 kHz
It says Stereo, so I don't know what the problem is! Please help!!!

Glad I could help.
Sorry for being a bit unclear, and actually misguiding you a bit on the reference files. Reference files are referring to the original media/render files. As long as you do not change the actual media/render files, you should be able to do changes to your FCP project. If you have not rendered before you export a QuickTime Movie reference file of your sequence, it will render on the fly and put the render files inside the reference file with the audio.
I would recommend reading more about self-contained files and reference files in the Final Cut Pro User Manual -> Volume IV -> Part III -> Exporting QuickTime Movies -> Choosng the Type of QuickTime Movie to Export
From the manual:
Choosing the Type of QuickTime Movie to Export
You can create two kinds of QuickTime movies with the Export QuickTime Movie command—a self-contained movie or a reference movie.
Self-contained movie: A self-contained movie contains the video and audio media— all of the data used to create your movie is within a single file. This single file can be safely and easily copied to another computer without worrying that you need other files to play it back.
Reference movie: A reference movie is a very small file that contains pointers, or references, to all of the captured clips used in your sequence. The actual media is located in the original media files. If you rendered your transitions and effects before creating the reference movie, then there are pointers to your render files as well. Otherwise, all of your transitions and effects are rendered using the current level of compression, and then embedded inside the resulting reference movie, increasing its size. All audio tracks, mixing levels, cross fades, and audio filters are rendered and the resulting stereo or mono audio tracks are embedded in the reference movie.
Exporting a reference movie saves time, since you don’t have to wait for every frame of your edited sequence to be duplicated. It also saves hard disk space, since pointers to other files require little space. Reference movies are particularly useful when outputting your sequence for compression using a third-party compression utility.
However, reference movies are not very useful as a means of delivering video files to other people. If you give someone a reference movie, you must also give them the original video files associated with that movie, which can be complicated since you may not know where all the referenced media is stored on disk.
In general, exporting reference movies increases the risk that the movie may not play back. Reference movies are best used when you have short-term uses for the exported movie file, and you only plan to use them on the system you exported them to.

Strange echo in left audio channel

just got my new imac today after my old imac G5 pooped out on me. when using the headphone jack (which i do often) the left channel has a strange echo or kind of a "tracer" i guess, like a space sound in a cartoon. anyone else have this happen or is this just a freak defect? i really dont want to wait to get a new one shipped.

Hi joneskoff
Welcome to Apple Discussions
1. Open and close the GarageBand Application to reset your Audio MIDI setup.
2. Make sure the jack is fully inserted.
3. Try a different set of Headphones or a different cord if your using an External Audio Device.
4. If all the above fail to clear up the sound, you should return it for a replacement now.
Dennis

Safari has right and left audio channels inverted.

For example when I play a video on youtube, or a song on myspace. With any other application (quicktime, logic pro) everything works well.

Empty the Safari cache either from the Safari menu bar or Option + Command + E. Try a video.
Since some YouTube content requires the Flash plugin, try uninstalling then reinstalling the plugin.
http://kb2.adobe.com/cps/865/cpsid_86551.html#ostype=m,prob1=fnctn,prob2=game,
If nothing above has helped, delete Flash cookies.
http://machacks.tv/2009/01/27/flushapp-flash-cookie-removal-tool-for-os-x/

How can I separate Left and right audio channels in labview 8.5 tia sal22

How can I separate Left and right audio channels in labview
8.5 tia sal22
Greetings All
I have a working Labview vi that converts a math formula to an
audio signal. I would like to have the
right and left audio channels playing different math audio signals is this
possible?
Example
Right channel -> plays the audio signal created by a math
formula
Left channel -> plays the audio signal created by another
math formula with adjustable phase control
I’ve included a VI with a working audio and math formula but
I’m not sure how to separate the left and right channels.
I’m using labview 8.5
I looked up a similar question on the
support board and it said” use an instance of the the Sound Output Write that
has a 1D waveform data type input (i.e. Sound Output Write (DBL)). Each
element in the array would correspond to a channel.”
But I’m not exactly sure what he meant. I’m using a formula to generate the wave file
Tia sal22
Attachments:
fixed mathscript formula to sound test.vi ‏680 KB

Sorry it took so long to get back. Here's the new VI with it splitting out the left and right channels.
I'm using a Gigaport HD 8 output usb audio device but I'm experience clicks and pops. I increase the buffers
but I still get the clicks and pops. I know gigaport HD can use ASIO drivers which most likely would solve the problem but one needs to code in C for this which I'm not proficient in. Can someone recommend a work around to prevent this clicks and pops, can I somehow change my VI to fix this? Does anyone have a VI that will allow access to the ASIO latency properties?
I'm using labview 8.5
And a gigaport HD which is a USB audio device which outputs 8 analog signals (it is ASIO compatible)
tia sal22
Attachments:
lvt_audio_realtime-out left right device ID test.vi ‏68 KB

The right audio channel is no longer heard after effect assignment in the timeline

Sorry, but my English is not so good, but I try to explain the problem:
Once I clip any one assigns an effect in the timeline, works when playing only the left audio channel channel. Once I pull the clip from the timeline into the project window again, then works again the left and the right channel. How do I get the right audio channel in the interface window active again?

When I look at the properties of the file in QuickTime, here's what it shows:
DV/DVCPRO - NTSC, 720 x 480 (640 x 480)
Linear PCM, 16 bit little-endian signed integer, 32000 Hz, Left
Linear PCM, 16 bit little-endian signed integer, 32000 Hz, Unused
Linear PCM, 16 bit little-endian signed integer, 32000 Hz, Unused
Linear PCM, 16 bit little-endian signed integer, 32000 Hz, Unused
Why it's telling me the other 3 channels are unused, I have no idea. They certainly are getting used. The footage was shot in stereo and Final Cut plays it in stereo.
Here's what VLC says about the very same file:
Stream 0:
Type: Audio
Codec:PCM S16 LE (sowt)
Channels: Mono
Sample Rate: 32000 Hz
Bits per sample: 16
Stream 1:
Type: Audio
Codec:PCM S16 LE (sowt)
Channels: 1
Sample Rate: 32000 Hz
Bitrate: 512 kb/s
Stream 2:
Type: Audio
Codec:PCM S16 LE (sowt)
Channels: 1
Sample Rate: 32000 Hz
Bitrate: 512 kb/s
Stream 3:
Type: Audio
Codec:PCM S16 LE (sowt)
Channels: 1
Sample Rate: 32000 Hz
Bitrate: 512 kb/s
Stream 4:
Type: Video
Codec: (DV Video (dvc)
Resolution: 720 x 480
Frame Rate: 29.970030
Decoded Format: Planar 4:1:1 YUV

... audio channel to both speakers?

Is it possible to mix QuickTime's left audio channel to both speakers? Accordingly, QuickTime's right audio channel to both speakers?
I want to do so through Objective C in Xcode, controlling QuickTime through its API.
Thanks, John

Is it possible to mix QuickTime's left audio channel
to both speakers? Accordingly, QuickTime's right
audio channel to both speakers?
I want to do so through Objective C in Xcode,
controlling QuickTime through its API.
Thanks, John
Sorry about the double post. Please replies to this thread.
I didn't know how to edit the previous to change IDE to API.
John

My ipod's music quality is inferior. It doesnt have the surround sound/ left and right audio channel unlike my brothers ipod? is there a problem with the chip?

I have an ipod touch 4g (8GB), I got this about 2.5 months ago, the same time my brother get his. My problem is that I noticed that audio quality is better on his device than mine. I have been listening to music and had different music devices before (non-Apple product and mobile phone) and the quality of music is better when I used to listen to those devices as well as my brother's ipod touch. Im referring to the left and right audio channels. Im not so good about the technical stuff but the best explanation I can give you is in a music or a movie, there's an effect wherein you can here a sound only at the left ear phone/speaker that you cant hear at the right earphone/speaker. I mean for example in a song, a guitar intro can be heared only at the left
ear while the background music plays on the other ear. Or when theres and echo effect on the song that alternates sound on the left and right ear. I hope youre getting what Im trying to say. Im bothered that my ipod is fake or has an internal problem on the chips or something because I didnt bought this at an Apple Center/Mac Center. I bought it on a retailer. I am not able to visit any store or Genius Bar or contact an apple specialist through phone because of my work schedule and work load. I have contacted the retailer before when I tried to return it for replacement or repair but he told me that it is under Apple's warranty, not theirs. I do hope that I can get a help from you because I want to really enjoy my device. Thank you and Im looking forward for the responce/assistance form you.

I suggest you don't apply pressure to the screen - it's a Touch - you touch the screen not push it.
Phil

How to separate left and right audio channels?

I've imported some AVCHD footage that had audio recorded separately to each channel, left and right. When I put a clip in my timeline, I can separate the audio tracks, but I can't edit them individually. When I bring down the level to 0db on one track and play the clip, the audio meter still shows equal levels on both left and right channels. Any advice?
Second question - I transcoded some AVCHD footage to MP4 and can't figure out if the audio tracks remain separte after the transcoding. I used Free MTS M2TS Converter to do the transcoding. While I can choose 'dual mono" for an AVCHD clip, I do not have that same option for the MP4 clip. It offers me "6 mono" but not dual mono. Any advice?
My concern is that when I provide my clients with raw MP4 footage with right and left audio recorded separately, that they'll be able to edit each track individually.
Thanks!

Thanks Tom. I recorded 2-channel audio, not 5.1 surround. Six mono was only an option on the MP4 clip. I did change the channel configuration from stereo to dual mono on the AVCHD clip, but I still wasn't able to edit the audio independently. Even when I mute one track, the audio meter still shows equal left and right levels.

Convert a video with one audio channel (left) to both?

I have a home made DVD that for some reason only has sound in the left speaker. My audio system is fine. It's the DVD. Can iMovie (or other app) be used to route the left audio track into the right track as well so I have both audio channels working (obviously mono).
Thanks,
Steven

The problem is how to rip the DVD.
"Ripping" should not be required for a "homemade" DVD. The normal work flow here is to either copy the "main title" muxed audio and video files (VTS011.VOB thru VTS014.VOB) to your hard drive and then convert them to desired QT compatible audio and vide compression formats or use an application like HandBrake to convert the DVD directly to a more limited set of possible QT compatible compression options. (I prefer copying the files and using dedicated conversion software as it reduces the total combined disc access/conversion time requirements in most cases.
When I use QT Pro to look at these files, #3 is not viewable and, #1 only lasts about 30 secs of the intro, so I can't figure out where the content is hiding.
QT Pro is not required here. However, the QT MPEG-2 Playback component ($20) is required. Since you say you can see something, I must assume you already have this component installed. As to the ability to only see some "segments," the QT Player is very "fussy" about timecode breaks and will usually refuse to play succeeding content when they are encountered. Your best approach in such cases is to use a third-party, MPEG-based player engine that either ignores the timecode breaks (e.g., VLC) or has the ability to fix them (e.g., MPEG Streamclip).
Even the rip program HandBrake asks for individual files, so I'm held up even before being able to do what you suggest.
HandBrake does not "ask for individual files." It wants you to navigate to the VIDEO_TS folder since it needs to "see" all of the files to analyze the overall structure and generate specific menu options like title selections, chapter selections, alternate audio selections, etc. On the other hand, applications like iSquint, MPEG Streamclip, FFmpegX, Visual Hub, etc. use individual files or "sets" of files usually constituting a single title program.

Garbled left audio channel in MuVu Mi

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