Detaching audio converts to mono

hi. my video clip has stereo audio. it plays fine until i detach the audio, then for some reason imovie 09 converts it to left channel/mono. i know i can stick it in garageband and double up the track to make it seem like sterero, but...
why does this happen and how can i fix it?
the workaround on every. single. clip. would become rather annoying

if detaching the audio results in left channel only, covert the clip before detaching the audio

Similar Messages

  • How do you change the speed of a detached audio clip?

    I have a piece of detached audio.  Video Frame rate is 23.98.  The piece of Video above it is Video Frame Rate 24.
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    Nope, the Automatic Speed did not work.  I exported the XML, and then ran it through X2Pro to try and get my AAF, and it still spits out conform warnings/errors on those same spots.  Automatic Speed apparently did nothing helpful to my situation.  (Can Anyone explain Automatic Speed?)
    Will have to try going through Cinema Tools per the similar issues noted in this conversation: http://forums.creativecow.net/thread/344/28007
    Curious to see what FCPX would do with this media, importing the 24p file to a 25 Project cause a noticeable shift in both time and pitch.
    I imported the time coded audio separately, and played it against the obviously speed and pitched changed video with embedded audio. The files did not sync.
    The audio remained in time and pitch, while the video didn't. So the audio tc doesn't seem to effect playback in FCPX, but video definitely does, and it seems rather buggy.
    So, if your video is 24.0 and your audio is 23.98 and you are in a 23.98 timeline, FCPX might be changing the speed of the video without really reporting it. Resetting speed doesn't do anything, hitting "automatic speed" screws it up a bit more (it goes the wrong way). Changing the speed to something like 96% (FCPX reports 96% but I know it's really ((24000/1001)/25) which is just short of 96%. Turning off the "preserve pitch" checkbox actually pitched the audio back to normal.
    I didn't create the 24.0 vs 23.9 media that you have, but perhaps you are having similar issues, or a different combination/permutation therein.
    But to answer your question, the time coded audio was not changed, only embedded audio.
    and
    But here some notes which makes things hopefully clearer.
    Resampling and changing playback speed are two totally different things.
    Samplerate for audio is the same as fps for video (not dpi for video) so let's call it sps.
    You can record audio at any sampling rate. But let's take 48 kHz and 32 kHz here.
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    Now for those poor guys who have to work with NTSC:
    A real world second is not a second in NTSC video world. Its 1001/1000 seconds.
    So selecting a 48k sps audio preset in a timeline preset means that a real world audio of 60 seconds is only 1000/1001x60. That means that those 60 seconds are only 59.94 seconds long. Its too short.
    One way - if you stay strictly in NTSC - is to record audio with 48048 Hz. This way a real world 1 second audio will match a 1 second NTSC video.
    Next option with BWAVE files is to change the playback settings in the BEXT header of the file. This won't resample the file!!!
    Now about the TC. BWAVE doesn't have a TC in a way you're used when handling video. It has a timestamp in the header. This timestamp contains the Samples after Midnight. Based on that the NLE will convert this to TC which can be displayed. So in NTSC world this might give a wrong interpretation.
    For example if you have a "Start TC" of 00:10:00:00 (thats what you see on your audio recorder) it means that using 48kHz the timestamp is at 600x48,000 = 28,800,000 samples. Since the real sampling rate in the timeline though is 48048 Hz you have to divide the source stamp by this number. This results in 9.99000999000999 minutes. So for a 23.976 fps project this is a TC of 00:09:59:10.
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    Using an AIFF there aren't these options.
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  • Audio imported becomes mono

    When I import a stereo audio file into GarageBand, GarageBand plays it in mono even though it shows two sound waves in the track. How do I get it to play back in stereo?

    I'm not sure if this makes a difference but it might:
    Did you just switch the input to Stereo *after* you dragged in your material and edited it or before? If you switched it to stereo after, the material may have already been converted into mono. You may need to start again with it set to stereo first if you want to bring the audio tracks into your project and maintain their stereoness.
    (Or, if the problem is only with playback, are you going through a mixer with the left output panned to the left, and right output panned to the right? Sometimes unpanned outputs can make stereo sources sound mono)

  • Convert two mono tracks into one stereo?

    I've imported a clip from my DV camera into Final Cut. For whatever reason, the clip audio is two mono tracks rather than one stereo track. Is there a way for me to convert this to a stereo track after the import?
    Thanks very much,
    Greg
    G5 Dual 2.5 GHz   Mac OS X (10.4.6)  

    Select both clips in the Timeline, then go to Modify->Stereo Pair (Option L). But if both clips contain the same audio information, it won't really be stereo ... just two tracks panned left & right.
    If you want the audio to come in as stereo when you capture next time, make sure that you have the Capture settings for the audio set to "stereo."
    -DH

  • How do I export detached audio files as separate files, for Pro Tools processing?

    My project is a live band performance. I have every song as a separate Event with associated audio. I have detachd all the audio from all the video Events. I now want to Export the audio files to Pro Tools for editing, then Import the edited audio back into FCP X and snap the edited audio to the associated video Events.
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    As a 2nd try, I created Sub-Roles for each audio clip, and named each one with a distinct Sub-Role name. I then Exported all these Sub-Roles (yes, tedious). The result was that every exported WAV file was the same size, the same as the file size in my first try. The only audio that could be heard in each file was the audio in that particular song, but FCP X still created the very large file with silence in all the rest of the file. Since the file lengths don't match the original audio fil lengths, there will be a problem when I Import the edited files back into FCP X and want to Snap them into place.
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    How can I export the individual detached audio clips as separate files, the length of each file equaling the length of the original audio file in FCP X?
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    Michael Holmes1 wrote:
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    No.
    You need to explore Compound Clips. This workflow may or may not be of help.
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    Select the Event Browser, create a new Event and call it 'Effects'.
    Drag the Compound Clip into this Event.
    Right-click the clip and select 'Open in Timeline'.
    Select the timeline and press Option+W. This will add a Gap Clip to the timeline.
    Select the gap clip and press Ctrl+D then type in the duration you want the clip to be.
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    Andy.

  • Detaching audio from video clips

    Hi
    After trying the standard 'detach audio' button I cant seem to find a way to completley detach audio from a clip in order to hear the track I have added to the clip. All I can seem to do is turn the volume right down, and inturn still able to hear it, which is proving annoying!
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    Thanks for your reply Geoff,
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  • How do I get the ducking to work for detached audio clips to reduce the volume of background music?

    I have detached audio from clips which explains what I am doing in the video clips (they are muted). I also have a song that I want to play at normal volume in the background when there isn't an audio clip in which I am talking and to reduce volume when I am. On the audio clip of me talking I have the ducking checked and set but there is no change in the music volume. Does anyone know how to fix this?

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    I understand you are having issues with the sound from the receiver of your iPhone. Please use the following steps in the article below to try and isolate and resolve this issue.
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  • Audio Stereo to Mono

    After reading the help manual, I don't see any info on changing a stereo audio clip to mono once it is already in the timeline. I am probably missing something, I hope. Any help? Thanks

    >Can this be done after the clip has been put in the timeline?
    Think about what you're asking for. Mono clips go in mono tracks. Stereo clips go in stereo tracks. There is no way to click a button to change one into the other.
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    You will also find links to many
    free tutorials in the PremiereProPedia that will quickly show you how things are done in Premiere Pro.
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    Eddie
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    RSS feed)
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    Forum FAQ

  • Is there a way to detach audio?

    I love FCE 4. It is 100000 times better then iMovie. But there is just one thing that's was in iMovie that I am not finding in Final Cut. And that is detaching audio. I'm sure there is a way to do this, but how?

    Select the clip in the timeline. Then do *Modify > Link*
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  • (True) "Real" Stereo tracks converted to Mono after 5.1 update

    Hello:
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    The unwanted stereo to mono conversion has happened once or twice the past and I've never really figured out a remedy other than reimporting the AIFF files.
    I was simply curious if anyone had experienced this phenomenon before and discovered a fix before I began the task of reimporting the stereo tracks. Btw, earlier versions of the project were unaffected by the update (if indeed it was the 5.1 update that cause the problem)—so it appears that only the current working project was altered.
    Thanks!
    ~Huck

    I discovered I had only one option (mono) until I unplugged my Mbox and selected System Setting as input source in GarageBand. At that point, stereo became available as a option and I went track by track enabling stereo playback. Thank you very much for your assistance! While I'm not entirely certain why having my Mbox selected as the input source changed all my "real" tracks to mono, at least I don't need to go through the hassle of re-importing the source material. I need to use the Mbox for guitar and bass tracks, so hopefully this was a one-time oddity.
    Again, thank you for your help!
    ~Tom

  • How can I slide detached audio left/right in sample increments, rather than frame increments?

    I exported a detached audio file from FCP X to Pro Tools for processing, and I have now imported the processed audio file back into FCP X.
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    Question:
    How can I elect to slide the audio left/right in the timeline in increments of the audio samples, rather than in increments of video frames?
    Since FCP X allows you to view the audio in Samples, it certainly must somehow let you slide/nudge the audio in Samples........I just haven't found it. 

    Let's be clear about one thing. There is no way on earth any human being can percieve a one frame discrepancy in sync at a frame rate of 24fps or higher. Going to increments smaller than one frame, while it can be done, makes no difference to the way the media is viewed. Presumably your viewer will not have the benefit of multiple synced waveforms as a guide.
    It sounds like you have an alignment problem in ProTools. This should be a incredibly simple to fix in that application.
    The problem may laos be one of sample rate difference. What are the specs of your export audio file from FCP and the specs of your imported replacement file coming from ProTools. They should line up exactly if the sample rates are identical.

  • Setting audio recording from mono to stereo

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    Select them all the timeline and press Opt-L.

  • Why Does FCE capture DV audio as dual mono instead of stereo?

    FCE captures DV audio as dual mono audio files instead of a single stereo audio file. You can see this if you "Show Movie Properties" in Quicktime. Files I captured in Premiere 6 years ago have a single stereo file. The problem is that the new dual mono format for DV won't play on the Final Cut Pro 3.04 installed on my wife's G4 (OS 10.4.11, Quicktime 7.6.2). FCP 3.04 doesn't see any audio for these dual mono files though it will play the video. It won't even create an audio waveform. But FCP 3.04 plays the older stereo audio clips captured in Premiere just fine. And if I export the dual mono files out of QT as a stereo file, then FCP 3.04 will play them just fine.
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    The problem is in your wife's machine. She is using a version of the OS and QuickTime that are much too new for the version of the software she's using. She really not not be using an OS newer than 10.4.10 and QT should 7.2 or earlier.
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