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  1. Member
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    Hello & Thanks ,
    I have a binaural .wav file that is apparently two channels but shows up in Audacity as one Track .
    When I open with VLC , I can mute Left or Right channels , but don't know how to split it into actual Left/Right tracks .
    Anyone know how to do this ?
    Thanks...Vern
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  2. Member netmask56's Avatar
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    In both Audacity and Adobe Audition it opens as a stereo track as per attached image
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  3. Originally Posted by vmars316 View Post
    H
    When I open with VLC , I can mute Left or Right channels , but don't know how to split it into actual Left/Right tracks .
    Can you clarify - did you want to output 2 separate mono wavs, derived from each L and R channel ?

    If so , you can use eac3to or ffmpeg . eac3to will automatically label the channels in the output file name

    eac3to
    Code:
    eac3to input.wav output.wavs
    ffmpeg
    Code:
    ffmpeg -i input.wav -map_channel 0.0.0 left.wav -map_channel 0.0.1 right.wav
    IIRC, audacity can channel map too, so you should be able to specify it that way. Or even delete 1 channel, then export, then repeat for the other
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  4. Member netmask56's Avatar
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    If you want 2 separate wav files select 'split stereo track to mono' drop down menu within track details on left. Then Export multiple audio - done
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    Originally Posted by netmask56 View Post
    In both Audacity and Adobe Audition it opens as a stereo track as per attached image
    Thanks ,
    yes I know , but still shows as one track , two channels .
    How can I split off each channel as a separate track ?
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  6. Code:
    ffmpeg -i stereo.wav -map_channel 0.0.0 left.wav -map_channel 0.0.1 right.wav
    Code:
    ffmpeg -i stereo.wav -filter_complex "[0:0]pan=1c|c0=c0[left];[0:0]pan=1c|c0=c1[right]" -map "[left]" left.wav -map "[right]" right.wav
    https://trac.ffmpeg.org/wiki/AudioChannelManipulation

    After this you can do whatever you wish...
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  7. If you use OcenAudio you can do it easily. Load the audio file. It will display as a musical note in the left panel.
    Right-click on it and a submenu will appear. Simply 'Extract Left Channel', repeat on original file and 'Extract Right Channel'.
    You will now have three files showing; the original, and the left & right separations.
    Right-click on each of these new files in turn and use 'Save As'. Save or transform, your choice.
    Hope that is easier for you.
    Last edited by transporterfan; 6th Feb 2017 at 13:43. Reason: missed a word out
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  8. Member netmask56's Avatar
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    Originally Posted by vmars316 View Post
    Originally Posted by netmask56 View Post
    In both Audacity and Adobe Audition it opens as a stereo track as per attached image
    Thanks ,
    yes I know , but still shows as one track , two channels .
    How can I split off each channel as a separate track ?
    I ntold you in my previous post


    If you want 2 separate wav files select 'split stereo track to mono' drop down menu within track details on left. Then Export multiple audio - done
    Please read the help file so that you know where all the menu items are located......
    BeyonWiz T3 PVR ~ Popcorn C200 and A-500 ~ Samsung ES8000 65" LED TV ~ Windows 7 ~ Yamaha RX-A1030 ~ QnapTS851-4G
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  9. Member netmask56's Avatar
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    Here it is
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  10. Member
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    Originally Posted by netmask56 View Post
    Originally Posted by vmars316 View Post
    Originally Posted by netmask56 View Post
    In both Audacity and Adobe Audition it opens as a stereo track as per attached image
    Thanks ,
    yes I know , but still shows as one track , two channels .
    How can I split off each channel as a separate track ?
    I ntold you in my previous post


    If you want 2 separate wav files select 'split stereo track to mono' drop down menu within track details on left. Then Export multiple audio - done
    Please read the help file so that you know where all the menu items are located......
    Yes , I did that and I get two identical tracks . Not what I want .
    In the wav file Each channel has only 1 tone .
    When I try your way I get two identical tracks . Not what I want .
    I want 1 tone on trackA and the other tone on trackB .
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    Originally Posted by transporterfan View Post
    If you use OcenAudio you can do it easily. Load the audio file. It will display as a musical note in the left panel.
    Right-click on it and a submenu will appear. Simply 'Extract Left Channel', repeat on original file and 'Extract Right Channel'.
    You will now have three files showing; the original, and the left & right separations.
    Right-click on each of these new files in turn and use 'Save As'. Save or transform, your choice.
    Hope that is easier for you.
    In the wav file Each channel has only 1 tone .
    I want 1 tone on trackA and the other tone on trackB .
    OceanA gives me the same two tones on each track .
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  12. Member netmask56's Avatar
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    Originally Posted by vmars316 View Post
    Originally Posted by netmask56 View Post
    Originally Posted by vmars316 View Post
    Originally Posted by netmask56 View Post
    In both Audacity and Adobe Audition it opens as a stereo track as per attached image
    Thanks ,
    yes I know , but still shows as one track , two channels .
    How can I split off each channel as a separate track ?
    I ntold you in my previous post


    If you want 2 separate wav files select 'split stereo track to mono' drop down menu within track details on left. Then Export multiple audio - done
    Please read the help file so that you know where all the menu items are located......
    Yes , I did that and I get two identical tracks . Not what I want .
    In the wav file Each channel has only 1 tone .
    When I try your way I get two identical tracks . Not what I want .
    I want 1 tone on trackA and the other tone on trackB .
    Then use simply use the option "split stereo track" located immediately above "split track to mono"
    BeyonWiz T3 PVR ~ Popcorn C200 and A-500 ~ Samsung ES8000 65" LED TV ~ Windows 7 ~ Yamaha RX-A1030 ~ QnapTS851-4G
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    netmask56 ,
    Thanks ,
    Then use simply use the option "split stereo track" located immediately above "split track to mono"
    When I do that , it splits it , but no matter how I save it (wav or mp3) ,
    when I open saved-file , it again shows up as two-channels-onetrack .
    Is there a way so save it as two traacks ? Thanks
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  14. Originally Posted by vmars316 View Post
    Originally Posted by transporterfan View Post
    If you use OcenAudio you can do it easily. Load the audio file. It will display as a musical note in the left panel.
    Right-click on it and a submenu will appear. Simply 'Extract Left Channel', repeat on original file and 'Extract Right Channel'.
    You will now have three files showing; the original, and the left & right separations.
    Right-click on each of these new files in turn and use 'Save As'. Save or transform, your choice.
    Hope that is easier for you.
    In the wav file Each channel has only 1 tone .
    I want 1 tone on trackA and the other tone on trackB .
    OceanA gives me the same two tones on each track .
    No it doesn't. The tones are very similar, I admit , but the separated tracks ARE the two tracks you want.
    They will be the same two tracks in Audacity or any other software you might use.

    Edit: I think I see. Pull FileA and FileB together into Audacity. You will have 2 tracks A+B, one above the other.
    netmask56 has already explained how to do it in Audacity alone. To be frank, you don't seem to be able to
    differentiate between the tracks you have separated, they are so similar.
    What is it you are trying to accomplish? Maybe someone can help by eliciting what it is you are trying to do.
    Last edited by transporterfan; 7th Feb 2017 at 14:29.
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  15. Member netmask56's Avatar
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    Originally Posted by vmars316 View Post
    netmask56 ,
    Thanks ,
    Then use simply use the option "split stereo track" located immediately above "split track to mono"
    When I do that , it splits it , but no matter how I save it (wav or mp3) ,
    when I open saved-file , it again shows up as two-channels-onetrack .
    Is there a way so save it as two traacks ? Thanks
    So which menu item did you choose to save the files?
    Hopefully this one
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    What the OP wants are two monaural audio streams in a single file. But WAVE and MP3 files don't support multiple streams. They only support multiple channels. When apps like Audacity see a 2-channel WAVE, they assume it's stereo. You will have to use something like an m4a container to support multiple audio streams.
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    Hello & Thanks All ,
    Audacity-1
    I think I can get what I want 'IF I can select only ONE track at a time in Audacity' .
    My thought is: I can create a single tone track mono , trackA .
    Then create a second single tone track mono , trackB .

    Open up another instance of Audacity-2 for good_morning.wav .
    Then 'IF I can select only ONE track at a time in Audacity ' ,
    Copy one track from Audacity-2 .

    Go back to Audacity-1 and Paste the Copied track into trackA .
    Then do the same for trackB .

    Of course it all depends on can I Select & Copy only one track in Audacity .

    Thanks
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  18. Originally Posted by vmars316 View Post
    Of course it all depends on can I Select & Copy only one track in Audacity.
    http://manual.audacityteam.org/man/audacity_selection.html#track_mouse
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  19. split stereo track to mono
    delete one track
    export
    undo delete
    delete other track
    export
    Last edited by jagabo; 14th Feb 2017 at 11:44.
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    raffriff42 & jagabo , Thanks ,
    Got just what needed .

    Except that now I need to find a .* file type that can handle both tracks .
    It seems they all warn that they will merge both tracks into one track . ??
    What file type can I use ?

    Thanks
    Last edited by vmars316; 15th Feb 2017 at 21:52.
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  21. Originally Posted by vmars316 View Post
    Except that now I need to find a .* file type that can handle both tracks .
    MOV is one:
    Code:
    ffmpeg -i "1.wav" -i "2.wav" -map 0 -map 1 -c:a copy "2streams.mov"
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  22. MKV is another.
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