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How can I convert stereo to monaural (mono)?


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#1 bkatzung

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Posted 06 October 2007 - 10:26 AM

I was given an AVI file with audio recorded only to the left channel.

Is there a setting, audio filter, or whatever to allow me to duplicate the left channel to the right channel, thus converting from stereo to monaural (mono) on the final DVD?

Maybe I'm not searching for the right keywords, but I can't find anything in the interface, documentation, discussion boards, or search engines.

Please help. Thank you.

  - Brian

#2 grandpabruce

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Posted 06 October 2007 - 12:56 PM

QUOTE (bkatzung @ Oct 6 2007, 01:26 PM) <{POST_SNAPBACK}>
I was given an AVI file with audio recorded only to the left channel.

Is there a setting, audio filter, or whatever to allow me to duplicate the left channel to the right channel, thus converting from stereo to monaural (mono) on the final DVD?

Maybe I'm not searching for the right keywords, but I can't find anything in the interface, documentation, discussion boards, or search engines.

Please help. Thank you.

  - Brian


Open VideoWave, click on View, click on Media Selector, browse to the .avi file, right click on it, then select Extract Audio.  Save it as a .wav file to a folder you can find on your hard drive.

Get out of VideoWave, open Sound Editor, and bring that saved wav file.  I am not sure which option in tools you can use to have the left channel also be in the right channel.  Senior moment.  Sorry.

Hopefully someone will drop in and help you.  And, refresh my memory.
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Main System:
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#3 malatekid

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Posted 06 October 2007 - 01:15 PM

From reading what you want to do, it sounds to me you want to got from mono to stereo.

To supplement gardpabruce's suggestion:

1) Extract the audio from the video (as outlined by GPB above)
2) Open the extracted audio in Sound Editor
3) To apply one audio channel to both channels, choose "Right on both" for channel control in the Input section of the Clip Properties dialog box.
4) Save the modified audio
5) Open the video file in Videowave
6) Mute the native audio of the video
7) Bring in the modified video (from step 4) and put to music track
8) Preview the video to ensure video and audio are in sync
9) You can use Output As to create a new video in mpeg format (or any other format presented in the option)

Edit: After rereading the original post, step 3 should say "Left on both".

Edited by malatekid, 06 October 2007 - 03:27 PM.

"The work of science is to substitute facts for appearances, and demonstrations for impressions"
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#4 grandpabruce

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Posted 06 October 2007 - 01:24 PM

QUOTE (malatekid @ Oct 6 2007, 04:15 PM) <{POST_SNAPBACK}>
From reading what you want to do, it sounds to me you want to got from mono to stereo.

To supplement gardpabruce's suggestion:

1) Extract the audio from the video (as outlined by GPB above)
2) Open the extracted audio in Sound Editor
3) To apply one audio channel to both channels, choose "Right on both" for channel control in the Input section of the Clip Properties dialog box.
4) Save the modified audio
5) Open the video file in Videowave
6) Mute the native audio of the video
7) Bring in the modified video (from step 4) and put to music track
8) Preview the video to ensure video and audio are in sync
9) You can use Output As to create a new video in mpeg format (or any other format presented in the option)


Thanks, Malatekid!  I know I had fooled with it before but never had the opportunity to actually have to use it.

Now, in addition to what you said, under step 4), you have to use Export Track/Clips to get the actual .wav file saved.
Life is good!
GrandpaBruce
Vietnam Vet - 1970 - 1971

Main System:
ASUS P6T Deluxe V2 LGA 1366 Intel X58 ATX Intel Motherboard; Cooler Master ATCS 840 Case
Intel Core i7 920 Nehalem 2.66GHz 4 x 256KB L2 Cache 8MB L3 Cache LGA 1366 130W Quad-Core Processor
CORSAIR DOMINATOR 3GB (3 x 1GB) 240-Pin DDR3 SDRAM DDR3 1866
PLEXTOR Black DVD Burner, Model PX-880SA; Pioneer Black 8X BD-R 2X BD-RE 16X DVD+R Burner
EVGA GEFORCE GTX 670 2GB Video Card
Creative Sound Blaster X-Fi Titanium Fatal1ty Champion Series Sound Card
Windows XP Pro w/SP3

Backup Computer:
ASUS A8N32-SLI Deluxe
Windows 7 Pro w/SP1

#5 malatekid

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Posted 06 October 2007 - 03:24 PM

QUOTE (grandpabruce @ Oct 6 2007, 05:24 PM) <{POST_SNAPBACK}>
Thanks, Malatekid! I know I had fooled with it before but never had the opportunity to actually have to use it.

Now, in addition to what you said, under step 4), you have to use Export Track/Clips to get the actual .wav file saved.

I had the same issue before, too. And now sharing the solution.
"The work of science is to substitute facts for appearances, and demonstrations for impressions"
   -- John Ruskin


Roxio Creator 2012 Pro
Dell XPS 410
Windows XP Professional,Service Pack 3
Intel 2 Duo Processor E6700 (2.66GHz,1066FSB) with 4MB cache
4GB DDR2 SDRAM at 800MHz
500GB Serial ATA II Hard Drive(7200RPM)

1 GB DDR3 EVGA GeForce GT 630
Sound Blaster® X-Fi™ XtremeMusic (D) Sound Card
Samsung SH-S203B, Asus DRW-2014L1T
Epson R300 printer, Epson 4490 Scanner

#6 grandpabruce

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Posted 06 October 2007 - 04:21 PM

QUOTE (malatekid @ Oct 6 2007, 06:24 PM) <{POST_SNAPBACK}>
I had the same issue before, too. And now sharing the solution.


LOL!  Life is good.  smile.gif
Life is good!
GrandpaBruce
Vietnam Vet - 1970 - 1971

Main System:
ASUS P6T Deluxe V2 LGA 1366 Intel X58 ATX Intel Motherboard; Cooler Master ATCS 840 Case
Intel Core i7 920 Nehalem 2.66GHz 4 x 256KB L2 Cache 8MB L3 Cache LGA 1366 130W Quad-Core Processor
CORSAIR DOMINATOR 3GB (3 x 1GB) 240-Pin DDR3 SDRAM DDR3 1866
PLEXTOR Black DVD Burner, Model PX-880SA; Pioneer Black 8X BD-R 2X BD-RE 16X DVD+R Burner
EVGA GEFORCE GTX 670 2GB Video Card
Creative Sound Blaster X-Fi Titanium Fatal1ty Champion Series Sound Card
Windows XP Pro w/SP3

Backup Computer:
ASUS A8N32-SLI Deluxe
Windows 7 Pro w/SP1




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