Subject:Question on splitting a stereo wav and saving each channel separately..

Posted by: ButchNap

Date:2/9/2003 10:58:37 PM

Hi everyone.. I just got Soundforge several days ago and it looks very impressive.. Unfortunately I'm having trouble with the first thing I'm trying to do with it, which is to load in a stereo wav file and then save the right and left channels into two separate wav files. I've been flying back and forth in the manual but haven't quite figured out how to do it.. And I really gotta get it done by tomorrow night! Can anyone help out a brother in a hurry? I know it's gotta be easy.. Please advise if possible, and thanks in advance.


Butch

Subject:RE: Question on splitting a stereo wav and saving each channel separately..

Reply by: MJhig

Date:2/10/2003 1:30:04 AM

Let's assume it's a 16/44 .wav and that's what you want to save it as.

Load the stereo file into SF,
Double-click the file at the very top of the wav form window, the top/left channel will highlight,
File > Save as > Save as type > Wave (Microsoft) (*.wav),
Format > PCM,
Attributes > 44,100 Hz, 16 bit Mono,

Repeat double-clicking the very bottom of the wav form window (right channel).

MJ

Subject:RE: Question on splitting a stereo wav and saving each channel separately..

Reply by: ATP

Date:2/10/2003 7:36:42 AM

are you sure that will work? it will take the left channel automatically during the save process? or will it simply blend both channels that way? not saying you've got it wrong btw, it's just i've never heard of this solution. i gotta try that out when i get back home. :)

an alternative (of which i'm sure it works) is double-clicking in either the top(left) or bottom(right) channel, and dragging it out of the window into an empty spot in the SF workspace. it will create a new window, which you can then save as a mono wave file.

Subject:RE: Question on splitting a stereo wav and saving each channel separately..

Reply by: MJhig

Date:2/10/2003 1:17:14 PM

ATP, you are correct, I got a brain storm/fart while typing the procedure of saving a step, they must be dragged to a new file first.

MJ

Subject:RE: Question on splitting a stereo wav and saving each channel separately..

Reply by: smithbo

Date:2/18/2003 3:58:57 PM

Hi, ButchNap
I'm constantly doing the very thing you are talking about. To convert hours of audio material into wave (and then MP3), I feed two tape decks into my sound card, one on the left channel and the other on the right. To get the individual channels back into monaural wave files, just highlight the left or right channel (or any portion of the channel if you want only a selected time period), and drag it onto an empty area of the SoundForge workspace. It creates a new monaural wave file of the same sampling frequency.

Interestingly, this is quite a CPU intensive process because the wave format is not like two separate data "tracks" which can just be peeled apart. Actually the left and right data is all in a single "stream" which must be totally decoded and re-encoded to produce the extracted monaural file. So plan on using a fast CPU or waiting a good while for the extractions to happen.

Bob

Subject:RE: Question on splitting a stereo wav and saving each channel separately..

Reply by: Sonic

Date:2/18/2003 4:42:31 PM

In all likelihood, de/re-interleaving will be done on-the-fly in the next major version of Sound Forge, so you won't have to wait around for this type of processing. It was just a little more than we could manage in 6.0.

J.

Subject:RE: Question on splitting a stereo wav and saving each channel separately..

Reply by: smithbo

Date:2/18/2003 5:19:25 PM

Thanks!! That was great (and unexpected) news! Looking forward to the next edition.

Bob