how to split audio to separate channel ??? [Archive]

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15th October 2002, 16:59

I have the following audio stream

test_stereo.mp2

and I want to split to

test_mono_left_channel.mp2
test_mono_right_channel.mp2

Is there any software which can do that ???

htc10825

15th October 2002, 18:05

1. convert it to stereo .wav file in winamp (options/output/diskwrite)
2. load in a wave editor such as WaveLab, save the left and right
channel as mono wave file separately (save special/save left...)
3. encode the mono .wav file as mono mp2.

15th October 2002, 18:59

Is there any way to split the channel without
reconvert, I thinking about if is possible
to demultiplex the left and right channel
without reconverting to wave ???

I want to run it in midnight. Is there any software
can do the job in batch mode ???

It this possible or have anyone do it in BeSweet ???

DSPguru

15th October 2002, 20:58

i don't know of any tool who offers this.
although, if your source mp2 is encoded as 'dual channel' this might be possible to 'demux' the mp2 into two mono mp2s. (loselessy! without decoding+encoding).

as for waves,
BeSplit can be used to demux N mono waves out of a N-channles wave file.
(that's also includes N=2 ;)).

RadicalEd

15th October 2002, 23:14

you'd think if its not joint stereo this should be possible.. :\

DSPguru

16th October 2002, 06:00

joint stereo - impossible.

htc10825

16th October 2002, 12:04

if your source mp2 is encoded as 'dual channel' this might be possible to 'demux' the mp2 into two mono mp2s. (loselessy! without decoding+encoding).

with BeSplit?

htc10825

16th October 2002, 12:09

if your source mp2 is encoded as 'dual channel' this might be possible to 'demux' the mp2 into two mono mp2s. (loselessy! without decoding+encoding).

If yes, I think it will be also possible to do this with the source encoded in stereo, but not in j-st.

RadicalEd

16th October 2002, 22:00

Originally posted by DSPguru
joint stereo - impossible.

thats what I said ;)

htc10825

17th October 2002, 12:29

@RadicalEd
It it not necessary to repeat well-know facts and you've posted it yourself.

Important is how to split the mp2 dual channel to 2 mono channel directly. Post you anwer here if you know what DSPguru has no answer of my inquiry jet, but claimed it.

RadicalEd

17th October 2002, 22:08

DSPguru is the one who repeated the fact ;P

htc10825

18th October 2002, 13:38

Under your neckname I see the discription "AMV.org junkie"
It had better for "short, useless message junkie"
At least it is better than "long but useless message junkie" :)

RadicalEd

21st October 2002, 03:10

amv.org pretty much = short useless messages, yes, I've been severely tainted by spam ever since I migrated over there 4 months ago. Anyway Phade cleaned the place out last week and it's boring now since the off topic forum is auto-pruned every 3 days :/ they killed spam.

[end long useless message] ;)

ok, thats enough :D

DSPguru

15th August 2003, 22:19

Originally posted by DSPguru
i don't know of any tool who offers this.
although, if your source mp2 is encoded as 'dual channel' this might be possible to 'demux' the mp2 into two mono mp2s. (loselessy! without decoding+encoding).

as for waves,
BeSplit can be used to demux N mono waves out of a N-channles wave file.
(that's also includes N=2 ;)). mp2 demuxing of dual channel is now supported in BeSplit v0.9b6 (http://besplit.doom9.org).