Using sfplay~ to playback multichannel

Tom Haig's icon

hey,
I'm making an audio / video patch that will playback audio samples over a 4 channel system. I've only ever used sfplay~ to playback mono / stereo files so far. I have an older version of the patch that plays the audio with 4 channel using 4 seperate sfplay~ objects. However, expanding the patch, I want to have several 4 channel samples playing at once, so I've trying to use 1 sfplay~ object per sample... this leads me to a couple of puzzlers...

-Is it possible to make 1 sfplay~ object playback 4 seperate audio files? (at present they are all mono)

- If not, does anyone know how I can compile the 4 mono samples into a 4 channel sample? - again, all my experience using audio editors has been mono / stereo, so its not a process I'm too familiar with.

I'd be very grateful for any help.
thanks very much
Tom

Emmanuel Jourdan's icon

On 29 nov. 06, at 17:52, register wrote:

> -Is it possible to make 1 sfplay~ object playback 4 seperate audio
> files? (at present they are all mono)

As far as I know, this is not possible.

> - If not, does anyone know how I can compile the 4 mono samples
> into a 4 channel sample? - again, all my experience using audio
> editors has been mono / stereo, so its not a process I'm too
> familiar with.

Assuming you're on MacOS X, you may try that:

Best,
ej

Jakob Riis's icon

>- If not, does anyone know how I can compile the 4 mono samples into a 4
>channel sample? - again, all my experience using audio editors has been
>mono / stereo, so its not a process I'm too familiar with.

You can use Emmanuel Jourdan's SoundFilesMerger

/J

pdelges's icon
Mériol Lehmann's icon

Use EJ's SoundFilesMerger to create multi-channel audiofiles:

bernardobarros2@gmail's icon

Amadeus opens 4-ch sound files but I doesn't play.
Audacity can open and play it,
but I'm afraid It can only save stereo wave files.

I guess using 4 times sfplay~ in a sub-patch
will be less work.

---------- Forwarded message ----------
From: Meriol Lehmann
Date: 29/11/2006 20:04
Subject: [maxmsp] Re: Using sfplay~ to playback multichannel
To: maxmsp@cycling74.com

Use EJ's SoundFilesMerger to create multi-channel audiofiles:

http://www.e--j.com/sphpblog/
--
Meriol Lehmann
Technical Director
AVATAR - Association de création et de diffusion sonores et électroniques
lenomdelachose.org
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davidestevens's icon

I didn't mention this before because it isn't free, but I bought
Sample Manager specifically to join and separate multi channel files
- quickly.

It runs without limitation for 15 days, so if you only needed to
merge/split files .... ;-)

David

On 30 Nov 2006, at 14:50, bbarros wrote:

> Amadeus opens 4-ch sound files but I doesn't play.
> Audacity can open and play it,
> but I'm afraid It can only save stereo wave files.
>
> I guess using 4 times sfplay~ in a sub-patch
> will be less work.
>
>

pdelges's icon

On 30 nov. 06, at 15:50, bbarros wrote:

> Audacity can open and play it,
> but I'm afraid It can only save stereo wave files.

As I wrote before, you have to change the preferences in Audacity to be
able to save multi tracks files. BTW, you also have of course to use
"Export As...".

_____________________________
Patrick Delges

Centre de Recherches et de Formation Musicales de Wallonie asbl
http://users.skynet.be/crfmw/max

bernardobarros2@gmail's icon

sorry, I didn't see it.
Good to know, anyway.

2006/11/30, Patrick Delges :
>
>
> On 30 nov. 06, at 15:50, bbarros wrote:
>
> > Audacity can open and play it,
> > but I'm afraid It can only save stereo wave files.
>
> As I wrote before, you have to change the preferences in Audacity to be
> able to save multi tracks files. BTW, you also have of course to use
> "Export As...".
>
> _____________________________
> Patrick Delges
>
> Centre de Recherches et de Formation Musicales de Wallonie asbl
> http://users.skynet.be/crfmw/max
>
>

Stefan Tiedje's icon

Patrick Delges wrote:
> As I wrote before, you have to change the preferences in Audacity to be
> able to save multi tracks files. BTW, you also have of course to use
> "Export As...".

You didn't mention that you need the newest beta for that, the official
stable version can't do it...

Stefan

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Stefan Tiedje------------x-------
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