Two sound cards on one PC?

[Johan Smit]

Hi,
Is it at all possible to run two sound cards simultaneously on one PC?
I would like to couple the audio output from one sound card to the mic
input of the other PC, and run them simultaneously.
Thank you
Johan Smit

 

[Ian Stirling]

Johan Smit <smitjsno@spamlantic.net> wrote:

Hi,
Is it at all possible to run two sound cards simultaneously on one PC?
I would like to couple the audio output from one sound card to the mic
input of the other PC, and run them simultaneously.

Yes, depending on software.
I have three in my machine. (one is broken and has been rewired as a
PCI powered amplifier.)

--
http://inquisitor.i.am/ | mailto:inquisitor@i.am | Ian Stirling.
---------------------------+-------------------------+--------------------------
Tad Williams has an interesting new fantasy: http://www.shadowmarch.com/

 

[Harry Conover]

smitjsno@spamlantic.net (Johan Smit) wrote in message news:<3f80ed8e.2549986@news.saix.net>...

Hi,
Is it at all possible to run two sound cards simultaneously on one PC?
I would like to couple the audio output from one sound card to the mic
input of the other PC, and run them simultaneously.
Thank you
Johan Smit

AFAIK, most operating systems do not support this. Of course, if you
are capable of writing and integrating your own driver software and
patching the OS, anything becomes possible.

Harry C.

 

[ross]

windows 98 supports this just fine as does win 2000
i am currently running 2 cards in one unit at first under win 98 then
upgraded to win 2000 some apps don't allow you to pick which card to use but
most do

"Harry Conover" <hhc314@yahoo.com> wrote in message
news:7ce4e226.0310071017.bcd82b@posting.google.com...

smitjsno@spamlantic.net (Johan Smit) wrote in message
news:<3f80ed8e.2549986@news.saix.net>...
Hi,
Is it at all possible to run two sound cards simultaneously on one PC?
I would like to couple the audio output from one sound card to the mic
input of the other PC, and run them simultaneously.
Thank you
Johan Smit

AFAIK, most operating systems do not support this. Of course, if you
are capable of writing and integrating your own driver software and
patching the OS, anything becomes possible.

Harry C.

 

[Johan Smit]

On Mon, 6 Oct 2003 13:39:59 +0000 (UTC), Ian Stirling
<root@mauve.demon.co.uk> wrote:

Johan Smit <smitjsno@spamlantic.net> wrote:
Hi,
Is it at all possible to run two sound cards simultaneously on one PC?

Yes, depending on software.
I have three in my machine. (one is broken and has been rewired as a
PCI powered amplifier.)

Thanks, that sounds interesting.

What software and sound cards would you recommend?
Regards
Johan Smit

 

[Harry Conover]

"ross" <thebluearcher@yahoo.com> wrote in message news:<vo6gdkpl1j76a0@corp.supernews.com>...

windows 98 supports this just fine as does win 2000
i am currently running 2 cards in one unit at first under win 98 then
upgraded to win 2000 some apps don't allow you to pick which card to use but
most do

Are you sure about that? Windows 98 doesn't support two independent
sound cards for me, so please let me in on your secret.

Then too, how do you select which app talks to which sound card?

Harry C.

 

[ross]

it's not a secret that i know of

ok let's see if i can explain

first I am currently using win 2000 pro but i believe it is the same on
win98
the application must support this winamp does so does some others I don't
know which
in winamp under preferences (sp) you select the device you wish to use
I have wrote a vb program that can play several media files an i can select
which
card to output to and also which speaker (left or right) it plays on
it reqiures directx to do this
my under standing is i can put up to eight(8) soundcards in one pc
much like multi video cards works sorta the same way

also under control panel you can select which card is the default device

I have not tried this but I believe that what you can do is start windows
media with card #1 playing song#1
then change the default device to card #2 and start another player and play
song #2 thru card #2



"Harry Conover" <hhc314@yahoo.com> wrote in message
news:7ce4e226.0310072059.1062003c@posting.google.com...

"ross" <thebluearcher@yahoo.com> wrote in message
news:<vo6gdkpl1j76a0@corp.supernews.com>...
windows 98 supports this just fine as does win 2000
i am currently running 2 cards in one unit at first under win 98 then
upgraded to win 2000 some apps don't allow you to pick which card to use
but
most do

Are you sure about that? Windows 98 doesn't support two independent
sound cards for me, so please let me in on your secret.

Then too, how do you select which app talks to which sound card?

Harry C.

 

[jm]

Is it at all possible to run two sound cards simultaneously on one PC?
I would like to couple the audio output from one sound card to the mic
input of the other PC, and run them simultaneously.

Is there any reason you want two sound cards and not simply
a full-duplex card ?
Since both the input and output of sound cards are buffered,
all your software needs to do is empty the input buffer when it
is filled and fill the output buffer quickly enough with the
processed data.
I wanted to do this too long time ago, when most sound cards were
not full duplex, and had a lot of trouble (that was for real time
audio signal processing/filtering for amateur radio listening),
but I think nowadays most sound card support full duplex operation.
I can send a 10-line program for linux which just reads the buffer
and copies the data to the output buffer (ie no processing).
Implementing a proper FFT and appropriate filters which run fast
enough is another story. The program is based on linux's port of
scope.c, a 10-line program for using your sound card as a slow
oscilloscope.

Jean-Michel

 

[Ian Stirling]

Johan Smit <smitjsno@spamlantic.net> wrote:

On Mon, 6 Oct 2003 13:39:59 +0000 (UTC), Ian Stirling
root@mauve.demon.co.uk> wrote:

Johan Smit <smitjsno@spamlantic.net> wrote:
Hi,
Is it at all possible to run two sound cards simultaneously on one PC?

Yes, depending on software.
I have three in my machine. (one is broken and has been rewired as a
PCI powered amplifier.)

Thanks, that sounds interesting.
What software and sound cards would you recommend?

Linux, and most any supported card.

--
http://inquisitor.i.am/ | mailto:inquisitor@i.am | Ian Stirling.
---------------------------+-------------------------+--------------------------
"Don't count the humans out until the last one is dead and you have
hacked its body to bits and eaten it" -- John Ringo.

 

[Johan Smit]

On Thu, 09 Oct 2003 16:54:37 +0200, jm <friedtj@free.fr> wrote:

Is there any reason you want two sound cards and not simply
a full-duplex card ?
Since both the input and output of sound cards are buffered,
all your software needs to do is empty the input buffer when it
is filled and fill the output buffer quickly enough with the
processed data.
I wanted to do this too long time ago, when most sound cards were
not full duplex, and had a lot of trouble (that was for real time
audio signal processing/filtering for amateur radio listening),
but I think nowadays most sound card support full duplex operation.
I can send a 10-line program for linux which just reads the buffer
and copies the data to the output buffer (ie no processing).
Implementing a proper FFT and appropriate filters which run fast
enough is another story. The program is based on linux's port of
scope.c, a 10-line program for using your sound card as a slow
oscilloscope.

Hi Jean-Michel,

I was not aware of the existence of full-duplex sound cards.
I will certainly look into this. Thank you
Regards
Johan Smit

 

[ross]

the reason I use multiple soundcards is for this
it gives me more inputs then i can get else where
and allows me to be able to mix live audio like at
a radio station

see with 4 soundcards i get
4 line level inputs
4 cd level inputs
4 mic inputs
I tie the output from sound card 1 to aux input sound card 2
then the output of sound card 2 to aux input sound card 3
ect... ect...

then I have a custom vb program with directx controlling all the inputs
and at the same time a set of modified usb joysticks set up in a homemade
mixing console

so it's a lot like the boards I've used at radio stations



"Johan Smit" <smitjsno@spamlantic.net> wrote in message
news:3f8cc280.415166@news.saix.net...

On Thu, 09 Oct 2003 16:54:37 +0200, jm <friedtj@free.fr> wrote:

Is there any reason you want two sound cards and not simply
a full-duplex card ?
Since both the input and output of sound cards are buffered,
all your software needs to do is empty the input buffer when it
is filled and fill the output buffer quickly enough with the
processed data.
I wanted to do this too long time ago, when most sound cards were
not full duplex, and had a lot of trouble (that was for real time
audio signal processing/filtering for amateur radio listening),
but I think nowadays most sound card support full duplex operation.
I can send a 10-line program for linux which just reads the buffer
and copies the data to the output buffer (ie no processing).
Implementing a proper FFT and appropriate filters which run fast
enough is another story. The program is based on linux's port of
scope.c, a 10-line program for using your sound card as a slow
oscilloscope.

Hi Jean-Michel,
I was not aware of the existence of full-duplex sound cards.
I will certainly look into this. Thank you
Regards
Johan Smit