need help for sound recording and play back in linux redhat?

nick27 · 02-15-2004, 09:12 AM

i need help in writing a program that can record sound and playback the sound.
can any1 help me out. im using linux redhat 9.0 for this application.
im new in this OS, so can u also provide the steps in doing this.
thx

Berng · 02-17-2004, 06:24 AM

in any shell:
cat /dev/audio > music_file_in_raw_format.au
cat music_file_in_raw_format.au > /dev/audio
Should work

BestRegards,
Oleg.

nick27 · 02-17-2004, 10:35 AM

what do u mean by cat /dev/audio > music_file_in_raw_format.au
cat music_file_in_raw_format.au > /dev/audio

i do not know what is this, can u help me out?

thx

jinksys · 02-17-2004, 12:35 PM

I suggest heading over to opensound.com, click on programming and read the OSS programmers guide. That is how i learned to design audio programs.

Berng · 02-17-2004, 09:02 PM

nick27,
It means, that you could just open /dev/audio file for reading and read it, when you want to record,
and open /dev/audio file for writing, when you want to play.
Of course, you could open this file at the same time for reading and writing, as a different streams,
and you could record /paly simultaneously....
Al the data is the row .au format (byte by byte wave form i think, but not sure).
Looks like it is the simpliest method...
Best regards,
Oleg.