Hi, > I am running OpenBSD 4.1 with a SoundBlaster PCI 128 audio card. > This card uses the "eap" driver.
I am not sure if this card supports full duplex. Check audioctl properties for the term "full_duplex". You will need this feature. > Does anyone have a recommended way and/or application that > could directly play out the raw audio that is coming into card? > Is this possible? I tried some time ago with audacity, but it didn't work. You can code this for yourself directly in C, it's not difficult, ~100 lines of code max. Fortunately, I did this in the last weeks for an audio measurement application. Ehm, anyone concerned about a little advertise for a BSD-like-licensed app? No? You can get it here: http://esweep.berlios.de Sorry for the german-only (and bad, but I'm working on it) manual, that was the intended audience. It is a module for Tcl and works very well. I developed an spectrum analyzer within a few hours (well, it's not real time, because the module does not contain any displaying options - until now). Just compile it, and copy the resulting library wherever you want. Then, you need this Tcl-code: #!/usr/local/bin/tclsh8.4 # load module load <PATH_TO_LIBRARY>/esweep.so esweep # samplerate set samplerate 44100 # buffer size set size 16384 # prepare in-/ouput buffers set au_in [esweep_create "audio" $samplerate $size] set au_out [esweep_create "audio" $samplerate $size] # open soundcard set au_handle [esweep_audioOpen "/dev/sound" $samplerate] # forever while {1} { # record and play esweep_audioMeasure $au_in $au_out $au_handle # switch buffers set tmp $au_in set au_in $au_out set au_out $tmp } That's all. Twelve lines of raw code (comments end empty lines skipped). Enjoy. Bye, Jochen P.S.: maybe anyone likes to make a port of this? I don't think I can do this in an acceptable time.
