Date: Tue, 21 Sep 2004 10:11:23 +0300 From: Dalius.Dobravolskas@mif.vu.lt To: freebsd-hardware@freebsd.org Subject: sound duplex Message-ID: <1095750683.414fd41bce51f@webmail.vu.lt>
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Hello, I have some problems with sound full duplex. The same problem was in FreeBSD 5.2 and in 5.3-BETA4. > cat /dev/dsp > cat /dev/dsp there is silence then it plays recorded message for 1 second and prints error message: pcm0:record:0: record interrupt timeout, channel dead If I turn on vchans: > cat /dev/dsp > cat /dev/dsp plays for 1 second input from microphone almost at the same moment as recorded and prints the same error message: pcm0:record:0: record interrupt timeout, channel dead If I play something in background: cat filename > /dev/dsp and run while system is playing: cat /dev/dsp systems hangs - does not react to any events I tried various variants with vchans - result the same. Anybody could help me? I could also do some programming here if anybody could give me initial information. Some information: > cat /dev/sndstat FreeBSD Audio Driver (newpcm) Installed devices: pcm0: <ESS Solo-1 (unknown vendor)> at io 0x1080,0x10e0,0x10d0 irq 7 (1p/1r/0v channels duplex default) > sysctl hw.snd hw.snd.targetirqrate: 32 hw.snd.report_soft_formats: 1 hw.snd.verbose: 1 hw.snd.unit: 0 hw.snd.maxautovchans: 0 hw.snd.pcm0.buffersize: 16384 > uname -a FreeBSD lapas.mine.nu 5.3-BETA4 FreeBSD 5.3-BETA4 #3: Wed Sep 15 01:07:00 UTC 2004 root@lapas.mine.nu:/usr/src/sys/i386/compile/AKIRA i386 Dalius
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