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| cannot get sound working http://forums.linhes.org/viewtopic.php?f=1&t=4032 |
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| Author: | rkleemann [ Fri Apr 01, 2005 12:25 am ] |
| Post subject: | cannot get sound working |
Hi all, I've just installed KnoppMyth. However I cannot get audio from the WinTV card output by mythfrontend. If I connect a cable from the tv card to the sound card, then I get straight audio from the tuner. But I need to be able to get the audio setup properly. Can someone help out? Here's my current configuration: 0000:00:0f.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11) 0000:00:0f.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11) 0000:00:12.0 Multimedia audio controller: Ensoniq ES1371 [AudioPCI-97] (rev 08) 0000:01:00.0 VGA compatible controller: nVidia Corporation NV18 [GeForce4 MX 440 AGP 8x] (rev a2) I have the following modules for sound: # lsmod|grep bt snd_bt87x 11976 1 snd_pcm 81156 3 snd_pcm_oss,snd_bt87x,snd_ens1371 snd_page_alloc 9352 2 snd_bt87x,snd_pcm snd 47332 13 snd_pcm_oss,snd_bt87x,snd_mixer_oss,snd_ens1371,snd_rawmidi,snd_seq_device,snd_pcm,snd_timer,snd_ac97_codec bttv 174316 2 video_buf 18692 1 bttv firmware_class 9472 1 bttv i2c_algo_bit 10632 1 bttv v4l2_common 6912 1 bttv btcx_risc 5896 1 bttv i2c_core 20736 4 tuner,tvaudio,bttv,i2c_algo_bit videodev 9344 3 bttv I've tried using both /dev/dsp0 and /dev/dsp1 in mythbackend, with different results, neither of which have produced sound. If I use /dev/dsp1 (which I thought to be correct given I'm using snd_bt87x) I'll see this in mythbackend: 2005-03-31 22:10:47.876 NVR: Only read -1 bytes of 4096 bytes from '/dev/dsp1 read audio: Input/output error If I use /dev/dsp0, then what I get is a lot of static on the sound, starting at a low volume and increasing volume. I'm also thinking that /dev/dsp0 is the same as the OUTPUT device, not the input, correct? Sound in general works fine, like if I play something with xmms, or if I connect the audio out from the tv card into the audio in for the sound card. Any help is greatly appreciated! Thanks Ricardo |
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