Not quite sure if this will help but I set up at 7350 to do USB Audio and OSS
which I think calls into ALSA. I needed the following drivers to get
everything going:
usbcore.ko
ohci-hcd.ko
soundcore.ko
snd.ko
snd-hwdep.ko
snd-page-alloc.ko
snd-timer.ko
snd-pcm.ko
snd-seq-device.ko
snd-seq.ko
snd-rawmidi.ko
snd-usb-lib.ko
snd-usb-audio.ko
snd-mixer-oss.ko
snd-pcm-oss.ko
Even though I'm not using Midi or the sequencer, I think there are some
dependencies in there.
--- In "PAUL A." <> wrote:
>
> Hello!
>
> I'm having grief getting ALSA sound going on the TS-7500.
>
> I've compiled ALSA sound and the snd-usb-audio driver as a module and
> installed it onto my board.
>
> I then did apt-get to install alsa-utils.
>
> When I run 'aplay -l', it sees my external board:
>
> **** List of PLAYBACK Hardware Devices ****
> card 0: External [SB Live! 24-bit External], device 0: USB Audio [USB Audio]
> Subdevices: 1/1
> Subdevice #0: subdevice #0
>
> When I run 'aplay -L', it sees the devices on the board:
>
> default:CARD=External
> SB Live! 24-bit External, USB Audio
> Default Audio Device
> front:CARD=External,DEV=0
> SB Live! 24-bit External, USB Audio
> Front speakers
> surround40:CARD=External,DEV=0
> SB Live! 24-bit External, USB Audio
> 4.0 Surround output to Front and Rear speakers
> surround41:CARD=External,DEV=0
> SB Live! 24-bit External, USB Audio
> 4.1 Surround output to Front, Rear and Subwoofer speakers
> surround50:CARD=External,DEV=0
> SB Live! 24-bit External, USB Audio
> 5.0 Surround output to Front, Center and Rear speakers
> surround51:CARD=External,DEV=0
> SB Live! 24-bit External, USB Audio
> 5.1 Surround output to Front, Center, Rear and Subwoofer speakers
> surround71:CARD=External,DEV=0
> SB Live! 24-bit External, USB Audio
> 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
> iec958:CARD=External,DEV=0
> SB Live! 24-bit External, USB Audio
> IEC958 (S/PDIF) Digital Audio Output
> null
> Discard all samples (playback) or generate zero samples (capture)
>
>
> If I try 'aplay -D External', I get:
>
> ALSA lib pcm.c:2144:(snd_pcm_open_noupdate) Unknown PCM External
> aplay: main:564: audio open error: No such file or directory
>
>
> On the other hand, if I try 'aplay -D default', I get
>
> ALSA lib pcm_direct.c:975:(snd1_pcm_direct_initialize_slave) unable to
> install hw params
> ALSA lib pcm_dmix.c:1008:(snd_pcm_dmix_open) unable to initialize slave
> aplay: main:564: audio open error: Broken pipe
>
>
> If I try 'aplay -D hw:0,0', it hangs, as if it was trying to play its 8000 HZ
> test tone, but no sound comes out.
>
> I get identical results if I try with 'aplay -D plughw:0,0'.
>
> If I try with 'aplay -D hw:0,0 -t wav chiquitita.wav', I get no audio output
> and the following is printed:
>
> Playing WAVE 'chiquitita.wav' : Signed 16 bit Little Endian, Rate 44100 Hz,
> Stereo
> aplay: set_params:979: Unable to install hw params:
> ACCESS: RW_INTERLEAVED
> FORMAT: S16_LE
> SUBFORMAT: STD
> SAMPLE_BITS: 16
> FRAME_BITS: 32
> CHANNELS: 2
> RATE: 44100
> PERIOD_TIME: (125011 125012)
> PERIOD_SIZE: 5513
> PERIOD_BYTES: 22052
> PERIODS: (3 4)
> BUFFER_TIME: 500000
> BUFFER_SIZE: 22050
> BUFFER_BYTES: 88200
> TICK_TIME: 10000
>
> I get the same if I try 'aplay -D plughw:0,0 -t wav chiquitita.wav'.
>
> By no means am I any kind of ALSA guru. At this point, I'm not sure if
> there's something wrong with the way the libraries, drivers, and utilities
> have been installed, with the way I'm invoking them, or what.
>
> At this point, I would like to know why is it 'unable to install hw params'?
>
> Could it have something to do with the specific audio dongle (I've tried two
> different ones, at this point, with similar results for both).
>
> Any help would be greatly appreciated.
>
> All the best!
>
> Paul
>
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