Clemens wrote:

You should not write an .asoundrc. You should replace "hw" with "plughw" in the device name.

Somewhat different messages, but still aborts immediately. (There is a relay click sound from Orpheus, as it always does before playing music, so it is getting slightly better..)

% ls -l .asound* -rw-rw-r-- 1 user1 user1 65 Apr 23 21:48 .asoundrc-nogo

% grep asound /usr/share/alsa/alsa.conf "/etc/asound.conf" "~/.asoundrc"

% sudo ls -l /etc/asound.conf ls: cannot access /etc/asound.conf: No such file or directory

% aplay -D plughw:2,0 test.wav Playing WAVE 'test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo aplay: set_params:1297: 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: (46439 46440) PERIOD_SIZE: 2048 PERIOD_BYTES: 8192 PERIODS: 4 BUFFER_TIME: (185759 185760) BUFFER_SIZE: 8192 BUFFER_BYTES: 32768 TICK_TIME: 0

% aplay -D plughw:2 test.wav Playing WAVE 'test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo aplay: set_params:1297: 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: (46439 46440) PERIOD_SIZE: 2048 PERIOD_BYTES: 8192 PERIODS: 4 BUFFER_TIME: (185759 185760) BUFFER_SIZE: 8192 BUFFER_BYTES: 32768 TICK_TIME: 0

% aplay -D default:2,0 test.wav ALSA lib conf.c:4705:(snd_config_expand) Unknown parameters 2,0 ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM default:2,0 aplay: main:722: audio open error: Invalid argument

% aplay -D default:2 test.wav ALSA lib conf.c:4705:(snd_config_expand) Unknown parameters 2 ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM default:2 aplay: main:722: audio open error: Invalid argument

Regards, Mike Ood