[Alsa-user] Roland AIRA TR-8 USB audio almost works with ALSA . . .

[David W. <reg...@d-...>]

Hi

I have Roland AIRA TR-8 which seems very close to working with the ALSA
driver . . . I'm guessing the driver may need some tweaking (an entry in
usbquirks.h?).

It is a drum machine with a sequencer and drum synthesiser. In addition
to standard analogue audio out and MIDI out ports, it has a USB port for
MIDI in/out and digital audio (mostly for input).

It has 4 audio outputs and 14 audio inputs, the inputs are for sending
each drum sound in for DSP on a separate channel. Its fixed to 96 kHz.

The Roland AIRA are new devices (this year) and lots of fun so I'm sure
they're worth a go for other users if there's a dev with enough time to
spare :-)

The recording is the most useful feature to get working (drum sounds
into the computer).

Thanks! Info below,

David W.


sh alsa-info.sh:
http://www.alsa-project.org/db/?f=1bd82a79fce0631dacb7dc057057f72c9e6909d0


The kernel says:

kernel: usb 2-1.5.4.3: new high-speed USB device number 8 using ehci-pci
kernel: snd-usb-audio: probe of 2-1.5.4.3:1.0 failed with error -5


lsusb says:

Bus 003 Device 004: ID 0582:017c Roland Corp.


It appears in /dev/snd:

/dev/snd/by-id/usb-Roland_TR-8-01 -> ../controlC1


alsacap from http://www.volkerschatz.com/noise/ says:

./alsacap -d hw:1,0
*** Exploring configuration space of device 'hw:1,0' for playback ***
4 channels
Sampling rate 96000 Hz
Sample formats: S32_LE
Significant bits: 32



arecord -D hw:1,0 -f S32_LE  -c1 -r96000 -t wav test.wav

Recording WAVE 'test.wav' : Signed 32 bit Little Endian, Rate 96000 Hz, Mono
arecord: set_params:1239: Channels count non available




arecord -L
...
sysdefault:CARD=TR8
    TR-8, USB Audio
    Default Audio Device
front:CARD=TR8,DEV=0
    TR-8, USB Audio
    Front speakers
surround21:CARD=TR8,DEV=0
    TR-8, USB Audio
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=TR8,DEV=0
    TR-8, USB Audio
    4.0 Surround output to Front and Rear speakers
surround41:CARD=TR8,DEV=0
    TR-8, USB Audio
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=TR8,DEV=0
    TR-8, USB Audio
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=TR8,DEV=0
    TR-8, USB Audio
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=TR8,DEV=0
    TR-8, USB Audio
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=TR8,DEV=0
    TR-8, USB Audio
    IEC958 (S/PDIF) Digital Audio Output