Hi
After having problems with a PrePen USB-interface (https://forum.audacityteam.org/t/usb-prepen/39936/1), I tried to activate a “m-audio fast track pro” interface via Jack. In my setting (Ubuntu Studio 15.04 on a Lenovo Yoga 2) Audacity (2.1.1.) runs more stable in normal editing using Jack as soundsserver (Alsa freezes frequently). I nevertheless tried recording with the m-audio interface using Alsa, but it froze so I started to set up Jack (as in the picture below). I set Audio Duplex but I just want to use the Usb interface as input, where the m-audio interface is listed in three ways:
hw:Pro FastTrack Pro (hw:1)
hw:Pro,0 USB Audio (hw:1,0)
hw:Pro,1 USB Audio #1 (hw:1,1)
I started audacity via shell to get all error messages:
mute@audio:~$ audacity
(process:3052): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::sm-connect after class was initialised
(process:3052): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::show-crash-dialog after class was initialised
(process:3052): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::display after class was initialised
(process:3052): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::default-icon after class was initialised
ALSA lib pcm_dsnoop.c:618:(snd_pcm_dsnoop_open) unable to open slave
ALSA lib pcm_dmix.c:1022:(snd_pcm_dmix_open) unable to open slave
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
bt_audio_service_open: connect() failed: Verbindungsaufbau abgelehnt (111)
bt_audio_service_open: connect() failed: Verbindungsaufbau abgelehnt (111)
bt_audio_service_open: connect() failed: Verbindungsaufbau abgelehnt (111)
bt_audio_service_open: connect() failed: Verbindungsaufbau abgelehnt (111)
ALSA lib pcm_dmix.c:1022:(snd_pcm_dmix_open) unable to open slave
Expression ‘stream->playback.pcm’ failed in ‘src/hostapi/alsa/pa_linux_alsa.c’, line: 4611
Expression ‘stream->playback.pcm’ failed in ‘src/hostapi/alsa/pa_linux_alsa.c’, line: 4611
Expression ‘stream->playback.pcm’ failed in ‘src/hostapi/alsa/pa_linux_alsa.c’, line: 4611
Expression ‘stream->playback.pcm’ failed in ‘src/hostapi/alsa/pa_linux_alsa.c’, line: 4611
When i hit the record button, i get this (all three input-options have the same outcome, switching between mono and stereo has also no effect) :
The program ‘Audacity’ received an X Window System error.
This probably reflects a bug in the program.
The error was ‘BadPixmap (invalid Pixmap parameter)’.
(Details: serial 118053 error_code 4 request_code 54 minor_code 0)
(Note to programmers: normally, X errors are reported asynchronously;
that is, you will receive the error a while after causing it.
To debug your program, run it with the --sync command line
option to change this behavior. You can then get a meaningful
backtrace from your debugger if you break on the gdk_x_error() function.)
arecor -l gives me this:
mute@audio:~$ arecord -l
**** Liste der Hardware-Geräte (CAPTURE) ****
Karte 1: Pro [FastTrack Pro], Gerät 0: USB Audio [USB Audio]
Sub-Geräte: 1/1
Sub-Gerät #0: subdevice #0
Karte 1: Pro [FastTrack Pro], Gerät 1: USB Audio [USB Audio #1]
Sub-Geräte: 0/1
Sub-Gerät #0: subdevice #0
Karte 2: PCH [HDA Intel PCH], Gerät 0: CX20756 Analog [CX20756 Analog]
Sub-Geräte: 1/1
Sub-Gerät #0: subdevice #0
When i disconnect the interface, I get this:
mute@audio:~$ arecord -l
**** Liste der Hardware-Geräte (CAPTURE) ****
Karte 2: PCH [HDA Intel PCH], Gerät 0: CX20756 Analog [CX20756 Analog]
Sub-Geräte: 1/1
Sub-Gerät #0: subdevice #0
If anyone has an advice, I’d highly appreciate it.