10-14-2021, 07:50 AM | #1 |
Human being with feelings
Join Date: Oct 2021
Posts: 4
|
Native Reaper, Audio Device Axe-Fx 3 via USB, ASLA Error
Hi folks,
- native Reaper on linux mint 20.2 Cinnamon - Audio interface: Axe-Fx 3 via USB - setting see attached screenshots Message: There was an error opening the audio hardware: ALSA: error finalizing input device parameters Any ideas? Thx Jörg |
10-14-2021, 12:12 PM | #2 | |
Human being with feelings
Join Date: Nov 2011
Posts: 971
|
Quote:
A 16-core, 500 MHz microcontroller provides 16 channels of flawless USB audio (8 in, 8 out) allowing the Axe-Fx III to be the center of your music workstation. The audiophile-grade signal path components and converters provide better audio performance than most dedicated USB audio interfaces. With 8×8 channels you can record multiple tracks of processed audio, DI signals, etc., while monitoring backing tracks, auditioning stereo reamps in real-time, and more. A USB audio sound source can even be placed on the grid with its own dedicated block. Windows 7/8/10 drivers are included, and the Axe-Fx III requires no driver on a Mac running 10.7.4 or newer. This information seems to imply that it may very well be class compliant. However, I can't be sure. Further searching yields the following: https://wiki.fractalaudio.com/wiki/i...itle=USB#Linux Stating: The Axe-Fx II and Axe-Fx III can work as an audio and MIDI interface just as they do on Windows or OS X, although Linux is not supported officially. https://forum.fractalaudio.com/threa.../#post-1303324 And: Axe-Fx III The Axe-Fx III, unlike the Axe-Fx II, has the firmware built in - so there are no firmware binary blobs that have to be uploaded. Kernel patches The required kernel patches have been merged in Linux v4.18. Ubuntu 18.04.2 (or derivative) has upgraded to kernel version v4.18 so the Axe-Fx III should work out of the box. What follows are descriptions of the required patches previous to v.18: Due to the USB audio configuration used - asynchronous output with implicit feedback endpoints, a quirk needs to be introduced. The Axe-Fx III USB port enumerates immediately after being turned on - but does not respond to commands until it fully boots up, which needs a workaround in the USB audio module Threads about using Axe-Fx III with Linux: USB issue when powering on unit Linux: USB Overflows https://forum.fractalaudio.com/threa...n-unit.137649/ https://forum.fractalaudio.com/threa...3#post-1632462 |
|
10-14-2021, 12:14 PM | #3 | |
Human being with feelings
Join Date: Nov 2011
Posts: 971
|
Quote:
It seems the Axe-Fx 3 errors out when trying to respond to USB control messages while its booting up, for example to query the current clock selector value (UAC2_CS_CUR) In Linux, I'm seeing a protocol error messages returned by the driver, during the time the Axe-FX 3 boots up. If I instead disconnect the USB cable, boot up the Axe-Fx 3 then connect the USB cable, it responds to USB messages just fine. |
|
10-14-2021, 12:18 PM | #4 |
Human being with feelings
Join Date: Nov 2011
Posts: 971
|
In other words, try to:
Disconnect the USB cable, boot up the Axe-Fx 3 then connect the USB cable, it then should respond to USB messages just fine. I hope this helps!! P.S. You also need a kernel newer than 4.18. |
10-15-2021, 08:02 AM | #5 |
Human being with feelings
Join Date: Oct 2021
Posts: 4
|
Native Reaper, Audio Device Axe-Fx 3 via USB, ASLA Error
Dear audiojunkie,
Thanks for the detailed answer. Connecting a booted AXE unfortunately does not work for me or I missed something. I tried the following order: - Booting up the AXE - Connect to USB - Open Reaper -> Same error messages Connecting before opening Reaper understandably leads to the error message: ALSA error opening input device. |
10-15-2021, 08:33 AM | #6 |
Human being with feelings
Join Date: Mar 2008
Location: Planet Earth
Posts: 9,055
|
It might be that some other process is latching onto it so it looks unavailable to REAPER. Somebody here had an audio device they couldn't get REAPER to connect with, and it turned out some part of Pulse was grabbing it IIRC. You might go into the Pulse mixer and on the configuration tab, make sure the Axe-FX is set to OFF.
|
10-15-2021, 10:16 AM | #7 |
Human being with feelings
Join Date: Oct 2021
Posts: 4
|
[SOLVED] Native Reaper, Audio Device Axe-Fx 3 via USB, ASLA Error
Glennbo, you solved it. Simply followed your advice and it works. Many thanks!
|
10-15-2021, 10:49 AM | #8 |
Human being with feelings
Join Date: Mar 2008
Location: Planet Earth
Posts: 9,055
|
Veddy cool! I looked up that unit you are using and it looks like it would be pretty cool to plug a couple guitars and bass in at the same time for recording.
|
10-18-2021, 01:54 AM | #9 |
Human being with feelings
Join Date: Oct 2021
Posts: 4
|
Yes, the AXE-FX 3 is pretty cool once it's connected :-)
Thanks again to all for your help. |
Thread Tools | |
Display Modes | |
|
|