Hello, I wanted to report some results using the new caiaq driver for Native Instruments USB soundcards. snd-usb-caiaq So far I have tried the Rig Control 2, and the Kore Controller. I can get clear playback of a wav file through aplay and XMMS with the soundcard assigned as card 0, or hw:0 However accessing the headphone output on the kore controller has not been possible for me yet. Concerning Jack, I have only been able to connect to jackd using a buffer size of 1024. I have tried three sample rates: 44.1, 48 and 96k; these are fine but only with 1024 frames or greater. Depending on various other settings I may set in qjackcontrol, the cpu usage of jackd varies widely. For example, if I select anything other than 2 ins and outs, its either 90% cpu, or the server will not connect. With the Kore Controller, if I select what should be the proper number of channels; 2 ins and 6 outs, no connection. After some time experimenting like this, occassionally qjackcontrol will blink out of existence entirely, which I confirm with a ps -A in the terminal. Or, the entire OS freezes without override and a system restart is required. Also when jack is connected at 1024 frames, there are about 10 xruns per second. I have not had much success accessing the device with software that supports alsa directly. Either an error is reported, or just a message about not connecting. I was only able to get playback through XMMS with the NI soundcard defined as card 0, default (from modprobe.d/alsa-base). Otherwise, as a higher card like card 3; configuring the alsa driver within XMMS to select the Kore Controller never works, though the device name is presented in the expected place within XMMS. When I was able to get jack to connect, I ran a wined host that could play back the same wavefile through the NI soundcard. But after some window activity, the sound playback breaks up and stutters and then stays that way - and xruns out the kazoo. Concerning my hardware, I have tried 2 pci USB 2.0 cards; one with VIA and the other an NEC chipset. I have tried 2 cables, and different ports with the same results. Concerning my software, I am using Ubuntu Studio, ALSA 1.0.14 built with caiaq support. In this same environment I am able to use the echo audio layla20 and evolution x-session without any malfunctions for hours and hours at a time, with wine and wineasio. With these, jack and OS has never crashed. Has anyone else used this driver yet or have different results? Is there anything I might try to improve performance with buffer size and stability? Thanks for any help, Jonathan Adams Leonard ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
