[linux-audio-user] alsa +laptop +performance

[Emiliano Grilli]

> Hi, I am looking to install alsa on a laptop along with something
> for more reasonable sound such as a Roland ua-20.
> I was wondering if anyone had successfully done something similar
> or knew of any information resources?
  
  Don't know about the ua-20, but I use the SC-D70 (for which audio
  support was recently added thanks to Clemens Ladisch) and the griffin
  imic, both using the snd-usb-audio module.

  I'm not yet able to run jack with them (maybe it's my incompetence),
  but apart from that, playback and recording works perfectly with imic;
  the SC-D70 driver that Clemens wrote uses a sample format different
  from the one that many applications (especially oss apps) expect:
  S24_3LE, instead of the more common S16_LE, so you have to specify it
  to arecord on the command line (I'm sure there is a way in .asoundrc
  to convert the sample format, but I don't know how - maybe a slave?).

  Speaking of MIDI, it works perfectly on the SC-D70.

  I think the best thing you can do is try the device before buying
  it (if you can), or find someone that has one.
  
  HTH
-- 
  .---------------------.
  | Emiliano Grilli     |
  | emillo at libero.it    |
  | Linux user #209089  |
  '---------------------'