[Alsa-user] Re: [Alsa-devel] more RME 9652 Hammerfall problems

[Paul D. <pb...@op...>]

>You want the ctl entry so that ardour will work properly.  When you use
>aplay or any other application, use dsp1 as your alsa device, and when you
>use ardour, use rme9652, because ardour wants the raw access.

3 quick notes:

1) i prefer:

   pcm.dsp1 {
     type plughw
     card 1
   }

   as the way to define the "flexible" access to card 1. the "plughw"
   type is a little more efficient (says abramo) than "plug" when the
   slave is a "hw" device.

2) ardour no longer has anything to do with ALSA or audio h/w - all
   access is via jack ...

3) jack doesn't require raw access, it will work with more or less any
   PCM device that can do either 32 or 16 bit samples for both capture
   and playback streams, and also supports mmap access. there is a
   limitation at this time that it can't support more than 32
   channels, which will need to be fixed sometime soon. there is also
   a limitation that it requires the ability to set the period count
   to 2, which will also be fixed sometime soon.

--p