[LAU] ADAT blackface and RME DIGI 32/8

[Johan]

Paul Davis wrote:
>
> you need to set the clock sync up. one of the two devices has to be the
> master, one has to be a slave. there are GUIs to do this for later RME
> devices, but for the DIGI 32/8, you are stuck (i think) with editing
> text files or using the low level amixer command. i don't know what
> mixer element (switch) needs toggling. i would suggest using the RME as
> the master and the Alesis as the slave, but it doesn't matter much
> either way.
>
>   
I can't understand the way amixer behaves. The ADAT works only with
48000 but it  card appears to refuse that sample rate. Or am I wrong?

Here is the console output:

projektet at arvo:~$ amixer
Simple mixer control 'Input Connector',0
  Capabilities: enum
  Items: 'Optical' 'Coaxial' 'Internal'
  Item0: 'Optical'
Simple mixer control 'Loopback Input',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'Sample Clock Source',0
  Capabilities: enum
  Items: 'AutoSync' 'Internal 32.0kHz' 'Internal 44.1kHz' 'Internal 48.0kHz'
  Item0: 'AutoSync'

projektet at arvo:~$ amixer set 'Sample Clock Source' 'Internal 32.0kHz'
Simple mixer control 'Sample Clock Source',0
  Capabilities: enum
  Items: 'AutoSync' 'Internal 32.0kHz' 'Internal 44.1kHz' 'Internal 48.0kHz'
  Item0: 'Internal 32.0kHz'

projektet at arvo:~$ amixer set 'Sample Clock Source' 'Internal 44.1kHz'
Simple mixer control 'Sample Clock Source',0
  Capabilities: enum
  Items: 'AutoSync' 'Internal 32.0kHz' 'Internal 44.1kHz' 'Internal 48.0kHz'
  Item0: 'Internal 44.1kHz'

projektet at arvo:~$ amixer set 'Sample Clock Source' 'Internal 48.0kHz'
Simple mixer control 'Sample Clock Source',0
  Capabilities: enum
  Items: 'AutoSync' 'Internal 32.0kHz' 'Internal 44.1kHz' 'Internal 48.0kHz'
  Item0: 'AutoSync'