Re: [Discuss-gnuradio] Problem with 192KHz sampling rate on alsa source

[ikjtel]

Hello Marcus

Have you tried using the native 'arecord' command ?

This may help isolate whether it's in GR's audio source or what...

Also look within 'alsamixer' for any odd little switches etc

Also, there's a possibility that 192K might only be supported with restrictions 
(mono only or s-INT16 only or something)...

Additionally, try the 96K rate to see if at least it will go that high.

I've also seen other weird things with sound cards such as a 90 degree phase 
delay between the two channels - with the same exact signal connected to both L 
and R inputs.

> Do I have to do anything special to pulseaudio configuration
> to get support for the 192KHz rate?

Not experienced with pulseaudio, but it appears to be a userspace tool - as is 
GR - suggest that you initially bypass/disable it entirely to prove/disprove 
whether 192k works natively (or not) first......

Best Regards

Max