[Jackaudio] Using jack with a Boss RC-505

[Thomas Andrews]

Thanks Jonathan,

On 10/5/21 2:06 AM, Jonathan Woithe wrote:
> Hi Thomas
>
> On Sun, Oct 03, 2021 at 04:39:05PM +0200, Thomas Andrews wrote:
>> I recently acquired a Boss RC-505 which is giving me trouble getting it's
>> USB audio working. (By contrast I have a Scarlett 2i2 external USB sound
>> card which works 100%)
>> :
>> FYI when I set up qjackctl to use the RC-505 instead of the Scarlett, I see
>> that jack is set up as follows:
>>
>>      /usr/bin/jackd -dalsa -r48000 -p256 -n2 -Xseq -D -Chw:RC505 -Phw:PCH
> I have no experience with the RC-505 but I wonder whether it supports a
> sample rate of 48 kHz.  If it can't then the above jackd command will fail
> because the RC-505 will reject the request to operate at 48 kHz.
>
> A very quick scan of the internet didn't turn up detailed information about
> the RC-505.  However, in the user manual I note on page 26 only 44.1 kHz WAV
> files are supported.  It is therefore possible that the unit operates at a
> fixed sampling rate of 44.1 kHz and therefore it might be worth trying
> "-r44100" in your jackd command to see if that works any better

Unfortunately changing the sample rate as you suggested didn't work. Any 
other ideas?

Many thanks,
Thomas