Sound on all apps is slow when played through a USB soundcard

I have been using an external DAC (USB) to play music through my amp. For over a year it has worked brilliantly, then a week ago it has started playing everything slowly (about 10% slow) it even plays live radio slowly???? Same regardless whether Rhythmbox, Firefox or Chrome. I run a Lenovo T420 and Ubuntu 20.04. Any ideas? I have looked through dozens of threads and they at best half address my problem - download Pulse Audio (hasn't worked) etc

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1 Answer

Apparently there was an update during March that (for some magic reason) changed the default-sample-rate of the sound card (I was facing the same issue).

I had tried whatever app/solution I found online but apparently the solutions is:

a) open the configuration of pulse by running:

sudo vi /etc/pulse/daemon.conf

b) find the line concerning default-sample-rate. It should start with a ; meaning that its commented out. Remove the ; and adjust the sample rate to your needs. For me 48000 did the trick:

default-sample-rate = 48000

c) Restart pulseaudio by executing:

pulseaudio -k

That should make everything back to normal

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