On 2/15/24 16:10, Brandon Hale wrote:
Hello all,

Do any pipewire users here know of a way to adjust the buffer for pipewire for jack applications? Ideally, I'm looking for something that is a gui app or client command that can be adjusted on the fly, or before loading an application. I want to try to reduce latency for a performance and pipewire has been working great otherwise.

My system is the latest universalblue fedora sericea and I am using a pro-audio interface.

Brandon Hale



I use the comprehensive "coppwr". Perhaps overkill here but fun to look at.

https://github.com/dimtpap/coppwr


To cut to the chase, once it is up and running:

Click Tools > Metadata Editor.

Edit the boxes "clock.quantum" and "clock.rate", which are the desired buffer size and sample rate.

Be sure to click the corresponding "set" button when done editing a box.


That sets global values.

I think you can set them on a per client basis too.


It appears to adjust on the fly.

I am not sure whether that means a client sticks with the size and rate when it was started until it stops, 

 or if jack clients are somehow notified of the changes and the size and rate really do change for that client.

PW is new to me, jack is not.


Tim.

MusE Sequencer project.