Hello!

I hope this is the right place to ask this and not too specific, but nothing I have read here and elsewhere on the internet could help me solve my problem so far.

I am running PD vanilla on a laptop with Windows 10 and want to use it for live performances in the future. As an audio interface I am using a small Peavey USB mixer (PV6 USB). It is a class compliant device and I am already using it with ASIO4ALL and Reaper for quite some time without any problems, but I am not getting it to work with Pure Data the way I want to.

I am using the same sample rate and buffer size settings, but I do not get any sound - only cracks and an immediate red exclamation mark from ASIO4ALL in the control panel.
The weird thing is that ASIO, Reaper and my mixer are working just fine in combination, as well as MMIO, Pure Data and the mixer (and ASIO, Pure Data and the built-in mic from my laptop also work together) . Every possible combination works, but not the one I want to use...

Does anyone have any idea what else I could try besides getting a different interface? Or is there any other option for stabel low latency audio on Windows besides ASIO4ALL? (I have also tried JACK2 but this did not help because I was still using ASIO4ALL and only routing it via JACK)

Thanks!

@leonS Yes. Those sounds don't sound like digital errors...... more analog..... like the sound of typing on the keyboard or clicking the mousepad.
I am probably wrong though.
You didn't have the "input monitor gain" turned up in the test tone window?

I thought there was something wrong with your Audiosettings window...... but OOps.... the callback button has been removed in 0.51.3...... hmmm.

Definitely set the channel counts higher or you might need to deselect the on-board soundcard in the Asio4All control panel so as to have access to your mixer (I say definitely.... but it depends on the order in which windows reported the devices to Asio4All).
The channel count doesn't seem to be a problem at the moment though.... but will be later when you want to use both devices.

You are going to have to play with all the controls on the right hand side of the Asio4All control panel I think..... and maybe close and reopen Pd after each change to be sure that they are not ignored.

You can hover the mouse over the blue symbols on the left hand side of the Asio4All window to see the actual status of each pin..... which might give some clues.

Although Asio4All reports a range of samplerates for the Peavey I believe it is 48K fixed and so maybe the "always resample" button should be clicked. Maybe the report is from the generic windows USB audio driver.
David.

None of the settings has any influence on the unwanted sound so far...

@leonS ....... no idea........
How does Asio4All control panel look when working well with Reaper?
Are there any differences?
David.

There are differences (I do not need to tick the Hardware Buffer option for example), but the settings for Reaper definitely do not work for PD. Today things actually got worse again and PD is just shutting down immediately when I toggle the DSP while having ASIO4ALL selected... :/ currently re-installing PD to see if I can at least go back to where I was.

@leonS Yes Pd can stop working because as it opens it tries to set the audio and cannot.
Re-installation might not work because the audio settings are stored in the registry and so might be applied to the new install....... unsure.

If Pd stops working because of audio problems you can reset it with this........Pd Fix.zip
Open fix.pd (with Pd not running) and that will open Pd in a working state again..... then save the audio settings....
David.

I was almost about to give up, but now I found a workaround (after first deleting stuff from the registry and re-installing PD to get it back to working): I tested if the signal coming from my mixer is fine by recording it... and it was, so I had the (pretty obvious...) idea to use the Tape In of the mixer for returning the signal instead of the USB port. Although I don't like the thought of using my internal soundcard and a cheap mini jack output, at least it works now... So, in ASIO4ALL I selected only the input from my mixer and the 2nd output of my soundcard... aaand my patch finally works. Fingers crossed that this will be stable in the future.
So, I found a solution on my own finally, but the "moral support" was still really important for not desperately giving up already a week ago. Thanks!
If there are any other ideas coming to mind, feel free to suggest them. I would still be happy to use only USB...

@leonS Wow...... I can stop worrying.
It was upsetting me almost as much as you..... maybe more as I could not be hands on.
It should be stable.
Write down all the settings just in case.
I have a folder with little text files for everything...... for settings and little descriptions of how various systems are set up for a live performance..... the order programs should be started..... the order things should be plugged in etc.
Batch files are great for automating some of that.......... with different audio settings for Pd for example using command line switches.
It's easy to forget with many different setups.
David.

Good advice!