Sound Distortion and Delay

Fatih19

A couple days ago, I booted my OS a day after installing it. I opened youtube and I found my sounds was distorted. The same damn problem I've been trying to avoid after distrohopping from Fedora to Ubuntu to Solus. I looked it up and then I found the solution in the Ubuntu forum. I also noticed that in my Raven sidebar, Firefox is not the only software that appeared in the sound applet. There's also this thing called "speech-dispatcher". In the Ubuntu forum that I've read, it also mention stuff about this "speech-dispatcher". So I deduce (there's also a guide on that Ubuntu forum on how to get rid of it) that this is probably the root of the problem. So I did this.

Open System Monitor
Look for "speech-dispatcher"
Kill the "speech-dispatcher" by right clicking and choosing kill
Open the terminal
sudo gedit '/usr/share/speech-dispatcher/conf/speechd.conf'
Look at the bottom for #DisableAutoSpawn
Delete the hashtag in front of it.

The step 3 force closed the software for the time being.
The step 7 ensures the software doesn't appear out of nowhere in the foreseeable future.
So yeah, just wanted to throw it out there if maybe newcomers crash into this issue (I'm a newcomer too). The audio works perfectly fine now.

Neumie

I have also had sound issues with 2 Gigabyte motherboards on different distros over the years. The way i have fixed it is to change
load-module module-udev-detect
to
load-module module-udev-detect tsched=0
in the default.pa file. In solus this file is located at:
/usr/share/pulseaudio/default.pa.
Note: I have no idea what this actually does but my audio works fine.

waterwin

Neumie I had on a new machine with fresh install Solus 4 a lot of high frequency noise when test listening to Rhythmbox radio stations. No issues in games through Steam, no issues on dual boot Windows7 on same machine. I added the tsched=0 and the sound issue is gone.
Thanks for posting!

The explanation might be here: https://askubuntu.com/questions/371595/for-pulseaudio-what-does-tsched-do-and-what-are-the-defaults

catfishsushi

I have been having audio distortion with any mic/device since switching to Linux OS's.
Input is at 9% using a: Audio-technia 2035 mic, Berhinger Xenity 802 mixer. Any time i turn on OBS and or Discord, i get distortion for at least 20-25 minutes. Any help or ideas?

catfishsushi

Update: I tweeted Discord's techs, they replied, "To fix the distortion, remove/toggle the Hardware Acceleration. There is no long-term fix for this issue. "

sangheeta

catfishsushi
How do plug your mixer to your computer?

catfishsushi

From mixers "Control Room Out" 2 - 1/4 inch plugs that end in a single 1/8 stereo, to the mic input on back of MoBo. I have tried both the Line-Input and Mic, so far Mic is most forgiving of input choices. AsRock AB350 Pro4 Mobo.

Neumie

Just a quick update on my fix above regarding tsched=0 and where it should go (i can't to edit my original post). It's better practice to do the following:

Create the following directory if it doesn't already exist: /etc/pulse
Copy the default.pa file from /usr/share/pulseaudio to /etc/pulse.
Then apply the fix as described above in the /etc/pulse directory.

Doing it this way should mean that upgrades to pulseaudio shoudln't overwrite the fix.

You can also copy default.pa to .config/pulse in your Home directory and make the change there if you want it configured on a per user basis as I understand it.