[How to do instruction] Sound Tweaks Now on GitHub

[officialsm]

Hi,
done on Raspberry 4 and Moode 7.0.1 it works:

-----------------------
| Creating Sound File |
-----------------------
-----------------------------------
| Increasing Sound Group Priority |
-----------------------------------
-----------------------------
| Improving Network Latency |
-----------------------------
---------------------------
| Creating System Service |
---------------------------
------------------------------------
| Rebooting System Enjoy the Music |
------------------------------------

But can you hear any difference?

Sorry i have to modify wjat i said.
Creation of file sound works. But i fi i open it and run each command manually i have an error. 
I dont know why


pi@Simoode-audio:~ $ chrt -f -p 81 $(pidof mpd)
chrt: failed to set pid 1547's policy: Operation not permitted
pi@Simoode-audio:~ $ taskset -c -p 1 $(pidof mpd)
pid 1547's current affinity list: 0-3
taskset: failed to set pid 1547's affinity: Operation not permitted
pi@Simoode-audio:~ $ chrt -f -p 54 $(pgrep ksoftirqd/0)
chrt: failed to set pid 9's policy: Operation not permitted
pi@Simoode-audio:~ $ chrt -f -p 54 $(pgrep ksoftirqd/1)
chrt: failed to set pid 15's policy: Operation not permitted
pi@Simoode-audio:~ $ echo 1000000 > /proc/sys/kernel/sched_latency_ns
-bash: /proc/sys/kernel/sched_latency_ns: Permission denied

[philrandal]

Hi,
done on Raspberry 4 and Moode 7.0.1 it works:

-----------------------
| Creating Sound File |
-----------------------
-----------------------------------
| Increasing Sound Group Priority |
-----------------------------------
-----------------------------
| Improving Network Latency |
-----------------------------
---------------------------
| Creating System Service |
---------------------------
------------------------------------
| Rebooting System Enjoy the Music |
------------------------------------

But can you hear any difference?

Sorry i have to modify wjat i said.
Creation of file sound works. But i fi i open it and run each command manually i have an error. 
I dont know why


pi@Simoode-audio:~ $ chrt -f -p 81 $(pidof mpd)
chrt: failed to set pid 1547's policy: Operation not permitted
pi@Simoode-audio:~ $ taskset -c -p 1 $(pidof mpd)
pid 1547's current affinity list: 0-3
taskset: failed to set pid 1547's affinity: Operation not permitted
pi@Simoode-audio:~ $ chrt -f -p 54 $(pgrep ksoftirqd/0)
chrt: failed to set pid 9's policy: Operation not permitted
pi@Simoode-audio:~ $ chrt -f -p 54 $(pgrep ksoftirqd/1)
chrt: failed to set pid 15's policy: Operation not permitted
pi@Simoode-audio:~ $ echo 1000000 > /proc/sys/kernel/sched_latency_ns
-bash: /proc/sys/kernel/sched_latency_ns: Permission denied

If you're doing it manually, you'll need to prefix each of those commands with sudo.

Cheers,

Phil

[officialsm]

Hi,
done on Raspberry 4 and Moode 7.0.1 it works:

-----------------------
| Creating Sound File |
-----------------------
-----------------------------------
| Increasing Sound Group Priority |
-----------------------------------
-----------------------------
| Improving Network Latency |
-----------------------------
---------------------------
| Creating System Service |
---------------------------
------------------------------------
| Rebooting System Enjoy the Music |
------------------------------------

But can you hear any difference?

i think is impossible to ear differences. Is not easy to switch configuration for a A/B test

[JrBarco]

does this tweak improve the sound via Hat Dac RCA out?

or is the tweak only for usb out

[philrandal]

does this tweak improve the sound via Hat Dac RCA out?

or is the tweak only for usb out

It's not just for USB output.

Try it and see if you can hear a difference.

Phil

[Tim Curtis]

You should ask the maintainer
https://github.com/dynobot/Linux-Audio-Adjustments