Pulsating noise from pi/hifiberry when not playing

[stephi premium]

stephi premium

20. Oktober 2016 at 21:47 #23490

Hi All Max2play enthousiasts!

I am so pleased with max2play. Streaming 24 hours a day with my pi/hifiberry/max2play!…..well almost.
And when it’s time to rest my ears, I leave my amplifier and Pi on and hear a pulsating noise coming from the speakers. This noise disappears when I start playing music again!

Some sort of Idle noise ? raspberry goes to sleep? ….?

Anybody a solution for this problem?

Thanks!

[Christoph premium]

Christoph premium

28. Oktober 2016 at 11:29 #23590

Hello stephi,

Thanks for your request.

Please try to deactivate the inbuild audio of the Raspberry Pi under Raspberry Settings. If you do thi you have to set „-o hw:0 -V Master“ in the command line options. So the AMP should be deactivated if Squeezelite is stopped.

Best Regards

[stephi premium]

stephi premium

4. Januar 2017 at 14:15 #25484

Thanks for your reply! Sorry for my late respons 😉

“-o hw:0 -V Master” will by-pass the equalizer so that’s no option. also deactivating the inbuild PI audio didnt’owrk…As in : I couldnt do it 🙂

BUT! I found the following:

-C <timeout> „Close output device when idle after timeout seconds, default is to keep it open while player is ‘on’“

So in the command line options filed I’ve put in:
„-C 5“

Now, when i stop playing, after 5 seconds the audio output stops and the noise is gone!

Thanks!

p.s. I do use the „-o hw:0 -V Master“ option on my other PI, wich is connected to my livingroom stereo without equalizer. That works great and is preferable I think. But how to make it work on my other device with my ‚plugequal’as soundcard?