search

hifiberry / hifiberry-os

Linux distribution optimized for audio playback
MIT License
998 stars 127 forks source link

When Analog Input is enabled but not active/playing, loud periodic noise output on speakers #204

Open tobiv opened 3 years ago

tobiv commented 3 years ago

Describe the bug A very loud, scratch-like noise is being output when the Analog Input is enabled, but not active/playing. The noise is not continuous, but goes on for ~1 second, then off for ~1 second, and so on. It is so loud that it's audible even when Volume is all the way down at zero. Edit to add: LED D2 flashes in same interval as noise.

HiFiBerryOS version 20201213

HiFiBerry sound card

  1. DAC+ ADC Pro
  2. Amp60

To Reproduce Steps to reproduce the behavior:

  1. Analog Input disabled. It doesn't matter if anything is connected to the input.
  2. Select and play Source other than the Analog Input. It doesn't matter if sound is playing, as long as the Source is shown in Now Playing.
  3. Go to Sources, enable Analog Input. Noise immediately starts, over sound from current Source or just by itself.
  4. Go to Now Playing, and Stop/Pause current source.
  5. Now Playing switches to Analog Input and the noise stops.

(Setting "Start when Signal detected" makes no difference to this.)

Expected behavior No scary noise by simply having Analog Input enabled.

Screenshots N/A

Browser (if applicable)

Additional context N/A

tobiv commented 3 years ago

Edit to add: LED D2 flashes in same interval as noise.

I also posted this on the hifiberry hardware support forum, suspecting a hardware issue due to the flashing LED.

hifiberry commented 3 years ago

You might have set the sensitivity too high. Try changing the sensitivity.

tobiv commented 3 years ago

I have tried all three sensitivities and also with "Start when Signal detected" turned off, that didn't help.

tobiv commented 3 years ago

Further testing: Input is working fine if it's the first thing playing after a reboot. So the issue only after switching to another source.

treuwark commented 2 years ago

The same here.

HifiBerry sound card

There is a loud scratch noise while enabling analog input. It doesn´t matter if aamp60 is used or not. Often analog input starts automatically playing although it isn´t set in the options "Start when Signal Detected".

what´s wrong ?

hifiberry commented 2 years ago

Try changing the sensitivity of the input.

treuwark commented 2 years ago

Do you mean this ?

grafik

hifiberry commented 2 years ago

yes

treuwark commented 2 years ago

The setting has no effect. There is a scratch noise. What to do ?

hifiberry commented 2 years ago

I can't say more. As a workaround, disable analog input if you don't use it.

tobiv commented 2 years ago

FWIW, if you stop the current source before turning on the input, it works. There is still a faint noise when turning on the input, and occasionally when autostart is enabled. Better with sensitivity on low, but then it turns off on quiet parts… 😄

treuwark commented 2 years ago

@hifiberry Disabling is no option. I have choosen this, because of the analog input.

@tobiv Thank you. In parts i can retrace that behavior you described. My problem as mentioned in my first post, analog input starts playing, although "Start When signal Detected" is disabled. Stopping in the web interface of a browser connected via lan, has no effect. In the ui icon is shortly changing. Other sources work correct for stop/start.

Where can stop/start be affected ? Which log file should be checked ? How to stop/start via command line for testing purpose ?

treuwark commented 2 years ago

This is the output when stopping

Mar 05 19:07:17 hifiberry systemd[1]: Starting Store volume... Mar 05 19:07:17 hifiberry systemd[1]: Starting Cleanup of Temporary Directories... Mar 05 19:07:17 hifiberry systemd-tmpfiles[1251]: /usr/lib/tmpfiles.d/samba.conf:1: Line references path below legacy directory /var/run/, updating /var/run/samba → /run/samba; please update the tmpfiles.d/ drop-in file accordingly. Mar 05 19:07:17 hifiberry store-volume[1250]: Storing ALSA volume... Mar 05 19:07:17 hifiberry systemd[1]: systemd-tmpfiles-clean.service: Deactivated successfully. Mar 05 19:07:17 hifiberry systemd[1]: Finished Cleanup of Temporary Directories. Mar 05 19:07:17 hifiberry systemd[1]: store-volume.service: Deactivated successfully. Mar 05 19:07:17 hifiberry systemd[1]: Finished Store volume. Mar 05 19:08:06 hifiberry python3[388]: INFO: controller - sent Pause to org.mpris.MediaPlayer2.alsaloop Mar 05 19:08:06 hifiberry python3[388]: 127.0.0.1 - - [05/Mar/2022 19:08:06] "POST /api/player/playpause HTTP/1.1" 200 2 Mar 05 19:08:06 hifiberry beocreate2[723]: Source 'alsaloop' has deactivated. Mar 05 19:08:06 hifiberry python3[388]: INFO: http_post - posted metadata update to http://127.0.0.1:80/sources/metadata ({'artist': None, 'title': None, 'albumArtist': None, 'albumTitle': None, 'artUrl': None, 'externalArtUrl': None, 'discNumber': None, 'tracknumber': None, 'playerName': 'alsaloop', 'playerState': 'stopped', 'streamUrl': dbus.String('alsaloop://', variant_level=1), 'playCount': None, 'mbid': None, 'artistmbid': None, 'albummbid': None, 'loved': None, 'wiki': None, 'loveSupported': False, 'tags': [], 'skipped': False, 'host_uuid': None, 'releaseDate': None, 'trackid': None, 'hifiberry_cover_found': False, 'duration': 0, 'time': 0, 'position': 0, 'positionupdate': 1646503686.8503897, 'trackId': None}) Mar 05 19:08:06 hifiberry python3[1028]: INFO: root - playback status changed from stopped to playing Mar 05 19:08:07 hifiberry python3[388]: WARNING: controller - Metadata without artist, album or title - what's wrong here? [alsaloop, playing] None: None (None) None Mar 05 19:08:07 hifiberry beocreate2[723]: Source 'alsaloop' has activated. Mar 05 19:08:07 hifiberry python3[388]: INFO: http_post - posted metadata update to http://127.0.0.1:80/sources/metadata ({'artist': None, 'title': None, 'albumArtist': None, 'albumTitle': None, 'artUrl': None, 'externalArtUrl': None, 'discNumber': None, 'tracknumber': None, 'playerName': 'alsaloop', 'playerState': 'playing', 'streamUrl': dbus.String('alsaloop://', variant_level=1), 'playCount': None, 'mbid': None, 'artistmbid': None, 'albummbid': None, 'loved': None, 'wiki': None, 'loveSupported': False, 'tags': [], 'skipped': False, 'host_uuid': None, 'releaseDate': None, 'trackid': None, 'hifiberry_cover_found': False, 'duration': 0, 'time': 0, 'position': 0, 'positionupdate': 1646503687.9065309, 'trackId': None}) Mar 05 19:08:10 hifiberry beocreate2[723]: Checking MPD database update status...

hifiberry commented 9 months ago

Is this still active?

tobiv commented 8 months ago

Yes, it is still happening, just tested (v20230404). Should I try with the latest alpha?

hifiberry commented 8 months ago

Feel free to try. Nothing specific has been done to address this, but as you seem to be the only user with this issue, it might just work.

treuwark commented 8 months ago

Feel free to try. Nothing specific has been done to address this, but as you seem to be the only user with this issue, it might just work.

No, its still active. I didn´t follow up at that time, because there was no improvement.