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hifiberry / hifiberry-os

Linux distribution optimized for audio playback
MIT License
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"Pop" from speakers attached to Amp2 at the start and end of any playback #520

Closed baf closed 3 months ago

baf commented 3 months ago

Describe the bug I am using a Pi 3B and HiFiBerry Amp2. A "pop" is heard from the attached speakers (Paradigm Micro Monitor v2) at the start and end of playback using HiFiBerry OS. This occurs when playing using LMS/Squeezelite (and any source within, e.g. Tidal, BBC Sounds, MP3 radio stream) as well as AirPlay directly to the HiFiBerry OS device.

Using the same hardware, same power supply, and same LMS and AirPlay tests with piCorePlayer v8.2.0 does not produce the "pop" - for this test, I simply swapped the microSD card with HiFiBerry OS for one with piCorePlayer; all other variables were the same. I also have several other Pi 3 and 4 devices with HiFiBerry DACs (DAC+ Pro, DAC2 Pro, DAC2 HD) and none of them have this problem with HiFiBerry OS.

HiFiBerryOS version 20230404

HiFiBerry sound card Amp2

To Reproduce Steps to reproduce the behavior:

  1. Start playing any content, from silence
  2. Hear "pop" before playback begins
  3. Stop playing the content
  4. Hear another "pop"

Expected behavior Playback without "pop" sounds

Screenshots N/A

Browser (if applicable) N/A

Additional context N/A

hifiberry commented 3 months ago

Unfortunately I can't reproduce this.

baf commented 3 months ago

Okay - any suggestions on how I can troubleshoot?

hifiberry commented 3 months ago

Sorry, no.

baf commented 3 months ago

@hifiberry, sorry to hear that. Could it be a hardware issue? I also tried support and was directed to open an issue, so I'm not sure what else to do other than just run piCorePlayer on this particular setup. I have three other Pi 3 and 4 devices with HiFiBerry DACs, and the rest work perfectly with HiFiBerry OS.

hifiberry commented 3 months ago

Could be. Please contact support@hifiberry.com