Reply To: [NEW UPDATE] Pulsating sound with new Hifiberry Amp2

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zelfiris premium
27. November 2017 at 2:11 #32645

Hi everyone,

I have exactly the same problem as tof0256.

I have Raspberry PI 3 B with a Hifiberry amp2 connncted to him. The alimentation is 24V and 6.0A as indicated on the Hifiberry website.

My condiguration is Max2Play premium V2.44 and like tof0256 I configure M2P with the web interface by selecting the „Hifi Berry
Amp 2“ in the selection list.

The sound is very good but like tof0256 after a few time there is some pulsation noise with squeezelite and also with the plugin spotify connect too but I didn’t try with Shairport.

Can you help me ? This is very unpleasant.

Here is the debug information from the web interface : 

#### SQUEEZELITE VERSION ####
Squeezelite Max2Play v1.0.3 based on v1.8.7-999, Copyright 2012-2015 Adrian Smith, 2015-2017 Ralph Irving.
 

#### SQUEEZELITE BUILDOPTIONS ####
Build options: LINUX ALSA EVENTFD RESAMPLE FFMPEG VISEXPORT IR GPIO DSD CONTROLSBS ALSASYNC BLUETOOTHSYNC
 

#### AUDIOPLAYER CONFIG ####
### Configuration of Audioplayers
SQUEEZELITE_PARAMETER=-o sysdefault:CARD=sndrpihifiberry -a 80:4:: -o hw:1 -V Digital
SQUEEZESLAVE_PARAMETER=-n plugequal
SHAIRPORT_PARAMETER=-d default:CARD=sndrpihifiberry -t hardware -m hw:1 -c Digital
USE_USB_DAC=0
USE_EQUALIZER=0
SYSTEM_USER=pi
YMPD_PARAMETER=--webport 8081
SPOTIFYCONNECT_PARAMETER=--username ????? --password "???" --device sysdefault:CARD=sndrpihifiberry
 

#### SQUEEZELITE -l ####
Output devices:
  null                           - Discard all samples (playback) or generate zero samples (capture)
  equal                         
  plugequal                      - Equalizer for plughw:0,0
  default:CARD=ALSA              - bcm2835 ALSA, bcm2835 ALSA - Default Audio Device
  sysdefault:CARD=ALSA           - bcm2835 ALSA, bcm2835 ALSA - Default Audio Device
  dmix:CARD=ALSA,DEV=0           - bcm2835 ALSA, bcm2835 ALSA - Direct sample mixing device
  dmix:CARD=ALSA,DEV=1           - bcm2835 ALSA, bcm2835 IEC958/HDMI - Direct sample mixing device
  dsnoop:CARD=ALSA,DEV=0         - bcm2835 ALSA, bcm2835 ALSA - Direct sample snooping device
  dsnoop:CARD=ALSA,DEV=1         - bcm2835 ALSA, bcm2835 IEC958/HDMI - Direct sample snooping device
  hw:CARD=ALSA,DEV=0             - bcm2835 ALSA, bcm2835 ALSA - Direct hardware device without any conversions
  hw:CARD=ALSA,DEV=1             - bcm2835 ALSA, bcm2835 IEC958/HDMI - Direct hardware device without any conversions
  plughw:CARD=ALSA,DEV=0         - bcm2835 ALSA, bcm2835 ALSA - Hardware device with all software conversions
  plughw:CARD=ALSA,DEV=1         - bcm2835 ALSA, bcm2835 IEC958/HDMI - Hardware device with all software conversions
  default:CARD=sndrpihifiberry   - snd_rpi_hifiberry_dacplus,  - Default Audio Device
  sysdefault:CARD=sndrpihifiberry - snd_rpi_hifiberry_dacplus,  - Default Audio Device
  dmix:CARD=sndrpihifiberry,DEV=0 - snd_rpi_hifiberry_dacplus,  - Direct sample mixing device
  dsnoop:CARD=sndrpihifiberry,DEV=0 - snd_rpi_hifiberry_dacplus,  - Direct sample snooping device
  hw:CARD=sndrpihifiberry,DEV=0  - snd_rpi_hifiberry_dacplus,  - Direct hardware device without any conversions
  plughw:CARD=sndrpihifiberry,DEV=0 - snd_rpi_hifiberry_dacplus,  - Hardware device with all software conversions

 

#### SHAIRPORT VERSION ####
2.8.0-openssl-Avahi-ALSA-soxr
 

#### OUTPUT SOUND DETAILS CARD 0 ####
closed
 

#### OUTPUT SOUND DETAILS CARD 1 ####
access: MMAP_INTERLEAVED
format: S32_LE
subformat: STD
channels: 2
rate: 44100 (44100/1)
period_size: 882
buffer_size: 3528

Thank you and sorry for my bad english