0

beginning of sound cut

Thomas Parquier

March 25, 2016 11:13

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Hello, I have dac light with upgraded preconfigured image (kernel 4).

The command 

aplay /usr/share/sounds/alsa/Front_Left.wav  -Dpulse

plays the sound, but the beginning is cut.

-Thomas

 

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9 comments

• 0
  
  HiFiBerry team March 25, 2016 11:34

  This is an application problem. Why are you using Pulseaudio?

  
  Best regards,
  Daniel

• 0
  
  Thomas Parquier March 25, 2016 11:44

  because I have 2 services running on the pi : shairport-sync and gmediarenderer, and I'd like to be able to stream audio via bluetooth and pulse sink from other computers.

  Here is the error when I use sysdefault :

  $ aplay /usr/share/sounds/alsa/Front_Left.wav  -Dsysdefault
  Lecture WAVE '/usr/share/sounds/alsa/Front_Left.wav' : Signed 16 bit Little Endian, Fréquence 48000 Hz, Mono
  aplay: set_params:1145: Les paramètres matériel n'ont pas pu être installés:
  ACCESS:  RW_INTERLEAVED
  FORMAT:  S16_LE
  SUBFORMAT:  STD
  SAMPLE_BITS: 16
  FRAME_BITS: 16
  CHANNELS: 1
  RATE: 48000
  PERIOD_TIME: 125000
  PERIOD_SIZE: 6000
  PERIOD_BYTES: 12000
  PERIODS: 4
  BUFFER_TIME: 500000
  BUFFER_SIZE: 24000
  BUFFER_BYTES: 48000
  TICK_TIME: 0

   

  in english : "Les paramètres matériel n'ont pas pu être installés" => "hardware parameters could not be installed"

• 0
  
  Thomas Parquier March 25, 2016 11:56

  ~ $ aplay -L
  null
      Discard all samples (playback) or generate zero samples (capture)
  pulse
      Playback/recording through the PulseAudio sound server
  sysdefault:CARD=sndrpihifiberry
      snd_rpi_hifiberry_dac,
      Default Audio Device

• 0
  
  HiFiBerry team March 25, 2016 12:25

  aplay is not a good tool for media playback. It just tells you that it can't playback a mono file as the sound card is a 2 channel sound card. I recommend using mplayer instead as it automatically detects what formats/sample rates are supported and uses these instead of just giving an error message.

  Best regards,
  Daniel

• 0
  
  Thomas Parquier March 25, 2016 12:28

  ok, same pb : sound cut with alsa

  $ mplayer -ao alsa /usr/share/sounds/alsa/Front_Left.wav

• 0
  
  HiFiBerry team March 25, 2016 12:35

  In this case I would guess that the file itself it corrupted.

  Best regards,
  Daniel

• 0
  
  Thomas Parquier March 25, 2016 12:38

  I've downloaded the file, it plays correctly on my mac...

   

• 0
  
  HiFiBerry team March 25, 2016 13:02

  Unfortunately I can't say why it doesn't on your Raspberry Pi.

  Best regards
  Daniel

• 0
  
  Thomas Parquier March 25, 2016 13:15

  OK... thanks anyway