A52 producing static noise

[GitHub issues - opened <github@alsa-project.org>]

alsa-project/alsa-plugins issue #63 was opened from mingww64:

Setup is GPU----(HDMI)----TV----(eARC)----Sonos Arc

Playing AC3 audio sample works and can confirm the speakers is receiving in AC3 format (Sonos app displaying Dolby Digital 5.1), however using the a52 plugin with `speaker-test` only static noise was coming out intermittently and Sonos app doesn't show any audio format.
```log
Slave: Hardware PCM card 0 'HDA ATI HDMI' device 9 subdevice 0
Its setup is:
  stream       : PLAYBACK
  access       : RW_INTERLEAVED
  format       : S16_LE
  subformat    : STD
  channels     : 2
  rate         : 48000
  exact rate   : 48000 (48000/1)
  msbits       : 16
  buffer_size  : 3072
  period_size  : 768
  period_time  : 16000
  tstamp_mode  : NONE
  tstamp_type  : MONOTONIC
  period_step  : 1
  avail_min    : 768
  period_event : 0
  start_threshold  : 3072
  stop_threshold   : 3072
  silence_threshold: 0
  silence_size : 0
  boundary     : 6917529027641081856
  appl_ptr     : 0
  hw_ptr       : 0
 0 - Front Left
 4 - Front Center
 1 - Front Right
 3 - Rear Right
 2 - Rear Left
 5 - LFE
Time per period = 17.888669
 0 - Front Left
 4 - Front Center
 1 - Front Right
^C 3 - Rear Right
 2 - Rear Left
 5 - LFE
Time per period = 8.512034
```

Issue URL     : https://github.com/alsa-project/alsa-plugins/issues/63
Repository URL: https://github.com/alsa-project/alsa-plugins