[Voyage-linux] Glitches on Playback Start/Resume with Arcam rDAC and Voyage MPD 0.8

[John Mayer]

Just now something odd happened. I resumed playback of a 16/44.1 FLAC file from paused state (without glitches)
and thought I'd check the stream parameters. I was presented with this:

root at voyage:~# cat /proc/asound/card0/stream0 
ARCAM ARCAM DAC at usb-0000:00:1d.0-1, full speed : USB Audio

Playback:
  Status: Running
    Interface = 1
    Altset = 1
    URBs = 3 [ 8 8 8 ]
    Packet Size = 585
    Momentary freq = 44104 Hz (0x2c.1a98)
    Feedback Format = 10.14
  Interface 1
    Altset 1
    Format: S24_3LE
    Channels: 2
    Endpoint: 1 OUT (ASYNC)
    Rates: 32000, 44100, 48000, 88200, 96000

Note the odd momentary frequency. When I ran the same command a few seconds later it displayed the expected momentary frequency of 44100 Hz.
I then started running the command every few seconds and noticed something odd: most of the time it showed the proper 44100 Hz. But now and then
it suddenly displayed 44104 Hz or 44096 Hz. On the other hand "cat /proc/asound/card0/pcm0p/sub0/hw_params" always showed the correct frequency.
I'm guessing this is either an ssh bug or there's genuinely something wrong with the way snd-usb-audio communicates with the Arcam. Any ideas what this
might be?
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