1. 16 Apr, 2013 1 commit
  2. 15 Apr, 2013 4 commits
  3. 13 Apr, 2013 1 commit
    • Calvin Owens's avatar
      ALSA: usb: Add quirk for 192KHz recording on E-Mu devices · 1539d4f8
      Calvin Owens authored
      When recording at 176.2KHz or 192Khz, the device adds a 32-bit length
      header to the capture packets, which obviously needs to be ignored for
      recording to work properly.
      
      Userspace expected:  L0 L1 L2 R0 R1 R2
      ...but actually got: R2 L0 L1 L2 R0 R1
      
      Also, the last byte of the length header being interpreted as L0 of
      the first sample caused spikes every 0.5ms, resulting in a loud 16KHz
      tone (about the highest 'B' on a piano) being present throughout
      captures.
      
      Tested at all sample rates on an E-Mu 0404USB, and tested for
      regressions on a generic USB headset.
      Signed-off-by: default avatarCalvin Owens <jcalvinowens@gmail.com>
      Cc: <stable@vger.kernel.org>
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      1539d4f8
  4. 12 Apr, 2013 34 commits