1. 10 1月, 2011 1 次提交
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    • C
      ALSA: oxygen: fix distorted output on AK4396-based cards · df91bc23
      Clemens Ladisch 提交于
      When changing the sample rate, the CMI8788's master clock output becomes
      unstable for a short time.  The AK4396 needs the master clock to do SPI
      writes, so writing to an AK4396 control register directly after a sample
      rate change will garble the value.  In our case, this leads to the DACs
      being misconfigured to I2S sample format, which results in a wrong
      output level and horrible distortions on samples louder than -6 dB.
      
      To fix this, we need to wait until the new master clock signal has
      become stable before doing SPI writes.
      Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
      Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      df91bc23
  14. 19 5月, 2008 5 次提交
  15. 24 4月, 2008 7 次提交