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Feb 16th, 2017
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  1. Recording WAVE '/dev/null' : Signed 32 bit Little Endian, Rate 8000 Hz, Stereo
  2. Soft volume PCM
  3. Control: Boost Capture Volume
  4. min_dB: -3
  5. max_dB: 50
  6. resolution: 256
  7. Its setup is:
  8. stream : CAPTURE
  9. access : RW_INTERLEAVED
  10. format : S32_LE
  11. subformat : STD
  12. channels : 2
  13. rate : 8000
  14. exact rate : 8000 (8000/1)
  15. msbits : 32
  16. buffer_size : 4000
  17. period_size : 1000
  18. period_time : 125000
  19. tstamp_mode : NONE
  20. period_step : 1
  21. avail_min : 1000
  22. period_event : 0
  23. start_threshold : 1
  24. stop_threshold : 4000
  25. silence_threshold: 0
  26. silence_size : 0
  27. boundary : 2097152000
  28. Slave: Route conversion PCM
  29. Transformation table:
  30. 0 <- 0
  31. 1 <- 0
  32. Its setup is:
  33. stream : CAPTURE
  34. access : MMAP_INTERLEAVED
  35. format : S32_LE
  36. subformat : STD
  37. channels : 2
  38. rate : 8000
  39. exact rate : 8000 (8000/1)
  40. msbits : 32
  41. buffer_size : 4000
  42. period_size : 1000
  43. period_time : 125000
  44. tstamp_mode : NONE
  45. period_step : 1
  46. avail_min : 1000
  47. period_event : 0
  48. start_threshold : 1
  49. stop_threshold : 4000
  50. silence_threshold: 0
  51. silence_size : 0
  52. boundary : 2097152000
  53. Slave: Mmap emulation PCM
  54. Its setup is:
  55. stream : CAPTURE
  56. access : MMAP_INTERLEAVED
  57. format : S32_LE
  58. subformat : STD
  59. channels : 2
  60. rate : 8000
  61. exact rate : 8000 (8000/1)
  62. msbits : 32
  63. buffer_size : 4000
  64. period_size : 1000
  65. period_time : 125000
  66. tstamp_mode : NONE
  67. period_step : 1
  68. avail_min : 1000
  69. period_event : 0
  70. start_threshold : 1
  71. stop_threshold : 4000
  72. silence_threshold: 0
  73. silence_size : 0
  74. boundary : 2097152000
  75. Slave: Hardware PCM card 1 'mems-mic' device 0 subdevice 0
  76. Its setup is:
  77. stream : CAPTURE
  78. access : RW_INTERLEAVED
  79. format : S32_LE
  80. subformat : STD
  81. channels : 2
  82. rate : 8000
  83. exact rate : 8000 (8000/1)
  84. msbits : 32
  85. buffer_size : 4000
  86. period_size : 1000
  87. period_time : 125000
  88. tstamp_mode : NONE
  89. period_step : 1
  90. avail_min : 1000
  91. period_event : 0
  92. start_threshold : 2097152000
  93. stop_threshold : 4000
  94. silence_threshold: 0
  95. silence_size : 0
  96. boundary : 2097152000
  97. appl_ptr : 0
  98. hw_ptr : 0
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