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AAC codec being used for B06+

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Aug 20th, 2025
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  1. default 12:14:22.011413-0700 QuickLookUIService AudioQueueObject.cpp:9238 SetCodecLoudnessParameters: LoudnessManager::GetSettings() returned -66628 (....): not applying loudness defaults
  2. default 12:14:24.028142-0700 bluetoothd Bad48KHzCodecs: Disabling 48 KHz - Device is NOT in 48 KHz AAC allowlist
  3. error 12:14:24.280924-0700 bluetoothd Length of AVDTP Codec Info is too short for Apple Vendor-Specific Codec
  4. default 12:14:24.280946-0700 bluetoothd Audio Codec ID VENDOR-SPECIFIC for remote SEID 10
  5. error 12:14:24.330643-0700 bluetoothd Length of AVDTP Codec Info is too short for Apple Vendor-Specific Codec
  6. default 12:14:24.330707-0700 bluetoothd Audio Codec ID VENDOR-SPECIFIC for remote SEID 8
  7. default 12:14:24.392431-0700 bluetoothd Audio Codec ID MPEG-2,4 AAC for remote SEID 7
  8. default 12:14:24.423919-0700 bluetoothd Audio Codec ID SBC for remote SEID 6
  9. default 12:14:24.455163-0700 bluetoothd Audio Codec ID VENDOR-SPECIFIC for remote SEID 11
  10. error 12:14:24.455459-0700 bluetoothd Length of AVDTP Codec Info is too short for Apple Vendor-Specific Codec
  11. default 12:14:24.455496-0700 bluetoothd Selected preferred codec AVDTP_CODEC_MPEG_AAC (0x2) out of 5 available endpoints
  12. error 12:14:24.455581-0700 bluetoothd Length of AVDTP Codec Info is too short for Apple Vendor-Specific Codec
  13. default 12:14:24.455699-0700 bluetoothd Selected preferred codec AVDTP_CODEC_MPEG_AAC (0x2) out of 5 available endpoints
  14. error 12:14:24.455745-0700 bluetoothd Length of AVDTP Codec Info is too short for Apple Vendor-Specific Codec
  15. error 12:14:24.455964-0700 bluetoothd Length of AVDTP Codec Info is too short for Apple Vendor-Specific Codec
  16. default 12:14:24.587301-0700 bluetoothd A2DP configured at 44.1 KHz. Codec: AAC-LC, VBR max: 256 kbps. 1 frames * (12+744) bytes = 756 per RTP (max=879) every 23.22 ms
  17. default 12:14:24.630970-0700 coreaudiod ACMP4AACBaseEncoder.cpp:295 (0xb021a0040) Input format: 2 ch, 44100 Hz, Float32, interleaved
  18. default 12:14:24.631028-0700 coreaudiod ACMP4AACBaseEncoder.cpp:298 (0xb021a0040) Output format: 2 ch, 44100 Hz, aac (0x00000000) 0 bits/channel, 0 bytes/packet, 1024 frames/packet, 0 bytes/frame
  19. default 12:14:24.632982-0700 coreaudiod ACMP4AACBaseEncoder.cpp:692 (0xb021a0040) @@@@ 'aac ' encoder configuration: srIn = 44100, srOut = 44100, chans = 2, bitRateFormat = 1, bitrate = 128000, quality (complexity) = 64, VBRQ = -1, speechOptimization = 0, packetSizeLimit = 0 (bits), packetBitSizeMin = 0 (bits), mMaxPacketSize = 1536 (bytes), userBandwidth = 0, delayMode = 0, mCodecDelay = 2112, drcConfiguration = 0, mPrePostFillMask = 0x0
  20. default 12:14:24.634610-0700 coreaudiod ACMP4AACBaseEncoder.cpp:692 (0xb021a0040) @@@@ 'aac ' encoder configuration: srIn = 44100, srOut = 44100, chans = 2, bitRateFormat = 1, bitrate = 128000, quality (complexity) = 32, VBRQ = -1, speechOptimization = 0, packetSizeLimit = 0 (bits), packetBitSizeMin = 0 (bits), mMaxPacketSize = 1536 (bytes), userBandwidth = 0, delayMode = 0, mCodecDelay = 2112, drcConfiguration = 0, mPrePostFillMask = 0x0
  21. default 12:14:24.635818-0700 coreaudiod ACMP4AACBaseEncoder.cpp:692 (0xb021a0040) @@@@ 'aac ' encoder configuration: srIn = 44100, srOut = 44100, chans = 2, bitRateFormat = 3, bitrate = 128000, quality (complexity) = 32, VBRQ = -1, speechOptimization = 0, packetSizeLimit = 0 (bits), packetBitSizeMin = 0 (bits), mMaxPacketSize = 1536 (bytes), userBandwidth = 0, delayMode = 0, mCodecDelay = 2112, drcConfiguration = 0, mPrePostFillMask = 0x0
  22. default 12:14:24.636320-0700 coreaudiod ACMP4AACBaseEncoder.cpp:692 (0xb021a0040) @@@@ 'aac ' encoder configuration: srIn = 44100, srOut = 44100, chans = 2, bitRateFormat = 3, bitrate = 128000, quality (complexity) = 32, VBRQ = -1, speechOptimization = 0, packetSizeLimit = 0 (bits), packetBitSizeMin = 256 (bits), mMaxPacketSize = 1536 (bytes), userBandwidth = 0, delayMode = 0, mCodecDelay = 2112, drcConfiguration = 0, mPrePostFillMask = 0x0
  23. default 12:14:24.636805-0700 coreaudiod ACMP4AACBaseEncoder.cpp:692 (0xb021a0040) @@@@ 'aac ' encoder configuration: srIn = 44100, srOut = 44100, chans = 2, bitRateFormat = 3, bitrate = 192000, quality (complexity) = 32, VBRQ = -1, speechOptimization = 0, packetSizeLimit = 5952 (bits), packetBitSizeMin = 256 (bits), mMaxPacketSize = 1536 (bytes), userBandwidth = 0, delayMode = 0, mCodecDelay = 2112, drcConfiguration = 0, mPrePostFillMask = 0x0
  24. default 12:14:24.739070-0700 QuickLookUIService AudioQueueObject.cpp:9238 SetCodecLoudnessParameters: LoudnessManager::GetSettings() returned -66628 (....): not applying loudness defaults
  25. default 12:14:24.932712-0700 coreaudiod ACMP4AACBaseEncoder.cpp:692 (0xb021a0040) @@@@ 'aac ' encoder configuration: srIn = 44100, srOut = 44100, chans = 2, bitRateFormat = 3, bitrate = 192000, quality (complexity) = 32, VBRQ = -1, speechOptimization = 0, packetSizeLimit = 5952 (bits), packetBitSizeMin = 256 (bits), mMaxPacketSize = 1536 (bytes), userBandwidth = 0, delayMode = 0, mCodecDelay = 2112, drcConfiguration = 0, mPrePostFillMask = 0x0
  26. default 12:14:24.987395-0700 bluetoothd BTLQ set Link Quality Data codec to 2
  27. default 12:14:25.095868-0700 bluetoothd BTLQ set Link Quality Data codec to 2
  28. default 12:14:34.986156-0700 coreaudiod ACMP4AACBaseEncoder.cpp:692 (0xb021a0040) @@@@ 'aac ' encoder configuration: srIn = 44100, srOut = 44100, chans = 2, bitRateFormat = 3, bitrate = 192000, quality (complexity) = 32, VBRQ = -1, speechOptimization = 0, packetSizeLimit = 5952 (bits), packetBitSizeMin = 256 (bits), mMaxPacketSize = 1536 (bytes), userBandwidth = 0, delayMode = 0, mCodecDelay = 2112, drcConfiguration = 0, mPrePostFillMask = 0x0
  29. default 12:14:48.472619-0700 Music <<HLS-FASB>> fasb_log: [0x600000c49360:I/KI.28]
  30. [FigAlternateFilterMonitorForNotification<0x600001376c00> "PowerStateChanged" state:1 currentFilter:[FigAlternateFilter <LowPowerMode:0x6000016232c0> priority:850]]
  31. [FigAlternateFilterMonitorForNotification<0x600001376b80> "StreamingRestrictions_RestrictionsChanged" state:0 currentFilter:(null)]
  32. [FigAlternateFilterMonitorForPlaybackBitrate lastMeasuredBitrate:0 ]
  33. }
  34. Filters:
  35. {
  36. To decode base64 encoded filter output, run:
  37. % B64="ENCODEDVALUE";python3 -c"import base64,sys;n=int.from_bytes(base64.b64decode(sys.argv[1]),'little');print([i for i in range(0,n.bit_length())if 0!=(n&(1<<i))])" $B64
  38. /w8= 12 -> 12: [FigSimpleAlternateFilter <AllowedCPC:0x6000016290a0> priority:1000 systemCPC:0x3]
  39. /w8= 12 -> 12: [FigSimpleAlternateFilter <MediaValidation:0x600001629f10> priority:1000 allowUnknownCodecs:NO]
  40. default 12:14:48.472650-0700 Music <<HLS-FASB>> fasb_log: [0x600000c49360:I/KI.28]
  41. [FigAlternateFilterTreeFilter <VideoLayoutPreference:0x6000027bbbc0> priority:880]
  42. /w8= 12 -> 12: |--> Leaf: [FigSimpleAlternateFilter <VideoLayoutPreferenceMain:0x6000016f3800> priority:880 lowestplayable:Passthru]
  43. /w8= 12 -> 12: |--> Leaf: [FigSimpleAlternateFilter <VideoLayoutPreferenceDisc:0x6000016f33a0> priority:880 lowestplayable:Passthru]
  44. /w8= 12 -> 12: [FigHDCPAlternateFilter <HDCP: 0x600001dad1d0> priority: 879 hdcp0:Unknown hdcp1:Unknown]
  45. /w8= 12 -> 12: [PassthroughFilter <EligibleCandidatesForPlaybackPassThrough: 0x600001c76da0> priority: 877 Total Alternate 12]
  46. /w8= 12 -> 12: [FigSimpleAlternateFilter <PreferVideoCodecsWithHardwareDecode:0x6000016f3480> priority:876 context:<CFData 1 bytes 00>]
  47. /w8= 12 -> 12: [FigSimpleAlternateFilter <LowPowerMode:0x6000016232c0> priority:850]
  48. default 12:14:48.901570-0700 Music ACCPEDecoderWrapper.cpp:319 (0x600000654790) Input format: 2 ch, 48000 Hz, qaac (0x00000000) 0 bits/channel, 0 bytes/packet, 1024 frames/packet, 0 bytes/frame
  49. default 12:14:48.901590-0700 Music ACCPEDecoderWrapper.cpp:322 (0x600000654790) Output format: 2 ch, 48000 Hz, Float32, deinterleaved
  50. default 12:14:48.902112-0700 Music ACMP4AACBaseDecoder.cpp:310 (0x12a8d8600) Input format: 2 ch, 48000 Hz, aac (0x00000000) 0 bits/channel, 0 bytes/packet, 1024 frames/packet, 0 bytes/frame
  51. default 12:14:48.902131-0700 Music ACMP4AACBaseDecoder.cpp:313 (0x12a8d8600) Output format: 2 ch, 48000 Hz, Float32, deinterleaved
  52. default 12:14:48.905396-0700 Music ACCPEDecoderWrapper.cpp:319 (0x600000654790) Input format: 2 ch, 48000 Hz, qaac (0x00000000) 0 bits/channel, 0 bytes/packet, 1024 frames/packet, 0 bytes/frame
  53. default 12:14:48.905412-0700 Music ACCPEDecoderWrapper.cpp:322 (0x600000654790) Output format: 2 ch, 48000 Hz, Float32, deinterleaved
  54. default 12:14:48.905483-0700 Music ACMP4AACBaseDecoder.cpp:310 (0x12a8d9a00) Input format: 2 ch, 48000 Hz, aac (0x00000000) 0 bits/channel, 0 bytes/packet, 1024 frames/packet, 0 bytes/frame
  55. default 12:14:48.905503-0700 Music ACMP4AACBaseDecoder.cpp:313 (0x12a8d9a00) Output format: 2 ch, 48000 Hz, Float32, deinterleaved
  56. default 12:14:48.905853-0700 Music AudioQueueObject.cpp:9238 SetCodecLoudnessParameters: LoudnessManager::GetSettings() returned -66628 (....): not applying loudness defaults
  57. default 12:14:48.906877-0700 Music AudioQueueObject.cpp:9238 SetCodecLoudnessParameters: LoudnessManager::GetSettings() returned -66628 (....): not applying loudness defaults
  58. default 12:14:49.076528-0700 bluetoothd BTLQ set Link Quality Data codec to 2
  59. default 12:14:51.610205-0700 Music <<HLS-FASB>> fasb_log: [0x600000c0c500:I/YN.29]
  60. [FigAlternateFilterMonitorForNotification<0x60000136fa80> "PowerStateChanged" state:1 currentFilter:[FigAlternateFilter <LowPowerMode:0x60000156cb60> priority:850]]
  61. [FigAlternateFilterMonitorForNotification<0x600001360700> "StreamingRestrictions_RestrictionsChanged" state:0 currentFilter:(null)]
  62. [FigAlternateFilterMonitorForPlaybackBitrate lastMeasuredBitrate:0 ]
  63. }
  64. Filters:
  65. {
  66. To decode base64 encoded filter output, run:
  67. % B64="ENCODEDVALUE";python3 -c"import base64,sys;n=int.from_bytes(base64.b64decode(sys.argv[1]),'little');print([i for i in range(0,n.bit_length())if 0!=(n&(1<<i))])" $B64
  68. /w8= 12 -> 12: [FigSimpleAlternateFilter <AllowedCPC:0x6000015ec310> priority:1000 systemCPC:0x3]
  69. /w8= 12 -> 12: [FigSimpleAlternateFilter <MediaValidation:0x6000015eed10> priority:1000 allowUnknownCodecs:NO]
  70. default 12:14:51.610235-0700 Music <<HLS-FASB>> fasb_log: [0x600000c0c500:I/YN.29]
  71. [FigAlternateFilterTreeFilter <VideoLayoutPreference:0x60000267ae40> priority:880]
  72. /w8= 12 -> 12: |--> Leaf: [FigSimpleAlternateFilter <VideoLayoutPreferenceMain:0x6000015ec3f0> priority:880 lowestplayable:Passthru]
  73. /w8= 12 -> 12: |--> Leaf: [FigSimpleAlternateFilter <VideoLayoutPreferenceDisc:0x6000015ecfc0> priority:880 lowestplayable:Passthru]
  74. /w8= 12 -> 12: [FigHDCPAlternateFilter <HDCP: 0x600001d19900> priority: 879 hdcp0:Unknown hdcp1:Unknown]
  75. /w8= 12 -> 12: [PassthroughFilter <EligibleCandidatesForPlaybackPassThrough: 0x600001d32210> priority: 877 Total Alternate 12]
  76. /w8= 12 -> 12: [FigSimpleAlternateFilter <PreferVideoCodecsWithHardwareDecode:0x6000015ed3b0> priority:876 context:<CFData 1 bytes 00>]
  77. /w8= 12 -> 12: [FigSimpleAlternateFilter <LowPowerMode:0x60000156cb60> priority:850]
  78.  
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