我正在使用设备麦克风进行语音识别，同时连接到蓝牙扬声器。这在大多数情况下都有效，但在一些设备中我遇到了一些失败。
经过几天的调试，我能找到的最好的是以下日志差异：
失败日志：
V/audio_hw_primary( 270): start_input_stream: enter: usecase(7)
V/voice ( 270): voice_check_and_set_incall_rec_usecase: voice call not active
V/audio_hw_primary( 270): start_input_stream: usecase(7)
D/PreProcess( 270): new SamsungRecord
D/PreProcess( 270): new NS
I/samsungRecord( 270): [samsungrecord] SamsungRecInit
I/samsungRecord( 270): [samsungrecordMIC]Use HardCoding Values
E/samsungRecord( 270): miccalib file can't created. (/data/snd/miccalib.txt)
I/samsungRecord( 270): 1
D/SamsungRecord_NS( 270): [SamsungRecord_NS] Init SR 8000
D/SamsungRecord_NS( 270): [SamsungRecord_NS] getLevel inputsource 6, ret_level 3
V/audio_hw_primary( 270): select_devices: ENTER
V/audio_hw_primary( 270): select_devices: usecase(normal)
V/audio_hw_primary( 270): select_devices: usecase(PCM_CAPTURE)
V/msm8974_platform( 270): platform_get_input_snd_device: enter: out_device(0) in_device(0x8)
V/msm8974_platform( 270): get_INPUT_snd_device: AUDIO_MODE_IN_CALL
E/msm8974_platform( 270): platform_get_input_snd_device: No output device set for voice call
V/msm8974_platform( 270): platform_get_input_snd_device: exit: in_snd_device(none)
V/audio_hw_primary( 270): start_input_stream: Opening PCM device card_id(0) device_id(0), channels 1
E/audio_hw_primary( 270): start_input_stream: cannot open device '/dev/snd/pcmC0D0c': Invalid argument
V/audio_hw_primary( 270): stop_input_stream: enter: usecase(7: audio-record)
V/audio_hw_primary( 270): disable_audio_route: enter: usecase(7)
V/audio_hw_primary( 270): disable_audio_route: reset mixer path: audio-record
D/audio_route( 270): ++++ audio_route_update_mixer ==============
D/audio_route( 270): ------ audio_route_update_mixer ==============
V/audio_hw_primary( 270): disable_audio_route: exit
E/audio_hw_primary( 270): disable_snd_device: Invalid sound device 0
V/audio_hw_primary( 270): stop_input_stream: exit: status(0)
D/audio_hw_primary( 270): start_input_stream: exit: status(-5)
V/audio_hw_primary( 270): in_standby: enter
V/audio_hw_primary( 270): in_standby: exit: status(0)
V/audio_hw_primary( 270): in_read: read failed - sleeping for buffer duration
成功记录：
V/audio_hw_primary( 387): start_input_stream: enter: usecase(7)
V/voice ( 387): voice_check_and_set_incall_rec_usecase: voice call not active
V/audio_hw_primary( 387): start_input_stream: usecase(7)
D/PreProcess( 387): new SamsungRecord
D/PreProcess( 387): new NS
I/samsungRecord( 387): [samsungrecord] SamsungRecInit
I/samsungRecord( 387): [samsungrecordMIC]Use HardCoding Values
E/samsungRecord( 387): miccalib file can't created. (/data/snd/miccalib.txt)
I/samsungRecord( 387): 1
D/SamsungRecord_NS( 387): [SamsungRecord_NS] Init SR 8000
D/SamsungRecord_NS( 387): [SamsungRecord_NS] getLevel inputsource 6, ret_level 3
V/audio_hw_primary( 387): select_devices: ENTER
V/audio_hw_primary( 387): select_devices: usecase(normal)
V/audio_hw_primary( 387): select_devices: usecase(PCM_CAPTURE)
V/msm8974_platform( 387): platform_get_input_snd_device: enter: out_device(0) in_device(0x8)
V/msm8974_platform( 387): get_INPUT_snd_device: check by Input_source(6)
V/msm8974_platform( 387): platform_get_input_snd_device_by_source: enter: out_device(0) in_device(0x8)
V/msm8974_platform( 387): get_INPUT_snd_device: AUDIO_SOURCE_VOICE_RECOGNITION
V/msm8974_platform( 387): platform_get_input_snd_device: exit: in_snd_device(dummy)
D/audio_hw_primary( 387): select_devices: out_snd_device(0: dummy)
D/audio_hw_primary( 387): select_devices: in_snd_device(124: dummy)
D/ACDB-LOADER( 387): ACDB -> send_audio_cal, acdb_id = 49, path = 1
D/ACDB-LOADER( 387): ACDB -> send_adm_topology
D/ACDB-LOADER( 387): ACDB -> ACDB_CMD_GET_AUDPROC_COMMON_TOPOLOGY_ID
D/ACDB-LOADER( 387): ACDB -> send_audtable
D/ACDB-LOADER( 387): ACDB -> ACDB_CMD_GET_AUDPROC_COMMON_TABLE
D/ACDB-LOADER( 387): ACDB -> AUDIO_SET_AUDPROC_CAL
D/ACDB-LOADER( 387): ACDB -> send_audvoltable
D/ACDB-LOADER( 387): ACDB -> ACDB_CMD_GET_AUDPROC_GAIN_DEP_STEP_TABLE
D/ ( 387): Failed to fetch the lookup information of the device 00000031
E/ACDB-LOADER( 387): Error: ACDB AudProc vol returned = -19
D/ACDB-LOADER( 387): ACDB -> AUDIO_SET_AUDPROC_VOL_CAL
D/ACDB-LOADER( 387): ACDB -> AUDIO_SET_AFE_CAL
V/audio_hw_primary( 387): enable_snd_device: snd_device(124: dummy, dummy)
D/audio_route( 387): ++++ audio_route_update_mixer ==============
D/audio_route( 387): ------ audio_route_update_mixer ==============
V/audio_hw_primary( 387): enable_audio_route: enter: usecase(7)
V/audio_hw_primary( 387): enable_audio_route: apply mixer path: audio-record bt-sco
D/audio_route( 387): ++++ audio_route_update_mixer ==============
D/audio_route( 387): Setting mixer control: MultiMedia1 Mixer AUX_PCM_UL_TX, value: 1
D/audio_route( 387): ------ audio_route_update_mixer ==============
V/audio_hw_primary( 387): enable_audio_route: exit
V/audio_hw_primary( 387): start_input_stream: Opening PCM device card_id(0) device_id(0), channels 1
V/xappmedia.sdk.service.GoogleSpeechRecognizer(18053): Adjusted volume level: 0.0. RMSDB: -2.12
E/Global isDisableMicrophone(18053): isDisableMixrophone:true
E/MusicService(18053): XappAds VolumeLevel Callback OnRmsChanged: rmsDb: -2.12 adjustFol: 0.0
E/NowPlayingFragment OnReceive:(18053): onReceive 1
E/NowPlayingFragment OnReceive:(18053): Mic Animation 1
E/NowPlayingFragment OnReceive:(18053): Volume Change 1
E/NowPlayingFragment OnReceive:(18053): Volume Change 2: Mic Size: 300.0
E/NowPlayingFragment OnReceive:(18053): Volume Change 2: VOl: 0.0
E/NowPlayingFragment OnReceive:(18053): Draw Mic 1
V/audio_hw_primary( 387): start_input_stream: exit
在我看来，它无法从麦克风上打开输入流。我无法找到相关信息，但我认为这可能与我如何使用音频焦点有关。有人有任何见解吗？