Luckfox Pico Plus + MIC 咪头无法录制声音

• ezreal

  Posts: 15

  Joined: 2024-03-10 6:01

  2024-03-24 5:11

  我在plus的TP5: MIC1P、TP6: MIC0P分别连接了咪头的黑线负极和红线正极，如下图，

  

  并使用文档的命令进行测试，即

  rk_mpi_ai_test --sound_card_name=hw:0,0 --device_rate=16000 --device_ch=2 --out_rate=16000 --out_ch=2 --output=/tmp

  日志如下：

  

  这是文字版：

  # rk_mpi_ai_test --sound_card_name=hw:0,0 --device_rate=16000 --device_ch=2 --out_rate=16000 --out_ch=2 --output=/tmp
  cmd parse result:
  input file name : (null)
  output file name : /tmp
  loop count : 1
  channel number : 1
  open sound rate : 16000
  record data rate : 16000
  sound card channel : 2
  output channel : 2
  bit_width : 16
  frame_number : 4
  frame_length : 1024
  sound card name : hw:0,0
  device id : 0
  set volume : 100
  set mute : 0
  set track_mode : 0
  get volume : 0
  get mute : 0
  get track_mode : 0
  aed enable : 0
  bcd enable : 0
  buz enable : 0
  vqe gap duration (ms) : 16
  vqe enable : 0
  vqe config file : (null)
  dump algo pcm data : 0
  test mode : 0
  aenc file name : (null)
  input codec name : (null)
  rockit log path (null), log_size = 0, can use export rt_log_path=, export rt_log_size= change
  log_file = (nil)
  RTVersion 01:30:20-150 {dump :064} ---------------------------------------------------------
  RTVersion 01:30:20-151 {dump :065} rockit version: git-8cb4d25b8 Tue Feb 28 11:12:39 2023 +0800
  RTVersion 01:30:20-151 {dump :066} rockit building: built- 2023-02-28 15:23:19
  RTVersion 01:30:20-151 {dump :067} ---------------------------------------------------------
  (null) 01:30:20-151 {log_level_init :203}
  
  please use echo name=level > /tmp/rt_log_level set log level
  name: all cmpi mb sys vdec venc rgn vpss vgs tde avs wbc vo vi ai ao aenc adec
  log_level: 0 1 2 3 4 5 6
  
  rockit default level 4, can use export rt_log_level=x, x=0,1,2,3,4,5,6 change
  (null) 01:30:20-151 {read_log_level :093} text is all=4
  (null) 01:30:20-152 {read_log_level :095} module is all, log_level is 4
  (null) 01:30:20-159 {monitor_log_level :144} #Start monitor_log_level thread, arg:(nil)
  cmpi 01:30:20-165 {main :1295} start running loop count = 0
  RKAiChn 01:30:20-167 {setAedAttr :789} pstAedConfig = (nil), set mAedEnable = false
  RKAiChn 01:30:20-169 {setBcdAttr :852} pstBcdConfig = (nil), set mBcdEnable = false
  RKAiChn 01:30:20-171 {setBuzAttr :915} pstBuzConfig = (nil), set mBuzEnable = false
  RKAiChn 01:30:20-171 {setGbsAttr :979} pstGbsConfig = (nil), set mGbsEnable = false
  RKAiChn 01:30:20-171 {setVqeAttr :1045} pstVqeConfig = (nil), set mVqeEnable = false
  RKAiChn 01:30:20-171 {prepareGraph :221} check enabled - vqe:0 aed:0 bcd:0 buz:0 gbs:0
  RTFlowGraph 01:30:20-177 {setMaxInputStreamQ:287} ai: Illegal operation, no input port exists.
  RKAiChn 01:30:20-293 {setVqeEnable :1019} not support veq algo
  cmpi 01:30:20-297 {commandThread :829} test info : mute = 0, volume = 100
  cmpi 01:30:20-299 {saveFile :708} create file(/tmp/cap_out.pcm) succeed

  对于保存的pcm文件，我使用Audacity软件进行试听；此外，我使用以下脚本将pcm转换为wav文件，

  def pcm_to_wav(pcm_path, wav_path=None, channels=1, bits=16, sample_rate=16000):
  if wav_path is None:
  wav_path = os.path.splitext(pcm_path)[0] + ".wav"
  
  pcmf = open(pcm_path, 'rb')
  pcmdata = pcmf.read()
  pcmf.close()
  
  if bits % 8 != 0:
  raise ValueError("bits % 8 must == 0. now bits:" + str(bits))
  
  wavfile = wave.open(wav_path, 'wb')
  wavfile.setnchannels(channels)
  wavfile.setsampwidth(bits // 8)
  wavfile.setframerate(sample_rate)
  wavfile.writeframes(pcmdata)
  wavfile.close()
  
  print(f"converted .pcm to .wav successfully, and saved into {wav_path}.")

  但无论是pcm文件，还是wav文件，我播放后，都只听到10秒刺耳的蜂鸣声（不像是录制的声音）。
  
  我只想完成麦克风的录制功能？请问是哪里出问题了吗？

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