HarmonyOS鸿蒙Next中音频录制AudioCapturer.on('readData',xxx)报错

struct AudioCapturerTestPage {

audioStreamInfo: audio.AudioStreamInfo = { samplingRate: audio.AudioSamplingRate.SAMPLE_RATE_48000, // 采样率 channels: audio.AudioChannel.CHANNEL_2, // 通道 sampleFormat: audio.AudioSampleFormat.SAMPLE_FORMAT_S16LE, // 采样格式 encodingType: audio.AudioEncodingType.ENCODING_TYPE_RAW // 编码格式 }; audioCapturerInfo: audio.AudioCapturerInfo = { source: audio.SourceType.SOURCE_TYPE_MIC, capturerFlags: 0 }; audioCapturer: audio.AudioCapturer | null = null audioRendererInfo: audio.AudioRendererInfo = { usage: audio.StreamUsage.STREAM_USAGE_VOICE_COMMUNICATION, rendererFlags: 0 }; filePath: string = ‘’

// 获取 AudioCapturer async getAudioCapturer() { if (this.audioCapturer) { return this.audioCapturer } // 1. 创建 AudioCapturer，配置音频采集参数 const audioCapturer = await audio.createAudioCapturer({ streamInfo: this.audioStreamInfo, capturerInfo: this.audioCapturerInfo }) this.audioCapturer = audioCapturer return audioCapturer }

// 开始录音 async startRecorder() { try { // 1. 创建 AudioCapturer，配置音频采集参数 const audioCapturer = await audio.createAudioCapturer({ streamInfo: this.audioStreamInfo, capturerInfo: this.audioCapturerInfo })

  // 2. 调用on('readData')方法，订阅监听音频数据读入回调
  // audioCapturer
  // 2.1 准备文件，用于写入录音
  const context = getContext()
  // cacheDir    临时文件目录
  // filesDir    持久化文件目录
  const filePath = context.filesDir + '/' + Date.now() + '.wav'
  // 设置成全局
  this.filePath = filePath
  // 打开文件的模式为 fileIo.OpenMode.READ_WRITE 可读可写
  const file = fileIo.openSync(filePath, fileIo.OpenMode.READ_WRITE | fileIo.OpenMode.CREATE)
  // 累加偏移量
  let bufferSize: number = 0;
  // 2.2 注册(订阅)事件，监听音频数据读入
  audioCapturer.on('readData', (buffer) => {
    // writeSync 写文件，设置偏移量，保留原本的数据不被覆盖
    fileIo.writeSync(file.fd, buffer, { offset: bufferSize, length: buffer.byteLength })
    // 累加偏移量
    bufferSize += buffer.byteLength
  })

  // 3. 开始录音
  audioCapturer.start()

} catch (error) {
  AlertDialog.show({ message: JSON.stringify(error.message, null, 2) })
}

}

//停止录音 async stopRecorder() { const audioCapturer = await this.getAudioCapturer() await audioCapturer.stop() audioCapturer.release() this.audioCapturer = null //清空 }

//播放录音 async startRender() { const audioRenderer = await audio.createAudioRenderer({ streamInfo: this.audioStreamInfo, rendererInfo: this.audioRendererInfo }) let bufferSize: number = 0 const file = fileIo.openSync(this.filePath) //调用on audioRenderer.on(‘writeData’, buffer => { fileIo.readSync(file.fd, buffer, { offset: bufferSize, length: buffer.byteLength }) bufferSize += buffer.byteLength }) audioRenderer.start() }

build() { Navigation() { Scroll() { Column({ space: 10 }) { Button(‘开启权限’) .onClick(() => { audioCapturerManager.requestPermissions() }) Button(‘开始录音’) .onClick(() => { this.startRecorder() }) Button(‘停止录音’) .onClick(() => { this.stopRecorder() }) Button(‘播放录音’) .onClick(() => { this.startRender() }) } .constraintSize({ minHeight: ‘100%’ }) } .width(‘100%’) .height(‘100%’) } .title(’’) .titleMode(NavigationTitleMode.Mini) } }

你好呀！请问你的问题解决了吗，我也遇到了类似的问题，我是加了readData的监听之后，start就不断报错。