Question

是否有任何关于此的示例代码或教程？我发现AVAudioRecorder自WatchOS 4.0 https://developer.apple.com/documentation/avfoundation/avaudiorecorder开始受支持。但是，当我尝试使用它时-它记录了1秒钟，却没有实际声音（只是噪音）。

这是我的代码：

let audioURL = self.getRecordedFileURL()
print(audioURL.absoluteString)

let settings = [
  AVFormatIDKey: Int(kAudioFormatMPEG4AAC),
  AVEncoderAudioQualityKey: AVAudioQuality.high.rawValue
]

do {
  recorder = try AVAudioRecorder(url: audioURL, settings: settings)
  recorder?.delegate = self
  recorder?.record()
} catch {
  finishRecording(success: false)
}

还可以在这里使用AudioSession吗？如果是，是否需要requestRecordPermission以及如何处理？谢谢您的帮助！

Answer 1

此作品有效：

AVAudioEngine

别忘了将let recordingName = "audio.m4a" let dirPath = getDirectory() let pathArray = [dirPath, recordingName] guard let filePath = URL(string: pathArray.joined(separator: "/")) else { return } let settings = [AVFormatIDKey: Int(kAudioFormatMPEG4AAC), AVSampleRateKey:12000, AVNumberOfChannelsKey:1, AVEncoderAudioQualityKey: AVAudioQuality.high.rawValue ] //start recording do { audioRecorder = try AVAudioRecorder(url: filePath, settings: settings) audioRecorder.delegate = self audioRecorder.record() } catch { print("Recording Failed") } func getDirectory()-> String { let dirPath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0] return dirPath }添加到您的电话配套应用NSMicrophoneUsageDescription中。

通过AVAudioRecorder在WatchOS上录制音频

1 个答案: