我正在使用Expo,尝试使用webm输出格式(Expo.Audio.RECORDING_OPTION_ANDROID_OUTPUT_FORMAT_WEBM
)在Android上录制。我的问题是,我已经尝试了所有不同的编码器,但似乎都无法正常工作。我原本希望vorbis编码器可以正常工作(Expo.Audio.RECORDING_OPTION_ANDROID_AUDIO_ENCODER_VORBIS
),但我总是收到一个异常。
{
"tryLoc": "root",
"completion": {
"type": "throw",
"arg": {
"framesToPop": 1,
"code": "E_AUDIO_RECORDING",
"message": "Start encountered an error: recording not started",
"stack": "Error: Start encountered an error: recording not started\n at createErrorFromErrorData (blob:http://172.16.6.80:19001/96c6e3c7-f483-40d9-a3ad-7a7114468a07:2297:17)\n at blob:http://172.16.6.80:19001/96c6e3c7-f483-40d9-a3ad-7a7114468a07:2249:27\n at MessageQueue.__invokeCallback (blob:http://172.16.6.80:19001/96c6e3c7-f483-40d9-a3ad-7a7114468a07:2691:18)\n at blob:http://172.16.6.80:19001/96c6e3c7-f483-40d9-a3ad-7a7114468a07:2436:18\n at MessageQueue.__guardSafe (blob:http://172.16.6.80:19001/96c6e3c7-f483-40d9-a3ad-7a7114468a07:2604:11)\n at MessageQueue.invokeCallbackAndReturnFlushedQueue (blob:http://172.16.6.80:19001/96c6e3c7-f483-40d9-a3ad-7a7114468a07:2435:14)\n at http://172.16.6.80:19001/debugger-ui/debuggerWorker.js:72:58"
}
}
}
这是我正在尝试的配置:
const recording = new Audio.Recording();
debugger;
await recording.prepareToRecordAsync({
android: {
extension: '.webm',
outputFormat: Audio.RECORDING_OPTION_ANDROID_OUTPUT_FORMAT_WEBM,
audioEncoder: Audio.RECORDING_OPTION_ANDROID_AUDIO_ENCODER_VORBIS,
sampleRate: 44100,
numberOfChannels: 2,
bitRate: 128000
},
ios: {
extension: '.wav',
audioQuality: Audio.RECORDING_OPTION_IOS_AUDIO_QUALITY_MAX,
sampleRate: 44100,
numberOfChannels: 2,
bitRate: 128000,
linearPCMBitDepth: 16,
linearPCMIsBigEndian: false,
linearPCMIsFloat: false,
},
});
有没有关于为什么会发生这种情况以及我需要使用哪种适当的编码器的想法?
const { status } = await Expo.Permissions.askAsync(Expo.Permissions.AUDIO_RECORDING);
如果用户授权录音,则常量status
将具有值“granted”。 - shimataioutputFormat: Audio.RECORDING_OPTION_ANDROID_OUTPUT_FORMAT_AAC_ADTS
和audioEncoder: Audio.RECORDING_OPTION_ANDROID_AUDIO_ENCODER_AAC
进行录制,但最好能够使用 webm 格式。 - Stavros Zavrakas