[英]For Android, what is the best combination of Output Format and Audio Encoder to record high quality speech?
I have found so far that MPEG_4 and THREE_GPP work as formats.到目前为止,我发现 MPEG_4 和 THREE_GPP 可以作为格式工作。 OGG does not work at all.
OGG 根本不工作。 THREE_GPP fails with AMR_WB (wide band).
THREE_GPP 因 AMR_WB(宽带)而失败。 "Does not work" / "fails" means my app crashes in the start() function from the code fragment below, as shown by LogCat from the Studio.
“不起作用”/“失败”意味着我的应用程序在下面的代码片段的 start() function 中崩溃,如 Studio 中的 LogCat 所示。
private fun startRecording() {
recorder = MediaRecorder().apply {
setAudioSource(MediaRecorder.AudioSource.MIC)
setOutputFormat(MediaRecorder.OutputFormat.MPEG_4) //OGG fails
setOutputFile(fileName)
setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT) // VORBIS fails with format OGG
try {
prepare()
} catch (e: IOException) {
Log.e(LOG_TAG, "prepare() failed")
}
start() // failures occur here
}
}
Any recommendations would be appreciated.任何建议将不胜感激。 Please note the speech in the audio stream will need to be converted to text on the Android device.
请注意音频 stream 中的语音需要在 Android 设备上转换为文本。
I have found so far that MPEG_4 and THREE_GPP work as formats.到目前为止,我发现 MPEG_4 和 THREE_GPP 可以作为格式工作。 OGG does not work at all.
OGG 根本不工作。 THREE_GPP fails with AMR_WB (wide band).
THREE_GPP 因 AMR_WB(宽带)而失败。 "Does not work" / "fails" means my app crashes in the start() function from the code fragment below, as shown by LogCat from the Studio.
“不起作用”/“失败”意味着我的应用程序在下面的代码片段的 start() function 中崩溃,如 Studio 中的 LogCat 所示。
private fun startRecording() {
recorder = MediaRecorder().apply {
setAudioSource(MediaRecorder.AudioSource.MIC)
setOutputFormat(MediaRecorder.OutputFormat.MPEG_4) //OGG fails
setOutputFile(fileName)
setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT) // VORBIS fails with format OGG
try {
prepare()
} catch (e: IOException) {
Log.e(LOG_TAG, "prepare() failed")
}
start() // failures occur here
}
}
Any recommendations would be appreciated.任何建议将不胜感激。 Please note the speech in the audio stream will need to be converted to text on the Android device.
请注意音频 stream 中的语音需要在 Android 设备上转换为文本。
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