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Canardoux / flutter_sound

Flutter plugin for sound. Audio recorder and player.
Mozilla Public License 2.0
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Error occurs when attempting to record audio via PCM #229

Closed DreamsInCS closed 4 years ago

DreamsInCS commented 4 years ago

Version of flutter_sound

flutter_sound: ^2.1.0

flutter doctor

Doctor summary (to see all details, run flutter doctor -v): [√] Flutter (Channel master, v1.15.4-pre.175, on Microsoft Windows [Version 10.0.18362.657], locale en-US)

[√] Android toolchain - develop for Android devices (Android SDK version 29.0.3) [√] Android Studio (version 3.5) [√] VS Code (version 1.42.1) [√] Connected device (1 available)

• No issues found!

Platforms you faced the error (IOS or Android or both?)

Android.

Expected behavior

Recorder properly records audio.

Actual behavior

No recording occurs. A RecorderRunningException is thrown.

Tested environment (Emulator? Real Device?)

Emulator.

Steps to reproduce the behavior

Set up the flutter_sound example. Select File as Media and PCM as Codec. Press the record button.

Larpoux commented 4 years ago

Actually, PCM recording is not supported, neither on Android nor in iOS. Probably we will do it in the future ... Please, refer to the encoder compatibility in the README

DreamsInCS commented 4 years ago

Actually, PCM recording is not supported, neither on Android nor in iOS. Probably we will do it in the future ... Please, refer to the encoder compatibility in the README

May I ask why the encoder is necessary in order to initiate a recording process with the audio format?

DreamsInCS commented 4 years ago

@Larpoux I also notice that via the console, a .wav file is produced, despite selecting the .aac codec to initiate recording with. May I ask why this is the case? If there is documentation on this process, may I be shown where the documentation is?

Larpoux commented 4 years ago

Do not try to record LINEAR-16, MP3 or PCM with flutter_sound. You will not success. We will improve the codec supported in the future. Probably the next encoder supported by flutter_sound will be OPUS on Android.

You can refer to the README to know which encoder are supported. If you need to know during runtime, you can use the function : isEncoderSupported()

Larpoux commented 4 years ago

@Larpoux I also notice that via the console, a .wav file is produced, despite selecting the .aac codec to initiate recording with.

You may name your files as you want. A file name has nothing to do with its contents. You are free to store your AAC record in toto.foo, toto.bla, toto.dummy or toto.wav.

But I do not recommend to use an extension *.wav to store an AAC record.It would be very confusing.

Larpoux commented 4 years ago

@hyochan : I suggest to close this issue. I think that Flauto is clean on this point.