如何直接从iOS录制音频

时间:2015-04-21 01:41:44

标签: ios core-audio avaudiorecorder audiounit

我的应用程序涉及创建和录制您在应用程序中发出的声音。我尝试了多种录音方式,如AVAudioRecord。到目前为止,这些只提供了通过麦克风录制的方式,但我想记录应用程序内的实际声音。我到底如何实现这一目标。我已经在这几天了,有人可以帮助我,谢谢!

我还在我的应用程序中使用Audio unit进行播放。

这是我到目前为止使用的AVAudioRecord

_audioController = [[AEAudioController alloc] initWithAudioDescription:[AEAudioController nonInterleavedFloatStereoAudioDescription] inputEnabled:YES];

- (void)beginRecording {
    // Init recorder
    self.recorder = [[AERecorder alloc] initWithAudioController:_audioController];
    NSString *documentsFolder = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)
                                 objectAtIndex:0];
    NSString *filePath = [documentsFolder stringByAppendingPathComponent:@"Myaudio.aiff"];

    NSLog(@"%@", filePath);
    // Start the recording process
    NSError *error = NULL;

    if ( ![_recorder beginRecordingToFileAtPath:filePath
                                       fileType:kAudioFileAIFFType
                                          error:&error] ) {
        // Report error
        return;
    }
    // Receive both audio input and audio output. Note that if you're using
    // AEPlaythroughChannel, mentioned above, you may not need to receive the input again.
    [_audioController addInputReceiver:_recorder];
    [_audioController addOutputReceiver:_recorder];

}

0 个答案:

没有答案