聲音並非在設備

工作在我的應用我寫備案聲音並非在設備

NSArray *filePaths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES); 
    NSString *recordingDirectory = [filePaths objectAtIndex: 0]; 
    NSString *resourcePath = [recordingDirectory stringByAppendingString:@"/sound.caf"]; 
    self.soundFileURL = [NSURL fileURLWithPath:resourcePath]; 


AVAudioSession *audioSession = [AVAudioSession sharedInstance]; 

audioSession.delegate = self; 

[audioSession setActive: YES error: nil]; 

[[AVAudioSession sharedInstance] setCategory : AVAudioSessionCategoryRecorderror: nil]; 

NSDictionary *recordSettings = 

[[NSDictionary alloc] initWithObjectsAndKeys: 

    [NSNumber numberWithFloat: 44100.0],     AVSampleRateKey, 

    [NSNumber numberWithInt: kAudioFormatAppleLossless], AVFormatIDKey, 

    [NSNumber numberWithInt: 1],       AVNumberOfChannelsKey, 

    [NSNumber numberWithInt: AVAudioQualityMax],   AVEncoderAudioQualityKey, 

    nil]; 


AVAudioRecorder *newRecorder = [[AVAudioRecorder alloc] initWithURL: soundFileURL settings: recordSettings error: nil]; 

[recordSettings release]; 

self.soundRecorder = newRecorder; 

[newRecorder release]; 



soundRecorder.delegate = self; 

[soundRecorder prepareToRecord]; 

[soundRecorder record]; 



recording = YES;

我寫停止錄製

[soundRecorder stop]; 

recording = NO; 

self.soundRecorder = nil;

我寫的播放按鈕

AVAudioPlayer *newPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL: self.soundFileURL error: nil]; 

[fileURL release]; 

self.player = newPlayer; 

[newPlayer release]; 

[player prepareToPlay]; 

[player setDelegate: self]; 

    [button setTitle : @"Pause"forState: UIControlStateHighlighted]; 

    [button setTitle : @"Pause"forState: UIControlStateNormal]; 

    [player play];

在iPhone模擬器一切正常

我記錄然後st然後玩，一切正常。

但在我的iPhone設備上沒有聲音。任何幫助將大大惠及

來源

2009-08-06 diana

我有一個類似的問題。然後我設置AudioSession類別進行播放：

[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:nil];

希望這會有所幫助。

來源

2009-09-26 21:00:04 emp

聲音並非在設備

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