我面临 AvAudioRecorder 的问题，在随机检查时创建损坏的文件。
它创建长度为 24kb 的文件，这并非一直发生，但随机找到的文件已损坏。
我还检查了下面的链接以获取参考，因为我有类似的问题，但它对我不起作用。
AVAudioRecorder Record 方法随机返回 NO
使用 AVAudioRecorder 看似随机的文件损坏（有时无法播放文件） - iOS
下面是完整的功能代码。
-(IBAction)btnRecordClick:(id)sender
{
[PlayingTimer invalidate];
PlayingTimer = nil;
if(isPaused==NO)
{
AVAudioSession *audioSession = [AVAudioSession sharedInstance];
NSError *err = nil;
[audioSession setCategory :AVAudioSessionCategoryPlayAndRecord error:&err];
if(err)
{
// NSLog(@"audioSession: %@ %d %@", [err domain], [err code], [[err userInfo] description]);
return;
}
[audioSession setActive:YES error:&err];
err = nil;
if(err)
{
// NSLog(@"audioSession: %@ %d %@", [err domain], [err code], [[err userInfo] description]);
return;
}
//*******Working well with .wav,.caf and .mp4 files *****************
recordSetting = [[NSMutableDictionary alloc] init];
//this is for .wav and .caf file
//this is for .mp4 file for iPhone 3GS/iPhone 4
[recordSetting setValue: [NSNumber numberWithInt:kAudioFormatMPEG4AAC] forKey:AVFormatIDKey];
[recordSetting setValue: [NSNumber numberWithFloat:44100.0] forKey:AVSampleRateKey];
[recordSetting setValue: [NSNumber numberWithInt: 2] forKey:AVNumberOfChannelsKey];
[recordSetting setValue:[NSNumber numberWithInt:16] forKey:AVLinearPCMBitDepthKey];
[recordSetting setValue:[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsBigEndianKey];
[recordSetting setValue:[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsFloatKey];
self.strMessage = @"";
self.strMessageType = [NSString stringWithFormat:@"Audio Message"];
self.strFileName = [NSString stringWithFormat:@"%@.mp4", [_globalmodel stringUniqueID]];
// NSLog(@"FileName :%@",self.strFileName);
self.strUniqueRef = [NSString stringWithFormat:@"%@",[_globalmodel stringUniqueID]];
NSString *soundPath;//=[NSString alloc];
soundPath = [NSString stringWithFormat:@"%@/%@", DOCUMENTS_FOLDER,self.strFileName] ;
NSURL *url1 = [NSURL fileURLWithPath:soundPath];
// NSLog(@"Recording Path:%@",url1);
err = nil;
recorder = [[ AVAudioRecorder alloc] initWithURL:url1 settings:recordSetting error:&err];
if(!recorder)
{
// NSLog(@"recorder: %@ %d %@", [err domain], [err code], [[err userInfo] description]);
UIAlertView *alert =[[UIAlertView alloc] initWithTitle: @"My Easy Media"
message: @"The Recording format is not supported on your device!"
delegate: nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[alert show];
[alert release];
return;
}
//prepare to record
[recorder setDelegate:self];
[recorder prepareToRecord];
recorder.meteringEnabled = YES;
BOOL audioHWAvailable = audioSession.inputIsAvailable;
if (! audioHWAvailable)
{
UIAlertView *cantRecordAlert = [[UIAlertView alloc] initWithTitle: @"Warning"
message: @"Audio input hardware not available"
delegate: nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[cantRecordAlert show];
[cantRecordAlert release];
return;
}
// start recording
[recorder record];
_isRecordingStarted = YES;
// SET TIMER // START TIMER
timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(EndRecording:) userInfo:nil repeats:YES];
// END TO SETTING TIMER
timerDisplayRight.hidden = NO;
timerDisplayLeft.hidden = NO;
timerDisplayRight.text = [NSString stringWithFormat:@"%02d:%02d", intMimute,-- intSecond];
timerDisplayLeft.text = [NSString stringWithFormat:@"00:00"];
progressView.progress = 0.0;
}
else
{
isPaused=NO;
[recorder record];
_isRecordingStarted = YES;
[btnReview setEnabled:NO];
timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(EndRecording:) userInfo:nil repeats:YES];
timerDisplayRight.hidden = NO;
timerDisplayLeft.hidden = NO;
}
timerDisplayRight.text = [NSString stringWithFormat:@"%02d:%02d", intMimute,-- intSecond];
}
-(IBAction)btnPauseClick:(id)sender
{
// NSLog(@"Pause Button of ActionSheet Clicked");
[timer invalidate];
timer = nil;
isPaused=YES;
[recorder pause];
[btnPause setEnabled:NO];
[btnRecord setEnabled:YES];
[btnStop setEnabled:YES];
}
-(IBAction)btnStopClick:(id)sender
{
// NSLog(@"Stop Button of ActionSheet Clicked");
[recorder stop];
progressView.progress = 1.0;
// NSLog(@"Total Recording Secomd : %d", totalRecordingSecond);
finalRecordingSecond = totalRecordingSecond;
[btnStop setEnabled:NO];
[btnReview setEnabled:YES];
[btnRecord setEnabled:YES];
[btnPause setEnabled:NO];
timerDisplayRight.text = [NSString stringWithFormat:@"%02d:%02d", (totalRecordingSecond/60), (totalRecordingSecond % 60) ];
timerDisplayLeft.text = [NSString stringWithFormat:@"00:00"];
[timer invalidate];
timer = nil;
// REINITIALIZE TIMER VARIABLES...
intMimute = 5;
intTotalTime = (60 * intMimute);
intSecond = intTotalTime / intMimute;
intMimute--;
// REINITIALIZE TIMER VARIABLES...
_isRecordingStarted = NO;
}
请帮忙。一旦我开始录制并在大约 10 到 15 秒后，点击停止。