iOS AVAudioRecorder 录音频率、声道、位数配置 wav格式

iOS AVAudioRecorder 录音频率、声道、位数配置

#pragma mark 录音设置
- (void)setUP_VOICE_RECOARDER
{
NSError *error = nil;
audioSection = [AVAudioSession sharedInstance];
[audioSection setCategory:AVAudioSessionCategoryPlayAndRecord error:&error];
if (error) {
NSLog(@"录音配置错误:%@",error);
[self showBackAlertWith:error.description];
return;
} //16kHZ,单通道,16位,wav
//[NSNumber numberWithInt:AVAudioQualityHigh],AVEncoderAudioQualityKey,
NSMutableDictionary* recordSetting = [NSMutableDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithFloat:], AVSampleRateKey,
[NSNumber numberWithInt:kAudioFormatLinearPCM],AVFormatIDKey,
[NSNumber numberWithInt:], AVNumberOfChannelsKey,
[NSNumber numberWithInt:], AVLinearPCMBitDepthKey,
[NSNumber numberWithBool:NO],AVLinearPCMIsBigEndianKey,
[NSNumber numberWithBool:NO],AVLinearPCMIsFloatKey,
nil]; NSURL *recordedTmpFile = [NSURL fileURLWithPath:[[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:] stringByAppendingPathComponent: [NSString stringWithFormat: @"%.0f.%@", [NSDate timeIntervalSinceReferenceDate] * 1000.0, @"wav"]]]; //文件名的设置 voiceURL = recordedTmpFile;
voiceRecorder = [[AVAudioRecorder alloc] initWithURL:recordedTmpFile settings:recordSetting error:NULL];
NSLog(@"file : %@",recordedTmpFile);
voiceRecorder.delegate = self;
voiceRecorder.meteringEnabled = YES;
[voiceRecorder prepareToRecord]; }
上一篇:Creating Icon Overlay Handlers / 创建图标标记 Handlers (翻译自MSDN) / VC++, Windows, DLL, ATL, COM


下一篇:UVA 10559 Blocks(区间DP&&递推)