#pragma mark ===== 录制音频初始化
-(void)saveAudio{
AVAudioSession* session = [AVAudioSession sharedInstance];
[sessionsetCategory:AVAudioSessionCategoryPlayAndRecord error:nil];
[sessionsetActive:YESerror:nil];
//录音设置
NSMutableDictionary * recordSetting = [[NSMutableDictionary alloc]init];
//设置录音格式
[recordSetting setValue:[NSNumber numberWithInt:kAudioFormatLinearPCM] forKey:AVFormatIDKey];
//设置录音采样率（HZ）
[recordSetting setValue:[NSNumber numberWithFloat:16000] forKey:AVSampleRateKey];
//录音通道数
[recordSetting setValue:[NSNumber numberWithInt:2] forKey:AVNumberOfChannelsKey];
//线性采样位数
[recordSetting setValue:[NSNumber numberWithInt:8] forKey:AVLinearPCMBitDepthKey];
//录音的质量
[recordSetting setValue:[NSNumber numberWithInt:AVAudioQualityHigh] forKey:AVEncoderAudioQualityKey];
//获取沙盒路径 作为存储录音文件的路径
NSString * strUrl = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)firstObject];
、// 创建url
NSURL * url = [NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/voice.wav",strUrl]];
self.urlPlay= url;
NSError* error ;
//初始化AVAudioRecorder
self.recorder= [[AVAudioRecorder alloc]initWithURL:url settings:recordSetting error:&error];
//开启音量监测
self.recorder.meteringEnabled = YES;
self.recorder.delegate=self;
if(error){
NSLog(@"创建录音对象时发生错误，错误信息：%@",error.localizedDescription);
}
}
#pragma mark ===== 开始录制音频
-(void)startSaveAvdio{
if([self.recorder prepareToRecord]){
//开始
[self.recorderrecord];
NSLog(@"开始录音");
self.avdioTimer= [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(updatePlayTimerValue) userInfo:nil repeats:YES];
[self.avdioTimerfire];
}
}
#pragma mark ===== 结束录制音频
-(void)stopSaveAvdio
{
// 获取当前录音时长
floatvoiceSize =self.recorder.currentTime;
NSLog(@"录音时长 = %f",voiceSize);
//
if(voiceSize <15){
[self.recorderdeleteRecording];
UIAlertView* altView = [[UIAlertViewalloc]initWithTitle:nilmessage:@"时长小于15秒，重新录制"delegate:selfcancelButtonTitle:nilotherButtonTitles:nil];
[altViewshow];
[selfperformSelector:@selector(performDismiss:)withObject:altViewafterDelay:1.5];
}elseif(voiceSize >60){
[self.recorderdeleteRecording];
UIAlertView * altView = [[UIAlertView alloc]initWithTitle:nil message:@"时长大于1分钟，重新录制" delegate:self cancelButtonTitle:nil otherButtonTitles: nil];
[altViewshow];
[selfperformSelector:@selector(performDismiss:)withObject:altViewafterDelay:1.5];
}
else
{
NSArray*dataArray=[selfgetAllFile];
NSLog(@"======dataArray=======%@",dataArray);
if(dataArray.count>0) {
if(self.addBlackAvdioBlock) {
self.addBlackAvdioBlock(dataArray);
}
[self.navigationController popViewControllerAnimated:YES];
}
}
//此处需要恢复设置回放标志，否则会导致其它播放声音也会变小
AVAudioSession *session = [AVAudioSession sharedInstance];
[sessionsetCategory:AVAudioSessionCategoryPlayback error:nil];
[self.recorderstop];
[self.avdioTimer invalidate];
self.avdioTimer = nil ;
NSLog(@"结束录制音频");
}