语音上传 语音录制 上传 播放按钮
[self.speakBtn addTarget:self action:@selector(speakClick:forEvent:) forControlEvents:UIControlEventAllTouchEvents];

pragma mark-录音

• (void)createRecord{
  _recorder = nil;
  NSString * url = NSTemporaryDirectory();
  url = [url stringByAppendingString:[NSString stringWithFormat:@"%f.wav", [[NSDate date] timeIntervalSince1970]]];
  // data = [NSData dataWithContentsOfURL:url];
  NSMutableDictionary * settings = @{}.mutableCopy;
  [settings setObject:[NSNumber numberWithFloat:8000.0] forKey:AVSampleRateKey];
  [settings setObject:[NSNumber numberWithInt: kAudioFormatLinearPCM] forKey:AVFormatIDKey];
  [settings setObject:@1 forKey:AVNumberOfChannelsKey];//设置成一个通道，iPnone只有一个麦克风，一个通道已经足够了
  [settings setObject:@16 forKey:AVLinearPCMBitDepthKey];//采样的位数
  self.audioRecorder = [[AVAudioRecorder alloc] initWithURL:[NSURL fileURLWithPath:url] settings:settings error:nil];
  self.audioRecorder.delegate = self;
  [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryRecord error:nil];
  self.audioRecorder.meteringEnabled = YES;

  BOOL success = [self.audioRecorder record];
  if (success) {
  NSLog(@"录音开始成功");
  }else{
  NSLog(@"录音开始失败");
  }
  // NSMutableDictionary recordSetting = [[NSMutableDictionary alloc]init];
  // //设置录音格式 AVFormatIDKey==kAudioFormatLinearPCM
  // [recordSetting setValue:[NSNumber numberWithInt:kAudioFormatMPEGLayer3] forKey:AVFormatIDKey];
  // //设置录音采样率(Hz) 如：AVSampleRateKey==8000/44100/96000（影响音频的质量）
  // [recordSetting setValue:[NSNumber numberWithFloat:44100] forKey:AVSampleRateKey];
  // //录音通道数 1 或 2
  // [recordSetting setValue:[NSNumber numberWithInt:1] forKey:AVNumberOfChannelsKey];
  // //线性采样位数 8、16、24、32
  // [recordSetting setValue:[NSNumber numberWithInt:16] forKey:AVLinearPCMBitDepthKey];
  // //录音的质量
  // [recordSetting setValue:[NSNumber numberWithInt:AVAudioQualityHigh] forKey:AVEncoderAudioQualityKey];
  // NSString path = [NSHomeDirectory() stringByAppendingPathComponent:@"tmp/aaa"];
  // NSURL* url = [NSURL fileURLWithPath:path];
  // data = [NSData dataWithContentsOfURL:url options:NSDataReadingMappedAlways error:nil];
  // data = [NSData dataWithContentsOfURL:url];
  // sBase64YuYin = [data base64EncodedStringWithOptions:0];
  //
  // [data writeToFile:[NSTemporaryDirectory() stringByAppendingPathComponent:@"tmp/aaa"] atomically:YES];
  //
  // AVAudioSession *audioSession = [AVAudioSession sharedInstance];
  // NSError *err = nil;
  // [audioSession setCategory :AVAudioSessionCategoryPlayAndRecord error:&err];
  // _recorder = [[AVAudioRecorder alloc] initWithURL:url settings:recordSetting error:nil];
  //准备录音
  // [_recorder prepareToRecord];
  // [self beginRecord];

  }

• (void)playAudioWithURL:(NSURL *)url{
  [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:nil];
  NSError * error;
  self.audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error];
  self.audioPlayer.delegate = self;
  BOOL success = [self.audioPlayer play];
  if (success) {
  NSLog(@"播放成功");
  }else{
  NSLog(@"播放失败");
  }
  }

• (void)beginRecord
  {
  NSLog(@"开始录音");
  [self createRecord];
  // [self.recorder record]; // 直接录音, 需要手动停止

  }

• (void)pauseRecord:(id)sender {
  NSLog(@"暂停录音");
  // [self.recorder pause];
  }

• (void)stopRecord {
  NSLog(@"停止录音");
  reader = true;
  [self.audioRecorder stop];
  // [self.recorder stop];

 [self.speakBtn setBackgroundImage:[UIImage imageNamed:@"qx10"] forState:UIControlStateNormal];

}
-(void)audioRecorderDidFinishRecording:(AVAudioRecorder *)recorder successfully:(BOOL)flag{
URL = recorder.url;
data = [NSData dataWithContentsOfURL:URL];
[self update];
NSLog(@"%@",URL);
}

/说话

• (void)speakClick:(id)sender forEvent:(UIEvent )event{
  if (reader == true) {
  [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:nil];
  NSError * error;
  self.audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:URL error:&error];
  self.audioPlayer.delegate = self;
  BOOL success = [self.audioPlayer play];
  if (success) {
  NSLog(@"播放成功");
  }else{
  NSLog(@"播放失败");
  }
  //
  // NSString path = [NSHomeDirectory() stringByAppendingPathComponent:@"tmp/aaa"];
  // NSURL* url = [NSURL fileURLWithPath:path];
  // NSLog(@"%@", url);
  // _player = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:nil];
  // AVAudioSession *audioSession = [AVAudioSession sharedInstance];
  // NSError *err = nil;
  // [audioSession setCategory :AVAudioSessionCategoryPlayback error:&err];
  // [_player prepareToPlay];
  // [_player play];
  }else{
  UITouchPhase phase = event.allTouches.anyObject.phase;
  if (phase == UITouchPhaseBegan) {
  NSLog(@"press");
  [self createRecord];

    }
    else if(phase == UITouchPhaseEnded){
        NSLog(@"release");
        [self stopRecord];
    } 
  

  }

}

pragma mark:上传语音

-(void)update{
AFHTTPSessionManager *manager = [[AFHTTPSessionManager alloc] init];
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"text/html",@"text/plain", nil ];
[manager POST:[NSString stringWithFormat:@"http://tyg.youruide.com/app/%@",updateYuYinUrl] parameters:@{} constructingBodyWithBlock:^(id<AFMultipartFormData> _Nonnull formData) {
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];//这里面没做优化,建议用一个单例
formatter.dateFormat = @"yyyyMMddHHmmss";
NSString *str = [formatter stringFromDate:[NSDate date]];
NSString *fileName = [NSString stringWithFormat:@"%@.mp3", str];//文件名

    [formData appendPartWithFileData:data name:@"audio" fileName:fileName mimeType:@".mp3"];//name:file与服务器对应
} progress:^(NSProgress * _Nonnull uploadProgress) {
    
} success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
    NSInteger code = [responseObject [@"code"]integerValue];
    if (code == 200) {
        
        filepath = [[responseObject objectForKey:@"data"] objectForKey:@"filepath"];
        
        [self showSuccessMessage:[responseObject  objectForKey:@"message"]];
        
        
    }
    NSLog(@"上传成功");
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
   
    NSLog(@"上传错误");
}];

}