最近要用过录音功能，搜罗了些方法 ，发现只需要使用ios提供的类就可实现
录音方法：
- (void)startRecord{
[_activityView startAnimating];
AVAudioSession *session =[AVAudioSession sharedInstance];
NSError *sessionError;
[session setCategory:AVAudioSessionCategoryPlayAndRecord error:&sessionError];
if (session == nil) {
NSLog(@"Error creating session: %@",[sessionError description]);
}else{
[session setActive:YES error:nil];
}
self.session = session;
//1.获取沙盒地址
NSString *path = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
self.filePath = [path stringByAppendingString:@"/RRecord.wav"];
//2.获取文件路径
self.recordFileUrl = [NSURL fileURLWithPath:self.filePath];
//设置参数
NSDictionary *recordSetting = [[NSDictionary alloc] initWithObjectsAndKeys:
//采样率 8000/11025/22050/44100/96000（影响音频的质量）
[NSNumber numberWithFloat: 8000.0],AVSampleRateKey,
// 音频格式
[NSNumber numberWithInt: kAudioFormatLinearPCM],AVFormatIDKey,
//采样位数 8、16、24、32 默认为16
[NSNumber numberWithInt:16],AVLinearPCMBitDepthKey,
// 音频通道数 1 或 2
[NSNumber numberWithInt: 1], AVNumberOfChannelsKey,
//录音质量
[NSNumber numberWithInt:AVAudioQualityHigh],AVEncoderAudioQualityKey,
nil];
_recorder = [[AVAudioRecorder alloc] initWithURL:self.recordFileUrl settings:recordSetting error:nil];
if (_recorder) {
_recorder.meteringEnabled = YES;
[_recorder prepareToRecord];
[_recorder record];
// dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(60 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
//
//// [self stopRecord:nil];
// });
}else{
NSLog(@"音频格式和文件存储格式不匹配,无法初始化Recorder");
}
}
停止录音方法：
- (void)stop_sendToService{
//如果正在录音 就停止
[_activityView stopAnimating];
if ([self.recorder isRecording]) {
[self.recorder stop];
}
NSFileManager *manager = [NSFileManager defaultManager];
if ([manager fileExistsAtPath:self.filePath]){
NSLog(@"%@",[NSString stringWithFormat:@"文件大小为 %.2fKb",[[manager attributesOfItemAtPath:self.filePath error:nil] fileSize]/1024.0]);
}else{
}
//同时将文件上传
[self sendToService];
}
ok 结束
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