iPhone - 如果我使用 AVAudioRecorder 录音，openAL 将停止播放
这是一个与 iPhone 相关的问题： 我使用 openAL 来播放一些声音（我必须管理增益、音高等）。 我想录制我正在播放的内容，并且使用 AVAudioRecorder，但是当我“prepareToRecord”时，openAL 停止播放音频。 有什么问题吗？ 这是我使用的 IBAction 记录：
- (IBAction) record: (id) sender
{
NSError *error;
NSMutableDictionary *settings = [NSMutableDictionary dictionary];
[settings setValue: [NSNumber numberWithInt:kAudioFormatLinearPCM] forKey:AVFormatIDKey];
[settings setValue: [NSNumber numberWithFloat:8000.0] forKey:AVSampleRateKey];
[settings setValue: [NSNumber numberWithInt: 1] forKey:AVNumberOfChannelsKey];
[settings setValue: [NSNumber numberWithInt:16] forKey:AVLinearPCMBitDepthKey];
[settings setValue: [NSNumber numberWithBool:NO] forKey:AVLinearPCMIsBigEndianKey];
[settings setValue: [NSNumber numberWithBool:NO] forKey:AVLinearPCMIsFloatKey];
NSURL *url = [NSURL fileURLWithPath:FILEPATH];
self.recorder = [[AVAudioRecorder alloc] initWithURL:url settings:settings error:&error];
self.recorder.delegate = self;
self.recorder.meteringEnabled = YES;
[self.recorder prepareToRecord];
[self.recorder record];
}
谢谢
编辑：
我也尝试过使用 AudioQueue 录音。 这次声音在这段代码之后停止：
status = AudioQueueEnqueueBuffer(recordState.queue, recordState.buffers[i], 0, NULL);
So it's possible to record while iPhone is Playing with openAL???
再次感谢
this is an iPhone-related question:
I use openAL to play some sound (I have to manage gain, pitch, etc.).
I want to record what I'm playing and I use AVAudioRecorder but when I "prepareToRecord" openAL stops to play audio.
What's the problem?
Here is the record IBAction I use:
- (IBAction) record: (id) sender
{
NSError *error;
NSMutableDictionary *settings = [NSMutableDictionary dictionary];
[settings setValue: [NSNumber numberWithInt:kAudioFormatLinearPCM] forKey:AVFormatIDKey];
[settings setValue: [NSNumber numberWithFloat:8000.0] forKey:AVSampleRateKey];
[settings setValue: [NSNumber numberWithInt: 1] forKey:AVNumberOfChannelsKey];
[settings setValue: [NSNumber numberWithInt:16] forKey:AVLinearPCMBitDepthKey];
[settings setValue: [NSNumber numberWithBool:NO] forKey:AVLinearPCMIsBigEndianKey];
[settings setValue: [NSNumber numberWithBool:NO] forKey:AVLinearPCMIsFloatKey];
NSURL *url = [NSURL fileURLWithPath:FILEPATH];
self.recorder = [[AVAudioRecorder alloc] initWithURL:url settings:settings error:&error];
self.recorder.delegate = self;
self.recorder.meteringEnabled = YES;
[self.recorder prepareToRecord];
[self.recorder record];
}
Thanks
EDIT:
I tried with AudioQueue recording too.
This time sounds stops after this code:
status = AudioQueueEnqueueBuffer(recordState.queue, recordState.buffers[i], 0, NULL);
So it's possible to record when iPhone is playing with openAL???
Thanks again
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（1）
FILEPATH 与正在播放另一个文件的路径相同...？
如果
record和prepareToRecord从同一个地方调用...实际上你不需要调用prepareToRecord...record< /code> 会完成这项工作...请参阅
http://developer.apple.com/iphone/library/documentation/AVFoundation/Reference/AVAudioRecorder_ClassReference/Reference/Reference.html#//apple_ref/occ/instm/AVAudioRecorder/prepareToRecord
FILEPATH is same as path where another file is being played...?
and if
recordandprepareToRecordare called from same place... actually you do not need to callprepareToRecord...recordwill do the job...see
http://developer.apple.com/iphone/library/documentation/AVFoundation/Reference/AVAudioRecorder_ClassReference/Reference/Reference.html#//apple_ref/occ/instm/AVAudioRecorder/prepareToRecord