如何記錄從藍牙設備麥克風的聲音和在設備揚聲器播放

Question

我曾嘗試使用的代碼 record input coming from bluetooth headset in iPhone 雖然與這些代碼我能夠記錄聲音，但不能從藍牙設備mic.its從設備（iphone ）麥克風 我將如何將錄製的聲音發送給演講者。 PLž幫助我和任何幫助讚賞

// create and set up the audio session 
    AVAudioSession* audioSession = [AVAudioSession sharedInstance]; 
    [audioSession setDelegate:self]; 
    [audioSession setCategory: AVAudioSessionCategoryPlayAndRecord error: nil]; 
    [audioSession setActive: YES error: nil]; 

// set up for bluetooth microphone input 
UInt32 allowBluetoothInput = 1; 
OSStatus stat = AudioSessionSetProperty (
         kAudioSessionProperty_OverrideCategoryEnableBluetoothInput, 
         sizeof (allowBluetoothInput), 
         &allowBluetoothInput 
         ); 
NSLog(@"status = %x", stat); // problem if this is not zero 

// check the audio route 
UInt32 size = sizeof(CFStringRef); 
CFStringRef route; 
OSStatus result = AudioSessionGetProperty(kAudioSessionProperty_AudioRoute, &size, &route); 
NSLog(@"route = %@", route);  
// if bluetooth headset connected, should be "HeadsetBT" 
// if not connected, will be "ReceiverAndMicrophone" 

// now, play a quick sound we put in the bundle (bomb.wav) 
CFBundleRef mainBundle = CFBundleGetMainBundle(); 
CFURLRef  soundFileURLRef; 
SystemSoundID soundFileObject; 
soundFileURLRef = CFBundleCopyResourceURL (mainBundle,CFSTR ("bomb"),CFSTR ("wav"),NULL); 

NSError *error = nil; 

audioRecorder = [[AVAudioRecorder alloc] 
       initWithURL:soundFileURLRef 
       settings:recordSettings 
       error:&error]; 
if (error) 
{ 
    NSLog(@"error: %@", [error localizedDescription]); 
} else { 
    [audioRecorder prepareToRecord]; 
} 

Answer 1

是上述概念是正確的，對我來說非常有幫助的（但做了一點補充或修改），但路由到揚聲器（設備揚聲器）需要新的會話創建

採取從藍牙輸入我們有像

//// create and set up the audio session 
AVAudioSession* audioSession = [AVAudioSession sharedInstance]; 
[audioSession setDelegate:self]; 
[audioSession setCategory: AVAudioSessionCategoryRecord error: nil]; 
[audioSession setActive: YES error: nil]; 

// set up for bluetooth microphone input 
UInt32 allowBluetoothInput = 1; 
AudioSessionSetProperty (kAudioSessionProperty_OverrideCategoryEnableBluetoothInput,sizeof (allowBluetoothInput),&allowBluetoothInput); 

，並當過ü要在那個時候不發青的聲音BluetoothDevice類揚聲器覆蓋會話使用newily創建會話建立一個

- (IBAction)playAudio:(id)sender { 



[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayAndRecord error:nil]; 
UInt32 audioRouteOverride = kAudioSessionOverrideAudioRoute_Speaker; 
AudioSessionSetProperty(kAudioSessionProperty_OverrideAudioRoute, sizeof(audioRouteOverride), &audioRouteOverride); 




UInt32 size = sizeof(CFStringRef); 
CFStringRef route; 
OSStatus result = AudioSessionGetProperty(kAudioSessionProperty_AudioRoute, &size, &route); 
NSLog(@"route = %@", route); 
    //here u can diffrent route set up based on session audiosessionid 

}