我喜欢通过呼叫接收器扬声器播放音频,目前我使用它来播放一些文本作为音频。
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我得到了但这不适用于AVSpeechSynthesizer:
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正确地说它正常的扬声器,但我想通过呼叫接收器扬声器播放,是否可以这样做?
答案 0 :(得分:4)
默认行为是通过呼叫接收器播放。因此,如果您取消设置覆盖 - 或者不首先设置它 - 您应该得到您所追求的行为:
[[AVAudioSession sharedInstance]
overrideOutputAudioPort:AVAudioSessionPortOverrideNone
error:nil];
这是一个完整的例子。您还需要设置audioSession类别。
- (void)playVoice {
[[AVAudioSession sharedInstance]
setCategory:AVAudioSessionCategoryPlayAndRecord
error:nil];
//try one or the other but not both...
//[self playVoiceOnSpeaker:@"test test test"];
[self playVoiceOnReceiver:@"test test test"];
}
-(void)playVoiceOnSpeaker:(NSString*)str
{
[[AVAudioSession sharedInstance]
overrideOutputAudioPort:AVAudioSessionPortOverrideSpeaker
error:nil];
[self playVoiceByComputer:str];
}
-(void)playVoiceOnReceiver:(NSString*)str
{
[[AVAudioSession sharedInstance]
overrideOutputAudioPort:AVAudioSessionPortOverrideNone
error:nil];
[self playVoiceByComputer:str];
}
-(void)playVoiceByComputer:(NSString*)str
{
AVSpeechUtterance *utterance =
[AVSpeechUtterance speechUtteranceWithString:str];
AVSpeechSynthesizer *syn = [[AVSpeechSynthesizer alloc] init];
[syn speakUtterance:utterance];
}
答案 1 :(得分:0)
这对我有用:
try audioSession.setCategory(AVAudioSessionCategoryPlayAndRecord, with: [.defaultToSpeaker])