我正在为我的应用程序添加语音提示并在iOS 7中测试AVSpeechUtterance,但默认语音速率非常快.最低语速更容易理解.但最大音量值1太安静了！我在iPhone 4上测试了它,音量一直在变高.某些东西一定是错的,否则它将如何可用.
AVSpeechSynthesizer *synthesizer = [[AVSpeechSynthesizer alloc]init];
NSString *mystring = [NSString stringWithFormat:@"Talk String Here %@",myObject.name];
AVSpeechUtterance *utterance = [AVSpeechUtterance speechUtteranceWithString:mystring];
[utterance setRate:AVSpeechUtteranceMinimumSpeechRate];
[utterance setVolume:1];
[synthesizer speakUtterance:utterance];
