avspeechsynthesized 文字播放聲音
#import "THSpeechController.h"
#import <AVFoundation/AVFoundation.h>
@interface THSpeechController ()
@property (strong, nonatomic) AVSpeechSynthesizer *synthesizer;
@property (strong, nonatomic) NSArray *voices;
@property (strong, nonatomic) NSArray *speechStrings;
@end
@implementation THSpeechController
+ (instancetype)speechController {
return [[self alloc] init];
}
- (id)init {
self = [super init];
if (self) {
_synthesizer = [[AVSpeechSynthesizer alloc] init];
_voices = @[[AVSpeechSynthesisVoice voiceWithLanguage:@"en-US"],
[AVSpeechSynthesisVoice voiceWithLanguage:@"en-GB"]];
_speechStrings = [self buildSpeechStrings];
}
return self;
}
- (NSArray *)buildSpeechStrings {
return @[@"Hello AV Foundation. How are you?",
@"I'm well! Thanks for asking.",
@"Are you excited about the book?",
@"Very! I have always felt so misunderstood.",
@"What's your favorite feature?",
@"Oh, they're all my babies. I couldn't possibly choose.",
@"It was great to speak with you!",
@"The pleasure was all mine! Have fun!"];
}
- (void)beginConversation {
for (NSUInteger i = 0; i < self.speechStrings.count; i++) {
AVSpeechUtterance *utterance =
[[AVSpeechUtterance alloc] initWithString:self.speechStrings[i]];
utterance.voice = self.voices[i % 2];
utterance.rate = 0.5f;
utterance.pitchMultiplier = 0.8f;
utterance.postUtteranceDelay = 0.1f;
[self.synthesizer speakUtterance:utterance];
}
}
@end
avaudioplayer auaudiosession
avaudiorecoder auaudiosettings
