iOS语音备忘录是一款可以让用户使用语音记录和管理备忘录的应用。它可以帮助用户快速记录重要事项,并且可以将备忘录保存在本地,也可以同步到iCloud上,方便用户随时随地查看和管理备忘录。
iOS语音备忘录是一款可以让用户使用语音记录和管理备忘录的应用。它可以帮助用户快速记录重要事项,并且可以将备忘录保存在本地,也可以同步到iCloud上,方便用户随时随地查看和管理备忘录。
以下是iOS语音备忘录的代码示例:
// 导入需要的框架
#import
#import
// 声明变量
@property (strong, nonatomic) AudioEngine *audioEngine;
@property (strong, nonatomic) SFSpeechRecognizer *speechRecognizer;
@property (strong, nonatomic) SFSpeechAudioBufferRecognitionRequest *recognitionRequest;
@property (strong, nonatomic) SFSpeechRecognitionTask *recognitionTask;
// 初始化语音识别
- (void)initSpeechRecognizer {
self.audioEngine = [[AudioEngine alloc] init];
self.speechRecognizer = [[SFSpeechRecognizer alloc] init];
self.recognitionRequest = [[SFSpeechAudioBufferRecognitionRequest alloc] init];
self.recognitionTask = nil;
}
// 开始录音
- (void)startRecording {
if (self.recognitionTask != nil) {
[self.recognitionTask cancel];
self.recognitionTask = nil;
}
AudioSession *audioSession = [AudioSession sharedInstance];
NSError *error;
[audioSession setCategory:AudioSessionCategoryRecord error:&error];
[audioSession setMode:AudioSessionModeMeasurement error:&error];
[audioSession setActive:YES withOptions:AudioSessionSetActiveOptionNotifyOthersOnDeactivation error:&error];
self.recognitionRequest = [[SFSpeechAudioBufferRecognitionRequest alloc] init];
AudioInputNode *inputNode = self.audioEngine.inputNode;
self.recognitionRequest.shouldReportPartialResults = YES;
__weak typeof(self) weakSelf = self;
self.recognitionTask = [self.speechRecognizer recognitionTaskWithRequest:self.recognitionRequest resultHandler:^(SFSpeechRecognitionResult * _Nullable result, NSError * _Nullable error) {
if (result != nil) {
// 处理识别结果
[weakSelf handleRecognitionResult:result];
}
}];
AudioFormat *recordingFormat = [inputNode outputFormatForBus:0];
[inputNode installTapOnBus:0 bufferSize:1024 format:recordingFormat block:^(AudioPCMBuffer * _Nonnull buffer, AudioTime * _Nonnull when) {
[weakSelf.recognitionRequest appendAudioPCMBuffer:buffer];
}];
[self.audioEngine prepare];
[self.audioEngine startAndReturnError:&error];
}
// 停止录音
- (void)stopRecording {
[self.audioEngine stop];
[self.recognitionRequest endAudio];
[self.audioEngine.inputNode removeTapOnBus:0];
}
// 处理识别结果
- (void)handleRecognitionResult:(SFSpeechRecognitionResult *)
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