接入百度语音SDK的步骤

1.导入依赖库

SystemConfiguration.framework

AudioToolbox.framework

UIkit.framework

AVFoundation.framework

Foundation.framework

libz.tbd

Security.framework

QuartzCore.framework

CoreText.framework

GLKit.framework

OpenGLES.framework

CoreLocation.framework

CFNetwork.framework

CoreGraphics.framework

注意还要导入依赖库：CoreTelephony.framework

2.需要包含的SDK文件有：

从开放平台下载的包里面的

Headers文件夹、Third Part文件夹、还有..resources文件夹(tone和scheme)、还有.a静态库文件

3.将工程的bitcode设置为NO

4.build Setting里面设置other linker flags为-ObjC

示例Demo：

#import "ViewController.h"

#import "BDVoiceRecognitionClient.h"

@interface ViewController ()<MVoiceRecognitionClientDelegate>

@end

@implementation ViewController

- (void)viewDidLoad {

[super viewDidLoad];

}

- (void)viewWillDisappear:(BOOL)animated

{

[super viewWillDisappear:animated];

//取消监听语音音量

[[BDVoiceRecognitionClient sharedInstance] cancelListenCurrentDBLevelMeter];

}

- (void)didReceiveMemoryWarning {

[super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

- (IBAction)inputBtnClick:(id)sender {

BDVoiceRecognitionClient * client = [BDVoiceRecognitionClient sharedInstance];

[client setApiKey:@"Au2wN2SaDOpYZHgGqrIymMkU" withSecretKey:@"a0212d1fa0f28699aa5d1162a1bcbf1c"];

//设置识别垂类

//[client setPropertyList:@[[NSNumber numberWithInt:EVoiceRecognitionPropertyVideo]]];

//设置识别语言为普通话

[client setLanguage:EVoiceRecognitionPropertyMusic];

//禁用标点符号<默认不禁用>

[client disablePuncs:YES];

//设置是否对语音进行端点检测，即SDK会自动判断说话是否结束<默认开启>

[client setNeedVadFlag:YES];

//设置是否对上传的语音进行压缩<默认压缩>

[client setNeedCompressFlag:YES];

//设置在线识别的响应等待时间,如果超时,触发同步离线识别

[client setOnlineWaitTime:5];

//开启自然语言理解结果

[client setConfig:@"nlu" withFlag:YES];

//开始说话开始提示音

[client setPlayTone:EVoiceRecognitionPlayTonesRecStart isPlay:YES];

//开始说话结束提示音

[client setPlayTone:EVoiceRecognitionPlayTonesRecEnd isPlay:YES];

//打开语音音量功能

[client listenCurrentDBLevelMeter];

//获取当前语音音量级别

[client getCurrentDBLevelMeter];

int startStatus = [client startVoiceRecognition:self];

switch (startStatus) {

case EVoiceRecognitionStartWorking:

self.label.text = @"启动成功！";

break;

default:

self.label.text = [NSString stringWithFormat:@"启动失败 - 错误码：%d",startStatus];

break;

}

}

- (void)VoiceRecognitionClientWorkStatus:(int)aStatus obj:(id)aObj {

switch (aStatus) {

case EVoiceRecognitionClientWorkStatusFlushData: {

// 该状态值表示服务器返回了中间结果,如果想要将中间结果展示给用户(形成连续上屏的效果), // 可以利用与该状态同时返回的数据,每当接到新的该类消息应当清空显示区域的文字以免重复

NSMutableString *tmpString = [[NSMutableString alloc] initWithString:@""]; [tmpString appendFormat:@"%@",[aObj objectAtIndex:0]];

NSLog(@"result: %@", tmpString);

break; }

case EVoiceRecognitionClientWorkStatusFinish: {

// 该状态值表示语音识别服务器返回了最终结果,结果以数组的形式保存在 aObj 对象中 // 接受到该消息时应当清空显示区域的文字以免重复

if ([[BDVoiceRecognitionClient sharedInstance] getRecognitionProperty] != EVoiceRecognitionPropertyInput)

{

NSMutableArray *resultData = (NSMutableArray *)aObj;  //解析结果，并显示

NSMutableString *tmpString = [[NSMutableString alloc] initWithString:@""];

// 获取识别候选词列表

for (int i=0; i<[resultData count]; i++) {

[tmpString appendFormat:@"%@\r\n",[resultData objectAtIndex:i]]; }

self.label.text = tmpString;

} else {

NSMutableString *sentenceString = [[NSMutableString alloc] initWithString:@""]; for (NSArray *result in aObj)// 此时 aObj 是 array,result 也是 array

{

// 取每条候选结果的第 条,进 组合

// result 的元素是 dictionary,对应 个候选词和对应的可信度

NSDictionary *dic = [result objectAtIndex:0];

NSString *candidateWord = [[dic allKeys] objectAtIndex:0];

[sentenceString appendString:candidateWord];

}

NSLog(@"result: %@", sentenceString);

}

break; }

case EVoiceRecognitionClientWorkStatusReceiveData: {

// 此状态只在输入模式下发生,表示语音识别正确返回结果,每个子句会通知一次(全量, // 即第二次收到该消息时所携带的结果包含第一句的识别结果),应用程序可以

// 逐句显示。配合连续上屏的中间结果,可以进一步 升语音输入的体验

NSMutableString *sentenceString = [[NSMutableString alloc] initWithString:@""];

for (NSArray *result in aObj)// 此时 aObj 是 array,result 也是 array

{

// 取每条候选结果的第 条,进 组合

// result 的元素是 dictionary,对应 个候选词和对应的可信度

NSDictionary *dic = [result objectAtIndex:0];

NSString *candidateWord = [[dic allKeys] objectAtIndex:0];

[sentenceString appendString:candidateWord];

}

NSLog(@"result: %@", sentenceString); break;

}

case EVoiceRecognitionClientWorkStatusNewRecordData: {

// 有音频数据输出,音频数据格式为 PCM,在有 WiFi 连接的条件下为 16k16bit,非 WiFi

// 为 8k16bit break;

}

case EVoiceRecognitionClientWorkStatusEnd: {

// 用户说话完成,但服务器尚未返回结果

break; }

case EVoiceRecognitionClientWorkStatusCancel: {

// 用户主动取消

break; }

case EVoiceRecognitionClientWorkStatusError: {

// 错误状态

self.label.text = @"没有语音输入";

break; }

case EVoiceRecognitionClientWorkPlayStartTone:

case EVoiceRecognitionClientWorkPlayStartToneFinish:

case EVoiceRecognitionClientWorkStatusStartWorkIng:

case EVoiceRecognitionClientWorkStatusStart:

case EVoiceRecognitionClientWorkPlayEndToneFinish:

case EVoiceRecognitionClientWorkPlayEndTone:

break;

}

}