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ios录音Demo

it2026-05-16  14
<AudioToolbox/AudioToolbox.h> :这个库是C的接口，偏向于底层，主要用于在线流媒体的播放 <AVFoundation/AVFoundation.h> :提供了音频和回放的底层API，同时也负责管理音频的硬件 //需要遵循一个代理协议<AVAudioRecorderDelegate>           ////  ViewController.m//  录音录频//#import "ViewController.h"//提供了音频和回放的底层API，同时也负责管理音频硬件#import <AVFoundation/AVFoundation.h>//这个库是C的接口，偏向于底层，主要用于在线流媒体的播放#import <AudioToolbox/AudioToolbox.h>@interface ViewController () <AVAudioRecorderDelegate>{    //用来录音    AVAudioRecorder *recorder;    //设置定时检测，用来监听当前音量大小，控制话筒图片    NSTimer *timer;       //设置一个路径，用来保存本地录音的路径    NSURL *urlPlay;         }//用来控制录音功能@property (nonatomic, strong) UIButton *btn;//用来播放已经录好的音频文件@property (nonatomic, strong) UIButton *playBtn;//控制音量的图片@property (nonatomic, strong) UIImageView *imageView;//音频播放器@property (nonatomic, strong) AVAudioPlayer *paly;@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];       //基本步骤：1.进行录音设置（先配置录音机（是一个字典），设置录音的格式，录音的采样率，录音的先行采样位数，录音的通道数，录音质量，录音路径，初始化录音对象，开启音量检测）；2.设置录音按钮的功能（UI设置）3.设置播放按钮并实现播放功能    //1.进行录音设置    [self audio];       //实现录音按钮的功能（UI设置）    //2.加图片    self.imageView = [[UIImageView alloc] initWithFrame:CGRectMake((self.view.frame.size.width - 100)/2, 100, 100, 100)];    self.imageView.backgroundColor = [UIColor redColor];       self.btn = [UIButton buttonWithType:UIButtonTypeCustom];       self.btn.frame = CGRectMake(self.imageView.frame.origin.x, 250, 50, 40);    [self.btn setTitle:@"开始" forState:UIControlStateNormal];    [self.btn setBackgroundColor:[UIColor greenColor]];    self.playBtn = [UIButton buttonWithType:UIButtonTypeCustom];    self.playBtn.frame = CGRectMake(self.imageView.frame.origin.x + 50, 250, 50, 40);    [self.playBtn setTitle:@"播放" forState:UIControlStateNormal];    [self.playBtn setBackgroundColor:[UIColor cyanColor]];    [self.playBtn addTarget:self action:@selector(paly:) forControlEvents:UIControlEventTouchUpInside];       //设置按钮的事件，当按钮被按下时    [self.btn addTarget:self action:@selector(btnDown:) forControlEvents:UIControlEventTouchDown];    //当手指抬起时     [self.btn addTarget:self action:@selector(btnUp:) forControlEvents:UIControlEventTouchUpInside];       //当触摸拖动离开控制范围时     [self.btn addTarget:self action:@selector(btnDragUp:) forControlEvents:UIControlEventTouchDragExit];       [self.view addSubview:self.playBtn];    [self.view addSubview:self.btn];    [self.view addSubview:self.imageView];         }//点击播放按钮的实现播放- (void)paly:(UIButton *)sender{    //加载本地录音文件    self.paly = [[AVAudioPlayer alloc] initWithContentsOfURL:urlPlay error:nil];    //准备播放    [self.paly prepareToPlay];    //播放    [self.paly play];   }//录音设置的方法- (void)audio{    //1.先配置Recorder(录音机)    NSMutableDictionary *recorderSetting = [NSMutableDictionary dictionary];         //2.设置录音的格式 / *在2000年被用在MPEG-4中（ISO 14496-3 Audio），所以现在变更为MPEG-4 AAC标准，也就是说，AAC已经成为MPEG4家族的主要成员之一，它是MPEG4第三部分中的音频编码系统。AAC可提供最多48个全音域音频通道。*/     [recorderSetting setValue:[NSNumber numberWithInt:kAudioFormatMPEG4AAC] forKey:AVFormatIDKey];       //3.设置录音采样率 --采样频率是指录音设备在一秒钟内对声音信号的采样次数，采样频率越高声音的还原就越真实越自然。在当今的主流声卡上，采样频率一般共分为22.05KHz、44.1KHz、48KHz三个等级，22.05只能达到FM广播的声音品质，44.1KHz则是理论上的CD音质界限，48KHz则更加精确一些    [recorderSetting setValue:[NSNumber numberWithFloat:44100] forKey:AVSampleRateKey];    //4.设置录音的通道数    [recorderSetting setValue:[NSNumber numberWithInt:1] forKey:AVNumberOfChannelsKey];        //5.线性采样位数 8 ，16 ，24 ，32、采样位数可以理解为声卡处理声音的解析度。这个数值越大，解析度就越高，录制和回放的声音就越真实 --一般都是16位的（2的16次方）/* PCM的基本参数是采样频率和采样位深，采样频率就是每秒采样多少次，位深就是声音通过拾音器转成的电平信号被量化的精细度，同时也代表一次采样会用多少位保存 */     [recorderSetting setValue:[NSNumber numberWithInt:16] forKey:AVLinearPCMBitDepthKey];       //6,录音质量    [recorderSetting setValue:[NSNumber numberWithInt:AVAudioQualityHigh] forKey:AVEncoderAudioQualityKey];       //设置录音路径    NSString *strUrl = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];       NSURL *url = [NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/record.aac",strUrl]];       //记录当前路径    urlPlay = url;       //初始化录音对象    NSError *error;    recorder = [[AVAudioRecorder alloc] initWithURL:url settings:recorderSetting error:&error];       //开启音量检测    recorder.meteringEnabled = YES;    recorder.delegate = self;}- (void)btnDown:(UIButton *)sender{       [sender setTitle:@"停止" forState:UIControlStateNormal];    //创建录音文件，准备录音    if([recorder prepareToRecord]){           //开始        [recorder record];           }       //设置定时检测，检测我们的图片    timer = [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(detectionVioce) userInfo:nil repeats:YES];         }- (void)btnUp:(UIButton *)sender{    //UI状态    [sender setTitle:@"开始" forState:UIControlStateNormal];       //记录当前时间    double cTime = recorder.currentTime;       if (cTime > 2) {               NSLog(@"放出去");    }else{        //删除我们的记录文件        [recorder deleteRecording];       }       //停止录音    [recorder stop];    //停止计时器    [timer invalidate];} - (void)btnDragUp:(UIButton *)sender{    [sender setTitle:@"开始" forState:UIControlStateNormal];       //删除录制文件    [recorder deleteRecording];    //停止录音    [recorder stop];    //停止计时器    [timer invalidate];       NSLog(@"取消发送");      }//检测当前声音- (void)detectionVioce{       //刷新当前音量数据    [recorder updateMeters];    //获取音量的平均值    double lowPassResults = pow(10, (0.05 * [recorder peakPowerForChannel:0]));//×于当前音量     //现在取值范围在0~1   (每隔0.7)    if(0 < lowPassResults < 0.06){              [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(1)"]];    }else if( 0.06< lowPassResults <= 0.13){         [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(2)"]];       }else if( 0.13<lowPassResults <= 0.20){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(3)"]];           }else if( 0.20 <lowPassResults <= 0.27){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(4)"]];           }else if( 0.27 <lowPassResults <= 0.34){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(5)"]];           }else if( 0.34 <lowPassResults <= 0.41){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(6)"]];           }else if( 0.41 <lowPassResults <= 0.48){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(7)"]];           }。。。。。){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(8)"]];           }else if( 0.55 <lowPassResults <= 0.62){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(9)"]];           }else if( 0.62 <lowPassResults <= 0.69){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(10)"]];           }){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(8)"]];           }else if( 0.55 <lowPassResults <= 0.62){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(9)"]];           }else if( 0.62 <lowPassResults <= 0.69){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(10)"]];           }else if( 0.69 <lowPassResults <= 0.76){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(11)"]];           }else if( 0.76 <lowPassResults <= 0.83){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(12)"]];           }else if( 0.83 <lowPassResults <= 0.90){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(13)"]];           }else{                      [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(14)"]];           }else if( 0.48 <lowPassResults <= 0.55){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(8)"]];           }else if( 0.55 <lowPassResults <= 0.62){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(9)"]];           }else if( 0.62 <lowPassResults <= 0.69){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(10)"]];           }else if( 0.69 <lowPassResults <= 0.76){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(11)"]];           }else if( 0.76 <lowPassResults <= 0.83){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(12)"]];           }else if( 0.83 <lowPassResults <= 0.90){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(13)"]];           }else{                      [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(14)"]];           }else if( 0.48 <lowPassResults <= 0.55){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(8)"]];           }else if( 0.55 <lowPassResults <= 0.62){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(9)"]];           }else if( 0.62 <lowPassResults <= 0.69){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(10)"]];           }else if( 0.69 <lowPassResults <= 0.76){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(11)"]];           }else if( 0.76 <lowPassResults <= 0.83){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(12)"]];           }else if( 0.83 <lowPassResults <= 0.90){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(13)"]];           }else{                      [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(14)"]];           }else if( 0.48 <lowPassResults <= 0.55){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(8)"]];           }else if( 0.55 <lowPassResults <= 0.62){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(9)"]];           }else if( 0.62 <lowPassResults <= 0.69){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(10)"]];           }else if( 0.69 <lowPassResults <= 0.76){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(11)"]];           }else if( 0.76 <lowPassResults <= 0.83){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(12)"]];           }else if( 0.83 <lowPassResults <= 0.90){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(13)"]];           }else{                      [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(14)"]];           }){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(8)"]];           }else if( 0.55 <lowPassResults <= 0.62){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(9)"]];           }else if( 0.62 <lowPassResults <= 0.69){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(10)"]];           }else if( 0.69 <lowPassResults <= 0.76){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(11)"]];           }else if( 0.76 <lowPassResults <= 0.83){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(12)"]];           }else if( 0.83 <lowPassResults <= 0.90){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(13)"]];           }else{                      [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(14)"]];           }0.69){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(10)"]];           }else if( 0.69 <lowPassResults <= 0.76){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(11)"]];           }else if( 0.76 <lowPassResults <= 0.83){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(12)"]];           }else if( 0.83 <lowPassResults <= 0.90){               [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(13)"]];           }else{                      [self.imageView setImage:[UIImage imageNamed:@"iconfont-huatong(14)"]];          

 

转载于:https://www.cnblogs.com/ryc--520/p/4984111.html

相关资源：iOS录音播放方法Demo
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