AvaudioRecorder 录音
//
// ViewController.m
// AVAudioRecorder录音
//
// Created by 草帽~小子 on 2017/8/16.
// Copyright © 2017年 HLJ. All rights reserved.
//
#import "ViewController.h"
#import
#define kRecordAudioFile @"myRecord.caf"
*************plist文件中添加媒体、相机、麦克风权限********
@interface ViewController ()<AVAudioRecorderDelegate>
@property (nonatomic,strong)AVAudioRecorder *audioRecorder;//音频录音机
@property (nonatomic,strong)AVAudioPlayer *audioPlayer;//音频播放器，用于播放录音文件
@property (nonatomic,strong)NSTimer *timer;//录音声波监控（注意这里暂时不对播放进行监控）
@property (strong,nonatomic) UIButton *record;//开始录音
@property (strong,nonatomic) UIButton *pause;//暂停录音
@property (strong,nonatomic) UIButton *resume;//恢复录音
@property (strong,nonatomic) UIButton *stop;//停止录音
@property (strong,nonatomic) UIProgressView *audioPower;//音频波动
@end
@implementation ViewController
- (void)viewDidLoad {
[superviewDidLoad];
[selfcreateSub];
[selfsetAudioSession];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)createSub {
//录音
self.record = [UIButtonbuttonWithType:UIButtonTypeSystem];
self.record.frame =CGRectMake(10,500, 60,40);
self.record.backgroundColor = [UIColor orangeColor];
[self.recordsetTitle:@"录音"forState:UIControlStateNormal];
[self.recordaddTarget:selfaction:@selector(record:)forControlEvents:UIControlEventTouchUpInside];
[self.viewaddSubview:self.record];
//暂停
self.pause = [UIButtonbuttonWithType:UIButtonTypeSystem];
self.pause.frame =CGRectMake(80,500, 60,40);
self.pause.backgroundColor = [UIColor orangeColor];
[self.pausesetTitle:@"暂停"forState:UIControlStateNormal];
[self.pauseaddTarget:selfaction:@selector(pause:)forControlEvents:UIControlEventTouchUpInside];
[self.viewaddSubview:self.pause];
//恢复
self.resume = [UIButtonbuttonWithType:UIButtonTypeSystem];
self.resume.frame =CGRectMake(150,500, 60,40);
self.resume.backgroundColor = [UIColor orangeColor];
[self.resumesetTitle:@"恢复"forState:UIControlStateNormal];
[self.resumeaddTarget:selfaction:@selector(resume:)forControlEvents:UIControlEventTouchUpInside];
[self.viewaddSubview:self.resume];
//停止
self.stop = [UIButtonbuttonWithType:UIButtonTypeSystem];
self.stop.frame =CGRectMake(220,500, 60,40);
self.stop.backgroundColor = [UIColor orangeColor];
[self.stopsetTitle:@"停止"forState:UIControlStateNormal];
[self.stopaddTarget:selfaction:@selector(stop:)forControlEvents:UIControlEventTouchUpInside];
[self.viewaddSubview:self.stop];
}
#pragma mark - 私有方法
/**
* 设置音频会话
*/
-(void)setAudioSession{
AVAudioSession *audioSession=[AVAudioSessionsharedInstance];
//设置为播放和录音状态，以便可以在录制完之后播放录音
[audioSession setCategory:AVAudioSessionCategoryPlayAndRecorderror:nil];
[audioSession setActive:YESerror:nil];
}
/**
* 取得录音文件保存路径
*
* @return 录音文件路径
*/
-(NSURL *)getSavePath{
NSString *urlStr=[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES) lastObject];
urlStr=[urlStr stringByAppendingPathComponent:kRecordAudioFile];
NSLog(@"file path:%@",urlStr);
NSURL *url=[NSURLfileURLWithPath:urlStr];
return url;
}
/**
* 取得录音文件设置
*
* @return 录音设置
*/
-(NSDictionary *)getAudioSetting{
NSMutableDictionary *dicM=[NSMutableDictionarydictionary];
//设置录音格式
[dicM setObject:@(kAudioFormatLinearPCM)forKey:AVFormatIDKey];
//设置录音采样率，8000是电话采样率，对于一般录音已经够了
[dicM setObject:@(8000)forKey:AVSampleRateKey];
//设置通道,这里采用单声道
[dicM setObject:@(1)forKey:AVNumberOfChannelsKey];
//每个采样点位数,分为8、16、24、32
[dicM setObject:@(8)forKey:AVLinearPCMBitDepthKey];
//是否使用浮点数采样
[dicM setObject:@(YES)forKey:AVLinearPCMIsFloatKey];
//....其他设置等
return dicM;
}
/**
* 获得录音机对象
*
* @return 录音机对象
*/
-(AVAudioRecorder *)audioRecorder{
if (!_audioRecorder) {
//创建录音文件保存路径
NSURL *url = [self getSavePath];
//创建录音格式设置
NSDictionary *setting = [self getAudioSetting];
//创建录音机
NSError *error =nil;
_audioRecorder=[[AVAudioRecorderalloc]initWithURL:urlsettings:setting error:&error];
_audioRecorder.delegate =self;
_audioRecorder.meteringEnabled=YES;//如果要监控声波则必须设置为YES
if (error) {
NSLog(@"创建录音机对象时发生错误，错误信息：%@",error.localizedDescription);
returnnil;
}
}
return_audioRecorder;
}
/**
* 创建播放器
*
* @return 播放器
*/
-(AVAudioPlayer *)audioPlayer{
if (!_audioPlayer) {
NSURL *url = [selfgetSavePath];
NSError *error=nil;
_audioPlayer=[[AVAudioPlayeralloc]initWithContentsOfURL:urlerror:&error];
_audioPlayer.numberOfLoops=0;
[_audioPlayerprepareToPlay];
if (error) {
NSLog(@"创建播放器过程中发生错误，错误信息：%@",error.localizedDescription);
returnnil;
}
}
return_audioPlayer;
}
/**
* 录音声波监控定制器
*
* @return 定时器
*/
-(NSTimer *)timer{
if (!_timer) {
_timer=[NSTimerscheduledTimerWithTimeInterval:0.1ftarget:selfselector:@selector(audioPowerChange)userInfo:nilrepeats:YES];
}
return_timer;
}
/**
* 录音声波状态设置
*/
-(void)audioPowerChange{
[self.audioRecorderupdateMeters];//更新测量值
float power= [self.audioRecorderaveragePowerForChannel:0];//取得第一个通道的音频，注意音频强度范围时-160到0
CGFloat progress=(1.0/160.0)*(power+160.0);
[self.audioPowersetProgress:progress];
}
#pragma mark - UI事件
/**
* 点击录音按钮
*
* @param button 录音按钮
*/
- (void)record:(UIButton *)button {
if (![self.audioRecorderisRecording]) {
[self.audioRecorderrecord];//首次使用应用时如果调用record方法会询问用户是否允许使用麦克风
self.timer.fireDate = [NSDatedistantPast];
}
}
- (void)pause:(UIButton *)bu {
if ([self.audioRecorderisRecording]) {
[self.audioRecorderpause];
self.timer.fireDate=[NSDatedistantFuture];
}
}
- (void)resume:(UIButton *)bu {
[selfrecord:bu];
}
- (void)stop:(UIButton *)bu {
[self.audioRecorderstop];
self.timer.fireDate=[NSDatedistantFuture];
self.audioPower.progress=0.0;
}
#pragma mark - 录音机代理方法
/**
* 录音完成，录音完成后播放录音
*
* @param recorder 录音机对象
* @param flag 是否成功
*/
-(void)audioRecorderDidFinishRecording:(AVAudioRecorder *)recorder successfully:(BOOL)flag{
if (![self.audioPlayerisPlaying]) {
[self.audioPlayerplay];
NSLog(@"sdf");
}
NSLog(@"录音完成!");
}