IOS Recording (Avaudiorecorder)

#import "HMViewController.h"#import<AVFoundation/AVFoundation.h>@interfaceHmviewcontroller ()-(ibaction) Startrecord;-(ibaction) Stoprecord; @property (nonatomic, strong) Avaudiorecorder*Recorder, @property (nonatomic, strong) Cadisplaylink*timer; @property (nonatomic, strong) Nstimer*Stoprecordtimer;/** Duration of silence*/@property (nonatomic, assign) cgfloat slientduration;@end@implementationHmviewcontroller- (void) viewdidload{[Super Viewdidload]; }- (void) addtimer{Self.timer=[Cadisplaylink displaylinkwithtarget:self selector: @selector (update)]; [Self.timer Addtorunloop:[nsrunloop Mainrunloop] formode:nsrunloopcommonmodes];}- (void) removetimer{[Self.timer invalidate]; Self.timer=Nil;}- (void) update{//Update test Values[Self.recorder updatemeters]; //If the decibel does not exceed -20    floatPower = [Self.recorder Averagepowerforchannel:0]; if(Power <=- -) {//almost muteSelf.slientduration + =self.timer.duration; if(Self.slientduration >=2) {            //Stop Recording[Self.recorder stop]; }    } Else{//have a talkSelf.slientduration =0; }}//-(void) Update//{//    //Update test Values//[Self.recorder updatemeters];//    //    //If the decibel does not exceed -20//float power = [Self.recorder averagepowerforchannel:0];//if (Power <= -20) {//almost mute//if (!self.stoprecordtimer) {//Self.stoprecordtimer = [Nstimer scheduledtimerwithtimeinterval:2.0 target:self.recorder selector: @selecto R (Stoprecord) Userinfo:nil Repeats:no];//        }//} else {//have a talk////[Self.stoprecordtimer invalidate];////Self.stoprecordtimer = nil;//nsdate *time = [NSDate datewithtimeintervalsincenow:2.0];//[Self.stoprecordtimer setfiredate:time];//    }//}-(ibaction) startrecord {nsstring*doc =[Nssearchpathfordirectoriesindomains (NSDocumentDirectory, Nsuserdomainmask, YES) lastobject]; NSString*path = [Doc stringbyappendingpathcomponent:@"TEST.CAF"]; Nsurl*url =[Nsurl Fileurlwithpath:path]; Avaudiorecorder*recorder =[[Avaudiorecorder alloc] Initwithurl:url settings:nil Error:nil]; //Buffering[Recorder Preparetorecord]; //turn on the decibel measurement functionrecorder.meteringenabled =YES; //Start Recording[recorder record]; Self.recorder=Recorder; //Turn on Timer[self addtimer];}-(ibaction) Stoprecord {//[Self.recorder stop];}@end

IOS Recording (Avaudiorecorder)