Recording of iOS development

Why should the recording alone to write, just because this is relatively simple, but because he is relatively simple, causing me a long time to ignore it, but when I think of it, suddenly forget I have learned this thing, in this, really is to think of all a little blush .... －。 －！ ；

Recording:

Related class Description:

(1) Avaudioplayer

(2) Setting

<1>avnumberofchannelskey Number of channels

<2>avsampleratekey Sample Rate 44100

<3>avlinearpcmbitdepthkey bit LV 16 32

<4>avencoderaudioqualitykey Quality

<5>avencoderbitratekey bit sampling LV 128000

(3) Use

1. Initialization

2. Start recording

3. Stop Recording

Nonsense not much to say, we directly on the code;

How to Record

-(void) Startaudiorecoder: (UIButton *) sender{

/**

URL: is a local url,recodeer requires a stored path

*/

sender.selected =!sender.selected;

if (Sender.selected!=yes) {

[Recorder stop];

Return

}

NSString * name = [NSString stringwithformat:@ "%d.aiff", (int) [NSDate date].timeintervalsince1970];

NSString *path = [[Nssearchpathfordirectoriesindomains (Nscachesdirectory, Nsuserdomainmask, YES) LastObject] Stringbyappendingpathcomponent:name];

Nserror *error;

Recorder = [[Avaudiorecorder alloc]initwithurl:[nsurl Urlwithstring:path] settings:@{avnumberofchannelskey:@2, avsampleratekey:@44100,avlinearpcmbitdepthkey:@32,avencoderaudioqualitykey:@ (AVAudioQualityMax), avencoderbitratekey:@128000} error:&error];

/**

* Avnumberofchannelskey channel number is usually dual Channel 2

* Avsampleratekey sampling rate Hertz-"44100

* Avlinearpcmbitdepthkey Bit rate 8 16 24 32

* The quality of the avencoderaudioqualitykey sound needs to be an enumeration

Avaudioqualitymin = 0,

Avaudioqualitylow = 0x20,

Avaudioqualitymedium = 0x40,

Avaudioqualityhigh = 0x60,

Avaudioqualitymax = 0x7F

* Avencoderbitratekey audio encoded bit rate bps transfer rate 128000bps

*/

[Recorder Preparetorecord];

[Recorder record];

NSLog (@ "%@", Path);

}

Call at the end of the recording

-(void) audiorecorderdidfinishrecording: (Avaudiorecorder *) Recorder successfully: (BOOL) flag{

Where to store files

NSString *path = [Nssearchpathfordirectoriesindomains (nscachesdirectory, Nsuserdomainmask, YES) lastObject];

I'm here. The class that references the file operation

Nsfilemanager *manager = [Nsfilemanager Defaultmanager];

Get the files under all paths

Nsarray *pathlist = [manager Subpathsatpath:path];

Nsmutablearray *audiopathlist = [Nsmutablearray array];

For (NSString *audiopath in pathList) {

Differentiate between files that are needed by comparing extension names

if ([Audiopath.pathextension isequaltostring:@ "AIFF"]) {

Put the filtered files in the array

[Audiopathlist Addobject:audiopath];

}

}

NSLog (@ "%@", audiopathlist);

}

Must remember, I have learned the recording, can not learn after and did not learn the same, it is a sin ancient;;;;;;;;;

Recording of iOS development