Avaudiorecorder Recording Processing

The Avaudiorecorder class is dedicated to handling recording operations and can provide audio recording capabilities in your application. Recordings can only be saved to local files. It is included in the Avfoundation Framework library.

The following are common properties and methods:

Property	Description
@property (readonly, getter=isrecording) BOOL recording	Whether audio is being recorded (read-only)
@property (readonly) Nsurl *url	Audio file path (read only)
@property (nonatomic, copy) Nsarray *channelassignments	An array of Avaudiosessionchanneldescription objects associated with the recorder
@property (readonly) Nstimeinterval currenttime	Recording duration (read only), can only be used when recording, when the recording stops, straight to 0
@property (readonly) Nstimeinterval Devicecurrenttime	Enter the length of the setting, read-only, and note that this property is accessible all the time
@property (readonly) nsdictionary *settings	Audio settings for audio recorders. (Read only)
@property (getter=ismeteringenabled) BOOL meteringenabled	Whether to enable recording measurement, if you enable recording measurement can obtain data such as decibel recording
Method	Description
-(Instancetype) Initwithurl: (nsurl *) URL settings: (nsdictionary *) settings error: (Nserror *) outerror	How to initialize the Sound Recorder object, the URL must be a local file URL
-(BOOL) Preparetorecord	Preparing recordings, primarily for creating caches
-(BOOL) record	Start recording
-(BOOL) Recordattime: (nstimeinterval) time	Start recording at a specified time,
-(BOOL) Recordforduration: (nstimeinterval) duration	Start recording according to the specified length of time
-(BOOL) Recordattime: (nstimeinterval) Time forduration: (nstimeinterval) duration	Start recording at a specified time and specify the length of the recording
-(void) Pause	Pause Recording
-(void) stop	Stop Recording
-(BOOL) deleterecording	Delete the recording, note that the recorder must be in a stopped state at this time
Proxy method	Description
-(void) audiorecorderdidfinishrecording: (Avaudiorecorder *) Recorder successfully: (BOOL) flag	End of recording
-(void) Audiorecorderencodeerrordidoccur: (Avaudiorecorder *) Recorder error: (NSERROR *) error	Audio Codec error occurred

When you create a sound recorder, you must specify the recording settings information in addition to the path, because the recorder must know the format of the recording file, the sample rate, the number of channels, and so on.

Avaudiorecorder Recording Processing