Starts the recorder and records for a specified amount of time. (BOOL)recordForDuration: (NSTimeInterval)duration This method also prepares the system for recording. Table 12.6 Methods to control audio recordingĬreates the recording file on disk at the specified URL path. Theses properties include recording of type BOOL and soundRecorder of type AVAudioRecorder:
#Avrecorder recording skips code#
The code assumes you’ve created a few global properties.
#Avrecorder recording skips how to#
The following code shows how to make a simple toggleRecord method that can be used as an IBAction for a button. Table 12.6 lists all the methods you can call on a recorder to control the recording session. Controlling the audio recorderĪfter you construct an AVAudioRecorder, you have quite a bit of control over it. This path is converted to an NSURL during the construction of the recorder.
This is an NSString that points to a file named recording.caf in the Documents directory. Listing 12.3 Initialization code for AVAudioRecorder The next listing demonstrates how to build an AVAudioRecorder object with some basic settings. All of these settings are optional and have default values you can use them to fine-tune your audio recording. You can specify quite a few other settings when creating your recorder. You can set this value to 1.Ī key that refers to the quality of the audio being played. The number of channels expressed as an NSNumber integer value. Table 12.5 Basic audio settings for AVAudioRecorderĪ sample rate, in Hertz, expressed as an NSNumber floatingpoint value.Ī format identifier. Table 12.5 lists some of the settings that you may want to consider when setting up your recorder. The next parameter is an NSDictionary that contains the settings for the recording. In most cases, you’ll want to store recordings in the Documents directory. Although it’s expressed as an NSURL, it’s really a local path that points to a location on disk.
The first parameter is the location where the recording will be stored. It allows you to specify the location on disk to record the audio to as well as provide various audio settings. The constructor you should use is initWithURL:settings: error. This is to reduce complexity, because this class requires quite a bit of configuration. When you’re initializing a new AVAudioRecorder object, you should avoid using the default constructor init. We’ll look at how to initialize and control the audio reader and also how to respond to its associated events. In order to use these classes, you must add AVFoundation. You can find all the classes for recording audio in the AV Foundation framework. This means before the holidays start I have 1 working day (not including today) and then starting from (the first working day after the holiday week) I have another 9 working days left to complete the task/record.In this section, you’ll learn how to record audio by building a demo app with AVFoun-dation framework.ĪVFoundation framework is really easy to use for a simple audio recording or playing task. But the holiday period runs from - 31/012020. I have an SLA starting today for 10 days. If it does, I then need to work out how many days of the SLA have been worked prior to the holidays starting and then add on the remainder to the first working day after the holidays.
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