在斯威夫特录制音频 [英] Recording audio in Swift

问题描述

有谁知道在哪里可以找到关于如何在斯威夫特应用程序录制音频信息？我一直在寻找一些音频播放例子，但我不能似乎能够找到关于执行音频录制任何内容。谢谢

Does anyone know where I can find info on how to record audio in a Swift application? I've been looking at some of the audio playback examples but I can't seem to be able to find anything on implementing the audio recording. Thanks

推荐答案

下面为code.You可以记录easily.Write此code对 IBAction为 。它会被保存在文档记录按名称 recordTest.caf

Here is code.You can record easily.Write this code on IBAction.It will save the recording in Documents by name recordTest.caf

//declare instance variable 
var audioRecorder:AVAudioRecorder!


func record(){

    var audioSession:AVAudioSession = AVAudioSession.sharedInstance()
    audioSession.setCategory(AVAudioSessionCategoryPlayAndRecord, error: nil)
    audioSession.setActive(true, error: nil)

    var documents: AnyObject = NSSearchPathForDirectoriesInDomains( NSSearchPathDirectory.DocumentDirectory,  NSSearchPathDomainMask.UserDomainMask, true)[0]
    var str =  documents.stringByAppendingPathComponent("recordTest.caf")
    var url = NSURL.fileURLWithPath(str as String)

    var recordSettings = [AVFormatIDKey:kAudioFormatAppleIMA4,
        AVSampleRateKey:44100.0,
        AVNumberOfChannelsKey:2,AVEncoderBitRateKey:12800,
        AVLinearPCMBitDepthKey:16,
        AVEncoderAudioQualityKey:AVAudioQuality.Max.rawValue

    ]

    println("url : \(url)")
    var error: NSError?

    audioRecorder = AVAudioRecorder(URL:url, settings: recordSettings, error: &error)
    if let e = error {
        println(e.localizedDescription)
    } else {

        audioRecorder.record()
    }


}

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