项目地址:https://github.com/zhuyunlongYL/YLBaseChat
typealias PlayerDidFinishPlayingBlock = () -> Void
class VoiceManager:NSObject{
// 单例
static let shared = VoiceManager()
private override init(){}
var duration:Int = 0 // 录音时间
var recorder_file_path:String? = nil // 录音路径
fileprivate var recorder: AVAudioRecorder? = nil
fileprivate var player: AVAudioPlayer? = nil
fileprivate var timer:Timer? = nil
fileprivate var pathTag:Int = 0
fileprivate var completeBlock:PlayerDidFinishPlayingBlock?
deinit {
timer?.invalidate()
timer = nil
}
// 是否使用扬声器
func isProximity(_ isProximity:Bool) {
do {
if isProximity {
try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback)
}else {
try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayAndRecord)
}
} catch let err {
print("设置扬声器失败:\(err.localizedDescription)")
}
}
//开始录音
func beginRecord() {
duration = 0
let session = AVAudioSession.sharedInstance()
//设置session类型
do {
try session.setCategory(AVAudioSessionCategoryPlayAndRecord)
} catch let err{
print("设置类型失败:\(err.localizedDescription)")
}
//设置session动作
do {
try session.setActive(true)
} catch let err {
print("初始化动作失败:\(err.localizedDescription)")
}
//录音设置，注意，后面需要转换成NSNumber，如果不转换，你会发现，无法录制音频文件，我猜测是因为底层还是用OC写的原因
let recordSetting: [String: Any] = [AVSampleRateKey: NSNumber(value: 16000),//采样率
AVFormatIDKey: NSNumber(value: kAudioFormatLinearPCM),//音频格式
AVLinearPCMBitDepthKey: NSNumber(value: 16),//采样位数
AVNumberOfChannelsKey: NSNumber(value: 1),//通道数
AVEncoderAudioQualityKey: NSNumber(value: AVAudioQuality.min.rawValue)//录音质量
];
//开始录音
do {
recorder_file_path = getFilePath()
if let file_path = recorder_file_path {
let url = URL(fileURLWithPath: file_path)
recorder = try AVAudioRecorder(url: url, settings: recordSetting)
recorder?.isMeteringEnabled = true
recorder!.prepareToRecord()
recorder!.record()
timer = Timer.scheduledTimer(timeInterval: 1.0, target: self, selector: (#selector(VoiceManager.recordingTime)), userInfo: nil, repeats: true)
print("开始录音")
}
} catch let err {
print("录音失败:\(err.localizedDescription)")
}
}
//结束录音
func stopRecord() {
timer?.invalidate()
timer = nil
if let recorder = recorder {
if recorder.isRecording {
if let file_path = recorder_file_path {
print("正在录音，马上结束它，文件保存到了：\(file_path)")
}
}else {
print("没有录音，但是依然结束它")
}
recorder.stop()
self.recorder = nil
}else {
print("没有初始化")
}
}
// 取消录音
func cancelRecord() {
stopRecord()
if let file_path = recorder_file_path {
try? FileManager.default.removeItem(at: URL(fileURLWithPath: file_path))
print("删除录音:\(file_path)")
}
}
// 录音获取音量
func getRecordVolume() -> Float {
var level:Float = 0.0
if let recorder = recorder {
if recorder.isRecording {
recorder.updateMeters()
//获取音量的平均值 [recorder averagePowerForChannel:0];
//音量的最大值 [recorder peakPowerForChannel:0];
let minDecibels:Float = -80.0
let decibels:Float = recorder.peakPower(forChannel: 0)
if decibels < minDecibels {
level = 0.0
}
else if decibels >= 0.0 {
level = 1.0
}else {
let root:Float = 2.0
let minAmp:Float = powf(10.0, 0.05 * minDecibels)
let inverseAmpRange:Float = 1.0 / (1.0 - minAmp)
let amp = powf(10.0, 0.05 * decibels)
let adjAmp = (amp - minAmp) * inverseAmpRange
level = powf(adjAmp, 1.0 / root)
}
}
}
print("录音音量大小0~1--\(level)")
return level
}
//播放
func play(_ path: String?,_ block: PlayerDidFinishPlayingBlock?) {
UIDevice.current.isProximityMonitoringEnabled = true
// 默认扬声器播放
isProximity(true)
do {
completeBlock = block
if let path = path {
player = try AVAudioPlayer(contentsOf: URL(fileURLWithPath: path))
player?.delegate = self
player?.prepareToPlay()
player!.play()
}
} catch let err {
UIDevice.current.isProximityMonitoringEnabled = false
print("播放失败:\(err.localizedDescription)")
}
}
//结束播放
func stopPlay() {
UIDevice.current.isProximityMonitoringEnabled = false
if let player = player {
if player.isPlaying {
print("停止播放")
}else {
print("没有播放")
}
player.stop()
completeBlock = nil
self.player?.delegate = nil
self.player = nil
}else {
print("没有初始化")
}
}
// 录音记时
@objc fileprivate func recordingTime() {
duration += 1
print("录音时间:\(duration)")
}
// 获取路径
fileprivate func getFilePath() -> String! {
pathTag += 1
if pathTag > 1000 {
pathTag = 0
}
return NSHomeDirectory() + "/Library/Caches/\(pathTag)-\(Date().timeIntervalSince1970).wav"
}
}
//// MARK: - AVAudioPlayerDelegate
extension VoiceManager:AVAudioPlayerDelegate {
func audioPlayerDidFinishPlaying(_ player: AVAudioPlayer, successfully flag: Bool) {
UIDevice.current.isProximityMonitoringEnabled = false
if let completeBlock = completeBlock {
completeBlock()
}
}
}
// 添加监听
// 监听用户耳朵靠近手机或者远离手机
NotificationCenter.default.addObserver(self, selector: #selector(BaseChatVC.proximitySensorChanged), name: NSNotification.Name.UIDeviceProximityStateDidChange, object: nil)
// 监听用户耳朵靠近手机或者远离手机
@objc fileprivate func proximitySensorChanged() {
if UIDevice.current.proximityState == true {
VoiceManager.shared.isProximity(false)
}else {
VoiceManager.shared.isProximity(true)
}
}