是否有可能以编程方式静音iPhone？

import AVFoundation

// 静音
func muteAudio() {
    let audioSession = AVAudioSession.sharedInstance()
    do {
        try audioSession.setActive(false, options: .notifyOthersOnDeactivation)
    } catch {
        print("Error muting audio: \(error)")
    }
}

// 取消静音
func unmuteAudio() {
    let audioSession = AVAudioSession.sharedInstance()
    do {
        try audioSession.setActive(true, options: .notifyOthersOnDeactivation)
    } catch {
        print("Error unmuting audio: \(error)")
    }
}