using System.Collections;
using System.Collections.Generic;
using UnityEngine;
[RequireComponent (typeof (AudioSource))]
public class GetMicrophone: MonoBehaviour {
public AudioSource m_audioSource; // 用來錄音的
public Microphone microphone; // 麥克風參數
public string[] device; // 麥克風設備名稱
public int devicePos = 0; // 設備位置
public int minFreq = int.MaxValue, maxFreq = int.MinValue; // 取得麥克風的最小值以及最大值頻率
public float volume;
public float[] microphoneSamles;
public float Volume {
get {
if (Microphone.IsRecording (device[devicePos])) {
// 取得的樣本數量
int sampleSize = 128;
float[] samples = new float[sampleSize];
int startPosition = Microphone.GetPosition (device[devicePos]) - (sampleSize + 1);
// 得到資料
this.m_audioSource.clip.GetData (samples, startPosition);
microphoneSamles = samples;
// Getting a peak on the last 128 samples
float levelMax = 0;
for (int i = 0; i < sampleSize; i++) {
float wavePeek = samples[i];
if (levelMax < wavePeek) {
levelMax = wavePeek;
}
}
return levelMax * 99;
}
return 0;
}
}
private void Awake () {
m_audioSource = GetComponent<AudioSource> ();
device = Microphone.devices; // get device name
// To warn if have no microphone detected
if (device.Length == 0) { Debug.LogWarning ("No microphone input."); }
}
private void Start () {
StartCaptureVoice ();
}
private void Update () {
volume = Volume;
}
private void OnDestroy () {
StopCaptureVoice ();
}
private void OnDisable () {
StopCaptureVoice ();
}
private void StartCaptureVoice () {
// get microphone frequency
Microphone.GetDeviceCaps (device[devicePos], out minFreq, out maxFreq);
// set audio source
m_audioSource.clip = Microphone.Start (device[devicePos], true, 3599, maxFreq);
m_audioSource.loop = true;
m_audioSource.timeSamples = Microphone.GetPosition (device[devicePos]);
}
private void StopCaptureVoice () {
if (!Microphone.IsRecording (device[devicePos])) {
return;
}
Microphone.End (device[devicePos]);
m_audioSource.Stop ();
}
}
參考資料:
Unity Microphone 錄音時 檢測聲音大小 - IT閱讀
(https://www.itread01.com/content/1541861893.html)
Unity Microphone 录音时 检测声音大小 - gabo - 开发者的网上家园
(https://www.cnblogs.com/gabo/p/4421281.html)
[Unity手札]Microphone三部曲(一) — How to do | by Chris Lin | Medium
(https://medium.com/@chrislin1015/unity%E6%89%8B%E6%9C%AD-microphone%E4%B8%89%E9%83%A8%E6%9B%B2-%E4%B8%80-how-to-do-bc0b93d37abb)
