407 lines
11 KiB
C#
407 lines
11 KiB
C#
using System;
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using System.IO;
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using UnityEngine;
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using UnityEngine.Events;
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using UnityEngine.UI;
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using System.Collections;
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public class MicroPhoneManager : MonoBehaviour
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{
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public static MicroPhoneManager instance;
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public int DeviceLength;
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/// <summary>
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/// 录音频率
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/// </summary>
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public string Frequency = "44100";
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public int Samplerate = 44100;
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/// <summary>
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/// 最长录音时长（半小时）
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/// </summary>
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int MaxSecond = 1800;
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/// <summary>
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/// 实际录音时长
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/// </summary>
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public int realTime = 0;
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/// <summary>
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/// 文件夹路径
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/// </summary>
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string filePath;
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AudioSource _curAudioSource;
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public void Awake()
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{
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instance = this;
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}
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public AudioSource Init()
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{
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if (_curAudioSource == null)
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{
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_curAudioSource = this.gameObject.AddComponent<AudioSource>();
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}
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else
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{
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_curAudioSource = GetComponent<AudioSource>();
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}
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return _curAudioSource;
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}
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//AudioSource CurAudioSource
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//{
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// get
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// {
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// if (_curAudioSource == null)
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// {
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// _curAudioSource = gameObject.AddComponent<AudioSource>();
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// }
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// return _curAudioSource;
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// }
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//}
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#region ［public Way］
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//public Text text;
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//public Button startBtn, endBtn, recordBtn, getSoundData, getDevice;
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void Start()
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{
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//startBtn.onClick.AddListener(StartRecordAudio);
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//endBtn.onClick.AddListener(StopRecordAudio);
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//recordBtn.onClick.AddListener(PlayRecordAudio);
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//getSoundData.onClick.AddListener(PrintRecordData);
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//getDevice.onClick.AddListener(GetMicrophoneDevice);
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}
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/// <summary>
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/// 获取麦克风设备
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/// </summary>
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public bool GetMicrophoneDevice()
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{
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string[] mDevice = Microphone.devices;
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DeviceLength = mDevice.Length;
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if (DeviceLength == 0)
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{
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ShowInfoLog("找不到麦克风设备！");
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return false;
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}
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else
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{
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Debug.Log("找到麦克风....." + mDevice[0]);
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return true;
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}
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}
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/// <summary>
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/// 开始录音
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/// </summary>
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public void StartRecordAudio()
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{
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_curAudioSource.Stop();
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_curAudioSource.loop = false;
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_curAudioSource.mute = true;
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_curAudioSource.clip = Microphone.Start(null, true, MaxSecond, int.Parse(Frequency));
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while (!(Microphone.GetPosition(null) > 0))
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{
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}
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_curAudioSource.Play();
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realTime = 0; // 录音计时
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if (IsInvoking("startTime"))
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CancelInvoke("startTime");
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InvokeRepeating("startTime", 1, 1);
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ShowInfoLog("开始录音.....");
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}
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/// <summary>
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/// 停止录音
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/// </summary>
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public bool StopRecordAudio()
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{
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if (realTime>0)
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{
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ShowInfoLog("结束录音.....");
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if (!Microphone.IsRecording(null))
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return false;
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Microphone.End(null);
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_curAudioSource.Stop();
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//WriteHeader(CreateEmpty(Path.Combine( Application.streamingAssetsPath,"AuidoFiles","test.wav")), _curAudioSource.clip);
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PrintRecordData();
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//using (FileStream fs = CreateEmpty(Application.persistentDataPath + "/dd.wav"))
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//{
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// ConvertAndWrite(fs, _curAudioSource.clip);
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// WriteHeader(fs, _curAudioSource.clip);
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//}
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if (IsInvoking("startTime"))
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CancelInvoke("startTime");
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ShowInfoLog(realTime + "s");
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return true;
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}
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else
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{
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Debug.Log("录音时长太短");
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return false;
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}
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}
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public void Stop()
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{
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ShowInfoLog("结束录音.....");
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if (!Microphone.IsRecording(null))
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return;
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Microphone.End(null);
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_curAudioSource.Stop();
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}
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/// <summary>s
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/// 回放录音
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/// </summary>
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public void PlayRecordAudio()
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{
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if (Microphone.IsRecording(null))
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return;
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if (_curAudioSource.clip == null)
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return;
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_curAudioSource.mute = false;
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_curAudioSource.loop = false;
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_curAudioSource.Play();
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ShowInfoLog("播放录音.....");
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}
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void startTime()
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{
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++realTime;
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RobotUI.Instance.recordTime = realTime;
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ShowInfoLog("realTime: " + realTime);
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if (realTime >= MaxSecond)
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{
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//若超出最大时间限制，则保存上传文件，接着上传下一次
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//ULog.Log("超出最大时间，重新监听上传");
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StopRecordAudio();
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StartRecordAudio();
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}
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else
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{
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}
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}
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///// <summary>
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///// 打印录音信息
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///// </summary>
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public void PrintRecordData()
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{
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if (Microphone.IsRecording(null))
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return;
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byte[] data = GetClipData();
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#region 用户自由固定录音时长
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int position = _curAudioSource.clip.samples / MaxSecond * realTime;
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var soundata = new float[_curAudioSource.clip.samples * _curAudioSource.clip.channels];
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_curAudioSource.clip.GetData(soundata, 0);
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var newdata = new float[position * _curAudioSource.clip.channels];
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for (int i = 0; i < newdata.Length; i++)
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{
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newdata[i] = soundata[i];
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}
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if (realTime>0)
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{
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_curAudioSource.clip = AudioClip.Create(_curAudioSource.clip.name, position, _curAudioSource.clip.channels, _curAudioSource.clip.frequency, false);
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_curAudioSource.clip.SetData(newdata, 0);
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}
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Microphone.End(null);
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#endregion
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using (FileStream fs = CreateEmpty(Application.persistentDataPath + "/dd.wav"))
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{
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ConvertAndWrite(fs, _curAudioSource.clip);
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WriteHeader(fs, _curAudioSource.clip);
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}
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}
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void WriteHeader(FileStream stream, AudioClip clip)
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{
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int hz = clip.frequency;
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int channels = clip.channels;
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int samples = clip.samples;
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stream.Seek(0, SeekOrigin.Begin);
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Byte[] riff = System.Text.Encoding.UTF8.GetBytes("RIFF");
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stream.Write(riff, 0, 4);
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Byte[] chunkSize = BitConverter.GetBytes(stream.Length - 8);
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stream.Write(chunkSize, 0, 4);
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Byte[] wave = System.Text.Encoding.UTF8.GetBytes("WAVE");
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stream.Write(wave, 0, 4);
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Byte[] fmt = System.Text.Encoding.UTF8.GetBytes("fmt ");
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stream.Write(fmt, 0, 4);
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Byte[] subChunk1 = BitConverter.GetBytes(16);
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stream.Write(subChunk1, 0, 4);
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UInt16 two = 2;
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UInt16 one = 1;
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Byte[] audioFormat = BitConverter.GetBytes(one);
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stream.Write(audioFormat, 0, 2);
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Byte[] numChannels = BitConverter.GetBytes(channels);
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stream.Write(numChannels, 0, 2);
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Byte[] sampleRate = BitConverter.GetBytes(hz);
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stream.Write(sampleRate, 0, 4);
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Byte[] byteRate = BitConverter.GetBytes(hz * channels * 2); // sampleRate * bytesPerSample*number of channels, here 44100*2*2
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stream.Write(byteRate, 0, 4);
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UInt16 blockAlign = (ushort)(channels * 2);
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stream.Write(BitConverter.GetBytes(blockAlign), 0, 2);
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UInt16 bps = 16;
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Byte[] bitsPerSample = BitConverter.GetBytes(bps);
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stream.Write(bitsPerSample, 0, 2);
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Byte[] datastring = System.Text.Encoding.UTF8.GetBytes("data");
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stream.Write(datastring, 0, 4);
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Byte[] subChunk2 = BitConverter.GetBytes(samples * channels * 2);
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stream.Write(subChunk2, 0, 4);
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}
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FileStream CreateEmpty(string filepath)
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{
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ShowInfoLog("录音文件路径为 : " + filepath);
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FileStream fileStream = new FileStream(filepath, FileMode.Create);
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byte emptyByte = new byte();
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for (int i = 0; i < 44; i++) //preparing the header
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{
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fileStream.WriteByte(emptyByte);
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}
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return fileStream;
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}
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void ConvertAndWrite(FileStream fileStream, AudioClip clip)
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{
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float[] samples = new float[clip.samples];
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clip.GetData(samples, 0);
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Int16[] intData = new Int16[samples.Length];
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Byte[] bytesData = new Byte[samples.Length * 2];
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int rescaleFactor = 32767; //to convert float to Int16
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for (int i = 0; i < samples.Length; i++)
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{
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intData[i] = (short)(samples[i] * rescaleFactor);
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Byte[] byteArr = new Byte[2];
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byteArr = BitConverter.GetBytes(intData[i]);
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byteArr.CopyTo(bytesData, i * 2);
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}
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fileStream.Write(bytesData, 0, bytesData.Length);
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}
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/// <summary>
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/// 获取音频数据
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/// </summary>
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/// <returns>The clip data.</returns>
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public byte[] GetClipData()
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{
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if (_curAudioSource.clip == null)
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{
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ShowInfoLog("缺少音频资源！");
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return null;
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}
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float[] samples = new float[_curAudioSource.clip.samples];
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_curAudioSource.clip.GetData(samples, 0);
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byte[] outData = new byte[samples.Length * 2];
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int reScaleFactor = 32767;
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for (int i = 0; i < samples.Length; i++)
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{
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short tempShort = (short)(samples[i] * reScaleFactor);
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byte[] tempData = System.BitConverter.GetBytes(tempShort);
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outData[i * 2] = tempData[0];
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outData[i * 2 + 1] = tempData[1];
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}
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if (outData == null || outData.Length <= 0)
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{
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ShowInfoLog("获取音频数据失败！");
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return null;
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}
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return outData;
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}
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#endregion
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//void OnGUI()
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//{
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// if (DeviceLength == 0)
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// {
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// if (ShowGUIButton("获取麦克风设备"))
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// {
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// GetMicrophoneDevice();
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// }
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// }
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// else if (DeviceLength > 0)
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// {
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// GUILayout.Label("录音频率:");
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// Frequency = GUILayout.TextField(Frequency, GUILayout.Width(Screen.width / 5), GUILayout.Height(Screen.height / 20));
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// GUILayout.BeginVertical();
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// if (ShowGUIButton("开始录音"))
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// {
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// StartRecordAudio();
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// }
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// if (ShowGUIButton("结束录音"))
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// {
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// StopRecordAudio();
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// }
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// if (ShowGUIButton("回放录音"))
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// {
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// PlayRecordAudio();
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// }
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// if (ShowGUIButton("获取录音数据"))
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// {
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// PrintRecordData();
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// }
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// GUILayout.EndVertical();
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// }
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// GUILayout.Label(infoLog);
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//}
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#region [Private Way]
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/// <summary>
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/// 显示GUI 按钮
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/// </summary>
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/// <returns><c>true</c>, if GUI button was shown, <c>false</c> otherwise.</returns>
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/// <param name="buttonName">Button name.</param>
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//bool ShowGUIButton(string buttonName)
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//{
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// return GUILayout.Button(buttonName, GUILayout.Height(Screen.height / 20), GUILayout.Width(Screen.width / 5));
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//}
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void ShowInfoLog(string info)
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{
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Debug.Log(info);
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}
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#endregion
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}
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