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Unity使用sherpa-onnx实现说话人识别

news 来源：原创 2025/5/20 8:48:33

网友软绵绵的面包人推荐，模型3dspeaker_speech_eres2net_base_200k_sv_zh-cn_16k-common.onnx的效果比3dspeaker_speech_eres2net_base_sv_zh-cn_3dspeaker_16k.onnx要好

在这里插入图片描述

具体代码

using System;
using System.Collections.Generic;
using System.IO;
using SherpaOnnx;
using UnityEngine;public class SpeakerIdentification : MonoBehaviour
{SpeakerEmbeddingExtractor extractor;SpeakerEmbeddingManager manager;string pathRoot;string modelPath;OfflineSpeechDenoiser offlineSpeechDenoiser = null;string[] testFiles;// Start is called before the first frame updatevoid Start(){pathRoot = Util.GetPath();modelPath = pathRoot + "/3dspeaker_speech_eres2net_base_200k_sv_zh-cn_16k-common.onnx";}public void Init(){OfflineSpeechDenoiserGtcrnModelConfig osdgmc = new OfflineSpeechDenoiserGtcrnModelConfig();osdgmc.Model = pathRoot + "/gtcrn_simple.onnx";OfflineSpeechDenoiserModelConfig osdmc = new OfflineSpeechDenoiserModelConfig();osdmc.NumThreads = 1;osdmc.Provider = "cpu";osdmc.Debug = 0;osdmc.Gtcrn = osdgmc;OfflineSpeechDenoiserConfig osdc = new OfflineSpeechDenoiserConfig();osdc.Model = osdmc;offlineSpeechDenoiser = new OfflineSpeechDenoiser(osdc);//byte[] bytes = File.ReadAllBytes(pathRoot + "/xuefei.wav");//float[] data = BytesToFloat(bytes);//DenoisedAudio denoisedAudio = offlineSpeechDenoiser.Run(data, 16000);//if (denoisedAudio.SaveToWaveFile(pathRoot + "/xuefei1.wav"))//{//}var config = new SpeakerEmbeddingExtractorConfig();config.Model = modelPath;config.Debug = 1;extractor = new SpeakerEmbeddingExtractor(config);manager = new SpeakerEmbeddingManager(extractor.Dim);var spk1Files =new string[] {pathRoot+"/xuefei1.wav",};var spk1Vec = new float[spk1Files.Length][];for (int i = 0; i < spk1Files.Length; ++i){spk1Vec[i] = ComputeEmbedding(extractor, spk1Files[i]);}// 给注册音频降噪一下//byte[] bytes = File.ReadAllBytes(pathRoot + "/xuefei1.wav");//float[] data = BytesToFloat(bytes);//DenoisedAudio denoisedAudio = offlineSpeechDenoiser.Run(data, 16000);//if (denoisedAudio.SaveToWaveFile(pathRoot + "/xuefei1.wav"))//{//}//注册说话人if (!manager.Add("xuefei", spk1Vec)){Debug.LogError("Failed to register xuefei");}var allSpeakers = manager.GetAllSpeakers();foreach (var s in allSpeakers){Debug.Log(s);}//验证测试testFiles =new string[] {pathRoot+"/test1.wav",pathRoot+"/test2.wav",pathRoot+"/test3.wav",};float threshold = 0.6f;foreach (var file in testFiles){var embedding = ComputeEmbedding(extractor, file);var name = manager.Search(embedding, threshold);if (name == ""){name = "<Unknown>";}Debug.Log(file + " :" + name);} }/// <summary>/// 说话人识别 用的临时数据/// </summary>List<float> audioData = new List<float>();public void AcceptData(float[] data){audioData.AddRange(data);}float threshold = 0.6f;public void Search(){ string filePath = pathRoot + "/" + DateTime.Now.ToFileTime().ToString() + ".wav";//DenoisedAudio denoisedAudio = offlineSpeechDenoiser.Run(audioData.ToArray(), 16000); //if (denoisedAudio.SaveToWaveFile(filePath))//{//}Util.SaveClip(1, 16000, audioData.ToArray(), filePath);var embedding = ComputeEmbedding(extractor, filePath);string name = manager.Search(embedding, threshold);if (name == ""){name = "<Unknown>";}Debug.Log("name:" + name);audioData.Clear();}public float[] ComputeEmbedding(SpeakerEmbeddingExtractor extractor, string filename){byte[] bytes = File.ReadAllBytes(filename);float[] data = BytesToFloat(bytes);var stream = extractor.CreateStream();stream.AcceptWaveform(16000, data);stream.InputFinished();var embedding = extractor.Compute(stream);return embedding;}public float[] ComputeEmbedding(SpeakerEmbeddingExtractor extractor, int sample, float[] data){var stream = extractor.CreateStream();stream.AcceptWaveform(sample, data);stream.InputFinished();var embedding = extractor.Compute(stream);return embedding;}public float[] BytesToFloat(byte[] byteArray){float[] sounddata = new float[byteArray.Length / 2];for (int i = 0; i < sounddata.Length; i++){sounddata[i] = BytesToFloat(byteArray[i * 2], byteArray[i * 2 + 1]);}return sounddata;}private float BytesToFloat(byte firstByte, byte secondByte){//小端和大端顺序要调整short s;if (BitConverter.IsLittleEndian)s = (short)((secondByte << 8) | firstByte);elses = (short)((firstByte << 8) | secondByte);// convert to range from -1 to (just below) 1return s / 32768.0F;}
}