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IrvingGao committed 2024-05-18 15:50:56 +08:00
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runtime/csharp/AliFsmnVad/AliFsmnVadSharp.Examples/Program.cs
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using AliFsmnVadSharp;
using AliFsmnVadSharp.Model;
using NAudio.Wave;
internal static class Program
{
[STAThread]
private static void Main()
{
string applicationBase = AppDomain.CurrentDomain.BaseDirectory;
string modelFilePath = applicationBase + "./speech_fsmn_vad_zh-cn-16k-common-pytorch/model.onnx";
string configFilePath = applicationBase + "./speech_fsmn_vad_zh-cn-16k-common-pytorch/vad.yaml";
string mvnFilePath = applicationBase + "./speech_fsmn_vad_zh-cn-16k-common-pytorch/vad.mvn";
int batchSize = 2;
TimeSpan start_time0 = new TimeSpan(DateTime.Now.Ticks);
AliFsmnVad aliFsmnVad = new AliFsmnVad(modelFilePath, configFilePath, mvnFilePath, batchSize);
TimeSpan end_time0 = new TimeSpan(DateTime.Now.Ticks);
double elapsed_milliseconds0 = end_time0.TotalMilliseconds - start_time0.TotalMilliseconds;
Console.WriteLine("load model and init config elapsed_milliseconds:{0}", elapsed_milliseconds0.ToString());
List<float[]> samples = new List<float[]>();
TimeSpan total_duration = new TimeSpan(0L);
for (int i = 0; i < 2; i++)
{
string wavFilePath = string.Format(applicationBase + "./speech_fsmn_vad_zh-cn-16k-common-pytorch/example/{0}.wav", i.ToString());//vad_example
if (!File.Exists(wavFilePath))
{
continue;
}
AudioFileReader _audioFileReader = new AudioFileReader(wavFilePath);
byte[] datas = new byte[_audioFileReader.Length];
_audioFileReader.Read(datas, 0, datas.Length);
TimeSpan duration = _audioFileReader.TotalTime;
float[] wavdata = new float[datas.Length / 4];
Buffer.BlockCopy(datas, 0, wavdata, 0, datas.Length);
float[] sample = wavdata.Select((float x) => x * 32768f).ToArray();
samples.Add(wavdata);
total_duration += duration;
}
TimeSpan start_time = new TimeSpan(DateTime.Now.Ticks);
//SegmentEntity[] segments_duration = aliFsmnVad.GetSegments(samples);
SegmentEntity[] segments_duration = aliFsmnVad.GetSegmentsByStep(samples);
TimeSpan end_time = new TimeSpan(DateTime.Now.Ticks);
Console.WriteLine("vad infer result:");
foreach (SegmentEntity segment in segments_duration)
{
Console.Write("[");
foreach (var x in segment.Segment)
{
Console.Write("[" + string.Join(",", x.ToArray()) + "]");
}
Console.Write("]\r\n");
}
double elapsed_milliseconds = end_time.TotalMilliseconds - start_time.TotalMilliseconds;
double rtf = elapsed_milliseconds / total_duration.TotalMilliseconds;
Console.WriteLine("elapsed_milliseconds:{0}", elapsed_milliseconds.ToString());
Console.WriteLine("total_duration:{0}", total_duration.TotalMilliseconds.ToString());
Console.WriteLine("rtf:{1}", "0".ToString(), rtf.ToString());
Console.WriteLine("------------------------");
}
}