Program.cs
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// Copyright (c) 2025 Xiaomi Corporation
//
// This file shows how to use speech enhancement API with GTCRN models.
//
// 1. Download a model from
// https://github.com/k2-fsa/sherpa-onnx/releases/tag/speech-enhancement-models
//
// wget https://github.com/k2-fsa/sherpa-onnx/releases/download/speech-enhancement-models/gtcrn_simple.onnx
//
// 2. Download a test file
//
// wget https://github.com/k2-fsa/sherpa-onnx/releases/download/speech-enhancement-models/inp_16k.wav
//
// 3. Now run it
//
// dotnet run
using SherpaOnnx;
class OfflineSpeechEnhancementDemo
{
static void Main(string[] args)
{
var config = new OfflineSpeechDenoiserConfig();
config.Model.Gtcrn.Model = "./gtcrn_simple.onnx";
config.Model.Debug = 1;
config.Model.NumThreads = 1;
var sd = new OfflineSpeechDenoiser(config);
WaveReader waveReader = new WaveReader("./inp_16k.wav");
var denoisedAudio = sd.Run(waveReader.Samples, waveReader.SampleRate);
var outputFilename = "./enhanced-16k.wav";
var ok = denoisedAudio.SaveToWaveFile(outputFilename);
if (ok)
{
Console.WriteLine($"Wrote to {outputFilename} succeeded!");
}
else
{
Console.WriteLine($"Failed to write {outputFilename}");
}
}
}