public Stream GetSampleStream(int sampleRate, int channels)
{
if (channels != 1 && channels != 2)
{
throw new ArgumentOutOfRangeException(nameof(channels), "Only 1 or 2 channels are allowed.");
}
using (var reader = new MediaFoundationReader(_path))
{
ISampleProvider sampler = new WdlResamplingSampleProvider(reader.ToSampleProvider(), sampleRate);
switch (channels)
{
case 1:
sampler = sampler.ToMono();
break;
case 2:
sampler = sampler.ToStereo();
break;
}
return(new SamplerWrapper(sampler));
}
}
public async Task <IActionResult> Test()
{
try
{
var file = Request.Form.Files.First();
int outRate = 44000;
var source = new RawSourceWaveStream(file.OpenReadStream(), new WaveFormat(outRate, 2));
using (var wavFileReader = new WaveFileReader(source))
{
var resampler = new WdlResamplingSampleProvider(wavFileReader.ToSampleProvider(), 16000);
var monoSource = resampler.ToMono().ToWaveProvider16();
using (var outputStream = new MemoryStream())
{
WaveFileWriter.WriteWavFileToStream(outputStream, monoSource);
outputStream.Seek(0, SeekOrigin.Begin);
var result = await client.VerifyAsync(outputStream, Guid.Parse("fb786241-9f01-41cc-a585-50b65bd52c38"));
if (result.Result == Result.Accept)
{
// verification successful
}
}
}
}
catch (Exception e)
{
int x = 1;
}
return(Ok());
}
public EventDrivenResampler(WaveFormat input, WaveFormat output)
{
windowsN = DetectWindowsN();
this.input = input;
this.output = output;
buf = new BufferedWaveProvider(input);
buf.ReadFully = false;
if (windowsN)
{
mediaFoundationResampler = new WdlResamplingSampleProvider(buf.ToSampleProvider(), output.SampleRate);
waveOut = mediaFoundationResampler.ToMono().ToWaveProvider16();
}
else
{
dmoResampler = new ResamplerDmoStream(buf, output);
}
}
public async Task <Enrollment> VoiceEnrollmentPost()
{
try
{
var file = Request.Form.Files.First();
int outRate = 44000;
var source = new RawSourceWaveStream(file.OpenReadStream(), new WaveFormat(outRate, 2));
using (var wavFileReader = new WaveFileReader(source))
{
var resampler = new WdlResamplingSampleProvider(wavFileReader.ToSampleProvider(), 16000);
var monoSource = resampler.ToMono().ToWaveProvider16();
using (var outputStream = new MemoryStream())
{
WaveFileWriter.WriteWavFileToStream(outputStream, monoSource);
outputStream.Seek(0, SeekOrigin.Begin);
// Todo - Fix hard coded response as getting TooNoisy error from service!
//var response = await client.EnrollAsync(outputStream, Guid.Parse("fb786241-9f01-41cc-a585-50b65bd52c38"));
//return response;
return(new Enrollment
{
RemainingEnrollments = 2,
EnrollmentsCount = 1,
Phrase = "Houston, we have had a problem"
});
}
}
}
catch
{
// nada
}
return(null);
}
public EventDrivenResampler(bool windowsN, WaveFormat input, WaveFormat output)
{
this.windowsN = windowsN;
this.input = input;
this.output = output;
buf = new BufferedWaveProvider(input);
buf.ReadFully = false;
if (output.BitsPerSample > input.BitsPerSample)
{
bufferMultiplier = 2;
}
if (windowsN)
{
mediaFoundationResampler = new WdlResamplingSampleProvider(buf.ToSampleProvider(), output.SampleRate);
waveOut = mediaFoundationResampler.ToMono().ToWaveProvider16();
}
else
{
dmoResampler = new ResamplerDmoStream(buf, output);
}
}