void testSampleRate()
{
int ret = SampleRateDll.src_is_valid_ratio(0.05f);
int inCnt = 44100;
float[] samples = new float[inCnt];
for (int i = 0; i < inCnt; ++i)
{
samples[i] = 0.1f;
}
int outCnt;
float[] outSamples;
//long outCnt = 8000;
//float[] outSamples = new float[outCnt];
int result = SampleRateDll.call_src_simple_plain(samples, out outSamples, inCnt, out outCnt, (float)outCnt / (float)inCnt, (int)SampleRateConvertType.SRC_SINC_FASTEST, 1);
Debug.Log("finished: " + result + ", " + outSamples[4000]);
}
void testRecognition()
{
VoiceRecognition v = GetComponent <VoiceRecognition>();
Debug.Log("aaaaaaaa");
v.init((bool inited_) => {
Debug.Log("bbbbbbbb: " + inited_);
// convert pcm to float
int total = pcmFile.bytes.Length / 2;
float[] pcms;
SampleRateDll.convertPCMInt16ToFloat(pcmFile.bytes, total, out pcms);
// upsample to 44100
//int upSampleCnt = (int)(44100.0f / 8000.0f * total);
//float[] upBuffer = new float[upSampleCnt];
int upSampleCnt;
float[] upBuffer;
upSampleCnt = SampleRateDll.call_src_simple_plain(pcms, out upBuffer, total, out upSampleCnt, 44100f / 8000f, (int)SampleRateConvertType.SRC_SINC_FASTEST, 1);
// downsample to 8000
//int downSampleCnt = (int)(upSampleCnt * (8000f / 44100f));
//float[] downBuffer = new float[downSampleCnt];
int downSampleCnt;
float[] downBuffer;
downSampleCnt = SampleRateDll.call_src_simple_plain(upBuffer, out downBuffer, upSampleCnt, out downSampleCnt, 8000f / 44100f, (int)SampleRateConvertType.SRC_SINC_FASTEST, 1);
// convert pcm to int16
byte[] final;
SampleRateDll.convertPCMFloatToInt16(downBuffer, (int)downSampleCnt, out final);
v.getVoiceStr(final, (string result_) =>
{
Debug.Log("result: " + result_);
v.getVoiceStr(final, (string another_) =>
{
Debug.Log("another: " + another_);
});
});
});
}
