I was able to successfully install libsamplerate and libsndfile following instrucitons in INSTALL file in libsamplerate source file. But I keep facing these errors when importing the samplerate.h and using it.

I have part of the waveform and I want to resample that from 16000 to 32000 and below is the code I am using (since unable to attach a cpp file)

but I keep facing the error as below -

Executing task: C/C++: g++ build active file

Starting build... /usr/bin/g++ -fdiagnostics-color=always -g /Users/aganji155/Documents/akhil/ResamplingAudio/APP.cpp -o /Users/aganji155/Documents/akhil/ResamplingAudio/APP Undefined symbols for architecture x86_64: "_src_simple", referenced from: _main in APP-811664.o ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation)

Build finished with error(s).

Code -

include

include "libsamplerate-0.1.9/src/samplerate.h"

int main() { // Load audio waveform //const int inputSampleRate = 16000; //const int outputSampleRate = 16000; float waveform[100] = { -3.8146973e-03, -4.3029785e-03, -3.4179688e-03, -3.0517578e-03, -1.6174316e-03, -1.4038086e-03, -1.8310547e-04, 3.0517578e-04,1.4953613e-03, 1.2512207e-03, 2.8686523e-03, 2.8686523e-03,3.9367676e-03, 3.8146973e-03, 3.7231445e-03, 3.4484863e-03,2.8381348e-03, 2.1667480e-03, 1.7395020e-03, 3.3569336e-04,-1.2207031e-04, -1.1596680e-03, -1.1596680e-03, -2.5939941e-03,-2.4414062e-03, -3.3569336e-03, -3.3264160e-03, -4.0283203e-03,-3.2043457e-03, -2.4719238e-03, -2.1362305e-03, -1.5258789e-03,-3.6621094e-04, 4.5776367e-04, 1.2817383e-03, 1.5563965e-03,2.3498535e-03, 2.2277832e-03, 2.6245117e-03, 2.1972656e-03,2.2277832e-03, 8.5449219e-04, 9.7656250e-04, -1.5258789e-04,-9.1552734e-05, -1.2207031e-03, -9.7656250e-04, -8.5449219e-04,-1.1596680e-03, -6.4086914e-04, -4.2724609e-04, 0.0000000e+00, -3.9672852e-04, -5.7983398e-04, -5.7983398e-04, -4.2724609e-04,0.0000000e+00, 4.2724609e-04, 1.0070801e-03, 1.3732910e-03,1.6479492e-03, 2.1972656e-03, 2.4108887e-03, 2.6245117e-03,2.0446777e-03, 1.1901855e-03, 3.9672852e-04, -4.2724609e-04,-1.1291504e-03, -1.6174316e-03, -2.3803711e-03, -2.9602051e-03,-2.7465820e-03, -2.6855469e-03, -2.4414062e-03, -2.5939941e-03,-1.3427734e-03, -1.0986328e-03, 3.0517578e-05, 6.4086914e-04,1.6784668e-03, 1.4038086e-03, 1.5258789e-03, 1.4038086e-03,5.7983398e-04, 2.1362305e-04, 2.4414062e-04, 2.4414062e-04,4.8828125e-04, 1.1901855e-03, 8.8500977e-04, 1.1291504e-03,6.4086914e-04, 2.4414062e-04, -6.7138672e-04, -7.6293945e-04,-2.2277832e-03, -2.4414062e-03, -2.8381348e-03, -2.3498535e-03 }; // audio waveform data // SF_INFO inputSoundFileInfo; // SNDFILE* infile = nullptr; // infile = sf_open(filePath.c_str(), SFM_READ, &inputSoundFileInfo);

// float audioIn[inputSoundFileInfo.channels * inputSoundFileInfo.frames];
// sf_read_float(infile, audioIn, inputSoundFileInfo.channels * inputSoundFileInfo.frames);

float sampleRate = 16000.0f;
float outsamplerate = 32000.0f;
float srcRatio = sampleRate / outsamplerate;
int outputFrames = ceilf(100 * srcRatio);

// Convert to mono
std::vector<float> monoData(100);
for (int i = 0; i < 100; i++) // for (int i = 0; i < N; i++) -- N is replaced with 100 as it is waveform length I have
{
    for (int j = 0; j < 1; j++) // for (int j = 0; j < channels; j++)  -- channels is replaced with 1 since I already have monodata
        monoData[i] += waveform[i * 1 + j];
    monoData[i] /= 1;
}

// Resample
SRC_DATA srcData;
srcData.data_in = monoData.data();
srcData.input_frames = 100;

std::vector<float> dataOut(outputFrames);
srcData.data_out = dataOut.data();

srcData.output_frames = outputFrames;
srcData.src_ratio = srcRatio;

src_simple(&srcData, SRC_SINC_BEST_QUALITY, 1);

// sf_close(infile);

return 0;

}

Please help, i am stuck with this more than a week now.

libsndfile / libsamplerate

need help with resampling the waveform in macOS #197

include

include

include

include "libsamplerate-0.1.9/src/samplerate.h"