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Diffstat (limited to 'samples/SpeechRecognition/test/MFCCTest.cpp')
| -rw-r--r-- | samples/SpeechRecognition/test/MFCCTest.cpp | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/samples/SpeechRecognition/test/MFCCTest.cpp b/samples/SpeechRecognition/test/MFCCTest.cpp new file mode 100644 index 0000000000..2a552643d5 --- /dev/null +++ b/samples/SpeechRecognition/test/MFCCTest.cpp @@ -0,0 +1,102 @@ +// +// Copyright © 2020 Arm Ltd and Contributors. All rights reserved. +// SPDX-License-Identifier: MIT +// + +#include <catch.hpp> +#include <limits> + +#include "MFCC.hpp" + +const std::vector<float> testWav = std::vector<float>{ + -3.0f, 0.0f, 1.0f, -1.0f, 2.0f, 3.0f, -2.0f, 2.0f, + 1.0f, -2.0f, 0.0f, 3.0f, -1.0f, 8.0f, 3.0f, 2.0f, + -1.0f, -1.0f, 2.0f, 7.0f, 3.0f, 5.0f, 6.0f, 6.0f, + 6.0f, 12.0f, 5.0f, 6.0f, 3.0f, 3.0f, 5.0f, 4.0f, + 4.0f, 6.0f, 7.0f, 7.0f, 7.0f, 3.0f, 7.0f, 2.0f, + 8.0f, 4.0f, 4.0f, 2.0f, -4.0f, -1.0f, -1.0f, -4.0f, + 2.0f, 1.0f, -1.0f, -4.0f, 0.0f, -7.0f, -6.0f, -2.0f, + -5.0f, 1.0f, -5.0f, -1.0f, -7.0f, -3.0f, -3.0f, -7.0f, + 0.0f, -3.0f, 3.0f, -5.0f, 0.0f, 1.0f, -2.0f, -2.0f, + -3.0f, -3.0f, -7.0f, -3.0f, -2.0f, -6.0f, -5.0f, -8.0f, + -2.0f, -8.0f, 4.0f, -9.0f, -4.0f, -9.0f, -5.0f, -5.0f, + -3.0f, -9.0f, -3.0f, -9.0f, -1.0f, -7.0f, -4.0f, 1.0f, + -3.0f, 2.0f, -8.0f, -4.0f, -4.0f, -5.0f, 1.0f, -3.0f, + -1.0f, 0.0f, -1.0f, -2.0f, -3.0f, -2.0f, -4.0f, -1.0f, + 1.0f, -1.0f, 3.0f, 0.0f, 3.0f, 2.0f, 0.0f, 0.0f, + 0.0f, -3.0f, 1.0f, 1.0f, 0.0f, 8.0f, 3.0f, 4.0f, + 1.0f, 5.0f, 6.0f, 4.0f, 7.0f, 3.0f, 3.0f, 0.0f, + 3.0f, 6.0f, 7.0f, 6.0f, 4.0f, 5.0f, 9.0f, 9.0f, + 5.0f, 5.0f, 8.0f, 1.0f, 6.0f, 9.0f, 6.0f, 6.0f, + 7.0f, 1.0f, 8.0f, 1.0f, 5.0f, 0.0f, 5.0f, 5.0f, + 0.0f, 3.0f, 2.0f, 7.0f, 2.0f, -3.0f, 3.0f, 0.0f, + 3.0f, 0.0f, 0.0f, 0.0f, 2.0f, 0.0f, -1.0f, -1.0f, + -2.0f, -3.0f, -8.0f, 0.0f, 1.0f, 0.0f, -3.0f, -3.0f, + -3.0f, -2.0f, -3.0f, -3.0f, -4.0f, -6.0f, -2.0f, -8.0f, + -9.0f, -4.0f, -1.0f, -5.0f, -3.0f, -3.0f, -4.0f, -3.0f, + -6.0f, 3.0f, 0.0f, -1.0f, -2.0f, -9.0f, -4.0f, -2.0f, + 2.0f, -1.0f, 3.0f, -5.0f, -5.0f, -2.0f, 0.0f, -2.0f, + 0.0f, -1.0f, -3.0f, 1.0f, -2.0f, 9.0f, 4.0f, 5.0f, + 2.0f, 2.0f, 1.0f, 0.0f, -6.0f, -2.0f, 0.0f, 0.0f, + 0.0f, -1.0f, 4.0f, -4.0f, 3.0f, -7.0f, -1.0f, 5.0f, + -6.0f, -1.0f, -5.0f, 4.0f, 3.0f, 9.0f, -2.0f, 1.0f, + 3.0f, 0.0f, 0.0f, -2.0f, 1.0f, 2.0f, 1.0f, 1.0f, + 0.0f, 3.0f, 2.0f, -1.0f, 3.0f, -3.0f, 7.0f, 0.0f, + 0.0f, 3.0f, 2.0f, 2.0f, -2.0f, 3.0f, -2.0f, 2.0f, + -3.0f, 4.0f, -1.0f, -1.0f, -5.0f, -1.0f, -3.0f, -2.0f, + 1.0f, -1.0f, 3.0f, 2.0f, 4.0f, 1.0f, 2.0f, -2.0f, + 0.0f, 2.0f, 7.0f, 0.0f, 8.0f, -3.0f, 6.0f, -3.0f, + 6.0f, 1.0f, 2.0f, -3.0f, -1.0f, -1.0f, -1.0f, 1.0f, + -2.0f, 2.0f, 1.0f, 2.0f, 0.0f, -2.0f, 3.0f, -2.0f, + 3.0f, -2.0f, 1.0f, 0.0f, -3.0f, -1.0f, -2.0f, -4.0f, + -6.0f, -5.0f, -8.0f, -1.0f, -4.0f, 0.0f, -3.0f, -1.0f, + -1.0f, -1.0f, 0.0f, -2.0f, -3.0f, -7.0f, -1.0f, 0.0f, + 1.0f, 5.0f, 0.0f, 5.0f, 1.0f, 1.0f, -3.0f, 0.0f, + -6.0f, 3.0f, -8.0f, 4.0f, -8.0f, 6.0f, -6.0f, 1.0f, + -6.0f, -2.0f, -5.0f, -6.0f, 0.0f, -5.0f, 4.0f, -1.0f, + 4.0f, -2.0f, 1.0f, 2.0f, 1.0f, 0.0f, -2.0f, 0.0f, + 0.0f, 2.0f, -2.0f, 2.0f, -5.0f, 2.0f, 0.0f, -2.0f, + 1.0f, -2.0f, 0.0f, 5.0f, 1.0f, 0.0f, 1.0f, 5.0f, + 0.0f, 8.0f, 3.0f, 2.0f, 2.0f, 0.0f, 5.0f, -2.0f, + 3.0f, 1.0f, 0.0f, 1.0f, 0.0f, -2.0f, -1.0f, -3.0f, + 1.0f, -1.0f, 3.0f, 0.0f, 3.0f, 0.0f, -2.0f, -1.0f, + -4.0f, -4.0f, -4.0f, -1.0f, -4.0f, -4.0f, -3.0f, -6.0f, + -3.0f, -7.0f, -3.0f, -1.0f, -2.0f, 0.0f, -5.0f, -4.0f, + -7.0f, -3.0f, -2.0f, -2.0f, 1.0f, 2.0f, 2.0f, 8.0f, + 5.0f, 4.0f, 2.0f, 4.0f, 3.0f, 5.0f, 0.0f, 3.0f, + 3.0f, 6.0f, 4.0f, 2.0f, 2.0f, -2.0f, 4.0f, -2.0f, + 3.0f, 3.0f, 2.0f, 1.0f, 1.0f, 4.0f, -5.0f, 2.0f, + -3.0f, 0.0f, -1.0f, 1.0f, -2.0f, 2.0f, 5.0f, 1.0f, + 4.0f, 2.0f, 3.0f, 1.0f, -1.0f, 1.0f, 0.0f, 6.0f, + 0.0f, -2.0f, -1.0f, 1.0f, -1.0f, 2.0f, -5.0f, -1.0f, + -5.0f, -1.0f, -6.0f, -3.0f, -3.0f, 2.0f, 4.0f, 0.0f, + -1.0f, -5.0f, 3.0f, -4.0f, -1.0f, -3.0f, -4.0f, 1.0f, + -4.0f, 1.0f, -1.0f, -1.0f, 0.0f, -5.0f, -4.0f, -2.0f, + -1.0f, -1.0f, -3.0f, -7.0f, -3.0f, -3.0f, 4.0f, 4.0f +}; + +TEST_CASE("Test MFCC") +{ + int sampFreq = 16000; + int frameLenMs = 32; + int frameLenSamples = sampFreq * frameLenMs * 0.001; + int numMfccFeats = 13; + + std::vector<float> fullAudioData; + + for (auto f : testWav) + { + fullAudioData.emplace_back( f / (1<<15)); + } + + + MfccParams mfccParams(sampFreq, 128, 0, 8000, numMfccFeats, frameLenSamples, false, 1); + + MFCC mfccInst = MFCC(mfccParams); + auto mfccOutput = mfccInst.MfccCompute(fullAudioData); + + std::vector<float> expected = { -834.96564f, 21.02699f, 18.62856f, 7.3412f, 18.90791f, -5.36034f, 6.52351f, + -11.27064f, 8.37522f, 12.0672f, 8.30833f, -13.50008f, -18.1761f}; + + REQUIRE_THAT(mfccOutput, Catch::Approx(expected).epsilon(1.e-5) ); +}
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