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Diffstat (limited to 'source/use_case/kws/include/DsCnnMfcc.hpp')
-rw-r--r-- | source/use_case/kws/include/DsCnnMfcc.hpp | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/source/use_case/kws/include/DsCnnMfcc.hpp b/source/use_case/kws/include/DsCnnMfcc.hpp new file mode 100644 index 0000000..3f681af --- /dev/null +++ b/source/use_case/kws/include/DsCnnMfcc.hpp @@ -0,0 +1,50 @@ +/* + * Copyright (c) 2021 Arm Limited. All rights reserved. + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef KWS_DSCNN_MFCC_HPP +#define KWS_DSCNN_MFCC_HPP + +#include "Mfcc.hpp" + +namespace arm { +namespace app { +namespace audio { + + /* Class to provide DS-CNN specific MFCC calculation requirements. */ + class DsCnnMFCC : public MFCC { + + public: + static constexpr uint32_t ms_defaultSamplingFreq = 16000; + static constexpr uint32_t ms_defaultNumFbankBins = 40; + static constexpr uint32_t ms_defaultMelLoFreq = 20; + static constexpr uint32_t ms_defaultMelHiFreq = 4000; + static constexpr bool ms_defaultUseHtkMethod = true; + + explicit DsCnnMFCC(const size_t numFeats, const size_t frameLen) + : MFCC(MfccParams( + ms_defaultSamplingFreq, ms_defaultNumFbankBins, + ms_defaultMelLoFreq, ms_defaultMelHiFreq, + numFeats, frameLen, ms_defaultUseHtkMethod)) + {} + DsCnnMFCC() = delete; + ~DsCnnMFCC() = default; + }; + +} /* namespace audio */ +} /* namespace app */ +} /* namespace arm */ + +#endif /* KWS_DSCNN_MFCC_HPP */
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