freq_scales.hpp

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// toolboxes/audio/include/nk/audio/scale/freq_scales.hpp
//
// Frequency-scale conversions (Mel / Bark / ERB / phon-sone) used in
// audio feature extraction. All elementwise, double in / out.
 
#pragma once
 
#include <memory_resource>
#include <nk/value/value.hpp>
 
namespace nk::audio {

 

Value hz2mel(const Value &hz, std::pmr::memory_resource *mr = nullptr);

Value mel2hz(const Value &mel, std::pmr::memory_resource *mr = nullptr);

Value hz2bark(const Value &hz, std::pmr::memory_resource *mr = nullptr);

Value bark2hz(const Value &bark, std::pmr::memory_resource *mr = nullptr);

Value hz2erb(const Value &hz, std::pmr::memory_resource *mr = nullptr);

Value erb2hz(const Value &erb, std::pmr::memory_resource *mr = nullptr);

Value phon2sone(const Value &phon,
                bool standardIs532_2 = false,
                std::pmr::memory_resource *mr = nullptr);

Value sone2phon(const Value &sone,
                bool standardIs532_2 = false,
                std::pmr::memory_resource *mr = nullptr);
 

} // namespace nk::audio