This library calculates fine-grained constant-Q spectral representations of audio signals quickly from Java. The spectral transform can be visualized or further processed in a (Music Information Retrieval) processing chain.
The calculation of a Gabor transform is done by a C library named Gaborator. A Java native interface (JNI) bridge to the C Gaborator is provided here. A combination of Gaborator and a fast FFT library (such as pfft) allows fine grained constant-Q transforms at a rate of about 200 times real-time on moderate hardware.
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