Audio Similarity Evaluator, Audio Encoder, Methods And Computer Program

Abstract: ABSTRACT AUDIO SIMILARITY EVALUATOR, AUDIO ENCODER, METHODS AND COMPUTER PROGRAM An audio similarity evaluator obtains envelope signals for a plurality of frequency 5 ranges on the basis of an input audio signal. The audio similarity evaluator is configured to obtain a modulation information associated with the envelope signals for a plurality of modulation frequency ranges, wherein the modulation information describes the modulation of the envelope signals. The audio similarity evaluator is configured to compare the obtained modulation information with a reference 10 modulation information associated with a reference.audio signal, in order to obtain an information about a similarity between the input audio, signal and the reference audio signal. An audio encoder uses such an audio similarity evaluator. Another audio similarity evaluator uses a neural net trained using the audio similarity evaluator.

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