Apparatus and method for measuring quality of audio

摘要

Disclosed herein is an apparatus and method for measuring quality of audio. The apparatus includes a distorted signal generation unit, an extraction unit, a distortion level measurement unit, a distortion function generation unit, and a search and measurement unit. The distorted signal generation unit generates a plurality of distorted signals with respect to audio in compliance. The extraction unit extracts a fingerprint and AV information corresponding to the audio and fingerprints and AV information corresponding to the plurality of distorted signals. The distortion level measurement unit measures fingerprint distance differences, and arousal and valence (AV) distance differences. The distortion function generation unit generates a fingerprint distortion function and an AV distortion function. The search and measurement unit measures the quality of the audio by extracting a fingerprint and AV information from query audio and then comparing extraction results with the fingerprint distortion function or AV distortion function.

主权项

1. An apparatus for measuring quality of audio, comprising:
a storage; and a processor configured to:
generate a plurality of distorted signals with respect to the audio in compliance with preset distortion standards;extract a fingerprint and arousal and valence (AV) information corresponding to the audio;extract fingerprints and AV information corresponding to the plurality of distorted signals; measure fingerprint distance differences between the fingerprint corresponding to the audio and the fingerprints corresponding to the plurality of distorted signals;
measure AV distance differences between the AV information corresponding to the audio and the AV information corresponding to the plurality of distorted signals;generate a fingerprint distortion function and an AV distortion function based on a distribution corresponding to the fingerprint distance differences and a distribution corresponding to the AV distance differences, the fingerprint distortion function and the AV distortion function being stored in the storage; and measure the quality of the audio by extracting a fingerprint and AV information from query audio and then comparing extraction results with the fingerprint distortion function or AV distortion function.