Virtual bass system with fuzzy separation of tones and transients

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference article in proceedingsScientificvertaisarvioitu

154 Lataukset (Pure)


A virtual bass system creates an impression of bass perception in sound systems with weak low-frequency reproduction, which is typical of small loudspeakers. Virtual bass systems extend the bandwidth of the low-frequency audio content using either a nonlinear function or a phase vocoder, and add the processed signal to the reproduced sound. Hybrid systems separate transients and steady-state sounds, which are processed separately. It is still challenging to reach a good sound quality using a virtual bass system. This paper proposes a novel method, which separates the tonal, transient, and noisy parts of the audio signal in a fuzzy way, and then processes only the transients and tones. Those upper harmonics, which can be detected above the cutoff frequency, are boosted using timbre-matched weights, but missing upper harmonics are generated to assist the missing fundamental phenomenon. Listening test results show that the proposed algorithm outperforms selected previous methods in terms of perceived bass sound quality. The proposed method can enhance the bass sound perception of small loudspeakers, such as those used in laptop computers and mobile devices.
OtsikkoProceedings of the International Conference on Digital Audio Effects
TilaJulkaistu - 9 syysk. 2020
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaInternational Conference on Digital Audio Effects - Virtual (Initially Vienna), Vienna, Itävalta
Kesto: 9 syysk. 202011 syysk. 2020
Konferenssinumero: 23


NimiProceedings of the International Conference on Digital Audio Effects
ISSN (painettu)2413-6700
ISSN (elektroninen)2413-6689


ConferenceInternational Conference on Digital Audio Effects


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