Title :
Virtual bass system based on a multiband harmonic generation
Author :
Taegyu Lee ; Seokjin Lee ; Young-cheol Park ; Dae Hee Youn
Author_Institution :
Sch. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
In this paper we propose a method of creating virtual bass based on a multiband harmonic generation. The proposed algorithm separately generates harmonics for each band whose bandwidth is adaptively adjusted according to the tonal distribution in the bass signal. Both even and odd harmonics are generated by combining two nonlinear devices. The proposed algorithm overcomes the intermodulation distortion and spectral smearing problem that are often encountered in the previous algorithms. Results of objective and subjective tests are presented to validate the proposed algorithm.
Keywords :
acoustic signal processing; adaptive signal processing; audio signal processing; harmonic generation; intermodulation distortion; spectral analysis; adaptive bandwidth adjustment; bass signal; even harmonics generation; intermodulation distortion; multiband harmonic generation; nonlinear devices; odd harmonics generation; spectral smearing problem; tonal distribution; virtual bass system; Filter banks; Frequency conversion; Harmonic analysis; Intermodulation distortion; Power harmonic filters; Spectrogram; Transient analysis;
Conference_Titel :
Consumer Electronics (ICCE), 2013 IEEE International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4673-1361-2
DOI :
10.1109/ICCE.2013.6486947