Bark scale equalizer design using warped filter

نویسندگان

  • Peng Wang
  • Wee Ser
  • Ming Zhang
چکیده

Bark scale (also called critical band rate in literature) has attracted increasing attention among audio engineers as a good measurement of the frequency resolving ability of human auditory system. In this paper, warped filter technique has been applied on Bark scale to construct an equalizer for a low-cost loudspeaker system. The resulted equalizer displays overall better equalization effect than the conventional deconvolution-based equalizer in the conducted simulation.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Multichannel Dynamic-Range Compression Using Digital Frequency Warping

A multichannel dynamic-range compressor system using digital frequency warping is described. A frequency-warped filter is realized by replacing the filter unit delays with all-pass filters. The appropriate design of the frequency warping gives a nonuniform frequency representation very close to the auditory Bark scale. The warped compressor is shown to have substantially reduced group delay in ...

متن کامل

Perceptual Atomic noise

A noise synthesis method with no external connotation is proposed. By creating atoms with random width, onset-time and frequency, most external connotations are avoided. The further addition of a frequency distribution corresponding to the perceptual Bark frequency, and a spectrum corresponding to the equalloudness contour for a given phon level further removes the synthesis from the common sig...

متن کامل

Frequency-Warped and Stabilized Time-Varying Cepstral Coefficients

This paper presents a set of cepstral parameters based on timevarying linear prediction. The lattice filter structure is utilized to accommodate efficient stabilization of models and a Bark-like warped frequency scale. As the proposed cepstral features are based on non-stationary spectral analysis there is a potential for complementary information not captured in conventional features. In class...

متن کامل

Near-Perfect Reconstruction Oversampled Nonuniform Cosine-Modulated Filter Banks Based on Frequency Warping and Subband Merging

A novel method for designing near-perfect reconstruction oversampled nonuniform cosine-modulated filter banks is proposed, which combines frequency warping and subband merging, and thus offers more flexibility than known techniques. On the one hand, desirable frequency partitionings can be better approximated. On the other hand, at the price of only a small loss in partitioning accuracy, both w...

متن کامل

Equalization of Loudspeaker and Room Responses Using Kautz Filters: Direct Least Squares Design

DSP-based correction of loudspeaker and room responses is becoming an important part of improving sound reproduction. Such response equalization (EQ) is based on using a digital filter in cascade with the reproduction channel to counteract the response errors introduced by loudspeakers and room acoustics. Several FIR and IIR filter design techniques have been proposed for equalization purposes....

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2001