Efficiency analysis of one class of uniform linear phase filter banks

Pantic, Radoslav D.

doi:10.1109/telfor.2012.6419559

Cited by 2 publications

(2 citation statements)

References 7 publications

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“…If the number of channels increases, the requirements for the selectivity of critical masking filter increases also. Therefore, delay of that masking filter and overall delay of the filter bank can be intolerably long in the case of filter bank with increased number of channels [7]. …”

Section: Filter Banks Structuresmentioning

confidence: 99%

Digital filter banks with approximately liner phase

Certic

Lutovac

Milić

2012

2012 20th Telecommunications Forum (TELFOR)

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In this paper uniform and nonuniform digital filter banks based on approximately linear phase IIR filters and frequency response masking technique (FRM) are presented. Both solutions are realized as a connection of interpolated half-band approximately linear phase IIR filter as a first stage filter of the FRM design and appropriate number of masking filters. Masking filters are half-band IIR filters with approximately linear phase. Filter banks are compared with linear phase FIR filter banks with similar magnitude responses.Keywords -approximately linear phase IIR filters, FRM, non-uniform filter bank, uniform filter bank. Fig. 3. Eight-channel nonuniform filter bank based on approximately linear phase IIR filters.

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Section: Filter Banks Structuresmentioning

confidence: 99%

Digital filter banks with approximately liner phase

Certic

Lutovac

Milić

2012

2012 20th Telecommunications Forum (TELFOR)

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“…More effort was invested in the development of uniform digital filter bank for hearing aid and audio applications [5], [6], [7], [8]. Digital Filter banks are used widely in digital hearing aids [9] in order to decompose a wide band signal in to sub-bands. Digital filter banks directly designed using linear phase FIR filters requires high order filters which increases the computational complexity and overall delay of filter bank, [10].…”

Section: Introductionmentioning

confidence: 99%

Efficient uniform digital filter bank with linear phase and FRM technique for hearing aids

Parameshappa¹,

Jayadevapp²

2018

IJET

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This paper attempts to present an uniform digital filter bank based on linear phase FIR and IIR filters applied for Frequency Response Masking (FRM) technique in hearing aid applications.In the proposed filter bank, nine uniformly spaced sub-bands are formed with the help of half band filters and masking filters. These nine channel FIR filter bank is realized using an interpolated half band linear phase FIR filter and an appropriate number of masking FIR filters. The nine channel IIR filter bank is realized using an interpolated half band approximately linear phase IIR filter and an appropriate number of masking filters. The proposed approximately linear phase IIR half band filter bank is compared with filter bank based on linear phase FIR half band filters in terms of area, power, memory and number of gates needed for implementation. The experiment was carried on various hearing loss cases and the results obtained from these tests proves that, the proposed filter bank achieved the required matching between audiograms and magnitude response of the filter bank at very reasonable range with less computational complexity.

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Efficiency analysis of one class of uniform linear phase filter banks

Cited by 2 publications

References 7 publications

Digital filter banks with approximately liner phase

Digital filter banks with approximately liner phase

Efficient uniform digital filter bank with linear phase and FRM technique for hearing aids

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