A Comparative Study of Performance of Fpga Based Mel Filter Bank & Bark Filter Bank

A comparative study of performance of fpga based mel filter bank & bark filter bank

The sensitivity of human ear is dependent on frequency which is nonlinearly resolved across the audio spectrum .Now to improve the recognition performance in a similar non linear approach requires a front end design, suggested by empirical evidences. A popular alternative to linear prediction based analysis is therefore filter bank analysis since this provides a much more straightforward route ...

Modified Mel Filter Bank to Compute MFCC of Subsampled Speech

Mel Frequency Cepstral Coefficients (MFCCs) are the most popularly used speech features in most speech and speaker recognition applications. In this work, we propose a modified Mel filter bank to extract MFCCs from subsampled speech. We also propose a stronger metric which effectively captures the correlation between MFCCs of original speech and MFCC of resampled speech. It is found that the pr...

Linear - to - Mel Freq . Filter Bank Conversion Fourier Transform

Efficient Non-linear Changed Mel-filter Bank VAD Algorithm

This paper introduces efficient non-linear changed mel-filter bank (MFB) voice activity detection (VAD) algorithm. Non-linear changed mel-filter bank outputs improve detection of parts in the speech signal, where vowels, diphthongs and semivowels are present. To make voice activity detection of consonants in the speech signal as good as possible, the hangover and hangbefore criteria are used. F...

Filter Bank – Based Multicarrier Modulation

Even though we do have on going research on traditional OFDM/DMT techniques, part of our research in multicarrier communication concentrates on filter bank-based multicarrier modulation. We refer to this as cosine-modulated filter bank multicarrier modulation (CMFB-MCM) or cosine-modulated multitone (CMT), for a shorter terminology. In the past, under the name discrete wavelet multitone (DWMT) ...