Title :
A multiband exponential rate operator for musical transient analysis
Author :
Mani, Ramamurthy ; Nawab, S. Hamid
Author_Institution :
Dept. of Electr. & Comput. Sci., Boston Univ., MA, USA
Abstract :
The exponential rate operator (ERO) is presented for determining the “instantaneous exponential rate” of the amplitude modulation during musical transients. Its extension to multiband signal representations such as STFT and wavelet transforms is also described. Sensitivity of the ERO to white noise is examined and computational efficiency of the STFT-based ERO is discussed. Examples involving synthetic and real musical transients illustrate the usefulness of ERO analysis
Keywords :
acoustic signal processing; amplitude modulation; fast Fourier transforms; music; signal representation; transient analysis; wavelet transforms; white noise; FFT algorithm; STFT; amplitude modulation; computational efficiency; instantaneous exponential rate; multiband exponential rate operator; multiband signal representation; musical transient analysis; musical transients; signal analysis; wavelet transforms; white noise; Band pass filters; Computational efficiency; Discrete wavelet transforms; Filtering; Frequency modulation; Signal analysis; Signal representations; Transient analysis; Wavelet transforms; White noise;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1995. ICASSP-95., 1995 International Conference on
Print_ISBN :
0-7803-2431-5
DOI :
10.1109/ICASSP.1995.480461
