Time-Frequency Characterization of Loudspeaker Responses Using Wavelet Analysis
An electro-acoustic transducer can be characterized by measuring its Impulse Response (IR). Usually the collected IR is then transformed by means of the Fourier Transform to get the complex frequency response. IR and complex frequency response form a pair of equivalent views of the same phenomena. An alternative joint time-frequency view of the system response can be achieved using Wavelet Transform and a color-map display. This work illustrates the implementation of the Wavelet Transform into a commercial measurement software and presents some practical results on different kinds of electro-acoustic systems.
Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.