Digital Signal Processing - Pitch Detection (MATLAB)

Digital Signal Processing - Pitch Detection (MATLAB) Project Description: The pitch of an audio signal is an important parameter in the analysis of the information contained in the signal. The pitch of a typical information-bearing signal such as speech varies constantly and can sometimes be difficult to identify without resorting to computationally intensive analysis techniques. Another common difficulty with robust pitch detection is that its value can sometimes be close to or equal to the frequency of the first formant, particularly for female or young voices. The purpose of the proposed project is to investigate the key design criteria for an efficient real-time pitch detector. These criteria will include the principles and software implementation of the lowlevel signal capture, analysis and display as well as an intuitive user-interface design. Expected Procedure: 1. Familiarize yourself with the principles of pitch detection (and document it). 2. Familiarize yourself with the existing pitch detectors in the Opus codec (and document it). 3. Based on 1 and 2 above, design an efficient pitch detector which you think will be a good addition to the Opus codec. 4. Implement the above design in Matlab and document the process.