Performance of discrete fourier transform with small overlap in transform-predictive-coding-based coders

In this paper, we evaluate the performance of Discrete Fourier Transform with small overlap in Transform-Predictive-Coding-based coders — e.g. Transform Coder eXcitation (TCX) and Transform Predictive Coding (TPC). Three different time-frequency analysis techniques are compared : the Discrete Fourier Transform, the Modified Discrete Cosine Transform (MDCT) with 50% overlap and the Discrete Fourier Transform with 3% overlap. We show how a DFT with small overlap is more attractive, in a transform-predictive-coding based coder, than a simple DFT or a high frequency resolution MDCT.