c=phaselockreal(c,a,M);
phaselockreal(c,a,M) phaselocks the Gabor coefficients c. The coefficients must have been obtained from a dgtreal with parameter a.
Phaselocking the coefficients modifies them so as if they were obtained from a time-invariant Gabor system. A filter bank produces phase locked coefficients.
Please see help of phaselock for more details.
M. Puckette. Phase-locked vocoder. Applications of Signal Processing to Audio and Acoustics, 1995., IEEE ASSP Workshop on, pages 222 --225, 1995.