Handbook for Sound Engineers

Delay 815

References

1. H. Haas, “The Influence of a Single Echo on the Audibility of Speech,” J. Audio Eng. Soc., Vol. 20 (March 1972),
   pp. 145–159.


2. L. G. Heller, W. H. Chang, A. W. Lo, “A Model of Charge Transfer in Bucket Brigade and Charge-Coupled
   Devices,” IBM Journal of Research and Development, Vol. 16, no. 2, p. 184, 1972.

Figure 24-19. Sigma-delta modulators.

X(t)

+

+

Integrator Quantizer

Modulator

Sampler

Demodulator

Low

pass

filter

m(t)

fs

m(t)

A. First order.

Integrator Integrator Quantizer Sampler

X(t) +

+

Second loop

Inner loop

B. Second order.

+

+ fs