The Haskins Laboratories' pulse code modulation (PCM) system.
| Number | 733 |
|---|---|
| Year | 1990 |
| Drawer | 13 |
| Entry Date | 11/15/1999 |
| Authors | Whalen, D. H., Wiley, E. R., Rubin, P. E., & Cooper, F. S. |
| Contact | |
| Publication | Behavior Research Methods, Instruments, & Computers, 22(6), 550-559. |
| url | http://www.haskins.yale.edu/Reprints/HL0733.pdf |
| Abstract | The Pulse Code Modulation (PCM) method of digitizing analog signals has become a standard both in digital audio & in speech research. The solutions to some problems encountered in Haskins Laboratories' earlier systems & the general properties of A/D conversion are outlined. Specialized features of the Haskins Laboratories' current system are also detailed: the Nyquist filter response; the high frequency pre-emphasis filter characteristics; the dynamic range; the timing resolution, for single & (synchronized) dual channel signals; & the form of the digitized speech files (header information, data, & label structure). Although the solutions are not intended to be considered a standard, the design principles are of interest to users & creators of other PCM systems. Adapted from the source document. |
| Notes |
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