Revision as of 16:00, 28 June 2025 edit IrisChronomia (talk \| contribs) Extended confirmed users, IP block exemptions 1,289 edits →Standard sampling precision and rates: wikilinking "benefits [of 96/192k sampling rate] have been debated" to HiRes#Controversy Tag: Visual edit ← Previous edit		Revision as of 16:01, 28 June 2025 edit undo IrisChronomia (talk \| contribs) Extended confirmed users, IP block exemptions 1,289 edits →Limitations: "300 hz to 3400 hz" -> "300 to 3400 hz" Tag: Visual edit Next edit →
Line 140: ==Limitations== The [[Nyquist–Shannon sampling theorem]] shows PCM devices can operate without introducing distortions within their designed frequency bands if they provide a sampling frequency at least twice that of the highest frequency contained in the input signal. For example, in [[telephony]], the usable [[voice frequency]] band ranges from approximately 300 to 3400 [[Hz]] ~~to 3400 Hz~~.<ref>https://www.its.bldrdoc.gov/fs-1037/dir-039/_5829.htm{{fv\|reason=This source says 4k\|date=August 2020}}</ref> For effective reconstruction of the voice signal, telephony applications therefore typically use an 8000 Hz sampling frequency which is more than twice the highest usable voice frequency. Regardless, there are potential sources of impairment implicit in any PCM system:

Pulse-code modulation: Difference between revisions