Talk:Pulse-code modulation

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Nomenclature?

The word pulse in the term Pulse Width Modulation is somewhat confusing, as there appear to be no "pulses" per se anywhere to be found.

I believe this should read 'Pulse Code Modulation'. Please confirm. — Preceding unsigned comment added by Ktims (talk • contribs) 09:37, 21 June 2006‎ (UTC)[reply]

High Definition Media

From what I have read, many Blu-ray movies have PCM soundtracks. But HD DVD? I don't think ANY of my HD DVD movies have a PCM soundtrack. I am not sure "many" applies to HD DVD PCM soundtracks. — Preceding unsigned comment added by 75.71.201.149 (talk) 12:05, 25 October 2007‎ (UTC)[reply]

Floating point PCM

PCM is usually assumed to be integers, but also includes floating point samples. Is the definition basically "samples encoded as binary"? So it could use some other encoding scheme like Unum (number format) and still be PCM? https://www.kvraudio.com/forum/viewtopic.php?t=520701 — Omegatron (talk) 16:59, 6 June 2020 (UTC)[reply]

LPCM

Could someone who understands this please provide a more detailed explanation?
Perhaps a diagram - the sine wave diagram is very nice but I am having trouble relating this to LPCM... — Preceding unsigned comment added by 207.81.124.137 (talk) 02:45, 12 January 2022 (UTC)[reply]

Proposed Addition: Ronald Hugh Barker’s Contributions to PCM Applications

I’d like to propose the following brief paragraph for inclusion in the History section of this article. It introduces Ronald Hugh Barker, a British physicist and engineer, who made early practical contributions to the use of pulse-code modulation (PCM) during the post-war period, particularly within military and radar systems. He is also credited with the invention of the Barker code in 1953, which remains widely used.

Proposed Text: Windswept (talk) 14:48, 21 April 2025 (UTC) Ronald Hugh Barker, while less publicly known than contemporaries such as Alan Turing, Tommy Flowers, or Alec Reeves, played a pioneering role in the early development of British digital communications. Working at the Signals Research and Development Establishment (SRDE), he was instrumental in the practical application of pulse-code modulation, particularly in telemetry for guided weapons and early digital radar systems. He is best known for the invention of the Barker code in 1953, a binary sequence that remains in use for synchronisation in radar, telemetry, and digital communication systems."Ronald Hugh Barker (1915–2015)". The IET. Retrieved 2025-04-21. Barker’s work also included early digital techniques that anticipated features of modern air traffic control, speech encryption systems, and rotary encoders.IET Archives (2024-05-08). "The Story of Roy Barker: A Physicist with 70 Years of Membership". IET Archives Blog. Retrieved 2025-04-21.[reply]

This aims to highlight lesser-known figures in PCM development and is fully referenced to reliable sources (IET). Feedback welcome.

Thanks! Windswept (talk) 14:48, 21 April 2025 (UTC)[reply]