Talk:Electret microphone

Professional sound production High‑importance

	This article is within the scope of WikiProject Professional sound production, a collaborative effort to improve the coverage of sound recording and reproduction on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Professional sound productionWikipedia:WikiProject Professional sound productionTemplate:WikiProject Professional sound productionProfessional sound production articles
High	This article has been rated as High-importance on the project's importance scale.

Timing?

How can electret microphones be around since the 1920s if they were invented in 1962? — Omegatron 14:48, 6 September 2006 (UTC)[reply]

It looks like the article is saying that the materials/ideas have been around since the 1920s, but they weren't implemented successfully until 1962. Joe056 18:44, 10 August 2007 (UTC)[reply]

Electret materials were known about in the 1920s and their use in microphones had been suggested, but it wasn't until 1962 that anybody was able to make a practical microphone that used them.Elekas (talk) 05:23, 20 November 2007 (UTC)[reply]

Reconcile with Electret Article

This page needs to be reconciled with the electret article. Basically, all of paragraphs 2 thru 4 are about electrets, and really should be in that article (to which this article should refer). 204.4.13.72 (talk) 02:59, 13 November 2008 (UTC)[reply]

help please?

hello, does anyone know how large average ones are, like the ones pictured? the article doesn't mention anything about their size.

thank you Ostrich11 (talk) 08:31, 6 February 2009 (UTC)[reply]

There needs to be a section that describes the loss of electret polarizing voltage over time. I have some electret microphones from the early 70's and their sensitivity has decreased significantly. This deterioration is not happening in real condensor microphones. Any comments?

Front Electret?

Front electrets are mentioned in a few documents, such as US patent 7292696 and in http://www.digikey.com/Web%20Export/Supplier%20Content/PUI_668/PDF/PUI_ElectretCondenserMicrophone%20Basics.pdf . But how many actually exist? I don't recall seeing any. This one: http://www.algoodwell.com/cgi-bin/ngen_details.pl?UCODE=250685&LANG=&LOOP=PROD is supposedly a "front electret", but how do we know it is this new structure, rather than the manufacturer using "front electric" to denote it is not a "back electret"? Robin Whittle (talk) 13:13, 17 September 2009 (UTC)[reply]

Plug-in power

Electret mics with plug-in power are unfortunately not addressed in this article. Please update! Thanks, Maikel (talk) 13:45, 11 November 2012 (UTC) I think 'Plug In Power' was (1990's?) just a Sony term for a conventional electret microphone to plug into their cassette tape recorders - ie requiring +2-3 volts down the signal lead to power the FET. 109.144.24.124 (talk) 18:26, 12 April 2021 (UTC)[reply]

How do they compare?

I'd like to see a comparison to other microphone types. Sensitivity, frequency response, power requirements, preferred applications; feel free to include information about general microphone construction for context. Thanks 75.110.106.45 (talk) 17:33, 5 October 2015 (UTC)[reply]

External links modified

Hello fellow Wikipedians,

I have just added archive links to one external link on Electret microphone. Please take a moment to review my edit. You may add {{cbignore}} after the link to keep me from modifying it, if I keep adding bad data, but formatting bugs should be reported instead. Alternatively, you can add {{nobots|deny=InternetArchiveBot}} to keep me off the page altogether, but should be used as a last resort. I made the following changes:

Attempted to fix sourcing for http://www.bell-labs.com/org/1133/Heritage/Foil/

When you have finished reviewing my changes, please set the checked parameter below to true or failed to let others know (documentation at {{Sourcecheck}}).

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—^{cyberbot II}_{Talk to my owner:Online} 19:21, 28 March 2016 (UTC)[reply]

Is this a copyvio?

I posted a negative review of a company on TrustPilot and the reply seems to have text copied from this article without attribution. I noticed as I had been reading teh same article trying to work out if it was an electret microphone. https://uk.trustpilot.com/reviews/5a54a05fa5b3290dec39a201?utm_swu=8205 I am sure they were just in a hurry and didn't have time to quote the source correctly but I believe sometimes this can cause problems as someone might think we copied it from them. Is there anything needs to be done here, or am I just like a Dutch boy with his finger in the dyke unable to stem the flood?Billlion (talk) 16:22, 10 January 2018 (UTC)[reply]

Early Electret Microphones

During World War II the Japanese used carnuba wax in a back electret microphone for many of their small radio transmitters. As these fed vacuum tube amplifiers the high impedance was not an issue.

Carnuba wax is charged as an electret by placing it in a high voltage field while it transitions from liquid to solid. 2600:1016:B003:2BBB:783F:F950:1B24:4B5C (talk) 11:26, 5 December 2022 (UTC)[reply]