Talk:Audio feedback

My last edit summary got cut off...

...But all I added was info on Morello, who does all kinds of crazy shit with feedback to make his solos. -albrozdude 02:57, 26 May 2006 (UTC)

Jesus and Mary Chain

surely the Jesus and Mary Chain deserve a mention on this page. Their debut LP Pyschocandy is drenched in feedback. 84.13.246.112 13:08, 12 September 2006 (UTC)

No, they don't (deserve a mention). Lots of far more notable artists have used feedback.

Atlant 13:22, 12 September 2006 (UTC)

While many other artists may meet with criteria of Notability far more-so than the Jesus and Mary Chain, the latter have been specifically noted for their use of feedback, far more-so than many other "more notable artists".--Te Irirangi 01:51, 27 October 2006 (UTC)

How about The Chariot? - 70.71.202.54 05:36, 13 November 2006 (UTC)

Why don't just mention the artists who have used feedback instead of comment each one

if anything, we need to cut back on the examples. This article isn't the place to add a mention of just cool/interesting use of feedback, otherwise it'd just be a big list. We should stick to truly notable uses, and only add them if there's a specific, cited reason why that example is notable. Torc2 19:00, 3 December 2007 (UTC)

Hey why isn't Lou Reed's Metal Machine Music mentioned? That thing is all feedback, the whole thing. —Preceding unsigned comment added by 76.112.249.190 (talk) 09:24, 11 September 2009 (UTC)

I feel fine

I feel fine's intro is not feedback... it is an open string hitting a nail... 25 June 2007(UTC)

There are a lot of citations for it being feedback; see The Beatles' Influence on Recording Music - Lennon, McCartney and Harrison all describe it as feedback, also in a film of the Beatles performing I Feel Fine, Lennon can be seen turning to face the amplifier to get the feedback effect. Apepper 19:44, 4 October 2007 (UTC)

The sound on I feel fine is not true feedback, it is a sympathetic note on John’s guitar triggered by a note on Paul’s bass.

The distinct slowly intensifying buzzing sound on the opening cannot be replicated by simply holding a plugged in acoustic guitar in front of an amp- you get a howling low frequency sound instead.

The sound can be replicated on an unplugged acoustic guitar by hitting the right note (“D” on the “A” string, fifth fret, harmonic even better) on a bass guitar. The open string on the acoustic begins to vibrate, slowly building in volume and intensity, eventually buzzing against the frets before fading. 2001:569:BCD0:2300:5C22:C3E4:8761:4759 (talk) 16:02, 23 November 2023 (UTC)

Please! citations?

How do we know that what u write are valid? —Preceding unsigned comment added by 88.138.60.137 (talk • contribs)

Someone give me an example before "I Feel Fine" because according TO All Music Guide "This was the very first use of feedback on a rock record. It's been claimed that others (such as the Who, the Yardbirds, and Creation guitarist Eddie Phillips) had developed guitar feedback, or something approximating it, live before the Beatles did "I Feel Fine." It seems inarguable, however, that the Beatles were the first to use it on disc; probably no other group had the clout to get away with that experiment in late 1964" Song Review by Richie Unterberger --Nelsonbaby (talk) 01:08, 26 November 2009 (UTC)nelsonbaby

Guitar Feedback

since "Guitar Feedback" has it's own specifications and technical details, I think it’s quite useful to have a dedicated article about it. Hm john morse 16:22, 3 December 2007 (UTC)

Is there enough citeable material out there to create an article on it? If so, go ahead and do it. If there's not enough available now, you could probably just create a section within the current article and a redirect from Guitar feedback to it. Torc2 19:05, 3 December 2007 (UTC)

The feedback created by guitar is very different from the feedback described in this article. This article defines audio feedback as a signal being picked up, amplified, run through an output transducer and picked up by the same input transducer, creating a loop. Guitar feedback is an entirely different principle. A guitar feeds back when the vibrations from the amplifier causes the material of the guitar's body to resonate sympathetically, causing the strings to do so as well. Guitar feedback and microphone feedback sound different, are caused by different things and are thought of in a different. i.e. some times guitar feedback is desirable, while microphone feedback is always best avoided. Guitar feedback should have its own article. 70.69.132.168 (talk) 19:37, 29 June 2010 (UTC)

Actually, guitar feedback is extremely similar to microphone feedback in its basic mechanism. Still, if there is enough material to separate this topic into two articles, then I support that action. Binksternet (talk) 21:19, 29 June 2010 (UTC)

Additional citations

Why, what, where, and how does this article need additional citations for verification? Hyacinth (talk) 07:38, 26 June 2011 (UTC)

Original research

Why and where does this article contain original research? How should it be cleaned up? Hyacinth (talk) 04:44, 21 May 2012 (UTC)

The Prevention section is unreferenced. I've marked that and removed the WP:OR banner. --Kvng (talk) 13:43, 22 May 2012 (UTC)

Bullshit. a good source would be ehow but the shit heads who mannage the black list decided to ad that on to it so it's a no go there, and that's about the only "reliable" source for that. i'm removing it and puting a notice in the summary as to why the banner is being burnt. 199.101.61.190 (talk) 22:40, 5 November 2012 (UTC)

EHow is a how-to website and not really intended as a verifiable source of real information. Their publication process means that basically anyone can write a guide and their information is not particularly in-depth or technical. Please also read WP:RELIABLESOURCES. Radiodef (talk) 00:13, 6 November 2012 (UTC)

A much better source would be from one of several books about how to work with live sound. Until somebody wants to introduce such good sources, I am removing the low-value "Prevention" section. Binksternet (talk) 00:24, 6 November 2012 (UTC)

You keep deleting my contribution even though it's true, and no i'm not making it up. how do i know this? my best friend helps to set up concert venues and has been doing that for 3 years now. when a microphone is inclosed in a concave divice or even when a hand is holding the part you speak in, it creates a loop for the sound thus causing minor feedback. sometimes it comes in the form of echoing distortions and other times it comes in the form of howling and screaching. so moderators and those who keep deleting my contributions, for shit sakes. 199.101.61.190 (talk) 11:57, 8 November 2012 (UTC)

I keep deleting it because of Wikipedia's policy of WP:No original research, and because the presentation and the wording are amateurish and unencyclopedic. I'm a professional audio engineer for live sound events, similar to your "best friend", but I know that Wikipedia is based on knowledge published in WP:Reliable sources rather than personal experience.

Should there be a section about prevention of feedback? Sure, why not. If so, it should be written from book sources, not from recollection of a best friend's experiences. Binksternet (talk) 15:20, 8 November 2012 (UTC)

I also don't see anything really special about the scenario you've described that warrants its inclusion in the article. If anything, placing a microphone too close to some kind of enclosure or covering the receiving end heightens chances of feedback because it introduces strong reflections, but that is not the same thing as causation. Wikipedia is also not a guide, so it's not a place for a list of "things not to do". If a section about prevention is warranted, then it needs to be encyclopedic: a strict presentation of common techniques with references that justify their inclusion. Radiodef (talk) 21:16, 8 November 2012 (UTC)

cause

One cause of feedback is the looping of soundwaves caused either by the mic being enclosed by a hand or a concave object such as a bowl, or the user leaning too close to the mic, causing the signals to bounce off of his/her face and as they speak, the signal bouces into and out of the user's mouth causing a minor howling and distortion sound. this happens sometimes when a performer is too close to the mic or when they are holding their hand over the mic. Alien Arceus 10:16, 1 February 2013 (UTC)

The hand over the mic increases the gain of the mic (for certain directions and frequencies) which lets feedback happen. I didn't know that being too close to the mic was a significant problem. Do you have any citations? -—Kvng 14:55, 4 February 2013 (UTC)

TBh, no online data sources. the only real source i can find is my experience: about two or so months ago, i was in Toronto recording some lines for a cartoon, and the director told me to move back from the mic, because i was causing feedback. as for data sources, don't know any as of yet, and to be frank, i'm not sure where i'd look anyway, it's just something thats happened to me several times. Alien Arceus 04:18, 12 February 2013 (UTC)

There can be no microphone feedback except in the presence of sound-making transducers such as loudspeakers or headphones reproducing the microphone signal. The only thing I can think of is that your headphones were loud enough to be heard in the microphone signal. A simple hand or mouth or face in front of the microphone cannot cause feedback by itself. Binksternet (talk) 18:04, 12 February 2013 (UTC)

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Characteristic frequency

It is my impression that acoustic feedback squeals usually fall in the same frequency range (1000-3000 Hz?) - whether it's a PA system, a phone interview in live radio, or whatever. This may seem odd since the time T for a random tiny sound to make full circle must be quite differentin those cases, and the frequency should be 1/T in a simple understanding of the phenomenon. I think the explanation must be along these lines: In addition to 1/T, frequencies p/(q*T), where p and q are small integers, may also be created, p>=2 representing overtones, and q>=2 representing a sound making two ore more circles. Which frequency that is actually heard is also determined by the variation of gain with frequency (in amplifier, loudspeaker, microphone, room acoustics, and electronic transmission, all combined), and I suppose that will often favour frequencies roughly in the range actually heard. I think ait would be nice to have a brief and correct explanation in the article, but my explanation is sketchy at best, the p/q-thing is not really thought through, and I have no sources. Anyone?--Nø (talk) 18:51, 21 March 2018 (UTC)