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I feel fine

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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)[reply]

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)[reply]

cause

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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)[reply]

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)[reply]

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)[reply]

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)[reply]
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Characteristic frequency

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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)[reply]

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