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I'm a visual artist and want to record the sound of human touch live to be included in an installation artwork. (The very soft sound of touching thread.) I have no science or engineering knowledge. Could someone give me advice on what equipment to use please? Also, my budget is very low!!!

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Even if you could record it properly, without significant background noise (e.g. in an anechoic chamber), you'd likely not be satisfied with the results.

The actual recorded sound of rubbing a thread will sound quite different from what one would expect it to sound like. People won't recognize it.

The foley department in any movie studio is filled with objects and devices for making sound effects to be dubbed into the film's sound track. But the sounds they make are what the audience expects something to sound like, not what it actually sounds like. (E.g. the snick-snick sound of a semi-automatic gun or rifle is usually made with a metal doorknob and lock-set, not with an actual weapon.)

I once was asked to record some sound effects for a radio play, so I naïvely took the tape recorder and recorded the requested sounds. One effect turned out particularly bad: bricks falling off a roof (and narrowly missing the hero). I had taken a couple dozen bricks, balanced them on a wall, and pushed them off. It sounded amazingly great at the time, but when played back in the studio it sounded like dishes being broken in a china shop (in fact, the tape was later used for exactly that purpose). Instead the director improvised and had the actors throw a few cardboard boxes on the floor while they were making the voice recording. When played back, it sounded exactly like what one would think falling bricks would sound like (heavy thudding with lots of bass).

For a thread sound, perhaps try rubbing a wooden stick along a guitar string.

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This is probably not something you would record directly but something you would design to indirectly tell the story you want to tell.

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I did a quick check: my simple dB meter measures 40 dBA from 10 cm away when I rub my hands over my clothes. Background noise level in my quiet living room is 37 dBA.

Any ordinary microphone sensitive enough to pick this up will also hear (and amplify) all other sounds in the room: the spectators in the room (shuffling, coughing, even when they're trying to be quiet)) and any equipment (HVAC, fans, outside noises).

And what do you do with the recording?
You can't play it back at its original level, because nobody would hear it. You'd have to amplify the sound, but a hand on cloth sounds pretty weird when played back at 60 dBA.
I do this sometimes when I test a headset microphone. When I prepare the mic for use, I place the mic on top of the cloth pouch I store it in. To see if I have signal coming in, I drag my fingertip across the pouch. Played back, that sounds more like dragging sandpaper over a piece of wood.

Since the sound of a hand touching cloth is pretty much noise, it's easy to synthesize.

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Just record a simple movement like softly moving your fingers against like wood. Use soft sounds.

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  • Use a sound of quite movement. In other words stealthy. – ScavengerX Dec 3 at 1:25

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