sound in the room

hi,
i want make performance there few places @ room plays sound when people walking on floor
i'm new @ , start explore...

there way without kinect?

really tips beginning

thanks!

hi!

what mean "walking"?
is bare movement (the opposite of standing still)?
is person comes closer object?
is person pass special spot?
is weight on special spot, because person steps on it?

you can use different sensors - have many options.
you sense movement pir sensor (example: https://www.adafruit.com/products/189).
it not selective can cover relatively wide area (maybe 10 square meters).

you can use infrared proximity sensor (example: https://www.sparkfun.com/products/8958)
it more selective, work 150 centimeters.

you can make infrared light barrier. if person "breaks" it, sound start. can pretty selective because person must pass special spot.

you can use force sensitive resistor (example: https://www.sparkfun.com/products/9376).
when person steps on it, can trigger sound. selective.

these ideas. there more, different trigger methods.
and can use combinations of sensors.

how critical timing?
how long sound/music (seconds, minutes... decades)? (see: asap)
is same sound(file) or different ones?

example 1 (own project)
some time ago asked "sound trigger installation" exhibition of friend makes sculptures.
only 1 or 2 sculptures in small room (about 4-5 square meters), there 8 of small rooms (in total 12 sculptures). wanted sound start playing, when person enters each of small rooms. sound-file 1 out of 5 10 files (some kind of randomness), 30 seconds 1 minute.
the artist said: "some seconds after person enter room sound should start play - 1 or 2 seconds more or less ok. after person (or persons if there more) left room , no 1 else there, track shall play until end , stop. after there should silence until other person enters room."

i decided use pir sensors. , did job pretty well.
other hardware used (main parts):
arduino unos
dfplayers (serial mp3-player micro sd card)
audio amplifiers
loudspeakers

example 2 (own project)
we had 10 tv sets (kind of) within exhibition. curator wanted every tv set should play short movie while person standing right in front of tv set. movies (soft sound only) 20 30 seconds long. tv sets placed side side 2 meters distance each other.

i used (long distance) infrared proximity sensor placed below each tv set. set trigger distance 100 150 centimeters. made desired effect.

other hardware used (main parts):
arduino micros
laptops video-player
tv sets (loudspeaker integrated)

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