====== Laser harp ======

{{template>:project:infobox|
name=Laser harp|
image=laser-harp.jpg?200|
sw=-|
hw=-|
founder=[[user:Nephirus]]|
interested=[[user:kxt]] \\ [[user:czestmyr]] |
status=suspended
}}

~~META:
status = suspended
&relation firstimage = :project:laser-harp.jpg
~~

===== Introduction =====

Laser harp is a musical instument, that uses laser beams as an interface to player. Our goal is to build a fully functional open-frame laser harp with at least 8 beams.


===== Hardware =====

Hardware consists of four main parts: laser, mirror, detector (an ordinary usb webcam should do the job) and DSP circuit.

There are two measured variables: angular displacement of mirror $\Delta \theta$ (fig. 1, B), which determines the beam that has been blocked, and distance $d$ between mirror (fig. 1, B) and hand (fig. 1, C).

A sound sample is assigned to each beam, distance $d$ determines intensity (volume) of the sound.

{{:project:laser_harp:side_view.png?400|Figure 1 - side view}}  


{{:project:laser_harp:top_view.png?300|Figure 2 - top view}}




===== Sources ======

[[https://github.com/Nephirus/laser_harp]]

===== Pics and Videoze =====

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{{youtube>9DlwQJX3qag?medium}}