A musical Instrument for the kid in all of us who likes electronic adventure

RS Theremin

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Excellent software theremin pitch tuner with a fast response.

Display - precision notes - amplitude - frequency - basic wave shape. 

It makes use of any Win 98 or later computer microphone input with a sound card. 

The tuner program still allows for simultaneous recording into programs like Audacity.

Download the tuner v1.3 (286k) Freeware

Visit William Andrew Steer PhD for his other well thought out and interesting programs.

Some sound cards invert the scope trace.

Don't Overdrive the Microphone Input!

If the sampled audio is too weak or not clean the display remains dim. If the input signal is too loud into the computer input then the display is red. The theremin is a perfect sound source for this software.

My RS Theremin "Audio-Out" level can be reduced by turning Pot 2 counterclockwise.

If you cannot adjust the theremin output level low enough to use the computer microphone input then record the sound byte as usual and then play it while observing the Pitch Tuner.

Validate the Pitch Field with the above Tuner and a print out of the piano scale below.

I Created a PDF file to print one octave with the spacing of a piano keyboard, I then tape three graphics together on a wooden yardstick to make a reference strip between me and my theremin antenna.

Three of these strips end to end make a good three octave reference. 

Theremin antenna tuning and octave spacing is not a conversation your going to readily find on the internet. It is a difficult subject to technically understand and control. Most Thereminist learn to play within non-linear pitch fields, adapting and remaining with a specific playable theremin model. 

Until perfect pitch linearity comes about on all theremins, there will be large playing control inconsistencies from model to model. Why do so many people prefer the Moog EtherWave Pro? It plays with the comfort found in a linear pitch field. I don't know if it is ever mentioned publicly in Moog circles but people have sent me emails that they did not like the original sound of the Pro out of the box. 


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