[sdiy] gyro controller

[RMC]

I saw an interesting article which employed these to make the sound-stage 
move around when you wear headphones.

The text levelled the criticism at headphones saying that the stereo 
separation is good but static - turning your head causes no change in 
amplitude or phase ofinbound soundwaves (obviously) whereas a real pair of 
speakers does allow these effects to be experienced.

The magazine was a UK-based publications, "Electronics and Wireless World" 
and it was a late 90s article I think.  Ian Hickman was the author.

RMC, England


----- Original Message ----- 
From: "The Old Crow" <oldcrow at oldcrows.net>
To: "anthony" <aankrom at bluemarble.net>
Cc: <synth-diy at dropmix.xs4all.nl>
Sent: Sunday, February 20, 2005 10:07 AM
Subject: Re: [sdiy] gyro controller


>
>  Were they Murata ENC-03M types?  Usually these are mounted at
> right-angles to each other for X and Y axes.  They need a simple
> filter/buffer amp circuit externally, but otherwise they work quite
> nicely.  If you add in a yaw gyro for the Z-axis, you have a spatial
> controller.  Analog Devices makes the ADXSR300 for this.
>
> Crow
> /**/
>
>>   From: anthony
>>   To: synth-diy at dropmix.xs4all.nl
>>   Sent: Sunday, February 20, 2005 1:29 AM
>>   Subject: [sdiy] gyro controller
>>
>>
>>   So the other day I decided to actually bust open the broken camcorder
>>   that my girflriend gave to me. (Salt spray. Bummer.)
>>   I noticed some weird little things antiparallel to each other that say
>> muRata on them. And I started to remember - yes - this was one of those
>> camcorders that cancels out the shakes. Hmmm... So I looked them up - I
>> think they were called piezoelectric gyroscope transducers. A tranducer
>> element vibrates and outputs a voltage in relation to coriolis effect or
>> something liek that.
>>
>>   Well I immediately had a cool idea for them: I'd make a two axis- CV
>>   controller like one might make out of a joystick.
>>   Perfect for the kind of stuff I build (I have all kinds of VST stuff
>> for regular music - I make ambient noise things with my electronics
>> parts.)
>>
>>   The circuit is really easy. I'll let you guys knwo my results when I
>> get it done.
>