[sdiy] Real piano keyboards: any use?

[David Ingebretsen]

Very interesting idea. Nice to be part of a group with such fascinating
ideas. 

You could also derive the acceleration from the velocity and use it to drive
other controls all tied to the same keystroke...

David

David M. Ingebretsen M.S., M.E.
Collision Forensics & Engineering, Inc.
2469 East Fort Union Blvd. STE 114
Salt Lake City, UT 84121
www.CFandE.com

801 733-5458 Office
801 842-5451 Cell

dingebre at CFandE.com
dingebre at 3dphysics.net




-----Original Message-----
From: synth-diy-bounces at dropmix.xs4all.nl
[mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of cheater cheater
Sent: Thursday, January 29, 2009 11:00 AM
To: synth-diy at dropmix.xs4all.nl
Subject: Re: [sdiy] Real piano keyboards: any use?

> True, but an accelerometer also gives you a continuous voltage curve out
> that can be used for other control/audio information.

It does indeed!
I think the best way to achieve this kind of control is to have a
continuous optic distance sensor. This can give you acceleration
output and position output.
Imagine having a synth style keyboard with the position going to the
volume of the voice, and the speed going (through a non-symmetric LPF
with a long release) to the volume of the suboctave. This would be a
great lead/pad patch.

On Thu, Jan 29, 2009 at 5:47 PM, David Ingebretsen
<dingebre at 3dphysics.net> wrote:
> True, but an accelerometer also gives you a continuous voltage curve out
> that can be used for other control/audio information.
>
> David
>
>
> David M. Ingebretsen M.S., M.E.
> Collision Forensics & Engineering, Inc.
> 2469 East Fort Union Blvd. STE 114
> Salt Lake City, UT 84121
> www.CFandE.com
>
> 801 733-5458 Office
> 801 842-5451 Cell
>
> dingebre at CFandE.com
> dingebre at 3dphysics.net
>
>
>
> -----Original Message-----
> From: synth-diy-bounces at dropmix.xs4all.nl
> [mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of cheater cheater
> Sent: Thursday, January 29, 2009 3:05 AM
> To: synth-diy at dropmix.xs4all.nl
> Subject: Re: [sdiy] Real piano keyboards: any use?
>
> There's a very simple to use keyboard interface from uC Apps. check
> the 'midification' forum at forum.midibox.org
>
> You don't need accelerometers for velocity info - just two buttons and
> a timer...
>
> Cheers
> D.
>
> On Thu, Jan 29, 2009 at 8:46 AM, Matthew Smith <matt at smiffytech.com>
wrote:
>> Quoth David G. Dixon at 2009-01-29 12:26...
>>>
>>> This might sound kinda crazy, but my kid's school is throwing out an old
>>> piano (on Friday), and I was wondering whether one could make profitable
>>> use
>>> of its innards for synth purposes.  Any ideas?  Has anyone out there
ever
>>> pressed a real piano keyboard into electronic service?  What about
>>> whacking
>>> piezos with the hammers instead of strings for some velocity-controlled
>>> analog mojo?
>>
>> Simple answer: if you've got the space to store/work on it, grab it!
>>
>> Then you can study the mechanism and see what is/is not feasible.
>>
>> If I were getting destructive/constructive on a piano, I might consider
>> putting magnetic pickups on each course of strings (rather than each
>> string).  You could then either mix the whole lot and process it of do
>> per-course processing - I'm thinking here of something like a guitar
synth
>> controller, but with a whole load of extra strings.
>>
>> Cheers
>>
>> M
>>
>>
>>
>> --
>> Matthew Smith
>> Smiffytech - Technology Consulting & Web Application Development
>> Business: http://www.smiffytech.com/
>> Personal: http://www.smiffysplace.com/
>> LinkedIn: http://www.linkedin.com/in/smiffy
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