Re: OT: StringPort for polyphonic guitars

[David Hayes <stringfling@gmail.com>]

I use the RMC pickups with Axon AX 100 and it works really well.  
Nothings perfect but it's very, very usable. (I did try the Rolland  
1st and the difference is huge. To me the Rolland was, ultimately,  
usable.)

I Put the RMC's on a PRS 513, so the range of possible sounds is CRAZY!

Have fun.



On Jan 14, 2009, at 9:57 PM, Matthias Grob wrote:

>
> On 12 Jan 2009, at 09:38, andy butler wrote:
>
>> Warren Sirota wrote:
>>> yeah, except that, according to Keith, piezos have more cross-talk  
>>> than magnetic hex pickups.
>>
>> According to Matthias, the opposite is true :-)
>
> gee, I need to talk to Keith and come to an agreement :-)
> it depends on the construction of the pickups. on the magnet  
> orientation on one side, and on the separation of the bridges of the  
> piezo on the other side. I am pretty sure that the RMC and the  
> Paradis pickup separate better than the Roland GK.
> we tried to build piezos into a Les Paul kind of bridge and it  
> sounded horrible and xtalk was bad.
> we found separate brass parts for each string pressing on a wooden  
> bridge the best.
>>
>>
>> http://www.mathons.com/polysystem.htm
>>
>> I've measured the GK-2A, it does have significant cross-talk.
>> (wish I could find the figures)
>
> I could not either :-(
>>
>>
>>> and, it seems to me, the real game here is a beyond-midi kind of  
>>> tight coupling between your playing and whatever synth/electronic  
>>> sounds you're controlling.
>>
>> Yep, doesn't look like it offers the option of using the string
>> as a direct sound source. I thought that was the point...but I  
>> guess not.
>
> oh, yes, it is mainly made for single string audio processing!
>>
>>
>>
>> The downside of that system is that the latency all adds up.
>>
>> You get audio in and out latency from the computer,
>> plus the time it takes to identify the pitch.
>> Either of those on their own might me not too bad,
>> but add all 3 together it's bound to be noticeable.
>
> usually the in/out latency is constant
> while the pitch conversion is quick for high strings and slow for low
> but the fret contact MIDI control is very quick
> I dont know how easy it is no mod an existing guitar though...
>>
>>
>> Very neat looking system tho'.
>>
>>
>> andy
>>
>> original link:-
>>
>> http://www.keithmcmillen.com/stringport/indexb.html
>>
>>
>>
>>
>