Modartt user forum - Sensibility problem in just one key

Re: Sensibility problem in just one key

null@example.com (jcfelice88keys) — Sun, 07 Nov 2010 03:53:16 +0000

Beto-Music wrote:

Thank you for the suggestion, Joe.
But it's not a case a constant alteration of sensibility, but intermittent sensibility change.

This intermittent sensitivity change is precisely the reason for my suggestion: you never know when the offending key will act up. My solution evens out that particular G note regardless of whether it works correctly ... or not.

Joe

Re: Sensibility problem in just one key

null@example.com (Jope) — Sat, 06 Nov 2010 23:51:31 +0000

Most probably it's not the cable because a bad connection would affect other notes or MIDI data, too.
The sensors of common keyboards are not optical but just simple electrical contacts. Each key has two of them with a certain mechanical offset to each other. When a key is pressed, it first makes one contact and then the second one. The time between the contacts being made is inversely proportional to the speed of the key motion. If there is something wrong with one contact, the time cannot be gauged correctly, resulting in wrong velocity values. Maybe the first contact is dirty, so it becomes conductive too late, the time until the second contact is made is shorter, so the velocity is estimated too high.
Since this is a mechanical problem, you could try to resolve it yourself (if you think you're not all thumbs) by cleaning the corresponding contacts. Sometimes they are metal reeds, sometimes they are rubber contacts. It is also possible there is one make and one break contact. It is always a good idea to be careful and gather information first.

Re: Sensibility problem in just one key

null@example.com (Beto-Music) — Sat, 06 Nov 2010 23:23:58 +0000

Thank you for the suggestion, Joe.
But it's not a case a constant alteration of sensibility, but intermittent sensibility change.

I can play several strikes, and get normal response for 3 seconds, and a second latter get a overwelming responde, and in next 2 seconds a normal response again. that's why I imagine it's someting in the optical sensor of that key. Maybe something not firm in the right place.

jcfelice88keys wrote:

Hello Beto,
If you have Pianoteq PRO, set the volume of the offending note ... rather high (or at least a value that will match other notes you intend on playing), and set the velocity sensitivity of that note ... rather low. In this way, almost regardless of what your keyboard sends, you should obtain a rather even sounding note.
Cheers,
Joe

Re: Sensibility problem in just one key

null@example.com (jcfelice88keys) — Sat, 06 Nov 2010 22:01:57 +0000

Hello Beto,

If you have Pianoteq PRO, set the volume of the offending note ... rather high (or at least a value that will match other notes you intend on playing), and set the velocity sensitivity of that note ... rather low. In this way, almost regardless of what your keyboard sends, you should obtain a rather even sounding note.

Cheers,

Joe

Sensibility problem in just one key

null@example.com (Beto-Music) — Sat, 06 Nov 2010 20:14:46 +0000

I have a problem, but it's probably in my keyboard or midi cable, rather than pianoteq.

The second G in my roland started to have a sensibility problem. Sometimes it get too strong and sometimes it's normal.

Can that be dirt couvering the sensors ? I supose digiatal pianos use optical sensor.

I tested and teted, several strikes of different velocities, or just playing normally, and sometimes it gost jump to a strong strike, just on this note.

Any sugestions ?