Hello,

I like the new Pianoteq V5, but I have a problem with a weird ringing sound of A1 key. Check this:

Thanks.

I hear this noise as well...I was waiting to see if anyone else would post about it. Love V5, but this definitely needs to be fixed as it is glaringly obvious in my opinion (and also quite irritating).

We will redesign a few wound strings to calm down the culprit modes in the next release (during the coming week).

I wonder if that also includes subcontra G - that note seems to howl the most for me.

What you're hearing might be its L-mode, which on both instruments, I've observed to be around a minor 27th. Play A1 and the F or F# above the middle octave and listen to the beating. Or, for a better example, play A#0 and A440. On the D4, the notes seem almost in tune, but with slight beating. The same interval on the K2 produces almost no beating. Look here for a better idea of what I'm talking about.

Congenial, this all-surprising stuff from You, lowendtheory and Nien. A very audible effect in the referred paper, but I am not sure that in Pianoteq the longitudinal design (or some lack of it? some possible direction for engine improvements?) is alone the cause for the tube-like sounds - it can possibly be tuned by straightforward general overtone tweaking? The longitudinally emitted energy seems to be a true orthogonal parameter in sound shaping (beyond the obvious transversal-longitudinal relation)....

Nien, I agree with you that A1 (actually A0 in the Pianoteq numbering convention) stands out regarding its L-modes. We will redesign a few wound strings to calm down the culprit modes in the next release (during the coming week).

Thank you very much! :-) I wish other companies (Arturia for example) had such customers support like you!

Philippe Guillaume wrote:

If you want to attenuate them you can reduce the velocity curve (for example use the "Moderately fast keyboard" velocity preset - right click in the velocity panel). You can also reduce the high frequencies in the EQ, for example something like Equalizer = [3000, 5000; 0, -6.0] (copy paste [3000, 5000; 0, -6.0] in the EQ panel).

I'm not sure if we understand each other (maybe for my bad english, sorry ;-) ). I really love the whole sound of K2 or D4 piano and I do not want to change it's global character by EQ or velocity curve. My problem is only with one note (A1) which sounds completely different to all others and -- for me -- unnaturally. I can't belive it should really sound like cow's bell, especially with comparison to V4.5 where was not this ringing artefact hearable.

Btw, can you record some notes around A1 on your computer and post it here? I wonder if it will be same...

Nien, I agree with you that A1 (actually A0 in the Pianoteq numbering convention) stands out regarding its L-modes. We will redesign a few wound strings to calm down the culprit modes in the next release (during the coming week).

In Pianoteq Standard or Pro, try changing the String length in the Design panel. Find a length that eliminates the harsh L-mode and doesn't change the character of the piano too much.

I have Pianoteq Stage yet, but are you sure it is possible in Standard version? In the versions comparison table is per-note edit only in the most expensive Pro version.

Well, but what can I do to suppress this annoying sound effect? It is a bug or "feature"? It sounds very disturbing if one key is so highlighet.

In Pianoteq Standard or Pro, try changing the String length in the Design panel. Find a length that eliminates the harsh L-mode and doesn't change the character of the piano too much.

Would be possible to adjust/adapt pianoteq to make a piano model behave like straight string, but with the advantage of longer strings for the bass ?

Not that I dislike this effect. It's just a idea.

If you want to attenuate them you can reduce the velocity curve (for example use the "Moderately fast keyboard" velocity preset - right click in the velocity panel). You can also reduce the high frequencies in the EQ, for example something like Equalizer = [3000, 5000; 0, -6.0] (copy paste [3000, 5000; 0, -6.0] in the EQ panel).

I'm not sure if we understand each other (maybe for my bad english, sorry ;-) ). I really love the whole sound of K2 or D4 piano and I do not want to change it's global character by EQ or velocity curve. My problem is only with one note (A1) which sounds completely different to all others and -- for me -- unnaturally. I can't belive it should really sound like cow's bell, especially with comparison to V4.5 where was not this ringing artefact hearable.

Btw, can you record some notes around A1 on your computer and post it here? I wonder if it will be same...

Well, but what can I do to suppress this annoying sound effect? It is a bug or "feature"? It sounds very disturbing if one key is so highlighet.

The L-modes mentioned by lowendtheory are part of the natural sound of a piano, and the louder you play, the more present they are. These modes can vary significantly from one note to another, even between neighbouring notes, this contributes to the charm of the piano. If you listen to some Horowitz recordings, for example: 
https://www.youtube.com/watch?v=-JaY0IZEy90, you will hear a bunch of strong L-modes.

If you want to attenuate them you can reduce the velocity curve (for example use the "Moderately fast keyboard" velocity preset - right click in the velocity panel). You can also reduce the high frequencies in the EQ, for example something like Equalizer = [3000, 5000; 0, -6.0] (copy paste [3000, 5000; 0, -6.0] in the EQ panel).