Topic: loud A flat below middle C petraf mistral

I like the sound of the petraf mistral - I have been using the warm variant - except that the A flat below middle C is loud compared to the notes around it.
It takes some getting used to, to work with it.

Any idea what's going on?  Anyone else get this?

Re: loud A flat below middle C petraf mistral

stuartmacg wrote:

I like the sound of the petraf mistral - I have been using the warm variant - except that the A flat below middle C is loud compared to the notes around it.
It takes some getting used to, to work with it.

Any idea what's going on?  Anyone else get this?

I have not noticed this.   Do you get this with all presets of the petraf mistral ?  Is this listening on speakers or headphones?  If speakers possibly you could have a room resonance enhancing the Ab.

Re: loud A flat below middle C petraf mistral

I don't notice any accentuation in volume, timbre or velocity of the Ab below middle C in the Petrof Mistral Warm preset.

However, this phenomenon does sometimes happen: in addition to the possibility that a particular resonant frequency of a room or speakers or headphones or something else in your audio chain or environment is accentuating a particular note, some velocity-sensitive MIDI keyboards have "hot keys" that transmit MIDI velocity values that are higher than those of other keys when pressed with the same force. The MIDI keyboard I use, a Kawai MP11SE, has a function to adjust the volume of each key independently in order to regulate and compensate for the imperfect or irregular velocity-sensitivity. Pianoteq Pro (in Note Edit) also allows one to adjust the volume (and hammer hardness, in the case of timbre) of every note individually to compensate for velocity or volume irregularities.

Last edited by Stephen_Doonan (09-11-2021 15:49)
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Linux, Pianoteq Pro, Organteq

Re: loud A flat below middle C petraf mistral

This is really interesting. I also have these issues with the Mistral, but with the D key one octave above middle C. Always thought it was a resonance issue with my headphones, but its very weird that this is the only piano that has these problems, all the others sound normal.

Last edited by aleluman (09-11-2021 17:00)

Re: loud A flat below middle C petraf mistral

My previous message (if seen) was a mistake. Philippe and I saw indeed a quite big partial (number 12 around 2500Hz) on the A flat of the Warm preset, that will be corrected in the next Pianoteq update. If you cannot wait and that you are a PRO user you can directly tame this partial going in the Note Edit of the Spectrum Profile.

Thanks for your contribution (hoping this was the culcript)!

Re: loud A flat below middle C petraf mistral

It is already a -1db on the Spectrum profile in Pianoteq 7.4.2. The "correction" should be how many db?

Last edited by Chopin87 (11-11-2021 09:14)
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