Topic: Sound level (loudness) of the pianos what were modelled

This is potentially a silly question...

In tweaking my pianoteq setup I aim to create an experience closest to that of the reference piano (Steinway, Petrof, Grotrian...etc.) actually in my room.

One of the aspect is to make it so that when I press a key the same way, the Pianoteq model will produce the same loudness as if the reference piano is actually in my room.

I think is involves adjustments of the master volume and the dynamic range slider, in order that each key press, hard or soft (i.e., all velocities) will result in sound volume that approximate the real thing.

In order to achieve this, I need the maximum sound level (SPL level) and dynamic range of the reference pianos. Then I can adjust the volume and dynamic range in my Pianoteq setup so that my sound meter will read the same.

Is the information about the maximum sound level and dynamic range of each of the reference pianos (or one set of number in general if all the pianos are very similar) available? Or is this the proper way to approach this?

Last edited by lo134 (11-11-2019 20:23)

Re: Sound level (loudness) of the pianos what were modelled

My suggestion is, if you’ve two (2) microphones (a matched pair), use them (in a recording of your acoustic piano) and match the recording setup to a Pianoteq piano model closest to your own (referenced) piano.

Choose or create, simply a Pianoteq virtual microphone placement to simulate your real world one!

You probably want to experiment with some softwares that emulate real world microphones, if although you’ve no physical mics matched inside Pianoteq, you’re really still serious and want to get quite the best possible results outside your own piano room.

Last edited by Amen Ptah Ra (17-11-2019 03:22)
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Re: Sound level (loudness) of the pianos what were modelled

lo134 wrote:

This is potentially a silly question...

In tweaking my pianoteq setup I aim to create an experience closest to that of the reference piano (Steinway, Petrof, Grotrian...etc.) actually in my room.

One of the aspect is to make it so that when I press a key the same way, the Pianoteq model will produce the same loudness as if the reference piano is actually in my room.

I think is involves adjustments of the master volume and the dynamic range slider, in order that each key press, hard or soft (i.e., all velocities) will result in sound volume that approximate the real thing.

In order to achieve this, I need the maximum sound level (SPL level) and dynamic range of the reference pianos. Then I can adjust the volume and dynamic range in my Pianoteq setup so that my sound meter will read the same.

Is the information about the maximum sound level and dynamic range of each of the reference pianos (or one set of number in general if all the pianos are very similar) available? Or is this the proper way to approach this?

I would imagine Pianoteq has already done that for you in default mode.  All you have to do is get a decent sound system, adjust the volume of your controller/Digital Piano to the strength you desire it.  If it was a grand, I'd guarantee you'd turn it down . . . . .they are LOUD!

I'm playing all the right notes but not necessarily in the right order

Re: Sound level (loudness) of the pianos what were modelled

I overlooked this post, apologies lo134.

Yes, definitely agree with peterws says. A grand is loud up close.

Even the most beautiful ones can certainly hurt your ears played long enough. It's a quality reason to use a smaller piano mostly at home or in practice with the lid down often (IRL that can take away a lot of treble which might be the first area of hearing damage to show up).

Gladly Pianoteq can be turned down where a real grand can't (we keep the grand sound but don't need it 100% real volume all day/night). Our neighbours are as happy about this as I am

It's a thing worth considering - if you do intend to play at realistic volumes, please do always care for your ears and keep it to a play-through, or performance at a time, but definitely do limit the times at full volume. For me, the suspension of disbelief is enough at around 70 to 80 dB so hoping others might feel OK at that range too. At very least, hope that helps you save your hearing - you have pretty golden ears judging by your lovely work with the Bluthner!

Also - keep in mind a grand is by nature projecting sound waves to fill a large space - so as beautiful as they can sound loud, putting one in a small physical space may not sound as good up close as one on an acoustically appropriate stage (but in headphones and in recordings of course very fine coming out 2 speakers - but maybe just not for the purposes of player positional realism - if that makes sense.) Small spaces among other things can include big thumping early reflections among other things subjected to high bassy audio. So, some tweaking of presets might be a good thing to get to grips with. A few quick thoughts, include lowering 'early reflection' in reverb, altering reverb 'tone', using an EQ preset or making one to reduce some bass. That's before getting to other issues like running things through a DAW of choice and using some plugins gain a studio level of control over more aspects of your sound.

I suppose you will require your sound system to achieve over 100dB (with realism as goal). Depending on your budget, you could go for horns or speakers (new or used). To me, with speakers size does count (realism). Small close ones may sound OK for practice etc.. but you will struggle to recreate something sounding realistic in your space (esp. grand fortissimo). For most people I believe stereo speakers above 8inch can give reasonable 'suspension of disbelief' in a comfortable range.. adding a sub-woofer can be a fairly simple step up.

There are some really helpful forum members like dklein (a decent fellow) has interesting posts here about his setup and future setup ideas. There are many forum threads about multi-speaker setups. Such as, in addition to stereo speakers, using others pointing upwards, pointing outwards. I haven't made a dedicated setup like it (have done much work with speakers though) but can imagine, you'd want to move your excellent Yamaha controller back from the wall if possible and position speakers around the virtual area of the body in various directions - and you could perhaps decide on those directions based on the virtual microphones inside the microphone panel.

Like most of these kinds of things, there's no absolutely correct way to do it - but the journey is half the fun - definitely post back as you make your choices, I'm sure there are some excellent ideas on other threads and some members with their own experiences in making similar rigs.

If you wish to spare no expense there are many interesting audio systems which you could collect up into quite a studio. If budget is tight there could be some really good used speakers you might be able to purchase. If recording/monitoring/mixing/etc. you might want to bite on some newish flat monitors, but if you're most interested in playing in the moment, maybe some large used speakers could be ideal.

If you think of a few particular things to point to for help, I'm pretty confident someone will know where you're up to and know of a solution.

I'm looking forward to more of your videos and any more questions you'd like to post on your setup. Cheers.

Pianoteq Studio Bundle (Pro plus all instruments)  - Kawai MP11 digital piano - Yamaha HS8 monitors

Re: Sound level (loudness) of the pianos what were modelled

The initial question, quite relevant, bounces me back to the following problem for which "landmarks" would be useful:

A: What sound level (in db, typically at 512 hz / # C4), at the listener's ears, related to each of the different conventional levels (ppp, pp, mp, mf, f, ff, fff) could we advise "typically" (although this is highly subjective) in the following 4 cases on a real grand acoustic piano:
** as a player, (for his own pleasure, without worrying about the presence of possible listeners - but with preservation of his ears long-term) cf "monique" hearing curve measured a few years ago, damaged in several places by 15 years of play, several hours a day, at a little too high sound level on a 2m bosendorfer, in a living room, yet closed lid, ...
link: https://photos.app.goo.gl/CLRzGSVrEnwMF4wm8
** as a player, to prepare to please loved ones, in the context of an audition in an "ordinary" living room with listeners at 2.5 m on the back of the instrument
** as a player, to prepare for an optimal hearing for the audience in a concert hall
** as an auditor, placed in the front row in a concert hall (not too close anyway to enjoy the stage).

B: always, about the sound level, I was always surprised with Pianoteq by a very important level shift between:
* playing .midi files from Minnesota International Piano-e-Competition (recorded on a Yamaha Disklavier Pro), much higher level than:
* the game on a midi keyboard (in my case my Casio GP500 midi output-> Pianoteq), with a linear velocity curve, regardless of the level of pressure on the keys, from ppp to fff.

NB1: In the case of listening with headphones, I tried to estimate the perceived sound level from the sensitivity characteristics of headphones (n db for 1V at 1khz "at its" impedance at this frequency, by modulating the value of the perceived sound level according to the losses in db according to the frequency from the frequency response curve of the manufacturer of the headphones). The measurement of the voltage was made with an electronic voltmeter, calibrating it at 50 Hz according to the sound level of the sinusoidal signal generator (trueRTA software+inboard audio soundcard), and by measuring, beforehand, at a level in db given by the generator, the level of weakening of the set (generator + voltmeter) when the frequency becomes higher or lower between 15hz and 20khz to "try" to avoid bias in the measurement.

NB2: For the moment, I give up all Pianoteq measurements with loudspeakers, because for a regular room, it would be ideal to arrange the walls and the ceiling as well (cheaper than the Festival Hall of Bayreuth or Carnegie Hall but not really economic ( neither very aesthetic)
link: https://upload.wikimedia.org/wikipedia/...essais.jpg

Bruno

Last edited by bm (23-11-2019 08:44)

Re: Sound level (loudness) of the pianos what were modelled

Interesting stuff Bruno.

bm wrote:

hearing curve measured a few years ago, damaged in several places by 15 years of play, several hours a day, at a sound level little too strong on a 2m bosendorfer, in a living room, yet closed lid

Sorry to hear it (<<edit - un-intended pun there aah) - that's definitely along the lines I was posting about.

Probably quite a few long term headphone wearing dpiano players might find it interesting to swap their headphones around L&R <to> R&L. It may sound quite strange at first and hopefully for most it's just a novel thing to try but long term exposure to quite different signals left and right might result in hearing changes, whether physical or temporal. I try to mix up the use of B/A and A/B settings and audience perspective too but a lot of people will prefer B/A for realism's sake.

Not to give the impression it's all about danger though just worth considering in any audio setting where high volume is a component.

Hoping lo134 is getting on well with his project.

Pianoteq Studio Bundle (Pro plus all instruments)  - Kawai MP11 digital piano - Yamaha HS8 monitors

Re: Sound level (loudness) of the pianos what were modelled

Thank you so much for your valuable input. Prior to posting my goal was to reproduce the exact specifications of the "reference" piano perfectly. Now I realize that this may not be the best goal. As the reference piano, placed in my small living room is likely going to be overwhelming, unsuitable and will hurt my ears. Got to be sensible with this...70 - 80 db it is..

Re: Sound level (loudness) of the pianos what were modelled

Hi lo134,

that's good to know.

This probably needs adding to my other post I suppose (not counter to it but a little more dimension):

There's little reason not to have speakers capable of 100+dB if you like (and enjoy it in not grinding long time frames genuine crescendo can be awesome and it may be so inspiring to be able to experience above 80 - most music/playing though might indeed fall to 60 or 80 anyway if headroom is dynamically kind of real and you have great skill with range) - and lucky for us we can always control how loud we run the audio - I mostly still feel near realism at or below 80dB, thankfully or I wouldn't suggest it possible.

Maybe this is worth adding, so you or others maybe don't necessarily aim for smaller speakers or some small speaker array with it's own built in tech (things sounding like Xtra-super space-bassTM or zupa-spacial-XtremeTM processing) - very wary of that kind of thing. It will be better than that, to have a solid 2 speaker (or horns plus sub-woofer) sound system which doesn't struggle to output the higher volumes or use TMgimickery which tries to make small speakers sound bigger, so I'd still definitely suggest aiming for a speaker system comfortably capable of high(er) volumes is all, as it's a point of disappointment, easily avoided. It's not fun to find your system is struggling to make 80dB seem 'real' A system which can easily output more is likely to see you in a sweet spot in terms of physical speaker operation, rather than hearing them near clipping (or hearing speaker cone/coil or other stresses interfering with the tones, or even distortion).

Wishing you the best!

Pianoteq Studio Bundle (Pro plus all instruments)  - Kawai MP11 digital piano - Yamaha HS8 monitors

Re: Sound level (loudness) of the pianos what were modelled

Thank you so much Qexl for sharing your valuable experience and insights! I totally agree with you. Aiming for 70-80 db most of the time does not mean getting speakers that can only do 70 - 80db and have to strain to go louder (although most speakers are capable of going louder than that). It is really important to have the dynamic reserve.

I tried a set of KEF LS50 before, and it sounded absolutely fantastic, but ultimately I did not keep it in the system long term because it seemed to have a bit of trouble keeping up with the volume when I "bang" on the piano. I got so worried that I was going to damage the speakers (probably an unfounded worry) that it affected my ability to lose myself in the music.

My current system consisted of a pair of Tannoy Monitor Gold 15 inches concentric speakers. While I cannot say that they sound better than the KEF LS50s, I know they are able to withstand anything I do with the piano. Now it is my ears that is the "bottleneck" and I definitely have to watch the volume to protect my hearing.

Re: Sound level (loudness) of the pianos what were modelled

Wow, either of those speakers are very desirable to be sure. I think you know what you're doin'

You'd know that you'd likely get more clarity from the KEF LS50s but I don't know if I'd want to give up those Tannoys for playing Pianoteq though either

Maybe instead of thinking in terms of replacements, have you considered adding a pair of flat response near-field monitors - seems like it might be useful.

That way you have the air thumping Tannoys for playing/performing and some reference monitors to help with the other side of things, mixing your super enjoyable audio/videos?

Getting a 3rd pair of sweet speakers like the KEFs if budget isn't a prob would be the makings of a pretty stunning setup. The KEFs would make such excellent user-land reference speakers (and for listening enjoyment of course) and/or in addition to the Tanoys, for placement experiments for realism.


I imagine an LS50s or small near-field on floor, facing upwards and situated near mid to treble hammers (off centre to the right) and the other one angled facing 45 up and to the right (like lid throwing sound to the right side) nearer the foot of the virtual piano, with the Tannoys at half-piano length and not too wide and kind of aimed a little past your ears, so not focusing the signal too centrally. With all that sound filling the space it could be awesome - the Tannoys seem a fantastic basis for it and the KEFs bringing some air.

I can see those 3 speaker types though as a perhaps high-end but excellent working kit, from playing/performing, to recording/mixing and for final listening testing (not going into other devices and stereos you can use for listening to your recordings).

But, even some used small speakers for a song might do with something like this setup format below, top down view in stick figure notation:

{}    KEFs or small nearfeilds
[]    Tanoys
 ^    facing up
 »    facing right
:)    happy pianist



              {}^»45°




        [ ]                [ ]


                    {}^
                    
      LlllLllLlllLllLlllLllLl
                :)
Pianoteq Studio Bundle (Pro plus all instruments)  - Kawai MP11 digital piano - Yamaha HS8 monitors