Topic: A thick soundcarpet

Om a real Grand it is possible to build the sound to a really thick sound-carpet, a very big sound! For example if you octave to basnotes and "tremolo" them (I don't know if that is the way to say that you play those two notes again and again one after another quite rapidly) and at the same time play some low accord the sound will keep on enlarging and be really "big". I don't know if you know what I mean?
But this is one thing I really miss in the digital world, and unfortunately I still miss it in Pianoteq, even if it's better...

Is there someone else who have thought of this?

greetings

Re: A thick soundcarpet

Hello berghs.kedjan

I do understand the effect you have described on a real grand piano.  To state my understanding, I describe it as the sound growing (seemingly all out of proportion) much larger than what is attainable in a digital instrument in general, and Pianoteq in particular.

Let's discuss what is happening in a real piano, and then show why this is not readily attainable in the digital/electronic world, shall we?

The sound-producing capability of a real grand piano rests upon two resources:  1) the tremendous potential mechanical energy contained in approximately 230+ steel strings, each stretched to 200+ pounds; and  2) the physical size of a grand piano's soundboard is multiple times larger than even the largest home/studio speaker system.

There is a third restriction, not of the physical piano, but that of the digital medium wherein digital instruments' signal amplitude literally runs into a wall (namely, all of the 16 or 24 bit digits are all set to 1) -- one cannot generate larger sound in digital than the maximum electrical signal described by all 1's in 16 or 24-bit code.

Also, there is a fourth restriction, that of the analog reproducing system not being able to LINEARLY amplify the dynamic range equal to that of a real grand piano, without some form of compromise in the sound -- either in the amplifier running out of power, or the speakers running out of displacement.

Let's discuss each of these topics separately:

The (potential) energy stored in highly tensioned steel piano strings arrives from some 230+ steel strings each loaded with over 200 pounds of tension.  A grand piano's frame literally must support close to 50,000 pounds (25 tons -- nearly 22,700 kilograms) of tension, BEFORE a single hammer strikes a string.  It is exactly because of this high tension that hammer-struck strings are able to create such loud sounds, and maintain their resonance for up to several dozen seconds if left undamped.

This energy of vibrating strings is transmitted to the piano's soundboard by means of the two bridges.  The physical surface area of a grand piano's soundboard is many, many times greater than the surface area of even the largest home/studio speakers.

The above two paragraphs describe why a grand piano is capable of producing a huge sound if the dampers are released, and one plays rolling bass tremolos of the type you described.  The dynamic range of a real grand piano may be in excess of 60 decibels from the softest to the loudest noises it is capable of producing.

Now we must consider the nature of what 60 decibels means in terms of electronic equipment required to produce such a wide dynamic range.  An almost unnoticeable change of 3dB requires a doubling of amplifier output, between any starting loudness and a resulting 3dB larger loudness.  This is true whether the starting sound goes from 60 to 63dB,  92 to 95dB  or 121 to 124db.

Before this gets too technical (and possibly boring), let me state up front that being able to reproduce a 60dB dynamic range of a piano requires an amplifier and speaker system that can handle a MILLION times swing in output signal!  If we can agree that 3dB change requires the amplifier to double its signal, that a 6dB change requires an amplifier to quadruple its signal, and a 10dB change requires a tenfold increase in signal amplification --- then a 20dB change requires a one-hundred fold increase (tenfold x tenfold), a 30dB change requires a one-thousand fold increase, a 40dB change requires a ten-thousand fold increase, a 50dB change requires a one-hundred-thousand fold increase, and a 60dB dynamic range requires a one-million fold increase in signal output.

Now, how many of us have computer speakers, home stereo systems or studio monitors that can handle a million times swing in input voltage?  My personal studio has three professional amplifiers that total 2000+ watts per channel at <0.1% distortion, but my speakers would be fried if I were to attempt to feed them full power.  Besides, a speaker system has a fixed transducer area that can only be displaced only a fixed maximum amount.

Restated, an amplifier/speaker combination "runs out of gas" in attempting to duplicate the dynamic range of even a moderately sized grand piano.

Yes, I hear you ....  what about all of the 144db theoretical range of a 24-bit digital system?  Well, friends, that is a theoretical limit based on the mathematical calculation.  In real life, a the sound of a single grand piano can be instantly told apart from even the finest home/studio reproducing system.


In summary, the sound of a single grand piano whose 230+ strings tends to "grow" when a pianist performs a bass note tremolo with the dampers raised, and additional strings join in on the sympathetic resonance.  In contrast, a set of speakers can only do one thing:  move to and fro.  When you attempt to play many notes through a stereo system, the sound literally "collapses", whereas the sound continues to grow when playing a real piano.

I also imagine that many of us have electronic systems that can reproduce a 60dB dynamic range.  Fair enough -- they can get louder by 60dB BUT I doubt they can reproduce the 60dB (or one-million fold) change in signal input without seriously distorting the sound.  Want proof?  Just realize that THIS is why even the finest stereo system has a difficult time sounding UNMISTAKABLY similar a single grand piano!

(By the way, this 60dB swing in signal is precisely the reason that many commercial recording studios apply compression and/or limiters to their CDs.  If they didn't resort to some form of compression/limiting, the resulting sound would be too soft in the soft passages, and simultaneously too loud in the loudest passages.  Customers would be constantly adjusting their volume controls -- distortion, not withstanding.)

I hope this was food for thought.

Cheers,

Joe

Last edited by jcfelice88keys (14-05-2010 04:53)

Re: A thick soundcarpet

Best way to get this type of sound currently is to use an outboard processor -or software effect/VST- controllable with MIDI continuous control such as an expression pedal.  Your right foot would already be on sustain/damper so your left foot could control the external/internal effect level.  Experiment with delays/slapback with the feedback turned up.  This will cause a feedback loop that will build upon itself as you increase the effect level with the expression pedal.  You can also run the output of this effect into a separate amp modeler or light tube distortion of your flavor.  Quick multi-tap random delays are good.  I am fortunate to have an older Yamaha UD Stomp which has 8 simultaneous delay channels that you can go wacky with and full MIDI control including its own expression in jack.  There's a lot of inexpensive solutions these days - virtual effects in particular.  A good place to look for plug-ins is at http://www.kvraudio.com

Last edited by Cellomangler (14-05-2010 05:42)
"Downing a fifth results in diminished capacity."

Re: A thick soundcarpet

I thought Pianoteq was actually pretty good.  (I assume you have tried increasing "Sympathetic Resonance"? )

I also think the Mezzo Kornel script (for Kontakt) does this very well.

Greg.

Re: A thick soundcarpet

Thank You for your response!

Joe, If my understanding of your post is correct it would be impossible to get this sound out of a recording of a real piano... (I must say that I haven't listened to this in recordings...)

The reason why I ask this is because Pianoteq simulate the piano and therefore should have more possibilities to simulate even this effect... Even if it is impossible to get it just as mighty as on a real grand it would be possible to build the sound a little bit more...  ;-)

And again: ThankYou!

Re: A thick soundcarpet

Very good post Joe.

We've come to believe that electronics (technology) can do anything - a false belief I think.  Just consider what's going on in the Gulf of Mexico - technology just keeps piling goof on top of goof.

Glenn

PS - I'm an applied scientist (engineer), and I long ago recognized that technology is not going to be humanity's crowning achievement (maybe music is).

Last edited by Glenn NK (15-05-2010 03:41)
__________________________
Procrastination Week has been postponed.  Again.

Re: A thick soundcarpet

Glenn NK wrote:

Very good post Joe.

We've come to believe that electronics (technology) can do anything - a false belief I think.  Just consider what's going on in the Gulf of Mexico - technology just keeps piling goof on top of goof.

Glenn

PS - I'm an applied scientist (engineer), and I long ago recognized that technology is not going to be humanity's crowning achievement (maybe music is).

Joe, If my understanding of your post is correct it would be impossible to get this sound out of a recording of a real piano... (I must say that I haven't listened to this in recordings...)

and berghs.kedjan wrote

The reason why I ask this is because Pianoteq simulate the piano and therefore should have more possibilities to simulate even this effect... Even if it is impossible to get it just as mighty as on a real grand it would be possible to build the sound a little bit more...  ;-)


Hello Gentlemen,

Thank you for your kind comments about my posting in thread.

@Glenn,

It's very gladdening to read that you are an applied scientist; likewise, I am a retired metallurgical engineer with advanced degrees in Metallurgical and Materials (Non-ferrous materials and polymers/composites) Engineering.  Although playing the piano for 54 years since age 3, I concurrently spent approximately 30 years in the USA steel industry, and sang for ten seasons with Sir Georg Solti and the Chicago Symphony Orchestra/Chorus. 

In addition, I have been tuning pianos since the 1960's.   I didn't acquire any formal education on the workings of pianos, but I have learned to observe pianos, and operation of their actions, with my eyes and listen to them with my ears, literally from the inside out of the instrument from an engineering vantage point.

Regarding the capability of state-of-the-art home/studio audio systems to fool a musician's ears that one is listening to an actual piano, I must state that I have heard some remarkable systems -- but have never mistook the sound of any stereo system for a real piano, or trumpet, or drum, etc.

One of the closest experiences of hearing a symphony orchestra reproduced was a recording session of Hector Berlioz's "Damnation of Faust", where I quietly sat in the back of the listening room as London/Decca records' engineers played back a digital recording to Solti on some custom B&W loudspeakers made for London/Decca.   The sound was marvelous!  It was loud!  It was dynamic!  .... but it still sounded like a recording in comparison to having been on the stage in Medinah Temple in Chicago with the 200+ chorus members plus 80+ CSO members playing live.

Now, back to Pianoteq:
I do not have delusions that a real grand piano is in the room when I play on Pianoteq.  Rather, the best it (and any other recorded sound medium) can do, is sound like an extremely fine recording of a well-regulated and maintained, concert-quality piano in a believable acoustic perspective.   I ask for no more than that, for the reasons of limitations of the sound reproduction process, cited in my first reply, apply to this thread.


Cheers,

Joe

Last edited by jcfelice88keys (15-05-2010 05:34)

Re: A thick soundcarpet

I believe the statements about the amount of stored energy in the strings in tension is misleading.
It is not energy available to be released and converted to sound.
Relatively small additions to it are made by the striking of the strings, some portion of that energy eventually dissipates as sound, some is lost to inefficiency.
When the note has finally died there is still the same amount of stored energy in that pair of strings, it is not consumed in the production of sound, it is merely a level of stored energy that remains in the piano.
It is an artifact of construction and that is about all it is.

That a sound reproducing system does not store comparable levels of energy does not mean that it cannot produce comparable sound.
================================
There is also a CLEAR lack of understanding as to what "all ones" and "all zeros" represent in binary data.
=================================
I agree that speaker systems have some limitations.
Those limitations and coloration have become so much a part of so much of what so many of us hear that they are included in our perceptions of what physical instruments, music, natural sound, even human voice "should" sound  like.
Good enough - and if the alternative is a 9 ft sound board let me state colloquially
"it ain't gonna happen HERE !"
(-:

Re: A thick soundcarpet

This is an interesting discussion about the limits of sound reproduction (as compared to production) which could also be extended to other areas of perception, like photography versus what our eyes (and brain) really sees or the illusion of life provided by movies, but let's restrain it to sound.

I also sang in symphony orchestra choirs and with smaller ensembles, but the effect of being inside a group of musicians is quite different from listening to the same from a distance, even in the best halls. This is similar to the player's position near the piano versus the audience listening from afar. This local effect can be approximated with good binaural recordings listened through headphones but I think it is harder to attain with louspeakers.

The best result I can think of as a good audience experience is a well recorded SACD such as the lastest Suzuki Bach recordings that reproduce very well the acoustics of a particular location kept constant throughout the series. The hall sound itself is then so well reproduced in multi-channel that it can mask the real room acoustics in which the listening is done, and be very close to a you-are-there experience (with a very good sound system of course) and I don't need a very high volume to get this effect. My amplifiers provide me with a total of about 500 watts rms for five channels (4+subw) but this power is just needed for peaks.

So, I was a bit skeptical about Joe Felice's power demands for piano sound reproducing since I still find very convincing listening to a good piano recording through headphones where probably less than one watt is needed...And anybody that was in a club or near a car with a booming sound system, or to a show given outdoors with loud amplification, can understand that it is easy to produce more decibels than a full symphony orchestra. Raw sound output is not music! It is noise.

But, when trying to play pianoteq (or other electronic instruments) through my high quality sound system, I was never impressed compared to using a pair of 200$ headphones. I know it might be a bit better with monitors that are made expressly for this purpose, but usually these are much more colored and this coloring of sound is to me unbearable.

I also tried multi-channel output and ambiophonic simulations in the past, but these don't work out well with pianoteq to my ears. The source has to be tailored explicitely for these "illusions" to work. Headphones still win.

So until real advances are made in sound equipment that completely eliminate coloring of sound at high volume and also reproduce a three-dimensional sound field that is not limited to a single point (you can have many but they are still point-sources) I will consider pianoteq a sound-reproducing instrument that I can play and enjoy, just as much as I would a good recording, but it is enjoyable to me only through headphones, this is the price to pay I think.

Re: A thick soundcarpet

When I was first getting serious about trying to reproduce the sound of a piano, a sound tech told me to use monitors with the biggest cones possible--he said he would never think of putting a piano or keyboard playing piano samples on stage with cones under 12". I don't have these at home, but I've played using big monitors, and they make an enormous difference in every aspect of the sound--the bass, the midrange, the treble, the carpet of sound. They just push a lot more air. I know it seems as though they would just be louder, but to my ears he was right---they seem to reproduce the sound more accurately, too. (I'm not speaking of "keyboard amps," but instead a pair of monitors driven by a powerful amp.)

On the other hand, there are many bad monitors with 12" cones, so you have to be careful. In any case, don't give up on getting a great sound. You've been to concerts where the "piano" sounded good, yes?

Re: A thick soundcarpet

Jake Johnson wrote:

On the other hand, there are many bad monitors with 12" cones, so you have to be careful. In any case, don't give up on getting a great sound. You've been to concerts where the "piano" sounded good, yes?

That's the problem with large "music instrument" speakers, they move more air easily (in the bass region mainly) so they distort less but still color the sound too much for me.

I know first hand about them too because when I was much younger, I used to play lead guitar in a band, and the sound we tried to get from the guitar was mostly "created" by the speaker and the "specialized" amp, not hi-fi at all. I did at that time try a hi-fi amp, and was surprised that most of the sound I associated with my guitar disappeared and distortion set in pretty fast too!

Of course, now I only hear pianos live (unamplified) in concert halls, I can't stand any amplification for classical concerts such as is done sometimes for free outdoors concerts that we get here in the summer.

By the way my subwoofer is a self-powered Velodyne with a 15" cone, great for frequencies under maybe 80-100Hz but filtered out higher.

Re: A thick soundcarpet

I haven't had a bass speaker with less than a 15 inch cone for close to 30 years.

I understand that there are some very good systems with several small speakers mounted on a relatively thin sound board, e.g. four 6 inch speakers arranged in a square on a large sheet of what is essentially 6 mm plywood supported at it's edges.

Anyway, yes the added and omitted elements of the reproducing equipment are as much a part of our experience as the taste of the wood in the wine.
We are also used to the "tinkley" sound of the high register of physical pianos and I often wonder what the direction of music might have been if builders could have eliminated that with different construction techniques/methods or design details.

Anyway, I think I'm about done with fussing over sound production and the emulation of physical instruments for a while.
I am going back to the music and happily tolerating the limitations of my current hardware sounds.
No Pianoteq for me, but it was fun looking and listening (-:

Re: A thick soundcarpet

aandrmusic wrote:

I believe the statements about the amount of stored energy in the strings in tension is misleading.
It is not energy available to be released and converted to sound.
Relatively small additions to it are made by the striking of the strings, some portion of that energy eventually dissipates as sound, some is lost to inefficiency.
When the note has finally died there is still the same amount of stored energy in that pair of strings, it is not consumed in the production of sound, it is merely a level of stored energy that remains in the piano.
It is an artifact of construction and that is about all it is.

Let's talk about this in a little more detail.  The tension imparted into a piano string is placed there in the manufacturer's scale design.  That tension takes the form of potential energy to cause the string to vibrate to and fro after it is struck by the hammer.  If there were no string tension, there would be no potential energy to convert to kinetic energy and back to potential energy -- basically the mechanics of a pendulum's oscillation in a gravitational field.

I agree with you that the total amount of potential energy remains constant, before and after the hammer has struck the string and after the string has come to rest.  The small amount of additional energy of the person's finger and resulting hammer impact sets the strings' oscillations into motion, and (after accounting for mechanical inefficiencies, etc. etc,) the desired by-product of this instrument is the acoustic energy heard by our ears.

If my original statement was found to misleading, then I apologize.  However, one cannot argue that modern instruments with their cast iron frames support many times the string tension of the wooden framed pianos of Mozart's time;  as a direct result, modern pianos are capable of emitting far more sound as a result of this increased string tension.


aandrmusic wrote:

That a sound reproducing system does not store comparable levels of energy does not mean that it cannot produce comparable sound.

The point I was making was that a fixed number of speaker transducers whose only functions are to move the air ... cannot do so in the manner that a piano makes sounds.  The speakers are limited in their surface areas and their excursion levels.  When many piano notes are played loudly on even a good stereo system, the sound "comparatively" collapses.  In contrast, in a real piano, where more and more strings' overtones are called into play ... the sound "grows".

It would be foolish to believe that a stereo system (given large enough speakers and powerful enough amplifiers) cannot get "louder" than a piano.  However, it is not only loudness we are talking about, here.  I submit that, sitting blindfolded in the same room with a Steinway D and a mastering quality stereo system, in a double blind test, I could still identify the real Steinway a statistically significant percentage higher than by mere 50-50 chance.


aandrmusic wrote:

================================
There is also a CLEAR lack of understanding as to what "all ones" and "all zeros" represent in binary data.
=================================

I would agree with your statement quoted above.  The only item I question is "who" has the clear lack of understanding.  In effect, a digital recording is effectively a "high speed barometer", capable of measuring ambient atmospheric pressure some 44,100, 48000, 96000 or 192000 times per second, and displaying for each sample the magnitude of the ambient air pressure.  Sometimes the air pressure is greater than ambient (a pressure wave), and sometimes the instantaneous air pressure is a trifle below ambient.  A to D and D to A converters work to encode and decode this information.  The result is similar to the signal intended to be captured and amplified by the squiggles of a phonograph needle.

The number of bits available is what finely distinguishes the various magnitudes of air pressure measurement.  These various various magnitudes are represented in base 2, with ones and zeros.  The point I was alluding to in the original post, was when the sound level gets excessive, the capturing/reproducing system literally runs out of "ones" (and runs into digital clipping).


Upon reading Mr. aandrmusic's statement quoted above, I subsequently went to the internet and Google searched "24-bit 144dB".  Here is one reply from Wiki --- of course, one may choose to believe or disbelieve what is written in the Wiki article and is quoted from the following URL:

http://en.wikipedia.org/wiki/Audio_bit_depth

Digital audio

A set of digital audio samples contains data that, when converted into an analog signal, provides the necessary information to reproduce the sound wave. In pulse-code modulation (PCM) sampling, the bit depth will limit quantities such as dynamic range and signal-to-noise ratio. The bit depth will not limit frequency range, which is limited by the sample rate.

By increasing the sampling bit depth, smaller fluctuations of the audio signal can be resolved (also referred to as an increase in dynamic range). The 'rule-of-thumb' relationship between bit depth and dynamic range is, for each 1-bit increase in bit depth, the dynamic range will increase by 6 dB (see Signal-to-noise ratio#Fixed point). 24-bit digital audio has a theoretical maximum dynamic range of 144 dB, compared to 96 dB for 16-bit; however, current digital audio converter technology is limited to dynamic ranges of ~120 dB because of 'real world' limitations in integrated circuit design.[1]

Technically speaking, bit depth is only meaningful when applied to pure PCM devices. Non-PCM formats, such as DSD or lossy compression systems like MP3, have bit depths that are not defined in the same sense as PCM. This is particularly true for lossy audio compression, where bits are allocated to other types of information, and the bits actually allocated to individual samples are allowed to fluctuate within the constraints imposed by the allocation algorithm.


aandrmusic wrote:

I agree that speaker systems have some limitations.
Those limitations and coloration have become so much a part of so much of what so many of us hear that they are included in our perceptions of what physical instruments, music, natural sound, even human voice "should" sound  like.
Good enough - and if the alternative is a 9 ft sound board let me state colloquially
"it ain't gonna happen HERE !"
(-:

I agree with your statement that if the alternate sound (to an electronic reproducing system) is a 9 foot soundboard, it won't happen.

So, let me ask you, please ... did there have to be this many words exchanged, when, in the end we each agree on the last colloquial statement?

Cheers,

Joe

EDIT:  Aha!  We had a troll in our midst.  The following quote is cited in one thread just before this entry.

aandrmusic wrote:

Anyway, I think I'm about done with fussing over sound production and the emulation of physical instruments for a while.
I am going back to the music and happily tolerating the limitations of my current hardware sounds.
No Pianoteq for me, but it was fun looking and listening (-:

Last edited by jcfelice88keys (16-05-2010 13:17)

Re: A thick soundcarpet

Just to reiterate what has been said a bit differently:  When piano strings are under high tension, there is a change in their properties of malleability, hardness, resonance -factors that effect the vibration/pitch, sustain, volume, etc., but the potential energy of the stretched string is not released unless its tuning post slips.  All the energy is kinetic and produced by the hammer -through our human metabolic process, of course.  For a digital sound system to reproduce a climatic pounding, ei, Jerry Lee dancing on the first couple of octaves (after nailing the damper down) would require compression/limiting or normal volume playing would have to be lower in volume in comparison and thus, have fewer bits to represent its data.  I'm fortunate not to be too concerned about exact accuracy to a real piano so long as I can be equally expressive.  Thus, the post processing can accomplish that for me.  But dynamics will always be a compromise when it comes to recording as headroom is a reality and a brick wall when it comes to digital.

Last edited by Cellomangler (16-05-2010 06:07)
"Downing a fifth results in diminished capacity."

Re: A thick soundcarpet

berghs.kedjan wrote:

Om a real Grand it is possible to build the sound to a really thick sound-carpet, a very big sound! For example if you octave to basnotes and "tremolo" them (I don't know if that is the way to say that you play those two notes again and again one after another quite rapidly) and at the same time play some low accord the sound will keep on enlarging and be really "big". I don't know if you know what I mean?
But this is one thing I really miss in the digital world, and unfortunately I still miss it in Pianoteq, even if it's better...

Is there someone else who have thought of this?

greetings

Did you mean this direction?:

http://www.forum-pianoteq.com/uploads.p...ing_01.mp3

I still do miss something too- when you hit the keys of a real grand very hard the sound becomes very expressive and "edgy". This is what I still miss a little in PTQ.
But after tweaking the parameters in PTQ-Pro and Version 3.6 I don't wanna play  other digital instruments anymore.
greetings,
Heinke

Re: A thick soundcarpet

azrael4 wrote:

Did you mean this direction?:
http://www.forum-pianoteq.com/uploads.p...ing_01.mp3
I still do miss something too- when you hit the keys of a real grand very hard the sound becomes very expressive and "edgy". This is what I still miss a little in PTQ...Heinke

Nice... but it does level out to an even tone rather than over modulating and distorting with that expressive edge we're talking about.  I've said this before, so forgive, but I just hope the Pianoteqnicians are not such "modeling purists" that they refuse to try post processing techniques to get that edginess as opposed to virtual modelling because for this type of sound, I think that would be a waste of programming effort and cpu horsepower.

Last edited by Cellomangler (18-05-2010 00:50)
"Downing a fifth results in diminished capacity."

Re: A thick soundcarpet

Cellomangler wrote:
azrael4 wrote:

Did you mean this direction?:
http://www.forum-pianoteq.com/uploads.p...ing_01.mp3
I still do miss something too- when you hit the keys of a real grand very hard the sound becomes very expressive and "edgy". This is what I still miss a little in PTQ...Heinke

Nice... but it does level out to an even tone rather than over modulating and distorting with that expressive edge we're talking about.  I've said this before, so forgive, but I just hope the Pianoteqnicians are not such "modeling purists" that they refuse to try post processing techniques to get that edginess as opposed to virtual modelling because for this type of sound, I think that would be a waste of programming effort and cpu horsepower.

yes, Azrael4, its quite good, but not really there yet...
Cellomangler, I still think that this "effect" is possible to modeling, maybe I'm wrong, I'm not a programmer.... And maybe, the possibility for the pianosound to grow in this way is one thing that should improve the sound (even if the speaker can't handle it...)? I don't know?

Re: A thick soundcarpet

skip wrote:

I assume you have tried increasing "Sympathetic Resonance"?
Greg.

I think this suggestion from Greg is very appropriate.

Re: A thick soundcarpet

Philippe Guillaume wrote:
skip wrote:

I assume you have tried increasing "Sympathetic Resonance"?
Greg.

I think this suggestion from Greg is very appropriate.

I thought I had, but probably not enough....

but it's right, this increase the effect a lot! At the same time it makes the sound deeper in a way... I think I like this... It's more alive... (even if its not only positive...)

Thank You!

Re: A thick soundcarpet

Cellomangler wrote:

Just to reiterate what has been said a bit differently:  When piano strings are under high tension, there is a change in their properties of malleability, hardness, resonance -factors that effect the vibration/pitch, sustain, volume, etc., but the potential energy of the stretched string is not released unless its tuning post slips.  All the energy is kinetic and produced by the hammer -through our human metabolic process, of course.  For a digital sound system to reproduce a climatic pounding, ei, Jerry Lee dancing on the first couple of octaves (after nailing the damper down) would require compression/limiting or normal volume playing would have to be lower in volume in comparison and thus, have fewer bits to represent its data.  I'm fortunate not to be too concerned about exact accuracy to a real piano so long as I can be equally expressive.  Thus, the post processing can accomplish that for me.  But dynamics will always be a compromise when it comes to recording as headroom is a reality and a brick wall when it comes to digital.

Depends what limits one decides to place on the number system;
16, 24, 32, 64, 128 bit integers ?
floating point ?
at SOME point it becomes a trivial task to represent a dynamic range that exceeds ...whatever you chose (-:
Forearm width chords on 12 ft Grands, explosions, etc.
It wouldn't have to wait for wider processors, multi word width arithmetic is nothing new.

The point ?  "digital" as a method of representing information need not be a limiting factor.
Processing power to handle it might be - for the time being.
Simplification and perhaps the population of some tables ahead of time might alleviate the processor power issue in the short term.  Just guessing (-:

Re: A thick soundcarpet

aandrmusic wrote:

-Depends what limits one decides to place on the number system;
16, 24, 32, 64, 128 bit integers ?
floating point ?
at SOME point it becomes a trivial task to represent a dynamic range that exceeds ...whatever you chose (-:
Forearm width chords on 12 ft Grands, explosions, etc.
It wouldn't have to wait for wider processors, multi word width arithmetic is nothing new. The point ?  "digital" as a method of representing information need not be a limiting factor.
Processing power to handle it might be - for the time being.
Simplification and perhaps the population of some tables ahead of time might alleviate the processor power issue in the short term.  Just guessing (-:

I assume you are talking about using multiple 16 bit (or other length) words strung/tied together, end-to-end so to speak, to increase the bit depth and thus the dynamic range?  (I'm not a rocket scientist, but I play one on TV)  Doesn't this require a major change in hardware for playback and recording, not to mention playback on dedicated devices?  Seems music technology keeps giving us tons of cool gadgets and fun ways of making music but the quality of the final audio has been allowed to degenerate, ei, MP3 and even compact discs.  I think it's been decided that our lives are filled with so much ambient noise that we can't appreciate dynamic range anymore -we wouldn't hear the subtleties over the roar.  At least there's still live performance, if done right with corporal punishment for rude mobile devices...

"Downing a fifth results in diminished capacity."

Re: A thick soundcarpet

Cellomangler wrote:
aandrmusic wrote:

-Depends what limits one decides to place on the number system;
16, 24, 32, 64, 128 bit integers ?
floating point ?
at SOME point it becomes a trivial task to represent a dynamic range that exceeds ...whatever you chose (-:
Forearm width chords on 12 ft Grands, explosions, etc.
It wouldn't have to wait for wider processors, multi word width arithmetic is nothing new. The point ?  "digital" as a method of representing information need not be a limiting factor.
Processing power to handle it might be - for the time being.
Simplification and perhaps the population of some tables ahead of time might alleviate the processor power issue in the short term.  Just guessing (-:

I assume you are talking about using multiple 16 bit (or other length) words strung/tied together, end-to-end so to speak, to increase the bit depth and thus the dynamic range?  (I'm not a rocket scientist, but I play one on TV)  Doesn't this require a major change in hardware for playback and recording, not to mention playback on dedicated devices?  Seems music technology keeps giving us tons of cool gadgets and fun ways of making music but the quality of the final audio has been allowed to degenerate, ei, MP3 and even compact discs.  I think it's been decided that our lives are filled with so much ambient noise that we can't appreciate dynamic range anymore -we wouldn't hear the subtleties over the roar.  At least there's still live performance, if done right with corporal punishment for rude mobile devices...

The point I tried to make is that it isn't digital representation as a FORM that limits dynamic range, although I agree that defaulting to the lowest commonly available format might.
I am not current on A to D and D to A converters, in fact it has been a very long time since I endured transatlantic flights BECAUSE OF the then technology involved (-:
At a guess they probably work in 4 or 8 bit "slices" and an arbitrary number of those slices are "stacked" with each having an initial bias voltage to set them to the range in which they are to operate. 
Not "hard" to do, but probably expensive due to a limited market - the mass market being satisfied with MP3 noise, etc.
Just saying that "digital" may be a brick wall, but it can be moved so far out (beyond an horizon) that other obstacles will impede progress towards it.

I should probably mumble something about sample rate too ?
That could also be stepped up several fold, even with current sota parts, i.e. 4, 8 or n way interleaving.
Again, expensive due to a very limited market, but attainable with just a little imagination and enough MONEY !
(-:

Whether or not any of this matters, given the limitations of microphones, speaker systems, the human ear, etc. is a whole 'nother subject - IMAO.