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#1375835 - 02/16/10 06:03 PM Re: The DP BSD Project! [Re: sullivang]
dewster Offline
4000 Post Club Member

Registered: 12/07/09
Posts: 4362
Loc: Northern NJ
Originally Posted By: sullivang
Dewster: Please consider expanding your test to include repitition rates of the actions.

You want the keyboard testing department, that's down the hall.
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THE RD-700NX Thread!
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#1375853 - 02/16/10 06:14 PM Re: The DP BSD Project! [Re: dewster]
sullivang Offline
2000 Post Club Member

Registered: 07/05/09
Posts: 2231
Loc: Sydney, Australia
Originally Posted By: dewster

You want the keyboard testing department, that's down the hall.


Thanks - I found the right department: ;^)
http://www.youtube.com/watch?v=muCPjK4nGY4
(warning: off topic. This is the "speaking piano" clip - looks like they definitely have the right kind of hardware to do the reptition test, though!)

Greg.

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#1375865 - 02/16/10 06:26 PM Re: The DP BSD Project! [Re: ChrisA]
dewster Offline
4000 Post Club Member

Registered: 12/07/09
Posts: 4362
Loc: Northern NJ
Originally Posted By: ChrisA
Originally Posted By: bitWrangler
...has anyone (dewster) compared a raw wav to the corresponding mp3 to make sure that the encoding itself isn't introducing artifacts that are then being measured...

If this where a purely listening test I'd say it does not matter. But seeing as the test is analytic, it might.

For example does the MP3 encoding process preserve phase information at all frequencies? Is amplitude quantitization uniform across all frequencies? MP3 is designed to preserve only what the human ears would notice and remove the rest.

Yes, I agree, good point. I did actually wonder about this myself. But most DP compression artifacting is so crude it is clearly audible, and this correlates pretty well with what I am seeing in the MP3s. I also think a WAV file would be rather onerous for people to transfer and store, so if MP3s are sufficient, then they have a clear advantage there.

I will analyze a WAV file source and an MP3 generated from it to see if it makes any difference and report back.
_________________________
The DPBSD Project!
THE RD-700NX Thread!
DPs Exposed! (nekid pichures!)

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#1375873 - 02/16/10 06:36 PM Re: The DP BSD Project! [Re: dewster]
bitWrangler Offline
1000 Post Club Member

Registered: 03/14/07
Posts: 1789
Loc: Central TX
Originally Posted By: dewster
Originally Posted By: ChrisA
Originally Posted By: bitWrangler
...has anyone (dewster) compared a raw wav to the corresponding mp3 to make sure that the encoding itself isn't introducing artifacts that are then being measured...

If this where a purely listening test I'd say it does not matter. But seeing as the test is analytic, it might.

For example does the MP3 encoding process preserve phase information at all frequencies? Is amplitude quantitization uniform across all frequencies? MP3 is designed to preserve only what the human ears would notice and remove the rest.

Yes, I agree, good point. I did actually wonder about this myself. But most DP compression artifacting is so crude it is clearly audible, and this correlates pretty well with what I am seeing in the MP3s. I also think a WAV file would be rather onerous for people to transfer and store, so if MP3s are sufficient, then they have a clear advantage there.

I will analyze a WAV file source and an MP3 generated from it to see if it makes any difference and report back.


Chris, one (potential) major issue is that there really is no standard for the actual lossy compression part of the mpeg3 "standard", so in theory seeing the varying "quality" on these graphs could be at least in part related to different codecs being used. From a practical standpoint, this may not be an issue if there is general industry adoption of a few (or one) codec, but I don't know if this is the case. And to answer your question, I believe that the quantization values vary depending on frequency (and even then isn't necessarily constant for a given frequency, you can also look for the presence of other frequencies at a given point and assign bits as necessary).

dewster, I understand that it is far easier and faster to upload mp3's, but if there are artifacts being introduced by the compression, then a significant part of what you are attempting to do may be rendered moot. Better to get this part squared away regardless of any implications to convenience.

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#1375890 - 02/16/10 06:51 PM Re: The DP BSD Project! [Re: zaba19]
dewster Offline
4000 Post Club Member

Registered: 12/07/09
Posts: 4362
Loc: Northern NJ
Originally Posted By: zaba19
I have uploaded a recording of Roland HP-307. The input level wasn't great, I hope normalization didn't screw anything.
http://www.mediafire.com/?2mwkmyhrzny

Wow, another 2010 flagship, thanks loads!

Your file is quite something. It's hard to tell what's going on in there. I think I can hear something like looping, but not quite, and it isn't obvious in the spectral views. This won't be a quick or easy review, I'll have to devote some time to it.
_________________________
The DPBSD Project!
THE RD-700NX Thread!
DPs Exposed! (nekid pichures!)

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#1375897 - 02/16/10 06:58 PM Re: The DP BSD Project! [Re: dewster]
Kawai James Online   content
9000 Post Club Member

Registered: 09/06/07
Posts: 9679
Loc: Hamamatsu, Japan
kawaian, this thread perhaps isn't the best place to discuss these points. However, since you have raised the matter, please allow me to respond.

Quote:
the mosquito Noise might be due to the fact that I did an MP3 compression two Times which is not really a good thing to do. I recorded the sample directly on a USB stick using the internal Recording functionality of the DP.


I do not believe the CA93/CA63 currently allows MIDI files stored on USB memory to be loaded into memory, played back, and simultaneously resaved as WAV/MP3 audio files. Therefore am I correct in assuming that you used a computer to play back the MIDI file?

Quote:
Unfortunately wav Recording was not possible, it always led to jumps and crackles in the Recording (another flaw of CA-63).


As ChrisA correctly notes, if the CA93/CA63 is able to record to MP3 without any problems, but WAV files result in pops and crackles, it's most likely that the transfer speed of your USB stick is too slow. This point is highlighted in the 'Troubleshooting' table on page pp.82 of the owner's manual:

The file transfer speed of the USB memory device may be too slow to
play the audio file. Please try using a different USB memory device,
ensuring that it conforms to USB2.0 Hi-Speed standards.


Quote:
The Recording function is very sluggish and regurlaly freezed the DP so that I needed to reset the DP...


Again, this is likely due to a slow USB stick.

Quote:
Need to talk to KAWAI James soon!


Indeed, please feel free to send me a message.

Kind regards,
James
x
_________________________
Employed by Kawai Japan, however the opinions I express are my own.
Nord Electro 3 fan & occasional rare groove player.

"Richard, none of us could forget you have a CLP-990." - EssBrace, 2014

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#1375900 - 02/16/10 07:03 PM Re: The DP BSD Project! [Re: sdw91]
dewster Offline
4000 Post Club Member

Registered: 12/07/09
Posts: 4362
Loc: Northern NJ
Originally Posted By: sdw91
I recorded the P-80 again, this time with reverb off

Thanks! I probably get to it tomorrow.
_________________________
The DPBSD Project!
THE RD-700NX Thread!
DPs Exposed! (nekid pichures!)

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#1375913 - 02/16/10 07:25 PM Re: The DP BSD Project! [Re: bitWrangler]
dewster Offline
4000 Post Club Member

Registered: 12/07/09
Posts: 4362
Loc: Northern NJ
Originally Posted By: bitWrangler
dewster, I understand that it is far easier and faster to upload mp3's, but if there are artifacts being introduced by the compression, then a significant part of what you are attempting to do may be rendered moot. Better to get this part squared away regardless of any implications to convenience.

There's a lot more to it than simple convenience. As I said above, what I see in the MP3 files correlates closely to what I can hear, so I've come to trust it to some degree. And many of these things are very clear, both audibly and visually, so there is no way I'm hearing things or hallucinating with those. The Kawai CA-63 stretching issue is near the limits of what I'm comfortable including in a review, and KAWAI James' feedback there could be very helpful in resolving that one way or another.

And as I said above I will do an in-depth comparison to see how a WAV and MP3 from the same source compare, though you may want to do this experiment yourself. Over at the Adobe site you can register for free and then download a free 30 day demo of Audition. Please don't take my word for anything, that's not what this is about at all. If you do get Audition installed, please download some of the MP3s and see how your analysis compares to mine - I'd be glad to have some feedback, even if it is negative.

Anyone here done graduate work in psycho-acoustics or audio compression want to chime in? I don't want this effort to boil down to whether people trust me or my expertise (such as it is) or not.
_________________________
The DPBSD Project!
THE RD-700NX Thread!
DPs Exposed! (nekid pichures!)

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#1375914 - 02/16/10 07:30 PM Re: The DP BSD Project! [Re: dewster]
ChrisA Offline
3000 Post Club Member

Registered: 12/28/08
Posts: 3841
Loc: Redondo Beach, California
Quote:
I have uploaded a recording of Roland HP-307...

...It's hard to tell what's going on in there.


A read an interview with one of the Roland engineers. This has before Supernatural had been applied to acoustic pianos but he describe the process as sample based but something different from what Yamaha and other do. They have multiple channels of samples for each note and what we hear is the weighted sum of the channels where the sums are envelopes.

Some channels might contain overtones and others a fundamental. some channels might be note stretched and others not. Some may be seconds long and some only contain note attack. And then they say the sample is really a composite from several acoustic instruments. But then when I read this they were doing drums and brass instruments, not ACs and they said the method differers for each instrument.

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#1375917 - 02/16/10 07:32 PM Re: The DP BSD Project! [Re: ChrisA]
dewster Offline
4000 Post Club Member

Registered: 12/07/09
Posts: 4362
Loc: Northern NJ
Originally Posted By: ChrisA
A read an interview with one of the Roland engineers.

Any link to that interview? I'd really like to read it.
_________________________
The DPBSD Project!
THE RD-700NX Thread!
DPs Exposed! (nekid pichures!)

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#1375927 - 02/16/10 07:49 PM Re: The DP BSD Project! [Re: sullivang]
ChrisA Offline
3000 Post Club Member

Registered: 12/28/08
Posts: 3841
Loc: Redondo Beach, California
Originally Posted By: sullivang
Dewster: Please consider expanding your test to include repitition rates of the actions. To do this properly I guess you'd need a pretty sophisticated device that could strike the keys with a variable rate...


For that you don't need a robot. Even an unskilled beginner pianist can bang on one key fast (using both #2 fingers alternating) while recording to a MIDI file. do that for 15 seconds and vary the rate randomly then look at the file to see the closest notes. If the key is played to fast it simply will not record. So examine the midi file later to find the threshold of recording.

I suspect it will be years, if ever before I can over play my keyboard.

What is the typical fastest repeat rate on a grand piano?

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#1375930 - 02/16/10 07:51 PM Re: The DP BSD Project! [Re: dewster]
Zinfan Offline
Full Member

Registered: 05/31/09
Posts: 110
Loc: Grover Beach, Ca
I'd be curious to see the BSD file run through a CP-1 Electric Piano not an AP. Aren't the EP's fully modeled in the CP-1 while the AP's are sampled with modeled effects added on? Not sure what might come of such a test or if the BSD file is only relevant to AP's.


edited for speeling.


Edited by Zinfan (02/16/10 07:52 PM)

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#1375990 - 02/16/10 09:26 PM Re: The DP BSD Project! [Re: ChrisA]
sullivang Offline
2000 Post Club Member

Registered: 07/05/09
Posts: 2231
Loc: Sydney, Australia
Chris,
Yes, the method you describe would be pretty good, but I would still prefer a mechanical device to do the test, to eliminate the human factor. For example, how would we know for sure that the person who did the test was lifting their fingers up far enough for the keyboard to register it? When I do the two-finger test with my keyboard, it is difficult to get a consistent behaviour. I can sometimes get a short burst of rapidly repeated notes, but then it will stop. This may be my fault, but it could also be the keyboard, to some extent.

By your own admission, you are not good enough to test your own keyboard. ;^) (yes, I realise that if your keyboard is behaving as fast as, or even faster, than a good grand piano, then the fact that you can't reach it's limit is mostly academic)

I don't know what the repitition rate of a grand piano is - good question.

Greg.

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#1376023 - 02/16/10 10:13 PM Re: The DP BSD Project! [Re: sullivang]
ChrisA Offline
3000 Post Club Member

Registered: 12/28/08
Posts: 3841
Loc: Redondo Beach, California
Originally Posted By: sullivang
Chris,
Yes, the method you describe would be pretty good, but I would still prefer a mechanical device to do the test, to eliminate the human factor. For example, how would we know for sure that the person who did the test was lifting their fingers up far enough for the keyboard to register it? When I do the two-finger test with my keyboard, it is difficult to get a consistent behaviour. I can sometimes get a short burst of rapidly repeated notes, but then it will stop. This may be my fault, but it could also be the keyboard, to some extent.

By your own admission, you are not good enough to test your own keyboard. ;^) (yes, I realise that if your keyboard is behaving as fast as, or even faster, than a good grand piano, then the fact that you can't reach it's limit is mostly academic)

I don't know what the repitition rate of a grand piano is - good question.

Greg.


My point was that it does not matter how fast you bang on the keys or if you even know how fast you are banging on the keys all you have to do is randomly drift the banging speed to both faster and slower than the DP's threshold. Then examine the MIDI file to find the threshold Find the minimum space between two notes that is statistically repeatable and the reciprocal of the space is the repeat rate. I don't think you have to control the keyboard technique.

You say some time the string of notes stop and some times you get a short burst. You'd expect it to stop if you play to fast. Artificial "impossibly fast" short burst are also a failure mode when over driven. Look for the place where a histogram falls off a cliff. I think a good statistical analysis is cheaper than building a robot.

The way these key sensors work is with a timer. They measure the time between two points and assume this is proportional to velocity.

But I think for 90% of us this is moot.

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#1376081 - 02/16/10 11:31 PM Re: The DP BSD Project! [Re: dewster]
Dr Popper Offline
1000 Post Club Member

Registered: 12/30/09
Posts: 1720
Loc: Hancock Park LA (not again)
Originally Posted By: dewster
Originally Posted By: dewster
I was seriously considering the CP1 until I found out the massive dim-able product logo on the back only has three levels of illumination. At that price-point I expect at least four levels. Yamaha blew it right there IMO.

That was sarcasm, BTW. Guess I should have used a smiley or something. It's getting so you have to explain even feeble attempts at humor to death around here.


No you don't I thought it was funny ... you are beginning to remind me of Geoffry Rush in Quill's .....
_________________________
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Disclosure : I am professionally supported by but not beholden to various musical instrument manufactures including Yamaha

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#1376110 - 02/17/10 12:04 AM Re: The DP BSD Project! [Re: Dr Popper]
sullivang Offline
2000 Post Club Member

Registered: 07/05/09
Posts: 2231
Loc: Sydney, Australia
Chris,
I understood what you meant completely. My point is that I am not certain that all of us can reliably strike the keyboard fast enough, and consistently enough, to produce a quality measurement. I am also not confident that the keyboard will cease "repeating" in a reliable fashion. I.e - as the repetition rate is approached, I think the keyboard will start to behave a bit erratically. (I think my keyboard does, but I can't prove it). If we use a precise mechanism to do the repetition, that eliminates the human error. If we had the hardware, we could gradually increase the rate, and we could find the threshold at which the action starts to become erratic, and then keep increasing the rate to see where it stops completely, for example.

For your keyboard, you have admitted that you can't strike it fast enough to reach the keyboard's limit, so you simply cannot measure your keyboard's repetition rate. For you, it is COMPLETELY academic, of course, but others may want to know what your keyboard is capable of - not what YOU are capable of. ;^)

I think it would be a very interesting test. For example, if the RD700GX, which has a high quality action, but without the triple sensors, can repeat faster than a Casio PX-130, which does have three sensors, I'd be very very interested to know that.

Greg.

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#1376161 - 02/17/10 01:52 AM Re: The DP BSD Project! [Re: dewster]
mucci Offline
1000 Post Club Member

Registered: 01/29/10
Posts: 1070
Loc: Munich, Germany
Originally Posted By: dewster
Originally Posted By: kawaian
the mosquito Noise might be due to the fact that I did an MP3 compression two Times which is not really a good thing to do.

If you want to post the original MP3 I'll take a listen to that too.


@dewster, thanks, here's the original file directly recorded with CA-63:

http://www.mediafire.com/file/rhuwxhnz32i/KAWAI_CA_63_ORG.MP3

But I will redo this anyway, once I have the firmware update, and I'll try to also get the sympathetic resonance included somehow since this is a very important part of the beautiful sound of the new CA models.
_________________________
<~ don't test forever - play and enjoy! ~>

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#1376178 - 02/17/10 03:08 AM Re: The DP BSD Project! [Re: dewster]
zaba19 Offline
Full Member

Registered: 09/08/09
Posts: 33
Originally Posted By: dewster
Your file is quite something. It's hard to tell what's going on in there. I think I can hear something like looping, but not quite, and it isn't obvious in the spectral views. This won't be a quick or easy review, I'll have to devote some time to it.


Your observation seems to be very much like my first impression. On my previous HP-3e I was hearing loops all the time. When I first tried HP-307 at store I was overwhelmed by the difference. One of the things I was trying to figure out was if there's audible looping or not and I couldn't really tell what Im hearing.
The samples or whatnot were really convincing and keyboard years ahead of my former piano so I didn't think long. I refrain from doing any review on the piano because I can't compare it to any other model, not even previous Roland's HP-207.
Im eagerly awaiting your test results smile


Edited by zaba19 (02/17/10 03:09 AM)

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#1376181 - 02/17/10 03:14 AM Re: The DP BSD Project! [Re: Colleen_500]
madshi Offline
Full Member

Registered: 12/08/09
Posts: 62
Originally Posted By: Colleen_500
These tests are very interesting, Dewster, but not as compelling as Lawrence's and Dr.Popper's reviews of the CP-1.

So significant that I ordered a CP-1 this morning, as did one of my students.

I think Yamaha has a winner on it's hands with this instrument; I know I trust Lawrence's(Melodialworks) and Dr.Popper's real world, hands on experiences far more than putting any real confidence in a bunch of tests.

These guys are pros in every sense of the word.

All in all, it still comes down to what is important in an instrument, and it's much easier, and far safer, to take the word of respected and talented players, than it is to look at squiggly lines on a screen.

IMHO your way to choosing which DP to buy is not very good. When deciding about a new DP purchase, there are 4 possible sources of information:

(1) Marketing material.
(2) Technical analysis (dewster).
(3) Reviews of other players (Dr Popper, Lawrence).
(4) Playing the damn thing yourself, obviously.

In the end (4) should always be the deciding factor. Deciding on (2) alone would be quite stupid. Deciding on (3) alone is IMHO not very clever, either. If you really want to make a clever choice, you should collect all information you can get, weigh them in some way ((4) should have the highest weight by far), and then decide based on that.

What exact purpose do dewster's tests have? Are they intended to make you decide which DP to buy? *Definitely not*. They are intended to cut through the marketing bullshit and give us the information which should have been part of the manufacturer's "technical specification" from the get go.

So what do dewster's tests really say about the CP1? Do they say that it's a bad instrument and nobody should buy it? Nope! They only say that the basic underlying technical implementation of the CP1 is still in some parts similar to most older DPs and not the "no-compromise" approach some of us have been hoping for. But the instrument can still sound and play great! Actually better than most others (since most others share the same limitations). But what dewster's tests clearly show is that the CP1 could have been even better than it actually is. Which also means that there will probably be future DPs which will sound even better (noticeably better) than the CP1. Or to take it directly from the horses mouth:

Originally Posted By: KAWAI James
a few months ago I was chatting to a Yamaha DP engineer about sampling, and why even the top-end Clavinovas and stage pianos didn't utilise 88-key sampling. He argued that 88-key sampling (i.e. not stretching samples over multiple keys) wasn't the most efficient way of capturing an acoustic piano, and that devoting more memory to longer samples (and thus reduced looping) results in greater authenticity.

Basically the Yamaha DP engineer said that longer samples result in greater authenticity. But the CP1 does not have longer samples. There you have it.

Again: The CP1 can still be great - compared to most current DPs! But it does use short length samples. So, according to the Yamaha DP engineer, there's still room for greater authenticity.

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#1376190 - 02/17/10 03:41 AM Re: The DP BSD Project! [Re: zaba19]
7even Offline
Full Member

Registered: 01/28/09
Posts: 151
Originally Posted By: zaba19
Originally Posted By: dewster
Your file is quite something. It's hard to tell what's going on in there. I think I can hear something like looping, but not quite, and it isn't obvious in the spectral views. This won't be a quick or easy review, I'll have to devote some time to it.


Your observation seems to be very much like my first impression. On my previous HP-3e I was hearing loops all the time. When I first tried HP-307 at store I was overwhelmed by the difference. One of the things I was trying to figure out was if there's audible looping or not and I couldn't really tell what Im hearing.
The samples or whatnot were really convincing and keyboard years ahead of my former piano so I didn't think long. I refrain from doing any review on the piano because I can't compare it to any other model, not even previous Roland's HP-207.
Im eagerly awaiting your test results smile


Lucky! I listened to the file, and it sounds amazingly realistic compared to my piano..
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Now: RD-700NX
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#1376204 - 02/17/10 04:33 AM Re: The DP BSD Project! [Re: 7even]
theJourney Offline
3000 Post Club Member

Registered: 02/22/07
Posts: 3946
Loc: Banned
One interesting subjective test I would enjoy seeing here on the digital forum as a complement to the very interesting work dewster has been doing for us would be picking a few midi performances, for example from this site: http://www.piano-e-competition.com/ecompetition/midi_2009.asp#T and having them played on the major contenders' standard pre-sets being discussed here on the digital forum and then posted as lossless files for comparison listening by us all :

- Roland SuperNatural Piano
- Kawai Ultra Harmonic Resonance
- Yamaha Spectral Component Modeling
- Yamaha CLP Technology
- Roland VPIANO modeling
- Pianoteq modeling

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#1376208 - 02/17/10 04:40 AM Re: The DP BSD Project! [Re: madshi]
theJourney Offline
3000 Post Club Member

Registered: 02/22/07
Posts: 3946
Loc: Banned
Originally Posted By: madshi
IMHO your way to choosing which DP to buy is not very good. When deciding about a new DP purchase, there are 4 possible sources of information:

(1) Marketing material.
(2) Technical analysis (dewster).
(3) Reviews of other players (Dr Popper, Lawrence).
(4) Playing the damn thing yourself, obviously.

In the end (4) should always be the deciding factor. Deciding on (2) alone would be quite stupid. Deciding on (3) alone is IMHO not very clever, either. If you really want to make a clever choice, you should collect all information you can get, weigh them in some way ((4) should have the highest weight by far), and then decide based on that.


You could also add a (5) to your list which would be

(5) listening to comparison performances of real music on the instruments.

Admittedly the player experience is very important but for those who would use the digital piano for performance, the actual total sound produced or recorded would also be of prime importance.

Finally, for those of us using a digital as the most authentic (silent) way to prepare to polish and perform pieces on an acoustic piano it is most important that the instrument acts as closely as possible to an ideal acoustic but it is certainly an added benefit if the tone/sound of the piano is also pleasurable to listen to for all those hours.


Edited by theJourney (02/17/10 04:41 AM)

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#1376219 - 02/17/10 05:00 AM Re: The DP BSD Project! [Re: madshi]
Colleen_500 Offline
Full Member

Registered: 01/27/10
Posts: 34
Loc: Canada
Originally Posted By: madshi



IMHO your way to choosing which DP to buy is not very good. When deciding about a new DP purchase, there are 4 possible sources of information:

(1) Marketing material.
(2) Technical analysis (dewster).
(3) Reviews of other players (Dr Popper, Lawrence).
(4) Playing the damn thing yourself, obviously.

In the end (4) should always be the deciding factor. Deciding on (2) alone would be quite stupid. Deciding on (3) alone is IMHO not very clever, either. If you really want to make a clever choice, you should collect all information you can get, weigh them in some way ((4) should have the highest weight by far), and then decide based on that.



I believe it would be safe for you to understand, and if you read my posts thoroughly, that I intend to play the damn thing myself before I buy it. I am not committed to buy it if I don't find it suits my purpose.

So, either you aren't very clever, or you seem to think that I am not.

Based on your interpretation of my posts, I'd say the former, is by far, the more likely possibility, and the latter is a mistaken assumption on your part.

Considering the technical analysis is based on dubious quality MP3 recordings, that may or may not be accurate enough, and the possibility of error, either in the material uploaded (we really can't be certain it is from the actual instrument), I'd say, out of the four possible sources of information, #2 is not a source of information in which I would put a lot of credence.

As I said earlier; you can't measure the soul of an instrument with a computer, or, by analysing squiggly lines on a screen that may or may not be displaying accurate data, depending on the quality of the material being investigated. Believe what you want, and so shall I; after all, it is my money.

If given a choice of only two possibilities; #2 and #3, I'd say I'd trust the word of professionals a long way over an amateur doing a technical analysis.

And, in closing this matter between us, let me be clear on another thing; I do not favor Yamaha over another brand. I'm also very interested in instruments by Roland and Nord, and of course, just so you aren't confused again, I intend to play the damned things before I decide to buy. wink

Thank you for your concern.

Best regards,

Colleen

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#1376225 - 02/17/10 05:19 AM Re: The DP BSD Project! [Re: Colleen_500]
mucci Offline
1000 Post Club Member

Registered: 01/29/10
Posts: 1070
Loc: Munich, Germany
Originally Posted By: Colleen_500
I believe it would be safe for you to understand, and if you read my posts thoroughly, that I intend to play the damn thing myself before I buy it. I am not committed to buy it if I don't find it suits my purpose.

So, either you aren't very clever, or you seem to think that I am not.

Based on your interpretation of my posts, I'd say the former, is by far, the more likely possibility, and the latter is a mistaken assumption on your part.

Considering the technical analysis is based on dubious quality MP3 recordings, that may or may not be accurate enough, and the possibility of error, either in the material uploaded (we really can't be certain it is from the actual instrument), I'd say, out of the four possible sources of information, #2 is not a source of information in which I would put a lot of credence.

As I said earlier; you can't measure the soul of an instrument with a computer, or, by analysing squiggly lines on a screen that may or may not be displaying accurate data, depending on the quality of the material being investigated. Believe what you want, and so shall I; after all, it is my money.

If given a choice of only two possibilities; #2 and #3, I'd say I'd trust the word of professionals a long way over an amateur doing a technical analysis.

And, in closing this matter between us, let me be clear on another thing; I do not favor Yamaha over another brand. I'm also very interested in instruments by Roland and Nord, and of course, just so you aren't confused again, I intend to play the damned things before I decide to buy. wink


Excuse me, there is no room for interpretation of what you said. This is what you said:

Originally Posted By: Colleen_500

These tests are very interesting, Dewster, but not as compelling as Lawrence's and Dr.Popper's reviews of the CP-1.

So significant that I ordered a CP-1 this morning, as did one of my students.

I think Yamaha has a winner on it's hands with this instrument; I know I trust Lawrence's(Melodialworks) and Dr.Popper's real world, hands on experiences far more than putting any real confidence in a bunch of tests.

These guys are pros in every sense of the word.


I think this speaks for itself. If you now state that you've made up your mind and did not order one then okay, that's good, but it's not what you originally stated.

Originally Posted By: Colleen_500

So, either you aren't very clever, or you seem to think that I am not.

Based on your interpretation of my posts, I'd say the former, is by far, the more likely possibility, and the latter is a mistaken assumption on your part.


This is by no way acceptable and just plain offending... You should really think about the style of your discussion. As far as I am concerned, I'll no longer get bothered by your posts since I just put you on my ignore list.
_________________________
<~ don't test forever - play and enjoy! ~>

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#1376226 - 02/17/10 05:26 AM Re: The DP BSD Project! [Re: Colleen_500]
theJourney Offline
3000 Post Club Member

Registered: 02/22/07
Posts: 3946
Loc: Banned
Coleen, If you think mass produced consumer products like digital pianos (essentially computers with plastic keys) have "souls" and that their sound produced cannot be measured or viewed by other computers or people, I can see why you might get so excited about the retro reincarnation of the look, sounds and technology of Christmas Past that Yamaha is packaging up with the designed by committee CP series.

I am sure Yamaha marketing will be thrilled with all the low class ad hominem attacks by its blind supporters on public forums. With friends like that...


Edited by theJourney (02/17/10 05:29 AM)

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#1376232 - 02/17/10 05:47 AM Re: The DP BSD Project! [Re: Colleen_500]
madshi Offline
Full Member

Registered: 12/08/09
Posts: 62
Originally Posted By: Colleen_500
I believe it would be safe for you to understand, and if you read my posts thoroughly, that I intend to play the damn thing myself before I buy it. I am not committed to buy it if I don't find it suits my purpose.

You wrote "I ordered a CP-1 this morning". That's usually what you do *after* having decided which DP to buy.

Originally Posted By: Colleen_500
So, either you aren't very clever, or you seem to think that I am not.

Based on your interpretation of my posts, I'd say the former, is by far, the more likely possibility

Wow, thanks for the personal insult. I never said that you weren't clever. I just said that deciding on a DP without having played it yourself is not a clever thing to do. That's quite a different thing.

Originally Posted By: Colleen_500
Considering the technical analysis is based on dubious quality MP3 recordings, that may or may not be accurate enough, and the possibility of error, either in the material uploaded (we really can't be certain it is from the actual instrument), I'd say, out of the four possible sources of information, #2 is not a source of information in which I would put a lot of credence.

I find it amazing how many funny reasons some of you can find for ignoring pretty useful technical information. FWIW, I could find an equally high number of funny reasons why reviews of forum members should be mistrusted. But I won't, because there's a difference between funny reasons and reasonable reasons.

Originally Posted By: Colleen_500
by analysing squiggly lines on a screen

Do you think that describing a scientific technique with childish language somehow makes your point stronger?

Originally Posted By: Colleen_500
If given a choice of only two possibilities

Why limiting yourself to only two possibilities, if it's easy enough for anybody to make use of all four? That makes no sense at all.

Originally Posted By: Colleen_500
And, in closing this matter between us, let me be clear on another thing; I do not favor Yamaha over another brand.

And I never hinted or even thought you were.

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#1376249 - 02/17/10 07:14 AM Re: The DP BSD Project! [Re: madshi]
Colleen_500 Offline
Full Member

Registered: 01/27/10
Posts: 34
Loc: Canada
Originally Posted By: madshi


You wrote "I ordered a CP-1 this morning". That's usually what you do *after* having decided which DP to buy.



I also wrote to Steve, " I will post my impressions as soon as possible."

I also said I was under no obligation to buy.

It's pretty hard to give someone "impressions" of an instrument without playing it.


About the "clever" thing; you can try and justify your words all you want, but you tossed out the insult first. I was merely returning the favor.

Again, please read a person's post carefully, before you decide to insult or attack them.

Have you read this one carefully?

I hope so.

Regards,

Colleen

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#1376265 - 02/17/10 07:56 AM Re: The DP BSD Project! [Re: theJourney]
Colleen_500 Offline
Full Member

Registered: 01/27/10
Posts: 34
Loc: Canada
Originally Posted By: theJourney


I can see why you might get so excited about the retro reincarnation of the look, sounds and technology of Christmas Past that Yamaha is packaging up with the designed by committee CP series.

I am sure Yamaha marketing will be thrilled with all the low class ad hominem attacks by its blind supporters on public forums. With friends like that...


Thank you. The anticipation of playing a piano with a retro look, always excites those of us with an imagination and an appreciation of a well designed instrument, regardless if it was allegedly conceived by a committee or what company makes it.

It does remind me of Christmas past and the thrill of opening a nicely wrapped present. What a lovely analogy.

You are far more clever than Madshi. wink

I'm sure all the keyboard manufactures will be thrilled at the appearance of inaccurate data about their instruments on a public forum by an amateur tester.

Regards,

Colleen

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#1376290 - 02/17/10 08:39 AM Re: The DP BSD Project! [Re: mucci]
dewster Offline
4000 Post Club Member

Registered: 12/07/09
Posts: 4362
Loc: Northern NJ
Originally Posted By: kawaian
@dewster, thanks, here's the original file directly recorded with CA-63:

http://www.mediafire.com/file/rhuwxhnz32i/KAWAI_CA_63_ORG.MP3

But I will redo this anyway, once I have the firmware update, and I'll try to also get the sympathetic resonance included somehow since this is a very important part of the beautiful sound of the new CA models.

Thanks! That one sounds better near the noise floor. I'll archive it instead of the other and wait on your improved version.
_________________________
The DPBSD Project!
THE RD-700NX Thread!
DPs Exposed! (nekid pichures!)

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#1376338 - 02/17/10 09:44 AM Re: The DP BSD Project! [Re: Colleen_500]
jmmec Offline
Full Member

Registered: 02/02/10
Posts: 86
Loc: New Mexico (yes, USA!)
Originally Posted By: Colleen_500
Pardon me? I'm not stopping you geeks from comparing test results.

...it shouldn't bother you if I question the integrity of a test that can have errors, bias, or both.

Considering the technical analysis is based on dubious quality MP3 recordings, that may or may not be accurate enough, and the possibility of error, either in the material uploaded (we really can't be certain it is from the actual instrument)...

...I'd say I'd trust the word of professionals a long way over an amateur doing a technical analysis.

I'm sure all the keyboard manufactures will be thrilled at the appearance of inaccurate data about their instruments on a public forum by an amateur tester.


"Whatever hysteria exists is inflamed by mystery, suspicion and secrecy. Hard and exact facts will cool it." Elia Kazan
_________________________
Roland HP-307
Roland Quad-Capture

https://vimeo.com/58278342

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