NS3 polyphony

[baekgaard]

And to be clear - my test shows that the polyphony is 30, not 28.

Just to point out the obvious: Completely agree -- it is consistent with my testing of the NS3 88HA for the Panel A.

When testing Panel B alone, I got to 28 yesterday again when (re)testing, but as you already mentioned, since you didn't test Panel B alone, we don't know if it is reproducible, a mistake on my side, or a peculiar thing with my device

I also agree/reproduced that testing both Panel A and B together effectively halves the number of notes that can be made to sound, hence ending up at 15, as you found.

[lordy]

We may not have the same Ns3... i should contact a lawyer in this forum...

[lordy]

And i should add, i wouldn’t accuse nord of lying ( i have the right to tell what i want ) if it was a cheap synth.
But a 4000 euros instruments, it is not the same think.
If you buy cigarettes 5 dollars, you want to find the good number of cigarettes, not 17 or 18.
I m not here to create controversy, just tell what happened in the ns3.
And i don’t to make a video of that faulse polyphony. Wouldn't be cool for nord, a brand i like.

[maxpiano]

( i have the right to tell what i want )

You have that right but as long as you stay within the rules, of the law and of this forum http://www.norduserforum.com/forum_rules.php, where the latter explicitly state that "slanderous" postings are not permitted; you may say that there seem to be a bug or non compliance to specs, that the specs are incorrect; the law says that you can even return your instrument and get full refund because of that (specs not correspongong to actual features), but accusing Nord to deliberately "lie" is not acceptable.

Regardless, other forumers have spent their time to check your statements in a scientific way and sharing results, which btw confirm there is still a problem (30 vs 34 max polyphony detected); I think you should just be thankful to them and then continue to (rightfully) address this as a bug to be highlighted to Nord as such, not a "lie"... hope you can agree on this, can you?

[DanielD71]

This is not about the NS3, but about the NS2. Today I finally got round to do what I had in mind.
The tests show that ther NS2 has 18 voices polyphony and has lowest note priority, i.e. the lowest frequency note voice will not be stolen to play a new note).

1 slot synth

18Voices.jpg (61.58 KiB) Viewed 2059 times

With two slots on, the polyphony is 9:

9Voices.jpg (43.01 KiB) Viewed 2059 times

For both plots the horizontal axis is time and the vertical is frequency, so a horizontal line represents a note sounding for that given length of time, all with the sustain pedal pressed.
All those lines ending at the same time show when the sustain pedal was released.

[analogika]

Lowest-note priority or loudest-note priority?

[analogika]

Also, 18/9 is the official polyphony, as per documentation.

[Mr_-G-]

Lowest I believe. I tried starting from high pitch then down and up etc. and the lowest frequency is preserved.
Would be interesting to see what the NS3 does.

[MrTobbe]

Lowest I believe. I tried starting from high pitch then down and up etc. and the lowest frequency is preserved.
Would be interesting to see what the NS3 does.

Interesting test - thank you for the spectrograms!

Actually, your finding seem consistent with what I saw - the Stage 3 also seem to have a similiar note priority scheme. I only played a scale upwards. Then the lowest note remained for the whole test, but note stealing started to happen with the next lowest note, so it's probably last note priority, but the first held note, or it might be the lowest note, always has a reserved voice.

Then of course it could also be that louder notes have higher priority and so on, but those kinds of more advanced priority algorithms are much harder to figure out, with a simple test like this.

Btw, is this test also made with Audacity? The spectrogram is so much easier to read, than the FFT I supplied.

[analogika]

Hi yes, Audacity. In the track window, there is a pull down menu that says "Audio Track" where you can choose 'spectrogram' instead of "waveform". You might also need to set the preferences options (Ctrl+P). I used logarithmic scale, gain 10 dB, range 60 dB, Algorithm: frequencies, window size 32768 , Hanning window, and Zero padding factor:1.
It is quite slow to display, though, but it can be quite informative.

I do not think it is loudness priority. The synth was not velolcity sensitive anyway. The fact that the lowest note 'line' appears thicker is because of the logarithmic scale of the y axis.