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Maybe I'm going crazy, but...

My understanding of the sustain pedal is that when it is depressed 100% and you strike a chord or note, it should not matter if you keep the key down, or if you let go; in either case the damper stays off the string, and the note should keep sounding.

That doesn't seem to happen with my Garritan CFX. If I play a chord with the sustain down, and let go of the keys with my fingers while keeping the sustain pedal down, there's a audible change in the sound, like a note getting dropped or harmonics/resonances getting damped out.

Has anyone else noticed this? I'm not sure if it's just psychological, or something going on with Aria Player or the M1 Mac emulation. I'm going to test it out a bit more today and try to get some audio recording/waveforms.

I don't notice anything like this with the built-in sounds of the DP.


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I have noticed something distantly similar in the Aria Player when I use the default polyphony (32 from memory). Have you tried increasing it from the drop down to max and see if that helps?

Last edited by CyberGene; 08/04/21 10:45 AM.

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I must be blind....I don't see a polyphony selector at all (in Aria player, I know where it is in the native CFX app)???


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Are you refering to the Sforzando app?

Near the top right there are some dials and a block labled "poly".

https://s3.amazonaws.com/sforzando/sforzando_guide.pdf

Interesting side note. Not sure if "higher fidelity" just means less crackling:

"Buffer Size: The buffer size setting will determine the delay between pressing a key on your MIDI keyboard
and hearing the sound (a/k/a ‘latency’). The default buffer size of 512 samples typically works well, but smaller buffer sizes will give a faster response (lower latency) and higher buffer sizes will give better audio performance (more polyphony and higher fidelity). Most modern computers and audio interfaces can handle a buffer size of 512 samples without a significant reduction in polyphony. If the sound is breaking up or crackling when a note sounds, then first check that the audio connections and wiring are good. Then, try a larger audio buffer size setting. Please note that there is typically a trade-off between higher buffer sizes (polyphony and sound fidelity) and lower buffer sizes (faster response or lower latency)"

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Not Sforzando, just the ARIA Player app:
[Linked Image]


I can't find a setting for polyphony anywhere in it.

Also, just tried a quick recording, and the waveform seems to suggest that the effect is real (it's not just in my head):
[Linked Image]

I played 4 chords with damper down. The first is basic arpeggio, with all notes held down until decayed. The second is the same arpeggio but with the notes released shortly after striking. The third is a chord with all notes held down, and the fourth is the same chord with the notes released shortly after striking. In each case, there's some loss in information/volume when the notes are released even with the damper down.


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Can you select (or right click) the 4th range as indicated here and have a drop-down menu pop up?

[Linked Image]

Last edited by newer player; 08/04/21 02:27 PM.
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Ah, thanks newer player! I did not even look into those blocks.

Unfortunately, it looks like the default is already set to 128:

[Linked Image]

I guess the next step is to try this with the native Garritan CFX player.


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I believe I had mine on 256 and it, to my ears, does similar things. However I hardly notice it when playing. smile Glad you caught this bug!

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Polyphone in case of ARIA engine (same for sforzando/Garritan native player) is not note polyphony, but group polyphony, so 128 could be much, much more, depending how the library is scripted.

I'll check if I have the same issue, haven't noticed anything wrong yet (except too much noise build-up).


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So, a few interesting discoveries:

1. The effect doesn't seem to happen in the native CFX player, only the standalone ARIA Player.

2. The effect isn't related to polyphony or half/re-pedaling settings. The effect also doesn't happen in CFX Player even with 16 polyphony.

3. It may be differences in various settings (the resonance knobs, volume settings, velocity curve), but I feel the CFX player is fuller and more resonant because of this (key releases with the damper pedal down doesn't drop tones).

4. I find CFX Player to be every bit as performant as ARIA Player. I set CFX to 1GB, 16kB, 64 buffer, 96khz, and it works better than it did in ARIA. No pops, hisses, cracks, or other audio artifacts (and no damper weirdness).

5. 96kHz/48kHz in CFX doesn't impact the volume the way it does in ARIA (those are louder than 44kHz in ARIA).

So for now at least, my path is clear--I'm switching to the native CFX Player, better sound, no compromise smile


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^ That's an interesting observation! I will also test with the standalone player, although my previous experimentation clearly showed the Aria Player performs better but it might have been a macOS issue and there have been a few OS-updates since.

Last edited by CyberGene; 08/05/21 10:35 AM.

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