Please forgive me, I'm still a beginner when it comes to synthesizers.  I have a question about voices.  I'm hoping someone can educate me.

When you press a key, then a voice is played, right?  If you play a triad, then 3 voices are played, and so forth, right?

If the sound has a release time, then voices sustain pass the release of the key, so you need more voices than the keys depressed in order to hear the new voices, or else there is "voice stealing", right?

One voice could be two (or more) oscillators, combined, right?

I have heard of combining two (or more) voices into one key press.  But the combined voices use the same oscillator and filter settings, right?  Or is there a way to have, say, a third or fourth oscillator, with different settings, all on one voice?

Sorry if these sound like beginner questions, but they are from a beginner!

Quote from: gus on April 02, 2025, 10:18:25 AM

It's normal for the IEC receptacle to move around a bit, if that is what is rattling. Otherwise, please reach out to support@sequential.com and we can help you out/provide guided instructions for opening the synth if needed.

Midi on/off reversing is on our bug list. We haven't been able to reproduce the issue consistently in house, so sending any details (post-troubleshooting) would be helpful. As always, make sure you're not in a MIDI feedback loop of sorts. If you're able to try a different DAW or computer, that's always helpful too.

Enjoy your new synth!

Thanks Gus,

I am in touch with support.
Would it invalidate my guarantee if I open it to check for the rattle? I'm sure it's something simple. It completely stops if I press down on the top right corner (near the aftertouch button), not at all if I hold the IEC, but half stops if I press down on the IEC lead.

It's not just the notes reversing but all the buttons and knobs go weird: if I press a button nothing happens, then I press a different one and now the first button changes etc, it's as if everything sent via usb gets delayed by one event. I'm testing on midi Din now to see if it happens there.

Thanks!

If support guides you to open up the unit, it will not void your warranty.

That's interesting that all MIDI gets reversed - that does make me wonder if there's something going on in Logic. If you have Snoize MIDI Monitor, you can 'spy' on the output of Logic to the synth, or at the output of the synth. That way you can see if anything funky gets sent to the synth when the issue occurs. If you haven't already done a search for Logic on this forum, there is a bunch of good info!

When you play patch number 111 with headphones and you have the headphones at around 35 to 50 percent - I’m hearing a sound that feels like a white noise distortion or something ….try putting your cutoff at 2 or 3 - and it feels way more pronounced. I have had a replacement unit and it does the same thing. Anyone else?

I'm guessing this is for the P10 and not the P12 (this subforum). What you're hearing is likely the noise floor - this is expected given the density of analog components in the voice signal path. To get a sense, you can go on that same patch, turn both oscillators down, open the filter, turn up the headphones, then play notes - you'll hear some noise as each analog VCA is opened up. If you change the filter to Type 3 in the same setup, you'll hear even more noise. The headphone out is also pulled from the main output path, so you'll hear some more noise there given the additional boosting circuitry.

We generally recommend recording from the line out with the master volume at max to get the best signal to noise results. In practice, the noise floor on the P5/P10 is very low, especially at full volume or in the context of a song.

Enjoy your P10!

It seems to be okay (so far today) with just midi, not okay using USB. I have Local set to off. Are there any other settings I may have missed on the Prophet or Logic Pro? (I really hope it's something I'm doing wrong).

It's normal for the IEC receptacle to move around a bit, if that is what is rattling. Otherwise, please reach out to support@sequential.com and we can help you out/provide guided instructions for opening the synth if needed.

Midi on/off reversing is on our bug list. We haven't been able to reproduce the issue consistently in house, so sending any details (post-troubleshooting) would be helpful. As always, make sure you're not in a MIDI feedback loop of sorts. If you're able to try a different DAW or computer, that's always helpful too.

Enjoy your new synth!

Thanks Gus,

I am in touch with support.
Would it invalidate my guarantee if I open it to check for the rattle? I'm sure it's something simple. It completely stops if I press down on the top right corner (near the aftertouch button), not at all if I hold the IEC, but half stops if I press down on the IEC lead.

It's not just the notes reversing but all the buttons and knobs go weird: if I press a button nothing happens, then I press a different one and now the first button changes etc, it's as if everything sent via usb gets delayed by one event. I'm testing on midi Din now to see if it happens there.

Thanks!