Loopy Pro: Create music, your way.

What is Loopy Pro?Loopy Pro is a powerful, flexible, and intuitive live looper, sampler, clip launcher and DAW for iPhone and iPad. At its core, it allows you to record and layer sounds in real-time to create complex musical arrangements. But it doesn’t stop there—Loopy Pro offers advanced tools to customize your workflow, build dynamic performance setups, and create a seamless connection between instruments, effects, and external gear.

Use it for live looping, sequencing, arranging, mixing, and much more. Whether you're a live performer, a producer, or just experimenting with sound, Loopy Pro helps you take control of your creative process.

Download on the App Store

Loopy Pro is your all-in-one musical toolkit. Try it for free today.

Zeeon - Filter Envelope not resetting with key press

Hi, I’m still getting to know Zeeon after buying it a few days ago. I just came across the patch SHFat in the factory bank, and I noticed that the oscilloscope remained static (i.e. didn’t go back to horizontal line) even after all key presses were lifted. I then turned down the filter cutoff and prolonged the attack of the filter envelope. What I found is that the filter envelope wasn’t resetting between key presses. For example, I set a 6-second attack and hold down a C4 for 3 seconds. When I lift that key, wait for a few seconds then press a D4, the filter cutoff starts from where the last key press ended and I only get 3 seconds of attack before the decay. I’ve been able to recreate this behavior once while making a patch of my own but without knowing how I did it. Would appreciate any explanation for this behavior. Thanks.

Comments

  • Okay, I just figured out that turning up the release time on the amp envelope fixes this (it was at zero before). Not sure why that would be the case though.

  • Zeeon is so amazing, but kinda feels unfinished. I really wish beepstreet would give it some more love! It’s so close to being perfect for me.

  • @shoegazedivision said:
    Zeeon is so amazing, but kinda feels unfinished. I really wish beepstreet would give it some more love! It’s so close to being perfect for me.

    Unfinished in what way?

  • edited April 1

    @thecalimaki said:
    Okay, I just figured out that turning up the release time on the amp envelope fixes this (it was at zero before). Not sure why that would be the case though.

    So I tinkered with it a bit more, and actually it happens whenever the filter envelope release is longer than the amp envelope release. Is this expected behavior?

  • @espiegel123 said:

    @shoegazedivision said:
    Zeeon is so amazing, but kinda feels unfinished. I really wish beepstreet would give it some more love! It’s so close to being perfect for me.

    Unfinished in what way?

    For me, it’s the difference between Zeeon and Sunrizer. Sunrizer feels done, feels like it’s got about everything it could. Arpeggiator, pattern sequencer, every mode and effect it could reasonably have within the vision for the project, even performance features and thoughtful midi stuff. Drambo is this way too. Zeeon is an amazing vision, a project I love, but it doesn’t feel done in the same way. It could be so much more, and it would incredible if it was. I long for something I could use live like a Nord, and it’s so close. Sunrizer is so close too. I want the sound of Zeeon and the full-featured thoughtfulness and performance readiness of Sunrizer I guess, and they’re both so close but not quite. Something about beep street apps is so special, they make me want to use them, play them, in a way that other apps don’t. But I can’t quite use them the way I want to, which is frustrating . But it’s only frustrating because of how good they are!

  • I guess Zeeon feels finished to me and among the best-sounding virtual analogs on iOS.

  • @thecalimaki said:

    @thecalimaki said:
    Okay, I just figured out that turning up the release time on the amp envelope fixes this (it was at zero before). Not sure why that would be the case though.

    So I tinkered with it a bit more, and actually it happens whenever the filter envelope release is longer than the amp envelope release. Is this expected behavior?

    I can confirm what you said on my end as well. Seems like an Amp Release bug that happens on the Mono and Unison modes. In Poly mode the synth properly retriggers all the envelopes and the LFO2 behaviour on the mod matrix for each note.

    Correct me if I am wrong but Zeeon does not have a Legato/Portamento option, does it?

  • edited April 1

    @SirKen said:

    @thecalimaki said:

    @thecalimaki said:
    Okay, I just figured out that turning up the release time on the amp envelope fixes this (it was at zero before). Not sure why that would be the case though.

    So I tinkered with it a bit more, and actually it happens whenever the filter envelope release is longer than the amp envelope release. Is this expected behavior?

    I can confirm what you said on my end as well. Seems like an Amp Release bug that happens on the Mono and Unison modes. In Poly mode the synth properly retriggers all the envelopes and the LFO2 behaviour on the mod matrix for each note.

    Correct me if I am wrong but Zeeon does not have a Legato/Portamento option, does it?

    I checked and there’s a “legato trigger” option in the Voice settings to specify whether or not to reset envelopes with every key press, but that didn’t fix the problem. Also, I don’t even think it’s a legato problem, as i could press one key, release it before the attack phase ends, wait for 10 seconds, then press another key, and the filter envelope picks up right where it left off. I was also able to recreate this behavior in poly mode. I can’t think of any other VA synth that does this, which makes me pretty sure it’s a bug.

    Granted though, I can think of some pretty cool applications for this. Must have gone under the radar since I can’t really think of too many use cases for having your filter release longer than your amp release. Also, the amount of difference between amp release and filter release needed to trigger this effect seems to vary based on some factor/s I can’t figure out yet.

  • edited April 1

    Lol it’s like some sort of legato where the time in between key presses doesn’t matter. Let’s call it step legato.

  • @thecalimaki said:

    @SirKen said:

    @thecalimaki said:

    @thecalimaki said:
    Okay, I just figured out that turning up the release time on the amp envelope fixes this (it was at zero before). Not sure why that would be the case though.

    So I tinkered with it a bit more, and actually it happens whenever the filter envelope release is longer than the amp envelope release. Is this expected behavior?

    I can confirm what you said on my end as well. Seems like an Amp Release bug that happens on the Mono and Unison modes. In Poly mode the synth properly retriggers all the envelopes and the LFO2 behaviour on the mod matrix for each note.

    Correct me if I am wrong but Zeeon does not have a Legato/Portamento option, does it?

    I checked and there’s a “legato trigger” option in the Voice settings to specify whether or not to reset envelopes with every key press, but that didn’t fix the problem. Also, I don’t even think it’s a legato problem, as i could press one key, release it before the attack phase ends, wait for 10 seconds, then press another key, and the filter envelope picks up right where it left off. I was also able to recreate this behavior in poly mode. I can’t think of any other VA synth that does this, which makes me pretty sure it’s a bug.

    Yeah, I didn't expect the legato to fix it as legato wouldn't and shouldn't get affected with Amp Release. I was just curious if flipping it back and forth could somehow address the bug or not. Habits of debugging tests from work lol

    Granted though, I can think of some pretty cool applications for this. Must have gone under the radar since I can’t really think of too many use cases for having your filter release longer than your amp release. Also, the amount of difference between amp release and filter release needed to trigger this effect seems to vary based on some factor/s I can’t figure out yet.

    Ignoring the potential applications within a mod matrix, having your amp release shorter than filter release would cause the sound to die off faster than the filter can react to the release modulation. This is definitely a bug and good catch on your end.

    Have you submitted a support ticket?

  • edited April 1

    @SirKen said:

    @thecalimaki said:

    @SirKen said:

    @thecalimaki said:

    @thecalimaki said:
    Okay, I just figured out that turning up the release time on the amp envelope fixes this (it was at zero before). Not sure why that would be the case though.

    So I tinkered with it a bit more, and actually it happens whenever the filter envelope release is longer than the amp envelope release. Is this expected behavior?

    I can confirm what you said on my end as well. Seems like an Amp Release bug that happens on the Mono and Unison modes. In Poly mode the synth properly retriggers all the envelopes and the LFO2 behaviour on the mod matrix for each note.

    Correct me if I am wrong but Zeeon does not have a Legato/Portamento option, does it?

    I checked and there’s a “legato trigger” option in the Voice settings to specify whether or not to reset envelopes with every key press, but that didn’t fix the problem. Also, I don’t even think it’s a legato problem, as i could press one key, release it before the attack phase ends, wait for 10 seconds, then press another key, and the filter envelope picks up right where it left off. I was also able to recreate this behavior in poly mode. I can’t think of any other VA synth that does this, which makes me pretty sure it’s a bug.

    Yeah, I didn't expect the legato to fix it as legato wouldn't and shouldn't get affected with Amp Release. I was just curious if flipping it back and forth could somehow address the bug or not. Habits of debugging tests from work lol

    Granted though, I can think of some pretty cool applications for this. Must have gone under the radar since I can’t really think of too many use cases for having your filter release longer than your amp release. Also, the amount of difference between amp release and filter release needed to trigger this effect seems to vary based on some factor/s I can’t figure out yet.

    Ignoring the potential applications within a mod matrix, having your amp release shorter than filter release would cause the sound to die off faster than the filter can react to the release modulation. This is definitely a bug and good catch on your end.

    Have you submitted a support ticket?

    Just sent an email to [email protected]

    Not sure if that’s the quickest way to reach the dev though. Are they active in this forum or in the Beepstreet forum?

    (Also I am only now finding out that the Beepstreet forum is very active)

  • Zeeon unfinished? This is an April fools joke, isn’t it, haha! 😂

  • edited April 1

    @SirKen said:

    @thecalimaki said:

    @SirKen said:

    @thecalimaki said:

    @thecalimaki said:
    Okay, I just figured out that turning up the release time on the amp envelope fixes this (it was at zero before). Not sure why that would be the case though.

    So I tinkered with it a bit more, and actually it happens whenever the filter envelope release is longer than the amp envelope release. Is this expected behavior?

    I can confirm what you said on my end as well. Seems like an Amp Release bug that happens on the Mono and Unison modes. In Poly mode the synth properly retriggers all the envelopes and the LFO2 behaviour on the mod matrix for each note.

    Correct me if I am wrong but Zeeon does not have a Legato/Portamento option, does it?

    I checked and there’s a “legato trigger” option in the Voice settings to specify whether or not to reset envelopes with every key press, but that didn’t fix the problem. Also, I don’t even think it’s a legato problem, as i could press one key, release it before the attack phase ends, wait for 10 seconds, then press another key, and the filter envelope picks up right where it left off. I was also able to recreate this behavior in poly mode. I can’t think of any other VA synth that does this, which makes me pretty sure it’s a bug.

    Yeah, I didn't expect the legato to fix it as legato wouldn't and shouldn't get affected with Amp Release. I was just curious if flipping it back and forth could somehow address the bug or not. Habits of debugging tests from work lol

    Granted though, I can think of some pretty cool applications for this. Must have gone under the radar since I can’t really think of too many use cases for having your filter release longer than your amp release. Also, the amount of difference between amp release and filter release needed to trigger this effect seems to vary based on some factor/s I can’t figure out yet.

    Ignoring the potential applications within a mod matrix, having your amp release shorter than filter release would cause the sound to die off faster than the filter can react to the release modulation. This is definitely a bug and good catch on your end.

    Have you submitted a support ticket?

    They’ll be working on it! (hopefully lol)

  • edited April 1

    Regarding Zeeon feeling unfinished, I'm not joking! I love it, and it's certainly useful as it is, but it feels frozen in time. I'm on an M1 iPad and the Polyphony is needlessly limited. And if you spend any time with Sunrizer, you'll come across tons of things that would be amazing to have in Zeeon. Arpeggiator, morph, better/more midi options, more synth tools in the menu, a fully skeuomorphic UI (as opposed to half and half). Even Zeeon's App Store description ends with "More presets and exciting features in upcoming updates", so BeepStreet clearly doesn't feel finished with this thing either, but that was 10 months ago.

    I say all this not to complain at all, but to hopefully give a signal to BeepStreet that we love this synth and it's worth further investment! Heck, I'd pay for it all over again if it was improved significantly.

  • @shoegazedivision said:
    Regarding Zeeon feeling unfinished, I'm not joking! I love it, and it's certainly useful as it is, but it feels frozen in time. I'm on an M1 iPad and the Polyphony is needlessly limited. And if you spend any time with Sunrizer, you'll come across tons of things that would be amazing to have in Zeeon. Arpeggiator, morph, better/more midi options, more synth tools in the menu, a fully skeuomorphic UI (as opposed to half and half). Even Zeeon's App Store description ends with "More presets and exciting features in upcoming updates", so BeepStreet clearly doesn't feel finished with this thing either, but that was 10 months ago.

    I say all this not to complain at all, but to hopefully give a signal to BeepStreet that we love this synth and it's worth further investment! Heck, I'd pay for it all over again if it was improved significantly.

    Maybe I’m in the minority, idk but I kinda hope they don’t add any huge features. For me Zeeon excels in its simplicity. Just like Krill synth does. Or a Juno. Imo, not every synth needs to have every feature and they already have Sunrizer for that. I love that I can open Zeeon and quickly make a beautiful sounding pad without worrying about over complicating things. I can’t speak for Beepstreet of course, but it seems like that’s what they were going for also. A simple, great sounding synth with just enough to parameters to still add some variety.

  • wimwim
    edited April 1

    Humm yeh ... I don't think I'd want Zeeon to morph any further into Sunrizer territory. I like them each for what their own uniqueness. I don't think one blending into the other would appeal to me. Honestly, the thought never crossed my mind as I see them as two very different animals.

  • But wouldn't more polyphony, even a polyphonic unison be great? New iPads can handle it.

  • wimwim
    edited April 1

    Of course more polyphony would be useful. It's not something I generally think about though. Zeeon is fine as-is for me. I can see how a heavier user would want that though.

Sign In or Register to comment.