And this is why I cannot use Synthmaster apps (Stuck keys problem SOLVED!)

Samu

All I know regarding GarageBand is that it internally runs at 44.1k (don't know the exact buffer size but I suspect it's 128 or 256 but could be a dynamic buffer size until automatic 'track freeze' is triggered) and uses Core Audio to up-sample to target sample-rate (48k on 'locked' devices). Export is always at 44.1k.

As for AUM and other hosts, the buffer-size the plug-ins use is controlled by the buffer-size set in the host.
Some hosts can optionally force plug-in re-sampling (ZenBeats has an option for this).

I have no clue whether SM2 uses a fixed internal sample-rate and up/down-samples to the host-sample-rate?
This could potentially explain the buffer-size related issues especially of audio and UI is handled in the same thread.

There's quite a bunch of plug-ins that miss-behave when buffer-size is >512 (some even totally crash is buffer-size is set to 2048). In those cases contacting the developer and make them aware of the issues is the only thing one can do.
Same goes for sample-rate related timing issues which do affect some apps...

Hopefully this issue can be sorted out as even on faster devices larger buffer sizes can sometimes be quite handy.
(I've still not managed to get stuck keys with SM2 on the 11" M1 iPadPro regardless of buffer-size).

Cheers!

NeuM

@Samu said:
All I know regarding GarageBand is that it internally runs at 44.1k (don't know the exact buffer size but I suspect it's 128 or 256 but could be a dynamic buffer size until automatic 'track freeze' is triggered) and uses Core Audio to up-sample to target sample-rate (48k on 'locked' devices). Export is always at 44.1k.

As for AUM and other hosts, the buffer-size the plug-ins use is controlled by the buffer-size set in the host.
Some hosts can optionally force plug-in re-sampling (ZenBeats has an option for this).

I have no clue whether SM2 uses a fixed internal sample-rate and up/down-samples to the host-sample-rate?
This could potentially explain the buffer-size related issues especially of audio and UI is handled in the same thread.

There's quite a bunch of plug-ins that miss-behave when buffer-size is >512 (some even totally crash is buffer-size is set to 2048). In those cases contacting the developer and make them aware of the issues is the only thing one can do.
Same goes for sample-rate related timing issues which do affect some apps...

Hopefully this issue can be sorted out as even on faster devices larger buffer sizes can sometimes be quite handy.
(I've still not managed to get stuck keys with SM2 on the 11" M1 iPadPro regardless of buffer-size).

Cheers!

Appreciate the additional insight.

RajahP

@5k3105 said:

@wim said:
I’m glad I don’t have SM2. Finding steps to reproduce this would become an obsession.

Sm2 is the bomb. Came here to tell you directly

It sure is.

lbiyikoglu

@_ki said:
@NeuM Thanks for posting the video 👍🏼

But i‘m not one of the SynthMaster developers, i‘m just an ordinary AB forums user with experience in debugging problems.

@lbiyikoglu is one of the devs (and according to AB he even visited/commented in the last days). Hopefully mentioning him will lure him to this thread.

Up to now the „sticking keys on internal keyboard“ problem is quite mysterious. But no-one with the same old device (2015 iPad Pro 12.9) showed up to check if‘s its a general problem on that device. We already checked

• it’s not the IOS version
• It‘s not a problem due to connected magic keyboard, magnetic cover, external soundcard
• Happens in Standalone and AUv3
• No special accessability settings
• Happens at buffersize 1024 and 512
• Samplerate and preferred samplerate setting is unknown (Not shown in Garageband)

And Samu found a work-around: Buffersize of 256/128 does not produce stuck keys

Yes I'm following this thread, we will check this issue further and will release a fix for it.

NeuM

@lbiyikoglu said:

@_ki said:
@NeuM Thanks for posting the video 👍🏼

But i‘m not one of the SynthMaster developers, i‘m just an ordinary AB forums user with experience in debugging problems.

@lbiyikoglu is one of the devs (and according to AB he even visited/commented in the last days). Hopefully mentioning him will lure him to this thread.

Up to now the „sticking keys on internal keyboard“ problem is quite mysterious. But no-one with the same old device (2015 iPad Pro 12.9) showed up to check if‘s its a general problem on that device. We already checked

• it’s not the IOS version
• It‘s not a problem due to connected magic keyboard, magnetic cover, external soundcard
• Happens in Standalone and AUv3
• No special accessability settings
• Happens at buffersize 1024 and 512
• Samplerate and preferred samplerate setting is unknown (Not shown in Garageband)

And Samu found a work-around: Buffersize of 256/128 does not produce stuck keys

Yes I'm following this thread, we will check this issue further and will release a fix for it.

Thanks. I'm just very happy Samu was able to narrow down the problem to something I could use to fix it today.

HolyMoses

@NeuM said:

@lbiyikoglu said:

@_ki said:
@NeuM Thanks for posting the video 👍🏼

But i‘m not one of the SynthMaster developers, i‘m just an ordinary AB forums user with experience in debugging problems.

@lbiyikoglu is one of the devs (and according to AB he even visited/commented in the last days). Hopefully mentioning him will lure him to this thread.

Up to now the „sticking keys on internal keyboard“ problem is quite mysterious. But no-one with the same old device (2015 iPad Pro 12.9) showed up to check if‘s its a general problem on that device. We already checked

• it’s not the IOS version
• It‘s not a problem due to connected magic keyboard, magnetic cover, external soundcard
• Happens in Standalone and AUv3
• No special accessability settings
• Happens at buffersize 1024 and 512
• Samplerate and preferred samplerate setting is unknown (Not shown in Garageband)

And Samu found a work-around: Buffersize of 256/128 does not produce stuck keys

Yes I'm following this thread, we will check this issue further and will release a fix for it.

Thanks. I'm just very happy Samu was able to narrow down the problem to something I could use to fix it today.

@Samu for PRESIDENT!

AudioGus

The system works!

jwmmakerofmusic

@HolyMoses said:

@NeuM said:

@lbiyikoglu said:

@_ki said:
@NeuM Thanks for posting the video 👍🏼

But i‘m not one of the SynthMaster developers, i‘m just an ordinary AB forums user with experience in debugging problems.

@lbiyikoglu is one of the devs (and according to AB he even visited/commented in the last days). Hopefully mentioning him will lure him to this thread.

Up to now the „sticking keys on internal keyboard“ problem is quite mysterious. But no-one with the same old device (2015 iPad Pro 12.9) showed up to check if‘s its a general problem on that device. We already checked

• it’s not the IOS version
• It‘s not a problem due to connected magic keyboard, magnetic cover, external soundcard
• Happens in Standalone and AUv3
• No special accessability settings
• Happens at buffersize 1024 and 512
• Samplerate and preferred samplerate setting is unknown (Not shown in Garageband)

And Samu found a work-around: Buffersize of 256/128 does not produce stuck keys

Yes I'm following this thread, we will check this issue further and will release a fix for it.

Thanks. I'm just very happy Samu was able to narrow down the problem to something I could use to fix it today.

@Samu for PRESIDENT!

+1 👍

drez

@NeuM Do you think you could be a good audiob.us citizen and update your very first post with your findings? This would help a future user out.

Samu

@HolyMoses said:

@Samu for PRESIDENT!

Thanks, but honestly I do prefer to 'stay in the background'

The suggestion to try alternate buffer-sizes was a real long-shot but considering that many apps fail or behave weirdly when using 'larger' (>256) or 'smaller' (<128) buffer-sizes I thought it was worth a shot.

Without @NeuM 's video with audible crackles I would likely not have suggested trying to use alternate buffer-sizes as the crackle was never mentioned as one of the issues combined with the stuck keys.

Thankfully the issues is resolved for now and everyone can enjoy SM2!

Cheers!

wim

@Samu said:

@HolyMoses said:

@Samu for PRESIDENT!

Thanks, but honestly I do prefer to 'stay in the background'

Ahhh… going for Illuminati head then. Wise choice.

richardyot

@5k3105 said:
I bought literally all presets and i dont have this whispers in the wind.

It's part of my free preset pack - you can download some of them from within SM2 in the online section, but there is a more extensive version available here:

https://richardyotmusic.gumroad.com/l/synthechoes

NeuM

@richardyot said:

@5k3105 said:
I bought literally all presets and i dont have this whispers in the wind.

It's part of my free preset pack - you can download some of them from within SM2 in the online section, but there is a more extensive version available here:

https://richardyotmusic.gumroad.com/l/synthechoes

Yes, thanks for making those free presets Richard.

richardyot

@NeuM said:

@richardyot said:

@5k3105 said:
I bought literally all presets and i dont have this whispers in the wind.

It's part of my free preset pack - you can download some of them from within SM2 in the online section, but there is a more extensive version available here:

https://richardyotmusic.gumroad.com/l/synthechoes

Yes, thanks for making those free presets Richard.

My pleasure, I should make some more sometime.

enkaytee

@Eleanor0961 said:
https://www.youtube.com/watch?v=NlODm9Scnfc&ab_channel=TheGeekPage

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