[rrrural]

I have to come back here cap-in-hand.

I took a testing deep dive and realised, through a lot of trial and error, that I had somehow added Superior Drummer to an additional 12 channels in my Reaper project. I have no recollection of adding SD to those channels so I just wasn’t looking for it.

As soon as I removed SD from the FX on all those channels, my problem was solved.

A very humble ‘thank you’ to anyone who read this thread/watched my video/thought about this, and especially if you replied.

Reply To: Reaper / Superior Drummer 3 – pops & crackles on Reaper start-up version: 3.4.1
Operating system: macOS Sequoia (15)

2

Thanked by: John and Brad

[rrrural]

@john – only 1 when I reported this, but I have experimented with 4 and 8 (the max) – changing the value didn’t make any discernable difference.

[rrrural]

Maybe a shot on the dark but are you running in cached mode? Do all of the samples load at first start-up or do more samples load as you hit the kit pieces?

No, I’m not running in cached mode. I wasn’t familiar with the performance options in SD3 but I’ve had a play around and I am now.

@Brad – Before I changed any settings I exported the SD3 settings. I’ve attached the SD3 save file, zipped up.

Reply To: Reaper / Superior Drummer 3 – pops & crackles on Reaper start-up version: 3.4.0
Operating system: macOS Sequoia (15)

[rrrural]

I’d agree with you @drumjack52, but it works flawlessly – for hours on end – once I reload the plugin. It is enough RAM (this is Apple Silicon/Unified Memory after all).

There seems to be some issue with the way the project first loads, or the way the plugin loads a “resumed” state.

[rrrural]

Hi Brad, thanks for your reply.

I’ve done some more thorough testing, and I do see marked improvements when I increase the Request block size values.

Request block size | Time to reach stable audio
1024 | 4 seconds
512 | 20 seconds
256 | 30 seconds
128 | unknown (gave up after 1 minute 20 seconds)

I have 16GB RAM in the MacBook Pro.

Unfortunately the higher Request block size values produce too much latency for me to be able to play in time.

Whilst this information is interesting, I’m not sure how to make use of it. I’m still puzzled – if I remove the plugin, and add it again, I receive glitch-free audio for hours on end. My system is quite capable of handling it, even with Request block size set to 64.

• This post was modified 1 month, 3 weeks ago by rrrural.

[rrrural]

Here’s a video of the issue I’m experiencing – I uploaded it to YouTube. I load the project, play for a short while, then deal with the issue manually by removing and adding the plugin.
At the end of the video I go through the settings.

I haven’t been able to share on the Reaper forum yet as I still don’t have permissions to post.

[rrrural]

Hi John – thanks for the reply.

sounds like both an annoying and strange problem if this is only after startup and not while running the Project?

Yes that’s right – I experience this when I open Reaper and the project first loads. The problem is experienced until I remove the SD plugin and add it again.

If you open the Project, bring up the plug-in interface and hit Play, does it go away or is it still crackling?

That doesn’t help – still crackling. Interestingly I noticed that it seems to crackle more when I hit the kick drum or the snare. I can’t get it to crackle at all with the crash/ride cymbals. Not sure if that’s a volume thing. That makes it sound like an audio interface problem, but I can reproduce perfect, smooth audio by removing the plugin and adding it again (I usually do both actions in one go with the FX window open).

I went through the preferences and mine match yours, with the exception of my “Request block size” in Audio device settings. I tried setting to the same value as yours but that didn’t make any difference. Edit: See first reply to Brad, below. After further experimentation, I am seeing differences when changing these values, but I still don’t have a practical solution to my problem.

I’ll record a video of the symptoms and include the same preferences panes in the video.
I’ll also post this on the Reaper forum (when the admins are able to approve the addition of my account).

In the meantime, any other ideas will be warmly received.

Thanks!

• This post was modified 1 month, 3 weeks ago by rrrural.

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