LMMS • Forums

Hey , I love what you guys have done here, and I use LMMS for literally all my music production nowadays, (professionally too), but I just had an issue when trying to render down / mix down a final export of a track. You see normally I have no issues and can even oversample 2x and render a 32br, 192,000 hz, etc, but I just rendered as normal and all of my volume data got mixed up and distorted!
Not really sure what happened, I've mixed down 4 more times, turning the master down, turning down the quality, adding more buffer time for my pc, and all of that but either a glitched mess comes out that resembles my track, or something that sounds good for a second and when the melody hits , it blasts way too loud, as if it doubled up the volume entirely out of nowhere!
I'm currently running Linux Ubuntu and LMMS 1.2.1, I've never had this issue before, and it only happened just now. Maybe it has something to do with the amount of plugins I used throughout (countless) or how I used certain ones in conjunction with eachother, but I was surprised and sad to see this happen when it never had before, I'm going to attempt a system restart and then export again but I'm not really sure what the deal is Appreciate the help / mods takin the time to read this, and best of luck.

DualityTheSoul wrote: ↑

Wed Mar 04, 2020 11:44 am

Hey ,

Hi, Welcome to the Forum DualityTheSoul !
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I use LMMS for literally all my music production nowadays, (professionally too)

We would love to hear more about any professional success - :)

I just rendered as normal and all of my volume data got mixed up and distorted!
running Linux Ubuntu and LMMS 1.2.1

The first thing i would check is if you by accident have changed your Backend, in settings. SDL is universal for all OS -btw, but you properly know what you have used successfully earlier - Check that!

Secondly i would retry to export a previous project, that once has been exported perfectly. If that is garbled, we can disregard the issue with multiple plugins.

Thirdly, a few plugins can mess things up, Mallet is defect for all 'Bars', and creates bad distortion, but that you should definitively also be able to hear in normal replay!
The same for any other plugin..
Its actually a bit strange.. :|

Fourth, and that one is 'nasty'..
You will have to find the time-slot where the distortion occur.
At that time, make a loop of .. 30 secd.
Make sure that the garbled sound is exported, also for a just 30 secds
..And then you need to export that loop over and over ..and over -Each time you need to disable one track after the other :|
Even with such a drag of tediousness there is still no guarantee that you can isolate the flaw, because unfortunately the distortion could be due to more than one plugin simultaneously
Is so -its almost impossible to isolate
afair you would for a song with 10 tracks need to test
((10*9*8*7*6*5*4*3*2) / 2) times *argh*

Thanks for the reply musikbear, yeah its a bit strange honestly and im not really sure what the deal is, ill look into the backend stuff and my audio drivers more in-depth (ubuntu is a nightmare when it comes to properly configured drivers of any sort) but the problem only seemed to happen once I started using reverb & the bass enhancer plugins respectively as ive never used them before (also a bummer due to the nice harmonic additive that it gives) so i might just try exporting without those plugins as they could be broken on my specific setup, but i'll try some recon and see what i cant muster up! and as for professional success that depends on how much more i can learn about LMMS and its sidechaining matrix, (i make hip hop instrumentals and sidechaining a kick with a 808 bassline seems to cause a crackling effect, more research needed) ,but once again thanks for the response and I'll take into consideration what you said. (for reference, I use the synaddsubfx plugin for all of my melodies / main synth work, minus a fee samples recorded myself, and all of my drums are high bitrate samples recorded myself and then eq'ed / faded out , etc, sometimes i'll use the automation tracks in conjunction with a master volume management in the mixer, which could have caused an issue but i doubt it, so like you said its really a matter of trial and error at this point, ill get back to you / this thread when i've exhausted some more possibilities

Sorry for the double post (mods feel free to delete the prior post if you wish) but I think I just figured it out! I took off the Calf Bass Enhancer plugin on one of my SynAddSubFx tracks, which caused it to be muted entirely on export, I went back in, turned the gain up considerably, re-exported, and now it sounds almost perfect (aside from a slightly quiet output) and i also noticed something else! the track i made has a long drone intro, with some reverb and delay effects, but i noticed that the effects were creating a lot of noise data that was inaudible somehow, because when i mixed it down just now it started clipping harmonics in one of my ears, which leads me to think that may have also carried on when the sample stopped and messed up the export process (possible, not definite) but im happy cause now i got my track and i can fine tweak what needs to be tweaked, so maybe this is a good reminder for anyone to be careful to not use a bass enhancer plugin unless they know exactly what they're doing, because it mixes down differently than it sounds in LMMS!

DualityTheSoul wrote: ↑

Wed Mar 04, 2020 10:17 pm

I use the synaddsubfx plugin for all of my melodies / main synth work,

zasfx is a super synth, and it is very cpu friendly, so with your HW you should be able to use a lot