This week I wrote 2 blogposts on aliasing in amp simulation. I focussed on Reason for part 1 and focussed on Ableton Live for part 2. Aliasing is ruining perfect sound, making digital sound uhm… digital!
For today, for part 3 of what seems to have become an aliasing series, I want to focus on all the Reason rack devices which can saturate an audio signal. Testing both the native Reason devices as well as the rack extensions I have bought. To see (hear!) if they are prone to produce these annoying aliasing sounds. This time I didn’t make samples.
What I found out is that all standard Reason devices are producing aliasing sounds. Yes ALL of them!
Here’s the list of all the default Reason devices I have tested:
Pulveriser (Dirt module): aliasing!
The Echo (Color module): aliasing!
Aligator (Drive module): aliasing!
Audiomatic (VHS & Cracked modes): aliasing!
Scream 4 (all modes): aliasing!
D-11 Foldback Distortion: aliasing!
Synchronus (DIST module): aliasing!
Thor (Shaper: all modes): aliasing!
Malström (Shaper: all modes): aliasing!
And here’s the list of the additional rack extensions:
Cakewalk RE-2A: no aliasing
Primal Audio ACID Diode Ladder Filter: no aliasing
Primal Audio Ladder Multimode Filter: no aliasing
Primal Audio PMS-20: aliasing in both modes, see back of the device
Softube Saturation Knob: no aliasing
Battle-Axe Sound Destroyer: aliasing on all saturation modes (Cleave, Trash, Decap)
The Primal Audio PM-20 and the Battle-Axe Sound Destroyer REs are bummers! I hope the companies add a oversampling switch to these devices as quick as possible. Like I would advice the Props to update their devices one day soon with a switch on the back of the devices. 2 times oversampling is probably enough to prevent them from aliasing. So it should be a super easy fix right?
It is 2016, stuff shouldn’t sound low res digital anymore. Simple as that.
image by Moxfyre / under Creative Commons BY-SA (Wikimedia)
P.S. these tests are done using a sample rate of 44.1 kHz. Sometimes I use 48 kHz for video projects.