Frap Tools 321 In-Depth Tutorial | Eurorack Amplifier, Inverter, Offset and Mixer for Audio and CV

Today we explore every function of the 321 utility module. Did you know them all?
321: frap.tools/321/
Check also this classic talk on amplifiers, inverters, offsets: • Amplifiers, Inverters,...
00:00 321 Overview: flip, shift, scale, combine.
01:00 Audio amplification with the 321
01:23 The LEDs indicate positive or negative voltages
01:45 Amplification and attenuation of a bipolar LFO
02:10 Amplification and attenuation of a unipolar LFO
02:44 Inverting a unipolar LFO
03:02 Inverting an audio signal (phase)
03:24 Inverting a bipolar LFO
03:54 Offsetting a LFO
04:47 Combining inverters and offsets
05:01 Getting a straight DC offset
05:22 The 321 as a mixer: All output and Unpatched output
06:13 Submixing waveforms through the All output and the -6 dB switch
07:21 Mixing audio and processing CV: the Unpatched output
09:02 Mixing CVs and processing audio
#fraptools #eurorack #modularsynth #tutorial

[@matnetik]

Such a great utility - thanks for this breakdown

[@FrapTools]

Glad it was helpful!

[@cloudfan420]

Best CV processing utility in its class. Having switches to remove the offset and invert the phase is so handy - no more trying to find exactly 12:00 on the offset knob. I always forget about the amplification for bringing audio levels up, too!

[@cloudfan420]

Apologies to anybody who clicks that "timestamp" and gets yeeted beyond the end of the video.

[@FrapTools]

Thanks a lot! We introduced the switches for that specific purpose-if you're dealing with audio, there's no room for imprecise DC offset!

[@cristiancascone3305]

321sto per ordinarlo, inizio con questo modulino al momento tra i tanti vostri moduli.. questo è utilissimo per gestire al meglio le modulazioni anche troppo complicato per un principiante come me😅 grazie!

[@FrapTools]

Grandissimo! In effetti è vero, nonostante le cose che fa siano poche e facili (attenuazione, inversione, offset e mix, nient'altro) la gamma di funzioni si complica un sacco quando inizi a mescolarle. In bocca al lupo!

[@joystickcan]

awseome compact tool !!!!

[@FrapTools]

Thanks!

[@Limbic1000]

Finally a good tutorial on the 321🎉 i use it alot

[@FrapTools]

Glad you found it useful! We've got one more coming for the 333

[@rampageExtremeGamer]

I use mine for mixng drums (kick, snare, hat) sounds great!

[@FrapTools]

That's awesome! It can be thought of as a "CGM little brother" in a certain way... As long as panning is not relevant!

[@Luke_Mile]

Ormai ci abituate bene al martedi sera. 😅😅

[@FrapTools]

Grazie Luke!