Knorr by Klevgränd

Today Klevgränd released Knorr, an AUv3 effect specifically designed for treating bass tones. It uses a combination of filtering, AM, and FM to make your bass sound gnarly! Knorr is also available for desktops.

Knorr App Store Description:

Knorr is a plugin that adds intensity and edge to a monophonic low frequency audio source (like a bass). The algorithm adds overtones to an existing sound in a way that isn’t possible with ordinary distortion or filtering.

The Knorr Algorithm

The underlying algorithm uses a combination of filtering, amplitude- , and frequency modulation to process incoming audio. Although Knorr is developed with bass sounds in mind, it can be used on any monophonic sound source as long as there is audio content available in the low mids (and below).

**User interface**

XY Pad - Controls the bandwidth and amount of energy sent to the algorithm. Click and drag to move the marker.

Range (X-axis) - Sets a low pass filter frequency of the signal to be sent to the algorithm. Spans from 100 Hz to 1 kHz.
Level (Y-axis) - Sets the level of the low passed audio content.

Bite (SOFT, MEDIUM, HARD) - Alters the amount of intensity of the modulations.

Output - Sets the output level.

Bypass - Turns the effect on or off.

Frequency Response graph - Shows the frequency response of the internal modulation signal.

Note that Knorr is a AUv3 only and and needs to be launched via a AUv3 compatible host like GarageBand, Cubasis, Auria or similar. It will not work as a stand alone application.

More info, audio samples etc available at

Mikromix Studio: Tracking Stems from OP-Z to Cubasis 2

YouTuber Mikromix Studio, DMV did a well edited tutorial on how to track audio and MIDI from the OP-Z into Cubasis 2! He then fleshes it out inside of Cubasis, and you can hear the finished beat at 4:12.

Video Description:

I record all the individual tracks of a new beat I cooked up on the OP-Z. See how I set up the devices and use the midi data for a new sound. This works for Beatmaker 3 and Cubasis but I wanted to use the built in Cubasis synths. From here, I can send the track to my mix rig for more detailed work. Beat at 4:12 Peace.

The Sound Test Room: cykle - Advanced Midi Step Sequencer

Doug Woods from The Sound Test Room did a live stream to show off the new cykle AUv3 step-sequencer.

Video Description:

Please help support thesoundtestroom by becoming a Patreon for as little as $1 a month.
You will also have access to exclusive Patreon only content and videos.

If you would like to make a donation to help support me and Jo you can use this easy link below.
Many many thanks for your support.

Groovebox Update

Groovebox, from Ampify Music, was updated with support for iOS 13. The update also adds a new follow mode for the piano roll, that will follow your finger when moving or lengthening notes.

What's new in Groovebox v1.15:

- Support for iOS 13
- Piano roll now automatically follows your finger when moving or lengthening notes towards the edge
- 'Snap input' now affects adding, moving and lengthening notes in the piano roll
- Various minor bug fixes

Thanks as always for your continued support. If you like Groovebox, we'd really appreciate a review on the App Store. If you find bugs or have any comments, drop us a line at

Here's a new track from Sebastian Resch using Groovebox, with an RGB keyboard for atmospheric lighting.

Ariel Raguet: Pure Data + KQ Dixie + Raspberry + Eurorack

YouTuber Ariel Raguet made some wild ambient with a Pure Data patch on a laptop sending MIDI to 8 instances of KQ Dixie in AUM. Ariel's Pure Data went even further with even more patches playing on two Raspberry Pi micro-computers! On top of all that is some Eurorack fun!

Video Description:

Ariel Raguet

Flores20191013 01 PD rpi rpi Dixie modular

Pure Data in a Lenovo Thinkpad sends 8 MIDI sequences of 4 notes each to an iPad Pro in an Alesis iODOCKII running an 8 KQ Dixie's sessions in AUM:
Sequences are chromatic random.
Also coarse, fine, , detune, feedback, EG R1, EG R4 (for all operators), panning, LFO in S&H mode with random speed are sending by the Pure Data sequencer.

Pure Data in two Raspberry Pi make granulations of wav files.

Korg SQ-1 sends notes to eurorack modular synth with:
Make Noise Wogglebug: random voltage and random clock source.
Make Noise Telharmonic: polyphonic phase modulation and harmonic additive digital sound source.
Befaco EvenVCO: monophonic analog pulse and sine waves.
Sistemas Modulares Núcleo 24dB VCF: filter for the pulse wave.
Agustin Aguirre RNDM: 2 channel random voltage generator.
Befaco Rampage: envelope generator and LFO.
Sistemas Modulares Núcleo Dual Linear VCA: amplitud control for pulse and sine waves.
Dual vactrol passive VCA: amplitude control for Telharmonics (cv from RNDM)
Rebel Technology Mix 02: mixing Telharmonic H out, P out, pulse wave and sine wave.
Tiptop uZeus: power

The general reverb is program 29 of a Behringer Xenyx 1002FX
The visuals are Winamp with Milkdrop2.

I wish to thank to Ryan Geiss for his awesome Milkdrop and all the artists that create those breathtaking presets.

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