Tuesday, September 12, 2023

NoInputMixer - Feedback-based instrument

NoInputMixer is an experimental feedback-based musical instrument that models an analog mixing console, designed to create a wide range of amazing, otherworldly electronic sounds by feeding the mixer's output back to its input.

>>> Get this app on App Store
Universal app for iOS and macOS (AUv3)

By using this technique in the creative process, the sound designer can explore many different and special ways to create sound. Unsettling soundscapes perfect for sci-fi, dystopian and horror projects, like strange noises, disrupted signals, broken communication, buzzing drones, faulty machinery, futuristic tech sounds, and glitchy elements are some results of the No-Input Mixing technique.

The downside of this technique, which can scare off beginners, is extreme unpredictability and instability, when the movement of any knob on the mixer can dramatically change the sound in the most unexpected way. But at the same time, this discover an endless space of experimentation and inspiration when creating new and unique sounds or live performance.

NoInputMixer consists of a seven-channel mixer and an effects rack with eight slots. Each effect slot can be configured as an insert effect for a mixer channel or used with two send/return buses. Effects has an option for hi-res or lo-fi sound processing. Each mixer channel has its own algorithmic generator of different types of noise, which can be added to the feedback signal or used separately. The input selector switches between multiple points in the signal path to make different types of feedback loops or can be switched to an external input for any channel to use it as an effect processor.

Also this application provides several additional options not found in usual mixers, such as preamp tube type and mode selection, op-amp type selection, adjustment of overload protection circuit, and other features that greatly expand the possibilities for experimenting with sound. The user interface can be presented in the form of a classic mixer, or in the form of complete control of a single channel.

Block diagram of the internal structure

This diagram shows all application modules and their connection. With this diagram, you can better understand the purpose of each control and how they can affect the signal.

The diagram shows one channel. All channels are identical. Signal flow in the channel passes from left to right, to the internal mixer buses (blue vertical lines). The feedback path is shown as red lines at the top.Using the group feedback path, you can build complex structures where several channels interact together in one feedback loop. The main element that defines the type of feedback loop is the input selector.

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Quick reference

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NoInputMixer is a universal application for iOS and macOS. It can work on iPhone and iPad as well as Mac / MacBook with M1 chip (and later). NoInputMixer works on iPhone and iPad standalone, as an Audio Unit or Inter-App Audio module, and supports Audiobus and Ableton Link. On MacOS, NoInputMixer can works both as a standalone application and as an Audio unit (AUv3) with DAWs and other hosts that support AUv3 plugins. All application features are available on iOS and macOS, including MIDI support (with a MIDI learn option) and audio unit parameters. NoInputMixer has a built-in detailed description of all parameters also available as PDF file on the application site.

>>> Complete description of NoInputMixer 1.1 (pdf)

Demos and reviews:

No Input Mixer - Detailed Spoken Walkthrough (Gavinski's Tutorials)

No Input Mixer - Setting Up & Getting Started - Tutorial for the iPad (The Sound Test Room)

NoInputMixer: Orientation! Excellent overview with technical details of the app (Mark Hurst)

NoInputMixer - Tutorial 1: Getting Started (SoundForMore Tutorials)

NoInputMixer - Tutorial 2: Internal Workflow (SoundForMore Tutorials)

NoInputMixer - Tutorial 3: Mixing Console for Reverb and Effects (SoundForMore Tutorials)

NoInputMixer - Tutorial 4: Simple Feedback Loop Example (SoundForMore Tutorials)

Experimental Feedback Looping with NoInputMixer on iOS (Jade Starr - How To App on iOS!)

NoInputMixer: My 1st made-from-scratch captioned jam! (Gavinski's Tutorials)

NoInputMixer - Feedback-based instrument for iOS (e y l v y)

This is a great addition to the NoInputMixer with glitchy rhythmic patterns:

GlitchScaper - Rhythm & Glitch machine >> App Store

GlitchScaper (iOS/Mac/AudioUnit) is a rhythm machine with six sound generators, each controlled by a two-layer cycle sequencer, designed to easily create glitchy patterns and scapes. >>> More about this app

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