b-b-b-b-beat

B-B-B-B-Beat

v0.11.0

A repeater inspired by Ableton's Beat Repeat for Norns, with some added glitchy inspiration from MASF Possessed/MWFX Judder.

This script uses live audio or samples for all of its repeating magic! Read more about the different modes in the guide.

Demo

I'll post a brief demo showing B-B-B-B-Beat in action, soon.

Requirements

Norns or Fates or device running a recent norns release (uses clock.tempo_change_handler). For Fates owners, BPM value can be persistently controlled using the 4th encoder, for Norns owners it's E2 the first page P0. BPM adjusts the system clock tempo directly (PARAMETERS > CLOCK).

Install/Update

B-B-B-B-Beat can be installed via Maiden's project manager.

Params

Params be controled with Midi CC via MAP within params menu. For a detailed overview of the params and general functionality of this script refer to the guide.

Development

SSH into your Norns/Fates, then enter the following commands in terminal.

$ cd dust/code
$ git clone https://github.com/frederickk/b-b-b-b-beat.git

If you want to get the latest version run these commands:

$ cd dust/code/b-b-b-b-beat
$ git fetch origin
$ git checkout primary
$ git merge origin/primary

Changelog

• v0.11.x
  • Added Gate: total length of repeats after each capture (P2), ported from the feature-tape-in branch
  • Added Output mode mix, insert or gate (P5), ported from the feature-tape-in branch
  • Split glitch into Glitch (frequency) and Intensity (P4); glitch speed changes hold until the next grid step
  • Pages regrouped: P2 offset/gate, P3 chance/variation, P4 glitch, P5 output/mix, P6 mode/input, P7 - P12 FX
  • Screen drawing moved into lib/core/ui.lua
  • Repeats only restart when the loop no longer lines up with the step, so steady stutters loop sample accurately instead of flamming
  • Updated screenshots
  • Fixed repeats being a quarter of the Grid length (loop length treated bars as beats)
  • Fixed repeats and captures restarting outside the loop, which smeared the start of every repeat; Softcut crossfade now set to 5 ms
  • Fixed the last second of samples never playing (loop now covers where the file sits in the buffer)
  • Fixed glitches never happening on 1/256 grids (and half as often on 1/128)
  • Fixed grid steps drawn past the end of the bar for intervals under 1 bar
• v0.10.x
  • Added repeat FX: pitch (+/-24 st), volume and band-pass filter (pages P5 - P10)
  • Added pitch decay and volume decay per repeat
  • Added tempo-synced LFO per FX (sine, triangle, saw, square, s&h, random per repeat), each on its own page
  • Added dry/wet Mix (P4 E3) and Input stereo/mono param
  • Each page now edits two params with E2/E3, no held keys
  • Chance now mutes repeats on steps where it doesn't fire, so 0% is dry
  • Variation now plays random shorter loops (exact halvings of Grid) for a step, instead of jumping to 1/256
  • Tempo indicator swings once per bar instead of every grid step
  • Screen glitch now follows audible glitches; Glitch UI on by default
  • Fixed no audio being recorded when the system mixer's softcut input adc is at -inf
  • Fixed volume and pitch decay counting grid steps where no repeat played
  • Fixed band-pass filter level jumping by ~35 dB across Width (now unity gain)
  • Fixed loop length for non-48kHz samples (Softcut doesn't resample)
  • Fixed Chance/Glitch staying at 0%/100% when K3 is released on another page
  • Fixed 3 encoder norns being treated as Fates (no P0, no BPM control)
  • Fixed triplet lengths (1/96, 1/48, 3 bars): recording never stopped so nothing repeated, and steps fell at the wrong times
• v0.9.x
  • Updated for latest norns firmware
    • BPM controls system clock_tempo directly; script no longer resets tempo on load
    • Loop length follows tempo changes from any clock source (clock.tempo_change_handler)
    • System mixer levels (input, softcut, reverb send) restored when script exits
    • Stutter mutes softcut voices instead of global softcut level
    • PSETs written to last used slot instead of always overwriting slot 1
    • Named param separators/group IDs
  • Fixed screen smearing when Glitch UI is off
  • Fixed crash when releasing K2 (or K3 on pages without a K3 action)
  • Fixed mono sample loading
  • K3 sample selection now updates (and saves) the Audio file param
  • Removed leaked globals (incl. a stray global init in lib/core/ui.lua)
  • Added sample loading
  • Toggle live/sample mode in UI
  • Tweaked glitch effect
  • Fixed 'core' appearing in Norns list
  • Created GUIDE.md
  • Change K3 function to toggle params
• v0.8.x
  • Separated clock and redraw coroutines (https://llllllll.co/t/norns-clock/30738/77)
  • Fixed passthrough bug when chance below 100% 🤞
• v0.7.x
  • Added offset param
  • Updated UI; more detail
  • Removed SC engine, restart no longer required on install
  • Addressed repeat (tempo/softcut) bugs
  • Updated README.md with more detail
• v0.6.x
  • Refactored codebase
• v0.5.x
  • Fixed Glitch engine
  • Added param to toggle glitch noise (hiss)
  • Added param to toggle UI glitch
  • Added param to toggle stutter
  • Added to Maiden
• v0.4.x
  • Fixed params bug; params:add_option
  • Fixed "Chance" param; default 100%
  • Added Midi passthrough
  • Enabled param reading/writing
• v0.3.x Initial release