ER-301/Tracker

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Issues

Reported but not confirmed crashes

  • Crash when quicksaving a CPU-heavy patch.

Confirmed crashes

  • None at the moment

Bugs

  • Grain Stretch > grain rendering is not respecting slice boundaries.
  • After X hours, sample playback glitches (reported but not confirmed on my end yet but seems to be power supply related).
  • Discontinuous playback when playing unit shares buffer with another recording unit (play/record head leapfrog bug).
  • Occasional buffer over-runs when recording to a class 10 card.
  • Sample Player wave display sometimes does not reflect newly recorded content of a shared buffer. (see Forum: Question about looper/recorders and sample players with shared buffers)
  • Input resampling algorithm has aliasing artifacts.

Cosmetic bugs

  • scope traces draw outside of border
  • frequency display on gate/trig parameters sporadically shows incorrect value
  • short triggers do not show up on the bicolor LEDs (frame rate aliasing)
  • Mono subchains of stereo chains do not show signals on scope if 2nd channel is selected.

Feature Requests

Tip-bulb.png
The majority of the requests listed here were compiled from requests made by users over at the forum.
Pitfall.png
Please do not purchase the ER-301 only because of something(s) on this list because there is a risk that I might not get all of these features implemented in a time-frame that is useful to you. I will work hard (but not to the point where I destroy my health or my love for modular) and hopefully the upcoming SDK will alleviate some of this time risk but it is still a very real possibility that some of the items on this list will never be realized.


In Progress

        _,'|             _.-''``-...___..--';)
       /_ \'.      __..-' ,      ,--...--'''
      <\    .`--'''       `     /'  in-progress
       `-';'               ;   ; ;
 __...--''     ___...--_..'  .;.'
(,__....----'''       (,..--''
  • hold mode
  • scope mode (aka bird's eye view)
  • polyphonic sampler
  • wavetables
  • cherry-picking from list below

Definitely

                        _
                       | \
                       | |
                       | |
  |\                   | |
 /, ~\                / /
X     `-.....-------./ /
 ~-. ~  ~              |  definitely
    \             /    |
     \  /_     ___\   /
     | /\ ~~~~~   \ |
     | | \        || |
     | |\ \       || )
    (_/ (_/      ((_/

Routing Signals

  • see thread.
  • feedback
  • crossfade
  • with custom controls
  • gift local parameters to all units
  • replace global chains with global parameters
  • custom ranges for faders
  • control for stereo audio input
  • control for integers
  • provide custom unit's input as a local source
  • expose internal unit state to (downstream) chains

Custom Units

  • Promote/demote controls on embedded units to the parent custom unit.
  • Hide controls that are used for implementation only. Differentiation between UI and implementation.
  • User-configurable parameter ranges.

Unit Parameters

  • user bookmarking of specific values for quick selection of often used values (via shift+encoder)
  • on the spot adjustment of knob sensitivity
  • on the spot adjustment of parameter ranges
  • parameter recall via stack semantics (push and pop)
  • combine L/R faders and use channel select buttons to determine L vs R vs LR

UI enhancements

  • numeric entry of parameters
  • drag unit to new position (see thread)
  • include user unit presets in the unit choooser in a natural way
  • AIFF support
  • remap Gx and INx when loading a chain preset into a different channel
  • Clearly display buffer/sample assignment in units that have them.
  • Customize unit selection screen via configuration file (see thread)
  • Tween GUI animations against wall clock instead of frame clock
  • Replace/Swap Unit command

Scopes

  • tuning info
  • adjustable time and amplitude scales

Firmware updating

  • implement restore points (copies of files that were changed by the firmware update)
  • add scripts to be executed before and after the installation

Presets

  • shareable packaging
  • extensions: *.cha, *.uni, *.pro
  • list what failed to load (samples, units, slices)
  • Endless quicksaves
  • Quicksave folders

Slicing

  • Global slicing vs local slicing.
  • many slice files for one audio file
  • many audio files for one slice file
  • learn function for slice selection
  • support for WAV cue chunks (see thread)
  • JSON/XML formatted files
  • vertical zoom

File browser

  • ops: rename, delete, move
  • package preset

Looping

  • layering looper (see thread)
  • variable speed recording
  • pedal Looper > double loop length
  • speed control
  • more monitoring options
  • reverse
  • half speed
  • loop volume level
  • option to begin overdubbing immediately after first record pass.

Sampling

  • looping mode w/ cv-control of loop start(offset) and length
  • multiple sample buffers
  • next slice trigger
  • more slice types (bounce, jump, random)
  • specializations
    • sampled instrument player (i.e. keymapped ADSR samples, sfz files)
    • drum kit player (i.e. multiple one-shots in parallel)
  • Offer to purge unused samples when sample memory is full. (see thread)
  • end of slice trigger (see thread)
  • end of slice fade

Mixer(s)

  • add/remove channels
  • specialize mixer into 3 types: insertion, layering, song (see forum post)
  • add custom controls

Clocking and Timing

  • snap and recall tempo for Tap Tempo
  • clock multiplier
  • clock divider
  • 1V/oct to period converter
    • workaround: 1V/oct --> Any Oscillator Unit (1V/oct) --> Period-o-meter

EQ3

Delay(s)

  • adjustable max delay
  • freeze/reverse via gate input
  • non-pitched delay adjustments
  • micro-delay unit
  • CV-able feedback amount
  • alternate pitch-shifter via dual delay-lines and Doppler effect

Oscillators

  • more waveforms
  • sinc-based pulse-trains

Envelope Follower

  • output gain

Filters

  • more peaks (or specialized formant filter?)
  • add resonant band pass

Lookup Table (LUT)

  • quantize to user scale
  • wave folding
  • response curves
  • drawable(?)
  • load/save as WAV
  • Window Unit: specialization of LUT for soft selection operations (see post)

Wavetables

  • basically looper optimized for very short loops with pitch/loudness normalization
  • user sets start and stop points in a source sample
  • (user-assisted) pitch normalization of each wavetable/loop
  • (user-assisted) loudness normalization of each wavetable/loop
  • morph between multiple wavetables/loops
  • phase modulation
  • offset modulation

Unit templates

  • user saves the state of a unit as a special preset that will be used whenever instantiating the unit

Settings

  • button bounce time
  • default delay max time
  • default fade time
  • flash message time
  • zoom step for wave displays
  • common default parameter values (mixer gain, VCA level, etc.)

Command Bus

  • command messages broadcast or sent to specific units
  • example: clear buffer to all loopers
  • command generation unit that will emit a set of commands when a trigger is received

Eventually

  |\      _,,,---,,_
  /,`.-'`'    -.  ;-;;,_
 |,4-  ) )-,_..;\ (  `'-'      eventually
'---''(_/--'  `-'\_)

More Units

  • spatialization
  • compressor
  • slow random source
  • bytebeat
  • simple step sequencer
  • digital waveguide synthesis (wind and string models)
  • (experimental) data-driven multitap delay: real-time onset detectors feed clock and feedback amount
  • (experimental) non-linear oscillator (driven oscillations)
  • (experimental) automatic loop/wavetable clustering

UI enhancements

  • undo