Patch Notes (in reverse chronological order);

Version 1.4.14 (Audio Exports)⤳

• Added support for .flac and .ogg audio exports
• Reverted ctrl + v sharing behavior with v

8/xx/2026

Version 1.4.13 (QOL)⤳

• New Keybinds!
• ctrl + left / right: Swap a channel instrument with its neighbor (similar to swapping channels)
• alt + left / right: Switch the currently selected instrument to its neighbor (similar to shift + number)
• alt + r: has been revamped to "selective random", which allows you to randomize specific features of your instrument
• ctrl + alt + r: open the selective random prompt to select which features you want randomized with selective random
• alt + v: "selective paste", which will paste only specific features of an instrument
• ctrl + alt + v: open the selective paste prompt to select which features you want pasted with selective paste
• Added 9 new presets and moved the vinyl preset to be a noise channel preset
• Randomly generated FM, FM6op, and supersaw instruments will now be able to generate with unisons
• The default custom theme is now based on the Slarmoo's Box Theme
• If a song EQ subfilter point count exceeds the main filter point count it now can be properly modulated
• Using ctrl + C to copy text properly works in the song player again
• JSONS will no longer include the monophonic chord tone or the arpeggio speed settings if the chord type does not support it
• Mod and song volume rendering will no longer break when modulating an envelope value
• Ported UltraBox 2.2.17

7/1/2026

Version 1.4.12 (Unisons For All)⤳

• Added Unisons to the FM, FM6op, and supersaw instrument types
• Updated the UI for custom scale, and set the default custom scale to be harmonic minor
• Added a new keybind: alt + b
• This will set the song loop to span the selected bars
• Updated custom samples to not initialize with a fade out
• Modulating envelope speed will now properly affect blip and flare envelopes
• When switching from the arpeggio chord type to the monophonic chord type, the arpeggio settings dropdown will no longer display
• The last sample of aliased custom chip instruments will now play again
• Using Alt + E for the envelope setting dropdowns will no longer result in de-syncs
• Undoing on drumset spectrums will now properly use the drumset spectrum as the initial value
• The note and pitch options for random envelopes will now properly change value for the interrupt transition type
• The granular effect now shows up where it appears in the default effect chain when enabled
• Minor UI aligning adjustments

5/25/2026

Version 1.4.11 (Patch)⤳

• The ×256 was accidentally using a 250 frequency, so ×250 replaces that and ×256 has been "officially" added
• Unison sign now works on samples

2/25/2026

Version 1.4.10 (Patch)⤳

• The song player will now save your last used loop and zoom settings
• Fixed the title in the song player occassionally not displaying
• Changed the default value for fall and lfo envelopes
• Corrected the lemmbox dark theme
• JSON exports no longer store 6 operators for 4op fm

10/3/2025

Version 1.4.9 (Patch)⤳

• Hopefully a mild increase in performance, and a major one when playing piano notes or adding a note while the song is playing

7/25/2025

Version 1.4.8 (Patch)⤳

• Added the sample loading status to the song player (Thanks Choptop!)
• Modulating supersaw spread will no longer occassionally cause the audio to break

7/19/2025

Version 1.4.7 (Patch)⤳

• Fixed Lemmbox theme
• Cleaned up credits and patch notes pages
• Clicks have been removed from low pitched spectrum and drumset instruments
• Removed a duplicate line in the custom theme prompt
• Fixed icon embeds

6/28/2025

Version 1.4.6 (UltraBox 2.2.16)⤳

• Port of UltraBox 2.2.16
• The metronome is no longer affected by song eq
• Ported the Voxonium theme from VoxBox

6/26/2025

Version 1.4.5 (Patch)⤳

• Granular freq and ring mod hertz now better compute fractional values
• Increased max filter points to 12
• Increased max envelope steps to 32
• Removed default panning settings from all presets
• Arp Speed now no longer displays as an envelope target when chord type isn't arpeggio
• Cleaned up patch notes CSS slightly

6/11/2025

Version 1.4.4 (Ring Mod Pulse Width)⤳

• Added ring mod pulse width slider
• Adjusted ring mod default values
• New envelopes will now have different default speeds based on the selected envelope type
• Reverted to UltraBox behavior for spread on single voice unisons
• Fixed sample buzziness
• Adjusted the ring mod waveform tip prompt

5/26/2025

Version 1.4.3 (Patch)⤳

• Piano-notes now correctly use last mod values
• Envelope sliders now render modulation correctly
• When loading a custom chip preset the instrument's volume slider will now take into account the previous value
• Pitch envelopes use the last pitch played when no pitches are present
• Arp speed envelopes now work with arp speed mods

5/5/2025

Version 1.4.2 (Presets and Randomization)⤳

• Added a new keybind: alt r
• This randomizes the instrument with the current instrument type
• Updated the random instrument function with 1.4 features
• Adjusted the bitcrushed piano and electric guitars 1 & 2 presets
• Added 2 new presets
• Fixed an issue where two mods simultaneously affecting song eq would make a weird crackly noise
• Changing monophonic's pitch no longer changes the preset
• The instrument selector's size is now correct

4/18/2025

Version 1.4.1 (Patch)⤳

• Added an Archives page
• Envelope bounds now are properly modulateable
• Fixed an issue with upper envelope bound rendering
• Fixed an issue with monophonic and effects
• Removed Testing from the main site
• Did some recentering with the monophonic chord type ui
• Sample looping is now fixed
• Punch envelopes no longer use cached individual envelope speeds

4/3/2025

Version 1.4 (Better Unison + new effects)⤳

• Increased max unison voices to 9
• Added unisons to the drumset instrument type
• Added 6 new unison presets
• Added a granulator effect (with help from leoV)
• Added Abyssbox's ring mod effect
• Added a new chord type (monophonic)
• Added "reset envelope" and envelope bounds modulators
• Echo delay is now envelopeable and modulateable
• Made discrete per envelope instead of per instrument
• Added a song length predictor to the song duration and beats per bar prompts
• Added 1 new preset group + 7 new presets
• Aligned the phase of the square lfo envelope
• Random pitch envelopes now will keep their random value if on the next bar the continue arrow is used
• The Highlight fifths and Show piano keys preferences are now enabled by default
• The ×128 and ×256 fm frequencies now use × instead of x

3/31/2025

Version 1.3.9 (patch)⤳

• Ported UltraBox 2.2.15
• Added mod recording for song eq and envelope speed
• Song eq now correctly finds last used mod value
• The default value (the value when you first place a note) for effect and envelope mods is now set to the value used on your instrument
• Envelope speed mods now check if an envelope exists before trying to modify it
• Added a donations page (entirely optional <3)

2/17/2025

Version 1.3.8 (new lfo waveforms)⤳

• Added the trapezoid, stepped saw, and stepped triangle waveforms to lfo
• Pitch envelopes now save their max value correctly
• Filter mods now allow you to type in values greater than 10
• Added the arrows to the random and lfo waveform select

1/29/2025 🐍

Version 1.3.7 (patch)⤳

• Ported UltraBox 2.2.14
• Fixed wording and typos in the description, faq, and patch notes
• Moved the UltraBox theme into the mod themes category
• Fixed the shaker preset from causing song corruptions
• Prevented lfo/random/pitch envelopes from causing song corruptions

1/18/2025

Version 1.3.6 (patch)⤳

• Fixed pitch envelopes and slides
• Fixed wording and typos in the description, faq, and patch notes

1/9/2025

Version 1.3.5 (better random envelopes)⤳

• Added two new types to random envelopes (per note and time smooth)
• Increased the max step amount for random envelopes to 24
• Corrected some preset errors
• Recentered the harmonics editor
• Ported UltraBox 2.2.13
• Posts with the #beepbox tag and a valid mod link show up on the new bluesky feed
• The FAQ now links to the BeepBox Modding server

1/2/2025

Version 1.3.4 (patch)⤳

• Oops some sample files were missing for the song player.. That's been fixed

12/14/2024

Version 1.3.3 (updated faq)⤳

• Ported UltraBox 2.2.12
• Updated the faq
• Mushroom Drum removed because it was a duplicate preset
• Compiled the offline version

12/1/2024

Version 1.3.2 (Even better randomization)⤳

• Adjusted random instruments again
• Undoing no longer changes rhythm
• Mild adjustments to the Slarmoo's Box theme
• Mild adjustments to the distant sorrow preset

11/13/2024

Version 1.3.1 (Better random envelopes)⤳

• Random instrument envelopes now utilize the new envelope settings
• The default rhythm has been reverted to ÷4
• Beepbox Theme channel mute buttons show up now
• Added 1 new preset

11/10/2024

Version 1.3 (Random Envelope, LFO, Envelope Modulation, and Song EQ)⤳

• Added a new random envelope type! This one will output a random value based on the seed and time in the song or pitch of the note
• Individual envelope speed can now be modulated
• Added song eq (thanks leoV!), which can be modulated
• Replaced the tremolo and tremolo2 envelopes with LFO, which allows for multiple different shapes in addition to the legacy sine wave
• Songs will start with a mod channel by default
• Added envelope copy and paste buttons
• Added 7 presets and 1 new preset group
• Added 4 new keybinds:
• e: opens the song eq prompt (the euclidean rhythm generator is moved to ctrl + e)
• alt + e: opens or closes all envelope dropdowns
• alt + f: opens or closes all fm dropdowns
• ctrl + shift + alt + s: Slarmooifies
• Added the 128 and 256 frequencies for fm
• Updated the pitch bounds tip prompt
• Pitch shift can now be added from within the mod channel dropdown
• Adding a mod channel now puts it in the correct place
• Removed empty note size envelope from the FM Sine preset and updated the Mercurial preset
• Envelope bounds are now clamped
• Songs now default to ÷8 rhythm
• Several minor UI adjustments
• Switching instruments while the synth is playing will no longer cause the instrument to break
• Pausing after recording will now return the synth to high-latency mode
• The Song Player now uses the Slarmoo's Box theme as its default
• Linking the Song Player in discord will now use the correct color

11/9/2024

Version 1.2.3 (Patch)⤳

• Fixed bounds not properly saving with json imports.
• Envelope Upper Bounds now properly transfer when removing envelopes

9/5/2024

Version 1.2.2 (Patch)⤳

• Added the "slarmoo's box" json import type.
• Importing a json song from an older version now sets the envelope types correctly
• Tremolo envelopes will no longer prevent a pitch from playing if the song has not been properly initialized
• Linked the FAQ page to the individual envelope speed prompt

9/3/2024

Version 1.2.1 (Patch)⤳

• Fixed blip, flare, and punch
• Envelope UI is now properly aligned
• Individual Envelope Speed no longer disappears after closing the envelope speed dropdown
• Preset and json import envelopes are fixed
• A speed of 0 is now possible for individual envelope speeds
• None envelopes now use envelope upper bound rather than 1.0
• The spectral cry preset has been replaced with ethereal
• Retitled the new preset group

8/31/2024

Version 1.2 (Envelope Speed and Spectrum Editor)⤳

• Added individual envelope speeds and bounds
• These settings were ported from Midbox!
• Because of this, many of the old envelope types have been removed (compatability has been preserved)
• Added new envelope type: fall!
• Arpeggio speed can now be enveloped (this setting is always discrete)
• Added a editing prompt for spectrum, harmonics, and drumsets that includes copy/paste settings
• Added 9 new presets, moved 2 presets to a new preset group: "Slarmoo's Box Chip Presets", and removed the pitch shift from glassy harmonics
• Shortened the space that pitch envelopes take up in the url (old song urls will still work and will update correctly)
• Increased likelihood of a plant, and changed a few plants
• Fixed bug that caused effects envelopes to always run when transition : continue was enabled (even when there were no notes playing)
• Fixed bug where drumset envelopes would import incorrectly from other mods
• Envelope Speed no longer affects drumset envelopes
• Updated random instrument generation
• Added a FAQ page detailing what Slarmoo's Box adds and help for the new envelope system
• The Slarmoo's Box theme is now the default theme
• The Slarmoo's Box icon now correctly displays on firefox
• You will now be automatically redirected to ./website if you forget to specify the path
• Updated to UltraBox 2.2.11

8/30/2024

Version 1.1.2 (UltraBox 2.2.10)⤳

• Updated to UltraBox version 2.2.10
• The hotdog is not making a return
• Increased max envelope count to 16
• Fixed pitch names for noise pitch envelopes
• Updated some song player keybinds for UltraBox consistency

8/11/2024

Version 1.1.1 (Pitch Envelope Minor Update / fixes)⤳

• Pitch envelopes are now properly affected by / calculating arpeggiation and pitch bends
• Added a note display for pitch range
• Added 7 new presets, including 3 new noise presets
• Fixed some Slarmoo's Box presets
• Fixed an issue when switching between noise and pitch channels in regards to pitch envelope ranges
• Standardized some Slarmoo's Box code
• Resized pitch range sliders to be consistent with the rest of the ui

6/17/2024

Version 1.1 (Keyboard Shortcuts)⤳

• Added a new theme (Slarmoo's Box)
• Added 6 new keyboard shortcuts to the song player:
• L: toggle loop
• Z/+/-: toggle zoom
• E/P: return to editor
• Ctrl S: shorten song player link
• S: share
• C: copy link
• Updated keyboard shortcut list at the bottom of the page
• Updated to UltraBox 2.2.9
• Donation form re-added

6/4/2024

Version 1.0.1 (Patch)⤳

• Did a purge of every mention of UltraBox where needed
• Fixed a bug with removing envelopes and the new envelope settings
• Fixed json importing, exporting, and instrument copy and paste in terms of the new envelope settings
• Fixed a bug where the pitch envelope's end would slowly decrement
• Pitch envelopes no longer consider song octave or key
• Fixed a few instances where the envelope extra settings dropdowns would not work properly
• Fixed an issue where if pitch envelope inverse was checked in 0.9 it would invert every envelope in 1.0

5/30/2024

Version 1.0 (Official Release)⤳

• Added 3 new presets: Slarmoo's Pulse, spectral cry, and walrus wuh
• Balanced Slarmoo's box preset volumes
• Pitch envelope starts, ends, and inverses are now per envelope instead of per instrument
• All envelope curves can now be inverted similarly to pitch
• Shift + Enter is now working properly
• Replaced some stray UltraBoxes in the tip prompts
• Fixed some incorrect information present in the instrument type prompt
• Re-added the "Mono" theme, now renamed to "Greyscale"
• Renamed previous update to 0.9
• Updated to UltraBox 2.2.8

5/29/2024

Version 0.9 (built on UltraBox 2.2.7)⤳

• Added more envelope options! These include:
• Reverb, panning, chorus, echo, bitcrush, frequency crush, and distorion can now be changed with envelopes
• A pitch envelope type! This is similar to note size, but for the pitch instead.
  You can also edit the start, end, and direction with the + sign
• 15 new presets found under the "Slarmoo's Box" tab
• New web icon
• "UltraBox" replaced with "Slarmoo's Box" in almost every instance where needed
• More keyboard shortcuts added to shortcut list
• Hotdog removed

5/13/2024