Edit Infobox GB Homebrews: Droneboy GB

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{{#seo: |title=GameBrew |title_mode=append |image=droneboygb.png |image_alt=Droneboy }} Drone music application for Game Boy. Droneboy creates endless tones or drones on the Game Boys four channels. You can manipulate volume, duty and frequency. == User guide == The Droneboy consists of four control pages: volume, duty, frequency, and chord/chord step. Use Select to switch between these pages. Each page includes macro and inverted macro markers activated by the A button, influencing fader responses. A macro marker connects faders' changes across channels, while an inverted one does the opposite. === Volume page === * Left/Right - Alter sound channel: sweep, square, wave, and noise * Up/Down Adjust volume, or HOLD UP/DOWN continuously changes it * Hold B+Up/Down - Maximize/Minimize sound volume === Duty page === * Left/Right - Change sound channel * Up/Down - Cycle through duty settings * B on noise channel - Toggle polynomial counter's step * A on wave channel - Change wave type: square, saw, ramp, triangle, or sine === Frequency page === Hold A and press B to change mode between notes and frequency. In frequency mode: * Right/Left - Alter channel (sweep/square on top, wave/noise below) * Up/Down - Change frequency step or HOLD UP/DOWN continuously changes it * Hold A+Up - Change frequency by 100 steps * Hold B+Up - Change frequency by 10 steps In note mode: * Left/Right - Change channel * Up/Down - Change note by 1 semitone * Hold A+Up/Down - Change note by 12 semitones (octave) * Hold B+Up/Down - Change note by 3 semitones * Hold B+A - Copy the current note's frequency to the frequency section (useful for detuning) The noise channel's freq mode controls Shift Clock Frequency, while note mode offers D and G# notes. === Chord/Chord step page === There are two modes: "chord change" for manipulation and playing chord steps for playback. In chord change mode, a marker(square) indicates the manipulated chord part (root note, minor/major, augmented/diminished/normal). Use Left/Right to switch parts, and Up/Down to adjust values. When on root note part, hold A+Up/Down for 12 semitones, hold B+Up/Down for 3 semitones, Up/Down for 1 semitone. Press A to play current chord, press again to retain sound, allowing chord changes before retrigger. "On/off" sprite above the chord change part signifies this state. The chord step part has 8 slots for chords set in chord change mode. * Move "record marker" in chord change mode with A+Left/Right. * Press B to assign selected slot with the chosen chord in chord mode, creating a sequence. * Switch to chord play mode by holding A and press B. In chord step mode, navigate the chord step sequence with Left/Right, press B to play the selected chord. Repeatedly pressing B on the same slot retriggers the chord. Start displays the credit page. == Screenshots == https://dlhb.gamebrew.org/gbhomebrews/droneboygb2.png https://dlhb.gamebrew.org/gbhomebrews/droneboygb3.png https://dlhb.gamebrew.org/gbhomebrews/droneboygb4.png https://dlhb.gamebrew.org/gbhomebrews/droneboygb5.png == Compatibility == Droneboy ROM was developed and tested using BGB, SameBoy and Emoulicious. == Changelog == '''1.07 2022/05/12''' * Addition: ** New less clicky volume change. ** Continuously change volume by holding up or down. ** Continuously change frequency when in frequency mode by holding up or down. ** Copy over note frequency to "frequency mode" on frequency page. '''1.06 2022/05/04''' * Addition: ** Chord page. ** Play and change chords. ** Chord step sequence. * Fix: ** Changing frequency no longer retriggers channel, aka less poppin. '''1.05 2021/11/08''' * Addition: ** New waves in wave channel, saw, ramp, triangle and sine. '''1.04 2021/10/20''' * Addition: ** Credit page. ** Edit counter step of noise channel on duty page. ** Tones on noise channel on freq/note page. ** Macro markers on noise freq/noise. * Fix: ** Noise channel macro and state handling. '''1.03 2021/09/28''' * Fix ** Fixed blinking backgrounds. ** Note/frequency indicator on freq page shown correctly. '''1.02 2021/09/28''' * Addition: ** Macro and inverted macro markers. ** Dividing ratio of frequencies fader for Noise channel on duty page. ** Min/Max volume control. '''1.01 2021/08/31''' * Addition: ** Duty on wave channel. ** Show correct header when in note or frequency mode on frequency page. * Fix: ** Wave volume refactoring. '''1.0 2021/06/03''' * Addition: ** Initial commit. ** Volume on all channels. ** Duty on Sweep and Square. ** Freq/Notes on all channels(noise only has freq). == Credits == *GBDK-2020(version gbdk-4.0.5) https://github.com/gbdk-2020/gbdk-2020 *Emulator used in development BGB https://bgb.bircd.org/ *Sameboy also used in development, very good for examining wave ram https://sameboy.github.io/ *Sprites and maps made with GBTD/GBMB http://www.devrs.com/gb/hmgd/intro.html *Invaluable reference document for Gameboy https://gbdev.io/pandocs/ *Sound table reference for Gameboy sound frequency/note/hz/MIDI http://www.devrs.com/gb/files/sndtab.html == External links == * GitHub - https://github.com/purefunktion/Droneboy/

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