ADSR Online Midi Editor and Player

The ADSR Online Midi Editor and Player is a complete online MIDI editor and player that was created in 2017 by MidiPro.org. The program requires no downloading, since it runs in the Google Chrome, Firefox, and Microsoft Edge browsers.
Features
*An unlimited number of Tracks can be created.
*Notes are added by clicking keys on a virtual synth keyboard.
*View and edit the exact Pitch, Velocity, and Duration of every Midi Event.
*Each track may contain two types of ADSR Envelopes (Amplitude and Low-pass Filter), and an LFO Modulator..
*Delete, Transpose, Insert Blank Space, Change Durations, or Change Velocities for notes in any selected time range.
*Select the Start and End of a Range of notes, and click Copy Range to copy those notes to the same Track, or to any other Track.
*The Midi Player lets you start playing at any position in the song, and Solo and Mute any Tracks. The event list will scroll to show the next event that will be played.
*The Midi Editor lets your sound card or synth play 48 Microtones per octave, each separated by 1/8 step.
*After you create a new Midi File, or edit an existing Midi File, you may Download the Midi File to your computer.
*To match the Tempo of any Drum Sample, you may Split or Double the Tempo without altering the pitch. For example, if your Midi File is 240 bps, splitting the Tempo will cause all Durations to be split in half, so the Tempo will become 120 bps.
Compatibility
This online program uses the WebMidi API and Web Audio API, which are now compatible with the Google Chrome, Firefox, and Microsoft Edge browsers.
Microtonality
'Normal' music contains 12 chromatic tones in each octave, and each tone is separated by 1/2 step. MidiPro.org allows your sound card or synth to play 48 Microtones per octave, each separated by 1/8 step. You don't have to create custom scales (which can't be transposed), or make any other modifications to your synth. Click the button on any Track, and add plus signs to raise a pitch by 1/8 steps. For example, G++ is 1/4 step higher than G. The three possible microtones for each note (+, ++, and +++) are sent to three separate midi channels that are raised in pitch by 1/8, 1/4, and 3/8 steps.
ADSR Envelopes
Each track may contain separate ADSR Envelopes for Amplitude, and for Low-pass Filters. Each track has eight controls which determine the shape of the overall volume and tone of each note.
LFO Modulation
If the Waveform is set to sine, LFO Modulation will produce a vibrato effect. A ring modulation effect can be achieved by setting the LFO Frequency to above 20.

Main Menu

See Also

Main Menu