PHP MIDI CLASS

Description

Class for reading, writing, analyzing, modifying, creating, downloading and playing (embedding) standard MIDI files (*.mid, *.rmi) of type 0 or 1. MIDI songs are internally represented as lists of tracks, where each track is a list of messages, and each message is a string. The message string format is the same as the one used by the commandline tools MF2T/T2MF created by Piet van Oostrum.

The class provides methods to generate and manipulate MIDI data and to import and export binary midi files (SMF, *.mid), text in the MF2T/T2MF format and MIDI XML.

Applications

audio toys
mixers
sequencers
ringtone creators
musical education/training
...

Documentation

Demos

manipulate.php
demonstrates manipulation of MIDI data (imported MIDI file) in various ways

sequencer.php
little online sequencer, 4 drum tracks, 4 instrument tracks, 1 bar only, result can be saved (simple mix format: serialized post array).

mid2txt.php
demonstrates binary MIDI file to text (MF2T/T2MF format) conversion

txt2mid.php
demonstrates text (MF2T/T2MF format) to binary MIDI file conversion

mid2xml.php
demonstrates binary MIDI file to MIDI XML conversion

xml2mid.php
demonstrates MIDI XML to binary MIDI file conversion

meta.php
shows content of all meta events in the first track of a MIDI file. These events are often used for song title, copyright informations etc. (like ID3 tags in mp3 files).

duration.php
demonstrates how to find the duration of a MIDI file. uses a simple child class.

convert.php
converts MIDI files of type 1 to type 0. uses a simple child class.

volume.php
demonstrates changing the (channel) volume(s). uses a simple child class.

trim.php
demonstrates trimming a midi file. uses a simple child class.

mid2rttl.php
demonstrates (simple) binary MIDI file to RTTL ringtone conversion (uses the RTTL extension, see downloads).

rttl2mid.php
demonstrates RTTL ringtone to binary MIDI file conversion (uses the RTTL extension, see downloads).

Downloads

Contact

fluxus at freenet dot de