Midium

1
The Music Processing Language
2

• Da Quan Rong

Project Manager
3
The Midium Factor
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Midium

• scripting language
• composition and editing of music
• platform independent architecture
• support for wav, midi and Mp3
• useful regardless of musical ability

5
Language Features

• Interpreted
• Java-based
• Enables music effects processing

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Midium Program

• sampletrack open("sample.mp3")
• play(sampletrack)
• while(sampletrack.realDuration gt 100)
• wait(4)
• changeSpeed(sampletrack,1.2)
• endwhile
• wait(3)
• stop(sampletrack)

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Application Domain

• programming language platform
• synthesizer

8

• Michael Brotzman

System Architect
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Architecture
Midium
Model
Disc
Midium Source Program
Controller
View
Output
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Controller
Controller
State Manager
Model
Midium Source Program
Interpreter
Lexer
Grammar
View
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Model
Model
Disc
Controller
DAO
View
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View
Controller
View
Effects Engine
Synthesizer
Model
Player
Output
13

• Mikhail Aronov

Language Guru
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File Types in Midium

.mm
.trk
.mp
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Source Program File

• Main.mm
• t open(track1.trk)
• while (t.realDuration gt 2.0)
• play(t)
• changeSpeed(t, .5)
• endwhile

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Track File

• track1.trk
• 0.0 2.0 file1.mp3
• 2.0 5.0 file2.mp3
• 0.0 3.0 /home/PLT/file3.trk
• 1.0 3.0 file4.wav

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Key Mapping File

• sample.mp
• a 0.0 file1.mp3
• b 2.0 file2.mp3
• c 0.0 /home/PLT/file3.trk
• d 1.0 file4.wav

Offset
18

• Jacquilene Jacob

Tester and Validator
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Program Functions

• system functions
• effect functions

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System Functions
Sample.mm t open(track1.trk) while
(t.realDuration gt 2.0) play(t) changeSpeed(t,
.5) endwhile

• stop
• print
• match
• contains
• wait
• startSynth
• stopSynth

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Effects
Sample.mm t open(track1.trk) while
(t.realDuration gt 2.0) play(t) changeSpeed(t,
.5) endwhile

• filter
• fade
• loop
• compress
• reverse

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Testing and validation
Test cases
Effects
System functions
Interpreter
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If you want to play with music
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• simple
• flexible
• powerful
• AND
• no semi-colons!