Theme: Multimedia Sound ProductionUFCFY5-30-1 Multimedia Sound Production.

Theme: Multimedia Sound ProductionUFCFY5-30-1

Multimedia Sound Production

Theme : Multimedia Sound ProductionMultimedia Studio UFCFY5-30-1

Motivation for Sound Production

Need to record audio in-house Voice over Short pieces for movie shorts Sound clips for multimedia

Produce original material and own the copyright

Theme: Multimedia Sound ProductionUFCFY5-30-1

Multimedia Sound Production

Basic Components for Sound Production


Basic Setup

Computer running music software application

USB cable

MIDI Keyboard

Sound output from built-in speakers


Basic Setup

Computer running music software application ‘Digital Audio Workstation’ (DAW)

USB cable

MIDI Keyboard

Sound output from external speakers and / or headphones


Software Sequencer : Logic Studio


Software Sequencer : Pro Tools


Pro Tools Mixer


MIDI Keyboard Sizes

49 Keys = 4 Octaves

61 Keys = 5 Octaves

25 Keys = 2 Octaves

88 Keys = 7 Octaves


The Transpose Octave switch can map keys to other zones of an 88 note keyboard

Thus a smaller keyboard can still access all of the available 88 notes


MIDI 49-note Keyboard mapped to pitch values C1..C5

C1 D1 E1 F1 G1 A1 B1

Middle C

C2 D2 E2 F2 G2 A2 B2C3 D3 E3 F3 G3 A3 B3 C4 D4 E4 F4 G4 A4 B4 C5

Theme : Multimedia Sound ProductionMultimedia Studio UFCFY5-30-1Middle C


Audio Interfaces


External Audio Interface

Solution for mobile computer Superior sound quality Distribute system resource loading improving performance of overall

system Better connectivity Modules with USB BUS power provide for field recording


MIDI Concepts

MIDI is an acronym for Musical Instrument Digital Interface

MIDI is a set of agreed protocols and device connectivity standards established in 1983

Provides for a common interconnection of music equipment and other devices

Provides the framework for real-time capture and playback of musical data

MIDI devices transmit and receive messages that each device will interpret and respond to accordingly based on the MIDI protocol


MIDI Setups


MIDI Architecture

The MIDI architecture consists of channels, messages and program numbers mapped to ‘voices’

A voice is a sound featured in a sound module MIDI can be considered to have three distinct layers The device layer - hardware, cables, foot switches The communication layer - channels and messages The music layer - actual voices and sound quality of the

voices produced by hardware and software tone generators

The music layer is ‘what your hear’


MIDI Messages


MIDI Messages

MIDI messages transmitted on channels 1..16 MIDI can thus communicate with 16 devices Devices could include keyboard, sound module drum machine,

and DAW Channel 10 reserved as the drum channel MIDI can play several sounds ‘voices’ on a sound module where

the sound module is multi-timbral - able to play more than one sound simultaneously - each voice would be mapped to a particular MIDI channel


MIDI Messages

Note on, Note off Pitch A B C D E F G (MIDI values start from 21 in the bass to 108 in the

treble for an 88 note keyboard) where 60 = middle c Sharp or flat Velocity Pedal and foot switch information

Soft (uno corda) Sostenuto Sustain

Note bend Modulation System Common Messages - send same data to number of devices System Exclusive Messages - manufacturer specific messages to access

a particular custom voice or function provided by manufacturer


MIDI Setups


General (GM) MIDI

An agreed set of protocols manufactures must implement The mapping of program numbers to voices (patches) Establishes 128 (0..127) mappings between program

number and voice type,e.g. program 0 = acoustic piano

The GM percussion map implements a standard drum kit mapped to keys ranging from B0 through to A4


References

References

MIDI Keyboards and Audio Interfaces http://www.m-audio.com

Theme: Multimedia Sound ProductionUFCFY5-30-1 Multimedia Sound Production.

Documents

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