Multimedia Audio Editing
Multimedia Audio Editing
This document details the syllabus for ECDL Multimedia Module 1 – Audio Editing. The
syllabus describes, through learning outcomes, the knowledge and skills that a candidate
for ECDL Multimedia should possess. The syllabus also provides the basis for the theory
and practice-based test in this module.
The official version of the syllabus for ECDL Multimedia Version 1.0 can be found on the
web site, and it was released in 2011.
Copyright © 2013 AICA –
Associazione Italiana per l’Informatica ed il Calcolo Automatico
All rights reserved. No part of this publication may be reproduced in any form except as
permitted by the AICA. Enquiries for permission to reproduce material should be directed
to the publisher.
Copyright © 2013 AICA
Multimedia Module 1 – Audio Editing
The Audio Editing module requires the candidate to understand the basic principles of digital audio
representation and to be able to perform different tasks on audio feeds (music, dialogue, noise). The
candidate shall be able to use programs for digital audio processing, suitable for soundtracks to be used on
multimedia projects.
1.1 Basic concepts
1.1.1 Digital audio
Define the parameters of musical sound :
pitch, loudness, sustain, timbre.
Define and understand the characteristics of
sound waves and the way they are
Understand the relationship between pitch
and vibration frequency, loudness and
vibration amplitude, the timbre of a musical
instrument and harmonic sounds.
Understand the meaning of “signal-to-noiseratio” (SNR), dynamics and distortion.
Understand the difference between analog
audio signals and digital audio signals.
Define the sampling operations and the
quantization process of a signal.
Understand the concepts of sample rate, bit
Define the effect of aliasing, the signal-toquantization-noise ratio (SQNR), the ratio
between the number of bits used and
Understand compressed and uncompressed
audio formats and describe their usage.
Understand the main features of MIDI
Identify the current MIDI controllers: CC1,
CC5, CC7, CC10, CC11, CC64.
Know the different ways to connect a MIDI
device to a computer.
Define the elements of the musical language:
rhythm, melody and harmony.
Understand the main agogic accents (Italian
tempo marking ): “adagio”, “andante”,
“allegro”, “presto”, “rallentando”,
“accelerando”, “beats per minute” (BPM).
Identify the elements of musical scale: scale
step, whole tone, semitone, chromatic
alterations, musical intervals and modes.
1.1.2 The MIDI protocol
1.1.3 The musical
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1.2 Instruments
1.2.1 Software
1.2.2 Hardware
1.3 Production
1.3.1 Set up of a audio
production session
1.3.2 Live recording on
hard disk
1.3.3 Line in recording
through the use of a
software program
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Understand the concept of tonality and
Understand the main features of the most
popular software programs for audio
production and post-production, the
techniques for hard-disk recording and non
linear editing.
Identify the most appropriate software for
creation and modification of digital audio.
Identify a suitable configuration for a
computer to support audio production and
post-production: cpu, data bus, ram, internalexternal hard-disk drives.
Understand the characteristics and the
operation of an audio board.
Know how to operate microphones and
understand their polar patterns.
Know how to connect input and output audio
Identify the required tools for audio recording
like: cables, bars, boom operator, anti shock anti wind supports, pop-screen etc..
Set up the sample rate and the bit depth for a
session (project).
Create one or more audio a/o MIDI tracks
inside a session (project).
Set up one or more audio scores inside a
session (project).
Handle the connection of a recording
software programme with a microphone,
using the internal PC audio board or an
external audio board.
Record a vocal or instrumental audio score
using a microphone, setting up the most
appropriate input signal level.
Manage the difference between the
monitoring recording level and the real
recording level.
Import a motion picture without soundtrack to
an audio recording program and create the
dialogue replacement (dubbing) and/or the
background sound effects.
Connect electrical musical instruments
(guitars, keyboards etc.) to a recording
software program, using the internal audio
board to a PC or an external audio board.
1.3.4.MIDI recording
1.3.5 Musical production
1.4 Post-production
1.4.1 Editing
1.4.2 Optimization
1.4.3 Audio Mixing
1.4.4 Podcast production
Copyright © 2013 AICA
Record an instrumental audio feed using a
line input.
Set up the connection with MIDI and/or USB
electronic keyboards to play virtual
Record a MIDI musical sequence through the
use of MIDI connection and of virtual
Set up a session (project) to produce loopbased music, for basic parameters: BPM
(measure of tempo in music) and key
Dynamically modify tempo and key inside a
loop-based piece.
Move and resize the audio tracks over the
timeline eventually using a quantization grid.
Shorten, in tempo, a musical piece to produce
a loop-based audio feed, to be used as
musical background.
Perform fade-in, fade-out and cross-fade of
audio tracks.
Improve the dynamic range o fan audio feed
using specific plug-ins for gamma correction
and dynamic compression.
Improve the frequency response o fan audio
feed using plug-ins to provide equalization.
Use software filters (such as denoiser,
declicker, hum removal) to eliminate
background noise as ground noise, due to
AC, electrostatic click.
Be able to use the audio mixer elements:
gain, fader, pan-pot, master track, mute, solo.
Apply an effect to an audio track (ie. reverb,
chorus, delay).
Perform a static panning of audio feeds in
the audio mixing.
Perform dynamic panning o fan audio feed,
with reference to the displacement o fan
object present in a video previously imported.
Perform an audio mix with numerous tracks,
using standard reference intensity value (0
db) correctly managing the panning.
Produce a podcast in radio style, using
voice, background music and stingers.
1.5 Finalization
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1.5.1 Audio and
multimedia creation.
Produce a podcast episode synchronized to
a photographic sequence, using voice and/or
background music.
Produce a podcast episode synchronized
with a videocast, using background voice
and/or music.
Export an audio and/or MIDI sequence
(Bounce To Disk) to create a digital audio
uncompressed (Wave, AIFF) to be burned on
a CD.
Export an audio and/or MIDI sequence or
convert from an existing audio to create a
digital audio compressed (lossy compression:
MP3, WMA, AAC, M4a), to be used for
multimedia applications, or compressed for
archiving, (lossless compression: APE, CAF
and FLAC).
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