DAV Chap2 Part2 Jul2009

8/8/2019 DAV Chap2 Part2 Jul2009

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IMD20503 Digital Audio and Vi

Sound Rec ordingPar t 2Copyright Issues

Hardware and software considerationsFile formats


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Sof t w are Cons iderat ionsSoundEdit Pro

SoundEdit Pro is a digital audio editor for a user-

friendly price.

It's the perfect program for home studio recording andfor people who are just getting started with audio

editing.

SoundEdit Pro provides an intuitive, easy-to-use

interface and is designed for the everyday user.

It has dozens of amazing audio effects and tools forconverting audio files into different formats, including

MP3, WMA, WAV, Ogg Vorbis and many others.


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Sof t w are Cons iderat ionsSoundEdit Pro

Use SoundEdit Pro to record your own music, voice o

other sounds, import and export lots of audio files

formats, including Windows PCM (WAV), MP3, OggVorbis, WMA 9 and AIFF

Play, mix and edit audio files visually using Cut, Copy,

Paste and applying more than 20 effects and filters,including: Cut, Paste, Move, Delete, Fadein/Out ,

Crossfade, Vibrato, Delay, Normalize, Fade, Flanger,

Amplify, Invert, Insert Silence, and more.


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Sof t w are Cons iderat ionsSoundEdit Pro Main Sc reen


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Sof t w are Cons iderat ionsSoundEdit Pro Cont rol , Mark ers, Effec t s


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Sof t w are Cons iderat ionsSoundEdi t Pro Out put Form at Set t ings


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Sof t w are Cons iderat ionsGoldWave

Developed by : Gold Wave Inc.

Latest release : 5.25 June 2008

OS : Windows

Type : Digital audio editor


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Sof t w are Cons iderat ionsGoldWave

top rated, professional digital audio editor.

the most advanced and complete audio editor available inits price range.

It includes all of the common audio editing commands andeffects, plus powerful built-in tools such as a batchprocessor/converter, a CD reader, and audio restoration

filters that cost extra in other similar programs. Comprehensive, easy to use, and efficiently engineered,

GoldWave offers the best value in audio editing software.

With over 10 years of development and widespread usage,it has an excellent and unmatched track record.


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Sof t w are Cons iderat ionsGold Wave - Feat ures

Play, edit, mix, and analyze audio Record audio from cassettes, vinyl records, radio, etc.

through your computer's line-in

Record dictation through a microphone or play dictationback at a slower speed for transcription (with foot pedalcontrol)

Record and edit audio for podcasting or telephone systems

Apply special effects, such as fade, equalizer, doppler,mechanize, echo, reverse, flanger, and more Digitally remaster and restore old recordings with noise

reduction and pop/click filters

Make perfect digital copies of audio CD tracks using the CReader tool and save them in wav, wma, mp3, or ogg files

Edit music for dance programs, figure skating, gymnastics

Analyze human speech, bird song, whale song
http://www.goldwave.com/features.php#CDReaderhttp://www.goldwave.com/features.php#CDReader


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Sof t w are Cons iderat ionsGold Wave - Feat ures

Demonstrate digital signal processing with filtereffects and the Expression Evaluator tool

View a variety of real-time visuals and level meters

Convert files to/from different formats, such as wa

wma, mp3, ogg, aiff, au, vox and even raw binarydata

Expand functionality with plug-ins

Command line processing
http://www.goldwave.com/plugins.phphttp://www.goldwave.com/features.php#Evaluator


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Sof t w are Cons iderat ionsGoldWave Main I nt er fac e


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Sof t w are Cons iderat ionsGold Wave Too l Menu


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Sof t w are Cons iderat ionsGold Wave Propert ies Wind ow


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Sof t w are Cons iderat ionsAdobe Audi t ion

Formerly Cool Edit Pro

A digital audio editor computer program featuring both

multitrack, non-destructive mix/edit environment and adestructive approach waveform editing view.

Developed by : Adobe Systems

Latest release : 3.0 Nov 2007

OS : Windows XP SP2 and Windows Vista



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Multi-track view record and mix with a new, powerful

low-latency mixing engine

Mixer

Move volume, pan, andeffects controls as listening,and record changes to mixin real time


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Surround Encoder transform any multi-track mix into

a 5.1 surround sound experience Export the results as an

interleaved file that can be used inAdobe Premiere Pro software

Audio editing for video Edit the soundtracks for videos

created in Adobe After

Effects or Adobe PremierePro software with the EditOriginal and Edit in AdobeAudition features


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Mastering Rack in Edit View

Apply and preview multiple effectssimultaneously when working withfiles in Edit View.

Save frequently used rack settings

presets for convenient reuse.


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Sof t w are Cons iderat ionsWavePad Sound Edi t or - Feat ures

Supports a number of file formats including wav (multiplecodecs), mp3, vox, gsm, real audio, au, aif, flac, ogg and manymore.

Sound editing functions include cut, copy, paste, delete, insert,silence, autotrim and more.

Audio effects include, amplify, normalize, equalizer, envelope,

reverb, echo, reverse, sample rate conversion and more. Tools include spectral analysis (FFT) and speech synthesis.

Audio restoration features including noise reduction and click poremoval.

Supports sample rates from 6000 to 96000Hz, stereo or mono, 816, 24 or 32 bits.

Ability to work with multiple files at the same time in separatescreens.


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Sof t w are Cons iderat ionsWavePad Sound Edi t or - Feat ures

Includes its own CD ripper with 'ultrafast 'rip mode and

cddb music database lookup.

Links directly to the Express Burn CD Recorder to buryour sound files to CD.

Recorder supports autotrim and voice activated

recording.

Easy to use interface will get you started running.
http://www.nch.com.au/burn/index.html


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Sof t w are Cons iderat ionsBias Dec k 3 .5

Deck is an advanced digital audio workstation for music,audio-for-picture, Internet audio, 5.1 surround mixing, and

more. Sophisticated sound processing than SoundEdit and Sound

Forge, and truly professional results.

allows you to record a track while listening to another. Multitrack audio recording, editing, processing and mixing

best used for music files at 16-bit, 44KHz levels, which will

generate very large files, even for a 3-minute song.


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Can spot effects, edit dialogue, process soundtracks, recorADR-style voiceovers and craft complex mixes to stereo orcomplete 5.1 surround all while in perfect sync to a

QuickTime movie or DV clip. For music production, Deck 3.5 is a dream: It's stable,

capable, and sonically superb, with up to four realtime

effects plug-ins per track. Working in broadcast? Deck 3.5 is fast, easy, and a

remarkably cost-effective editing platform. And, its broad

range of audio tools include surround mixing, are perfectlysuited to multimedia development for video games, theWeb, presentations, or whatever.

http://www.bias-inc.com/products/deck/

S f C


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Multi-track editing

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S f t C id t i


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Sof t w are Cons iderat ionsAdobe Soundboot h

Adobe Soundbooth is a digital audio editor by Adobe

Systems for Mac OS X, Windows XP and Vista. Adobe

has described it as being "in the spirit of Sound Edit16and Cool Edit 2000".

Developed by : Adobe SystemsLatest release : CS4 March 2009

OS : X86(Intel processor only)

Type : Audio editor

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Adobe also has a more powerful program called Adob

Audition, but Soundbooth is not intended to replace

this. It is instead aimed at creative professionals who do no

specialize in audio or people who need a simple editin

program and do not require the full features of AdobeAudition.

The major difference in both of the programs is that

Soundbooth uses a task based interface and AdobeAudition uses a tool based interface.

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Interface

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Sof t w are Cons iderat ionsSound Forge 9

Formerly known as Sonic Foundry Sound Forge

A digital audio editing and creation suite aimed at the

professional as well as the semi-professional market.

Developed by : Sony Media Software

Latest release : 9.0.0.441 or 9.0e (Build 441) Feb 2008

OS : Windows


S f t C id t i


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The Sound Forge 9 professional digital audio

production suite includes everything you need to

quickly get from raw audio to finished master. Use this suite to create and edit stereo and

multichannel audio files with speed and precision.

Efficiently analyze, record and edit audio, digitize andrestore old recordings, model acoustic environments,

design sound for multimedia, and master replication-

ready CDs.

S f t C id t i


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Sof t w are Cons iderat ionsSound Forge 9 Main In t er fac e

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Stereo and Multichannel Recordin

has a complete set of tools forrecording audio.

Record straight into sound card orthe Record Timer to begin and endsession at a specific time and date.

can start recording when a certain

audio threshold is reached withThreshold Record Triggering.

can also record and edit multichanaudio files as easily as stereo files.

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Precise Audio Editing

Edit stereo and native multichannel

audio files down to the sample levereal time.

Use familiar Windows commands tcut, copy, paste, mix, and crossfad

audio. Drag and drop to edit between

channels, and work on one file whilprocessing others in the backgroun

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Powerful Effects Processing Apply over 40 professional studio

effects and processes including

Normalize, EQ, Delay, Chorus,Volume, Dynamics, Noise Gate, PitchShift, Flange, and Vibrato.

Chain multiple effects together andapply them to selections or entire files

using the Plug-in Chainer. Sound Forge 9 software also support

DirectX and VST effects, includingparameter automation, to expand the

number of effects you can apply toaudio and increase your masteringflexibility.

Sof t w are Cons iderat ions


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Audio-for-Video Sound Forge 9 software supports

multiple video formats including AVI,

WMV, and MPEG-1 and MPEG-2.Synchronize audio and video frameby frame.

Import Flash (SWF) files** to visuallysynchronize your audio to your

project. Sound Forge 9 software includes

MPEG-2 templates for writing HDV-compliant files at both 720p and 1080

resolutions. Also included are templates forencoding WMV 720p and 1080p.

**ActionScripting, motion video, and audio not supported



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Sof t w are Cons iderat ionsSoundt rac k Pro

A music composing and audio editing application whic

includes a collection of just over 5000 royalty free

professionals instruments loops and sound effects.

Developed by : Apple Inc.

Latest release : 2.0.2 Nov 2007

OS : Mac OS X

Type : Digital Music Creator and audio editor



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Sof t w are Cons iderat ionsSoundt rac k Pro



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Sof t w are Cons iderat ionsAc id Pro

A professional Digital Audio Workstation (DAW)

software program

Popular among composers, producers and DJs.

Developed by : Sony Creative Software

Latest release : 6.0

OS : Microsoft Windows

Type : Digital Audio Workstation



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Sof t w are Cons iderat ionsPro Too ls

Widely used by professionals throughout the audioindustries for recording and editing in music production

film scoring, television and post production.

Has 3 types of systems : HD, LE and M-powered.

Developed by : Digidesign

Latest release : Pro Tools HD/LE 7.4 Nov,2007

OS : Mac OS X, Windows XPType : Digital Audio Workstation



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Sof t w are Cons iderat ionsCak ew alk Sonar

A computer program used for recording, editing, mixin

mastering and outputting audio.

Features:Record and manipulate multitrack digital audio

Record and manipulate MIDI data

Apply special effects, such as reverb and delay

Automate the process of mixing audio

Utilize virtual instruments, such as softwaresynthesizers, software samplers, software drum

machines.



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Developed by : Cakewalk

Latest release : Sonar Home Studio 6, HomeStudio 6 XL, 7 Studio Edition, 7 Studio ProducerEdition and LE.

OS : Windows XP, Windows VistaType : Host/Digital Audio Workstation



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Sof t w are Cons iderat ionsSt einberg Cubase

A computer program for music production.

It offers recording, producing and mixing of sounds in

order to make music production for distribution on CDsor Internet.

Most of the facilities in recording studios are now

available for using Cubase or other similar products.

It is a series of MIDI, music sequencer and digital audi

editing computer applications.



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Developed by : Steinberg

Latest release : Cubase 4.1 Oct 2007

OS : Windows XP, Mac OS X

Type : Digital Audio Workstation



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Sof t w are Cons iderat ionsLogic Pro

Use Logics audio engine

A consumer-based version called Logic Express is

available with the same interface and audio engine butwith reduced features.

Another application using Logics audio engine is

GarageBand bundled in iLife that comes with any newMacintosh computer.


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Fi le Form at s


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1. Audio Interchange File Format file extension AIFF, AIF

used by Macintosh, IBM compatibles, Commodore

Amiga and Silicon Graphics machines. A large number of sampling rates (up to 32 bits) are

supported.

2. Musical Instrument Digital Interface

file extension MID, MDI, MFF

internationally accepted file format is used to store MIDdata.

Fi le Form at s


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Fi le Form at s

3. Resource Interchange File Format

file extension RIFF

developed by Microsoft and can contain a variety of miof data including digital audio (WAV,AIF and other filesand MIDI in a portable format.

4. Sound file extension SND

Alternative file extension to AIF.

developed by Apple and is limited to a sampling rate o8 bits

Fi le Form at s


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Fi le Form at s

5. Wave file extension WAV

The standard audio file format on Windows

applications. developed by Microsoft as a subset of the RIFF format

capable of sampling rates of 8,16 and 24 bits (mono

and stereo).6. Sun Audio

file extension AU

developed and used by Sun Microsystemsworkstations

Sun audio is a 16-bit compressed audio format

used on the Internet

Fi le Form at s


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Fi le Form at s

7. Compact CD Audio file extension CDA

format for audio files on CD

8. Mpeg layer 3

file extension MP3

a compression type for audio file

9. RealAudio or RealMedia

file extension RA, RM or RAM

suitable for audio streaming over the Internet developed by RealNetworks Inc.

Requires a Real player or browser plug-in for playback

Fi le Form at s


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Fi le Form at s

10. eXtensible Music Format file extension XMF

A music specific evolution of XML(eXtensible Markup

Language). A metadata file type and contains MIDI files, rich medi

files, samples and so on.

Metadata is data about data such as XMF and XML,which is embedded into differing technologies. The useof metadata allows different data sets, computing

platforms, databases and mobile technologies to shareinformation and communicate. In an audio environment,it means packets of different data types including MIDI,samples, etc can be sent to any compatible device.

Fi le s ize c a lc u la t ion


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File Size= Sampling rate(KHz) x duration(sec.) x(bit resolution[bit]/8)(byte) x channel(mono/stereo)

Calculation to determine file size in kilobytes:

Formula

Guide :Quality audio for CD is 44.1KHz, 16 bits and stereo

Quality audio for radio is 22.05 KHz, 8 bits and monoQuality audio for speaking is 11.025KHz, 8 bits and mono



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Example:

Calculate the file size for 1 minute sound, using the

attributes of 44.1 KHz, 16 bit stereo.

File Size = 44.1 KHz x 60 sec x 2 bytes x 2

= 10,584 KB / 1000 (1MB = 1000 KB)

= 10.584 MB



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Example:

Calculate the file size for 3 minutes sound, using the

attributes of 22.1 KHz, 16 bit mono.

File Size = 22.1 KHz x 180 sec x 2 bytes x 1

= 7956 KB /1000 (1MB = 1000 KB)

= 7.956 MB


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DAV Chap2 Part2 Jul2009

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