ocr nationals: unit 22 – creating sound using ict a03 – create an audio clip sound editing &...
TRANSCRIPT
OCR Nationals:Unit 22 – Creating Sound using ICT
A03 – Create an audio clip
Sound Editing & Effects
Introduction to sound editing
Professional sound editors:
• Clean up dialogue tracks
• Add layers of special effects
• Place sounds at certain times
• Cut out unwanted sections
• Mix in interesting sounds
• Cut pieces of vocals away or move them elsewhere
Sound Editing includes:
Cutting Placing Fading Moving Duplicating Adjusting volume of audio material Mixing is also a form of editing often combining
two or more sounds files together
Introduction to effects:
Effects are applied using the Effect menu
To apply an effect, you must select part or all of a track first
To select the entire track click in the grey area of the Track Control Panel below the sliders
Some effects have a preview button in the Effect dialogue box
Introduction to effects:
Audacity has over 25 effects
Always listen to the audio selection before you apply the effect and again after applying the effect
Use the undo button or edit – undo to undo any effects that don’t sound right
Create an audio clip
Trimming a track
Splitting a trim
SilencingCut,
Copy & Paste
Fading Changing Tempo
Amplifying Other Effects
Sound Editing
Applying Effects
Fading
• Fade in gradually increases the sound – the sound increases progressively
• Fade out gradually decreases the sound – the sound decreases progressively
To fade in or out:
• Highlight a selection of a track
• Effect Menu – Fade Out or Fade In
• Notice the change in the waveform
The ‘change tempo’ effect will change the length of the selected audio
The speed of the audio can be increased or decreased without changing the pitch
This effect can be used to ‘slow down’ speech that is spoken too quickly
Changing Tempo
Amplifying
• Amplify changes the volume of the selected audio
• This effect can be used to increase or decrease the volume of the selection
• To reduce the volume: drag the slider so the amplification is a minus figure (below 0.00)
• To increase the volume: drag the slider so the amplification figure is above zero
Other Effects
Try other effects such as:
• Bass Boost
• Change Pitch
• Change Speed
• Noise Removal
• Normalise
• Repeat
Trimming a track
When a track is trimmed, everything to the left and right of the selection is removed
To trim a track:
• Use the selection tool to select the part of the track to be kept
• The area outside the selection will be removed
• Play the selection to make sure that the selection is the part you want to keep
• Edit –Trim
When a track is spilt, the selected part of the track is moved to its own track, replacing the original selection with silence
To split a track:
• Use the selection tool to select the part of the track to be spilt
• Play the selection
• Edit - Split
Splitting a trim
Silencing
Silencing can be created in 2 ways:
1. Select part of a track and silence it
2. Insert a period of silence into an existing track
Silencing is represented as a straight line in the waveform
To silence part of a track:
• Highlight a selection
• Edit – Silence
To insert silence into a track:
• Generate – Silence – the Generate Silence dialogue box displays
• Enter a number in seconds
• Click the button for Generate Silence
Cut, Copy & Paste
To cut or copy part of a track:
• Highlight a selection
• Edit – Cut or Edit – Copy
To paste a copied selection into an existing track:
• Edit – Paste
To paste into a new track:
• Project – New Audio Track – Edit - Paste