MIT SCRATCH COURSE
sound editor
Sound Editor
Use the Sound editor to add and edit existing sounds, and to record your own sounds.
Creating sounds
Add a sound to a sprite or the Stage
Select the sprite that you want to have the new sound, then select the Sounds tab. Each sprite starts with a default sound:
Scratch has a library of sounds that you can add to your sprites. Click on the Choose a Sound icon to open the Sound Library:
To play a sound, hold your mouse cursor (or your finger, if you are using a tablet) over the Play icon:
Click on any sound to add it to your sprite. You will be taken straight back to the Sounds tab and you will be able to see the sound that you have just added:
If you switch to the Code tab and look at the Sound blocks menu, you will be able to select the new sound:
Tip: You can also add sounds to the Stage.
Record a sound
Select the sprite that you want to have the new recorded sound, then select the Sounds tab:
Go to the Choose a Sound menu and select the Record option:
When you are ready, click the Record button to start recording your sound:
Click the Stop recording button to stop recording your sound:
Your new recording will be shown. You can Re-record your sound if you are not happy with it.
Drag the orange circles to crop your sound; the part of the sound with a blue background (between the orange circles) will be the part that is kept:
When you are happy with your recording, click the Save button. You will be taken straight back to the Sounds tab and you will be able to see the sound that you have just added:
If you switch to the Code tab and look at the Sound blocks menu, you will be able to select the new sound:
Editing sounds
Edit whole sounds or parts of sounds.
Reverse a sound
Reversing sounds are useful for creating special effects, for example the Slide whistle sound makes a good shrinking effect, so reversing it makes the perfect growing effect!
Add or record a sound.
Click on the Reverse icon to make the sound play backwards. You will see the sound wave reverse.
Tip: To keep both the original version and the reversed version of the sound, right-click (or tap and hold) on the original sound and choose ‘duplicate’.
Crop a sound
Select the sound to be edited.
Choose a starting position for your edited sound on the sound wave then left-click and hold. Drag your mouse pointer to the new end position for your sound and release. You will see a highlighted area on the sound wave.
If you are using a tablet using your mouse or finger to tap and drag over the sound wave.
Use the sound editor tools to Copy, Copy to New, Paste or Delete the highlighted section of the sound.
Tip: You can use the Undo tool to reverse any changes you are not happy with.
Change sound effects
The sound editor has tools to change the speed, volume and fade effects of a sound – you can also make it robotic!
To apply an effect to the whole sound click on a sound effect tool below the sound wave:
Click on the sound effect tools as many times as you like as each time it will apply the effect again.
To apply an effect to part of a sound, choose a starting position for your effect on the sound wave then left-click and hold.
Drag your mouse pointer to the effect end position and release. You will see a highlighted area on the sound wave.
If you are using a tablet using your mouse or finger to tap and drag over the sound wave.
Click on a sound effect tool. The sound wave will update and you can play your new sound:
