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A '''sound''' is an item that can be played in a [[Scratch]] [[project]], available by importing or using from Scratch's sound library. Sounds are played by using the [[Sound Blocks]], which control a sound's [[Volume (value)|volume]], [[Tempo (value)|tempo]] and so on forth.
 
A '''sound''' is an item that can be played in a [[Scratch]] [[project]], available by importing or using from Scratch's sound library. Sounds are played by using the [[Sound Blocks]], which control a sound's [[Volume (value)|volume]], [[Tempo (value)|tempo]] and so on forth.
 
==Sounds and notes==
 
==Sounds and notes==
All noises played in a project divide into two types:[[File:The_Sounds_Tab.png|thumb|250px|Sounds can be managed in the Sounds Tab.]]
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All noises played in a project divide into two types, sounds and notes.[[File:The_Sounds_Tab.png|thumb|250px|Sounds can be managed in the Sounds Tab.]]
 
===Sounds===
 
===Sounds===
 
These are the items that are available only be importing or by summoning. These can be visited in the Sounds tab, where imported sounds can be played, imported, and deleted.
 
These are the items that are available only be importing or by summoning. These can be visited in the Sounds tab, where imported sounds can be played, imported, and deleted.
 
The following blocks control the playing of these sounds:
 
The following blocks control the playing of these sounds:
*[[Play Sound () (block)|Play Sound ()]]- Begins the sound and executes the rest of its [[script]], without waiting for the sound to finish playing.
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*[[Play Sound () (block)|Play Sound ()]] {{-}} Begins the sound and executes the rest of its [[script]], without waiting for the sound to finish playing.
*[[Play Sound () Until Done (block)|Play Sound () Until Done]]- Plays a sound, waits for it to finish playing, and will carry on with its script.
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*[[Play Sound () Until Done (block)|Play Sound () Until Done]] {{-}} Plays a sound, waits for it to finish playing, and will carry on with its script.
*[[Stop All Sounds (block)|Stop All Sounds]]- Cancels all sounds currently playing.
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*[[Stop All Sounds (block)|Stop All Sounds]] {{-}} Cancels all sounds currently playing.
*[[Set Volume to ()% (block)|Set Volume to ()%]]- Sets a sprite's volume.
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*[[Set Volume to ()% (block)|Set Volume to ()%]] {{-}} Sets a sprite's volume.
*[[Change Volume by () (block)|Change Volume by ()]]- Changes a sprite's volume by a given amount.
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*[[Change Volume by () (block)|Change Volume by ()]] {{-}} Changes a sprite's volume by a given amount.
  
 
===Notes===
 
===Notes===
These are not the same as the sounds mentioned before - they are not imported and are accessed easily from seven [[blocks]]. They are as fol[[File:Blocks_relating_to_notes.png|thumb|194px|Notes can be controlled with a variety of blocks.]]lows:
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{{main|MIDI}}
*[[Play Drum () for () Beats (block)|Play Drum () for () Beats]]- Plays the specified drum for a given amount of beats.
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[[File:Blocks_relating_to_notes.png|thumb|194px|Notes can be controlled with a variety of blocks.]]These are not the same as the sounds mentioned before {{-}} they are not imported and are accessed easily from seven [[blocks]]. They are as follows:
*[[Play Note () for () Beats (block)|Play Note () for () Beats]]- Plays a given note from an instrument chosen in other blocks.
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*[[Play Drum () for () Beats (block)|Play Drum () for () Beats]] {{-}} Plays the specified drum for a given amount of beats.
*[[Set Instrument to () (block)|Set Instrument to ()]]- Sets the current instrument to one selected from a drop-down menu.
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*[[Play Note () for () Beats (block)|Play Note () for () Beats]] {{-}} Plays a given note from an instrument chosen in other blocks.
*[[Set Volume to () (block)|Set Volume to ()]]- Sets a sprite's volume.
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*[[Set Instrument to () (block)|Set Instrument to ()]] {{-}} Sets the current instrument to one selected from a drop-down menu.
*[[Change Volume by () (block)|Change Volume by ()]]- Changes a sprite's volume by a given amount.
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*[[Set Volume to () (block)|Set Volume to ()]] {{-}} Sets a sprite's volume.
*[[Set Tempo to () bpm (block)|Set Tempo to () bpm]]- Sets a sprite's tempo (affects the "beat" speed).
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*[[Change Volume by () (block)|Change Volume by ()]] {{-}} Changes a sprite's volume by a given amount.
*[[Change Tempo by () (block)|Change Tempo by ()]]- Changes a sprite's tempo a given amount.
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*[[Set Tempo to () bpm (block)|Set Tempo to () bpm]] {{-}} Sets a sprite's tempo (affects the "beat" speed).
*[[Rest for () Beats (block)|Rest for () Beats]]- Plays a rest for a given amount of beats.
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*[[Change Tempo by () (block)|Change Tempo by ()]] {{-}} Changes a sprite's tempo a given amount.
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*[[Rest for () Beats (block)|Rest for () Beats]] {{-}} Plays a rest for a given amount of beats.
  
 
==Accessibility==
 
==Accessibility==
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To obtain these, one has to view the Sounds tab of a [[sprite]]/[[stage]] and select the Import button. The user will be able to import sounds from their desktop or varying locations, including a sound library that comes with [[Scratch]].
 
To obtain these, one has to view the Sounds tab of a [[sprite]]/[[stage]] and select the Import button. The user will be able to import sounds from their desktop or varying locations, including a sound library that comes with [[Scratch]].
  
{{note|When a [[Wikipedia:Surround Sound|surround sound]] audio file is converted to mono, the surround channels are removed. This is due to Scratch's limitations with sound.}}
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{{note|When a [[Wikipedia:Dolby Surround|Dolby Surround Stereo]] audio file is converted to mono due to Scratch's sound limitations, the surround effect will be silenced instead.}}
  
 
===Notes===
 
===Notes===

Revision as of 19:01, 25 April 2012

This article is about sounds in the Scratch Program. For other uses, see Sound Blocks.

A sound is an item that can be played in a Scratch project, available by importing or using from Scratch's sound library. Sounds are played by using the Sound Blocks, which control a sound's volume, tempo and so on forth.

Sounds and notes

All noises played in a project divide into two types, sounds and notes.

Sounds can be managed in the Sounds Tab.

Sounds

These are the items that are available only be importing or by summoning. These can be visited in the Sounds tab, where imported sounds can be played, imported, and deleted. The following blocks control the playing of these sounds:

Notes

Main article: MIDI
Notes can be controlled with a variety of blocks.

These are not the same as the sounds mentioned before — they are not imported and are accessed easily from seven blocks. They are as follows:

Accessibility

Sounds

To obtain these, one has to view the Sounds tab of a sprite/stage and select the Import button. The user will be able to import sounds from their desktop or varying locations, including a sound library that comes with Scratch.

Note Note: When a Dolby Surround Stereo audio file is converted to mono due to Scratch's sound limitations, the surround effect will be silenced instead.

Notes

These are available, even when the blocks that control them are not in use. They can be used simply by dragging out the wanted blocks and by activating them. Notes and their blocks cannot be deleted.

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