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Playing sounds and Music

Logo allows the user to play music, sounds using the following statements

-         TONE or SOUND

-         SOUNDON

-         SOUNDOFF

-         PLAYWAVE


The TONE or SOUND statements allow the user to play music on the pc speaker.

The syntax is as follows:

SOUND [pitch duration]

or

TONE pitch duration

Example:

SOUND [40 100]

TONE 40 100

The SOUNDON & SOUNDOFF statements are used simultaneously. The difference between the SOUNDON and SOUND statements is that SOUNDON plays a sound for an undetermined time until a SOUNDOFF statement is issued.

 


 

The example below plays the melody: “Au Clair De La Lune”.

TO music

startup

PLAY [C 500]

PLAY [C 500]

PLAY [C 500]

PLAY [D 500]

PLAY [E 1000]

PLAY [D 1000]

PLAY [C 500]

PLAY [E 500]

PLAY [D 500]

PLAY [D 500]

PLAY [C 1500]

 

END

 

TO PLAY :SONG

IF EMPTY? :SONG [STOP]

IF EMPTY? BF :SONG [STOP]

TONE THING FIRST :SONG FIRST BF :SONG

PLAY BF BF :SONG

END

 

TO startup

MAKE "a 881

MAKE "b 988

MAKE "c 523

MAKE "d 587

MAKE "e 659

MAKE "f 698

MAKE "g 784

MAKE "c2 1047

MAKE "REST 0

END

 

 

The PLAYWAVE statement

 

The PLAYWAVE statement plays a wave file.

 

Example:

 

PLAYWAVE "c:\\windows\\media\\tada.wav 0

 


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