||THE HYPERCARD CENTER
Note: This is a work in progress and will be formatting errors. Read more about the project on the home page.
play sound notes
play sound tempo posInteger
play sound tempo posInteger notes
play command plays a sound or a series of notes using a sound through the speaker of the Macintosh (or through the audio jack if it’s in use).
Play stop stops the current sound immediately; otherwise, the sound plays until it’s done and stops by itself.
Important: HyperCard continues to run handlers and perform other actions while a sound plays. Use the command
wait until the sound is done to stop a handler until the sound is done playing.
The text string
notes is an unlimited sequence of words in which each word represents one note. A note has the following NAOD format (Name, Accidental, Octave, and Duration):
Name one of these letters:
a, b, c, d, e, f, g, r
(where r = rest)
Accidental one of these characters:
Octave a positive integer
(4 is middle C)
Duration one of the letters:
w, h, q, e, s, t, x
w = whole note
h = half note
q = quarter note
e = eighth note
s = 16th note
t = 32nd note
x = 64th note
You don't have to specify the accidental, octave, or duration of a note. Initially, the accidental defaults to none. The octave and duration default to the same values as the previous note, or to
4 (octave) and
q (duration) for the first note.
Specify the note r to get a rest. For example:
re --eighth note rest
A duration followed by a period (.) means a dotted note. A duration followed by the number 3 means one note of a triplet.
HyperCard can also play digitized sounds stored as 'snd ' resources. Use
play with the name of the resource as the sound. The resource must appear in the current stack, a stack being used, or the Home stack.
HyperCard requires more RAM to play large digitized sounds—about 22K for every second the sound plays.
If HyperCard can't find the sound or load it into memory,
the result gets
Couldn't load sound. If the volume is set to 0, if an XCMD is using the sound channel, or if HyperCard is running in the background,
the result gets
Sound is off.
play "Moo" -- if you have installed this sound into a stack
play "boing" "c e f f# g f e d c"
play "boing" tempo 150 "c e f f# g f e d c"
An expression that evaluates to a text string and that is also the name of a digitized sound.
flute are provided with HyperCard.
"my digitized sound"
An expression that evaluates to a text string that is also a sequence of notes.
Each word of the string is a separate note. Each note has a name and an optional accidental, octave, and duration. For example:
"c#4q" -- single note
"c d e f g a b c5"
"f#5w c#3e a#4w"
"cq f. fe fw"
An expression that evaluates to a positive integer.
67 mod 13
the number of bg fields
the number of backgrounds
the number of cards div 2
background, bkgnd, button, card, chunk,
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