PlaySound Command

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PlaySound[ <Note>, <Duration>, <Instrument> ]
Plays a MIDI note.
Note is an integer from 0 to 127 that represents a musical note given by the table below. When note = 60 a Middle C is played.
Duration is the time to play the note in seconds.
Instrument is an integer that represents the synthesized instrument used to play the note. See technical specifications at midi.org for possible instruments.
Most instruments are supported, but there are differences between computer platforms.
MIDI Notes
Octave C C# D D# E F F# G G# A A# B
0 0 1 2 3 4 5 6 7 8 9 10 11
1 12 13 14 15 16 17 18 19 20 21 22 23
2 24 25 26 27 28 29 30 31 32 33 34 35
3 36 37 38 39 40 41 42 43 44 45 46 47
4 48 49 50 51 51 53 54 55 56 57 58 59
5 60 61 62 63 64 65 66 67 68 69 70 71
6 72 73 74 75 76 77 78 79 80 81 82 83
7 84 85 86 87 88 89 90 91 92 93 94 95
8 96 97 98 99 100 101 102 103 104 105 106 107
9 108 109 110 111 112 113 114 115 116 117 118 119
10 120 121 122 123 124 125 126 127


PlaySound[ <Note Sequence>, <Instrument> ]
Plays a sequence of MIDI notes using the specified Instrument (see above).
"Note Sequence" is a string of character commands given in the table below.
Character Command
A-G Musical note. For sharps and flats add b or #
+ Move up one octave.
- Move down one octave.
/n Note length
/1 whole note
/2 half note
/4 quarter note (default)
also /8, /16, /32, /64
> Louder
< Softer
. Rest for current note length
Space Play the previous note or notes.
Notes not separated by space are treated as chords and are played at the same time.
Example: PlaySound["/4CEG /1. /8A B C -A B C ", 0]
This plays a quarter note chord CEG; rests for a whole note; plays the eighth notes A, B, C; plays them again one octave lower.


PlaySound[ <File> ]
Plays a MIDI file with extension .mid. "File" is the directory path to this file.


PlaySound[ <Function>, <Min Value>, <Max Value> ]
Plays a sound generated by Function, a time-valued function with range [-1,1]. The time units are seconds and the sound is played from time Min Value to Max Value. Sound is generated by 8-bit samples taken at a rate of 8000 samples per second.
Example: PlaySound[sin(440 2Pi x), 0, 1]
This plays a pure sine wave tone at 440 Hz (musical note A) for one second.


PlaySound[ <Function>, <Min Value>, <Max Value>, <Sample Rate>, <Sample Depth> ]
Plays a sound generated by Function, a time-valued function with range [-1,1]. The time units are seconds and the sound is played from time Min Value to Max Value. The sampling method is specified by "Sample Depth" and "Sample Rate".
"Sample Rate" is the number of sample function values taken each second. Allowable values are 8000, 16000, 11025, 16000, 22050, or 44100
"Sample Depth" is the data size of a sample in bits. Allowable values are 8 and 16.


PlaySound[ <Boolean Play> ]
Pause or resume play.
PlaySound[true] = play, PlaySound[false] = pause.
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