NQC: Music The RCX can play various prepackaged sounds using the function PlaySound(XXX); where XXX constants defined in NQC. Ref Braun Ch 3 p. 40 and.

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Presentation transcript:

NQC: Music The RCX can play various prepackaged sounds using the function PlaySound(XXX); where XXX constants defined in NQC. Ref Braun Ch 3 p. 40 and Braun Appendix D p373. NameDescription 0 or SOUND_CLICKShort beep 1 or SOUND_DOUBLE_BEEPTwo medium beeps 2 or SOUND_DOWNDescending arpeggio 3 or SOUND_UPAscending arpeggio 4 or SOUND_LOW_BEEPLong low note 5 or SOUND_FAST_UPQuick ascending arpeggio

More Music PlayTone(const frequency, const duration) This command plays a note with the given frequency for the specified duration. The frequency is in Hz, so 440 is the pitch of the A above middle C on a piano. The duration is in hundreths of a second. You can only specify integer values for the frequency, so don't expect the pitches to be exactly in tune. No one expects your little robot to sound like Pavorotti.

Welcome to Vibrationdata.com Piano Page Goldennumber.net Middle C

What should it sound like? Go to Track 6

The following example demonstrates this technique; it plays part of Quando men vo, from Giacomo Puccini's La Bohème #define SIXTH 12 #define HALF 3*SIXTH #define BEAT 2*HALF #define GRACE 2 task main() { PlayTone(330, 2*BEAT); Wait(2*BEAT + 2*SIXTH); PlayTone(115, SIXTH); PlayTone(208, SIXTH); PlayTone(247, SIXTH); PlayTone(330, SIXTH); PlayTone(311, 2*BEAT); Wait(4*SIXTH + 2*BEAT + 2*SIXTH); PlayTone(115, SIXTH); PlayTone(208, SIXTH); PlayTone(247, SIXTH); PlayTone(311, SIXTH); PlayTone(277, 3*BEAT); Wait(4*SIXTH + 3*BEAT + HALF); PlayTone(277, HALF); PlayTone(311, HALF); PlayTone(370, GRACE); PlayTone(330, HALF); PlayTone(311, HALF); Wait (2*HALF); PlayTone(277, HALF); PlayTone(330, HALF); PlayTone(220, HALF); PlayTone(220, 2*BEAT); Wait(GRACE + 5*HALF + 2*BEAT + HALF); PlayTone(247, HALF); PlayTone(277, HALF); PlayTone(330, GRACE); PlayTone(311, HALF); PlayTone(277, HALF); Wait (2*HALF); PlayTone(247, HALF); PlayTone(311, HALF); PlayTone(208, HALF); PlayTone(208, 2*BEAT); Wait(GRACE + 5*HALF + 2*BEAT + HALF); }