musical notes using sound()

This is a discussion on musical notes using sound() within the A Brief History of Cprogramming.com forums, part of the Community Boards category; where can I find info on using the sound() and delay() to produce musical notes?...

  1. #1
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    musical notes using sound()

    where can I find info on using the sound() and delay() to produce musical notes?

  2. #2
    Disagreeably Disagreeable
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    Are you wanting to know how to use them, or how you can use them to make musical notes?

  3. #3
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    I want to know how to use them to make musical notes.

  4. #4
    Intranasal Heroin User Xterria's Avatar
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    ok. sound() will always go until it is stopped. you stop sound() with nosound(). But if you put them right under another you will get no sound:

    /////
    sound();
    nosound();
    //////

    but if you put delay() between them, the sound will last longer.

    ////
    sound(600);
    delay(1000);
    nosound();
    /////
    this will play a semi-high pitch sound for one second.
    It is best if you create a function for it:
    //////
    int music(int pitch, int time)
    {
    sound(pitch);
    delay(time);
    nosound();
    return(0);
    }
    /////
    so then you can use it like this:

    /////
    int main()
    {
    music(600,1000);
    return 0;
    }
    ////

    which will produce the same sound.
    Simple enough?

  5. #5
    Evil Member
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    So does anyone know the frequencies of musical notes?

    Additionally, does anyone know if it is possible to overlay one frequency of sound with another?

  6. #6
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    Yes, but I was looking for a table of some sort that listed all that information for all of the notes(C,C#,A,etc). I've been studying another language called Turing. It has a function called play() that accepts a string. So play("AB>C<") would play normal A,B, and a high pitch Middle C.

  7. #7
    Budding Synth Programmer samGwilliam's Avatar
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    There is a problem in doing this. A is 440 Hz and every other incarnation of A (in other octaves) is 440 * a power of 2 (880, 1760, etc). This also works in the other direction (220, 110, etc). This applies to every note, therefore the problem is that a semitone (distance between 2 adjecent notes) is different for each adjecent pair. It is in fact logarithmic. Unless you can find some sort of table you are going to have trouble.
    MSVC++ 6.0

  8. #8
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    I've found a table on this page:
    http://www.phy.mtu.edu/~suits/notefreqs.html

    But the frequencys contains decimals. So how would I use that with sound()?

  9. #9
    Budding Synth Programmer samGwilliam's Avatar
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    Well round them off, silly!
    MSVC++ 6.0

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