Create sound of specific pitch
Blitz3D Forums/Blitz3D Beginners Area/Create sound of specific pitch
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Just wondering if there is any way of simply creating and playing a sound of a specific pitch without having to load a *.wav file. Via DirectX? I would like to play a tune as per piano and set sound to respond to key inputs. Help and Thanks Jules |
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Not through blitz as far as I'm aware. You could create a nice simple wav of a sine wave a a specific pitch. I was doing something like this with a tracker I was writing for blitz... this code might help: .frequencies ; C C# D D# E F F# G G# A A# B Data 065.4,069.3,073.4,077.8,082.4,087.3,092.5,098.0,103.8,110.0,116.5,123.5 Data 130.8,138.6,146.8,155.6,164.8,174.6,185.0,196.0,207.7,220.0,233.1,246.9 Data 261.6,277.2,293.7,311.1,329.6,349.2,370.0,392.0,415.3,440.0,466.2,493.9 Data 523.3,554.4,587.3,622.3,659.3,698.5,740.0,784.0,830.6,880.0,932.3,987.8 ;root note is 34 - A2 ; notes go from C0 to B7 Restore frequencies Dim frequency#(95) For n=0 To 47 Read freq# frequency(n)=freq/440 frequency(n+48)=(freq*16)/440 Next This will leave you with a multiplier for your frequencies depending on what note you want to play. The root note being A2 (note 34) which would give you a multiplier of 1. |
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I would guess tapping into a midi-bank might be the way to go for this |
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You could also load on single wav and use the Robs frequencies table to shift the pitch. Currently there is no known way to create a sound without to use the Loadsound Command. Well, maybe you could use the PC-Speaker Beep Library. |
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YAY! Speccy sound effects here we come!!! |
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Dear all of above, Thanks for your help and advice. I think I will go the path of creating a single wav file of known pitch and using Rob's frequency table to shift the pitch. Seems the easiest way. Thanks again Jules |
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I messed up this ( http://www.blitzbasic.com/Community/posts.php?topic=35456 ) topic with some related stuff. |