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Topic: Images from sound visa versa (Read 171 times) |
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Torro
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Images from sound visa versa
« Thread started on: Aug 3rd, 2015, 08:37am » |
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http://photosounder.com/
Would something like this be possible using the standard basic commands available or with minor extentions to libraries?
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DDRM
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Re: Images from sound visa versa
« Reply #1 on: Aug 4th, 2015, 09:11am » |
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Hi Torro,
Hmmm. This one looks right up Richard's street, but unfortunately I understand that he has resigned from the group, at least temporarily.
I guess the short answer would be "yes" - you can load both sound files and image files into memory and reference them. In the manual, under "playing WAV files", it describes how to load a file into memory. If you know the header structure etc it should be straightforward to access the sound data, and use it to construct images which you could then manipulate.
You might want to put the images into DibSections, so you can access the memory directly - see here:
http://bb4w.wikispaces.com/Direct+screen+memory+access
That lot all takes you a little outside standard BB4W, but not far.
Having said all that, I don't think it's going to be a trivial exercise, and may not run fast enough, because won't you need to use Fourier transforms to convert the wav data into frequencies for display? That's something Richard would be very comfortable with (indeed, FFTW2DLL.DLL is available somewhere on the Yahoo group), and if it's in your skillset then you might be well in!
Hope that's helpful.
Best wishes,
D
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David Williams
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Re: Images from sound visa versa
« Reply #2 on: Aug 4th, 2015, 09:45am » |
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on Aug 4th, 2015, 09:11am, DDRM wrote:| Hmmm. This one looks right up Richard's street, but unfortunately I understand that he has resigned from the group, at least temporarily. |
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Any idea why?
David.
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