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TOPIC: Bug? Attenuation encoded with factor 25

Bug? Attenuation encoded with factor 25 1 month 1 week ago #1

  • Sven Thoennissen
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I am using the Mac version 2.2, and it seems the attenuation generator value is written to file with a dB factor of 25.
I wrote a test program that parses the igen chunk of a test soundfont, and a Polyphone value of 1 dB is encoded as 0x19 0x00 which is the little endian 16-bit value of 25.
According to the SF specification it should be a factor of 10.
Are there any plans to address this?

If this bug should be fixed, I imagine that all soundfonts saved with the „factor 25" version will be loaded incorrectly, causing a headache for soundfont designers. Unless there is or will be a conversion tool that fixes the attenuation values.

Elsewhere on the internet (Link) this discrepancy is mentioned (factor 2.5), and there is a hint that this bug was already fixed, however it’s not mentioned in which version.

Any thoughts or pointers about this?
Last Edit: 1 month 1 week ago by Sven Thoennissen.
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