[openal] OpenAL Soft 1.19.0 released!

[Chris Robinson]

On 09/08/2018 09:58 AM, Ian Reed wrote:
> "decrease or increase the source's pitch by the same relative amount 
> (converting to/from semitones)"
> 
> Unfortunately I don't know how to convert to/from semitones.
> That could be a great pair of functions in the low level API.

The effect itself does

pitch = powf(2.0f, (CoarseTune*100 + FineTune) / 1200.0f);

This actually deals in 1/100ths of a semitone; CoarseTune is semitones 
(-12 to +12) and FineTune is 1/100ths of a semitone (-50 to +50; 
effectively making the total range -1250 to +1250 before division).

> I just adjust the pitch value on the OpenAL source, which only adjusts 
> frequency, affecting the speed/length.
> It would be nice if OpenAL provided a way to affect the pitch on the 
> direct sound.

The direct sound is really just the path that isn't connected to an 
effect, so it doesn't make sense to have it change from an effect. I can 
understand it being less than ideal to have to set up a send for the 
effect and set up a filter to silence the direct path to get the desired 
output, and I could probably make it easier with a lower-level API.

> So the mhr files are built into the dlls now right?
> The last version I used had them as separate files that needed to be 
> referenced on disk.

Yes, the default data sets are built-in. Extra (personalized) data sets 
can still be made and used like before, it just doesn't require external 
files for the default ones.

> Not sure why, but when I hit reply to this message my email client 
> (Thunderbird) only replies to you directly, not to the email list.
> Not sure if that is a mailing list setting or a problem with my email 
> client, but I assume it is preferred to have responses always go to the 
> list by default.

Not sure, I'm not familiar with it works at that level. icculus manages 
the mailing list, so you could probably ask him.