We could only partially fill the _scratchBuffer - .wav files may not
be exactly N frames long. Doh.
While at it, I needed to call finishLocalInjection() after local
injectors are done, and the access to the injector vector needs to
be locked, given that we do a QtDirectConnection with the networking
and thus the outputLocalInjectors is on a different thread.
The clicking was just 0-ing out the _scratchBuffer.
When I "fixed" my or instead of and issue, I did it in the wrong
direction. But it looked right :) Now it is. Sigh. Long story
how it got there, but it seems good now.
Code a bit more readable. Sadly (and I guess it makes sense), a
enum class XXX is not a class, so you cannot have member functions
for it. I can imagine no way to have a vtable if you are really
representing it as a uint8_t or whatever. So, I put a stateHas
function in the AudioInjector instead. Definite improvement.
So gotta keep track of when finished streaming to network and
locally separately. That means the State needed to be more of a
bitflag and less of an enum.
The original attenuation model seems wrong, under-attenuating at close distance but completely muting after 45m.
This uses a physics-based model of -6dB per doubling of distance in free space, for the injectors. The AudioMixer model and domain settings still need to be reworked in a future PR.
The initial HRTF reduced overall gain by -6dB to avoid clipping at spectral peaks. With the addition of a peak limiter, this is no longer necessary. Changing to 0dB improves the loudness match between spatialized and unspatialized sounds.
Adds a distance filter to model the frequency-dependent attenuation of sound propagation in open air.
Optimized using SIMD and computing all biquads in parallel. Performance impact is almost zero.
Filter updates are continuously interpolated and clean to -90dB.
Not enabled yet (distance hardcoded to 0.0f)
