fix deprecated func

[SnaiCrys]

#399 #420

[ImagicTheCat]

The deprecated errors are not really errors, the call should not be modified because smoothing was not my intent in the first place.
What about the panner/listener coords stuff ? Is that standard ? I don't find anything about it.

Also, I don't understand this one: d6984f4

[SnaiCrys]

value is no longer used in AudioParam, everywhere it should be replaced with setTargetAtTime or setValueAtTime. Example: https://github.com/goldfire/howler.js/blob/master/src/plugins/howler.spatial.js

in d6984f4 I forgot to change the coordinate axes and fixed it

[ImagicTheCat]

Smoothing is deprecated, it doesn't seem that the value parameter is. Also:
What about the panner/listener coords stuff ? Is that standard ? I don't find anything about it.

[SnaiCrys]

https://webaudio.github.io/web-audio-api/#dom-audioparam-value