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Add option to reduce number of sound path calculations

João Fatela requested to merge reduce-path-calculations into main

Goal: optimization. Reduce the number of path calculations necessary to render an auralization by only updating the scene every x blocks.

Introduce argument -bpu --blocks-per-update (stored and passed internally as block_skip).

  • determines how many audio blocks are processed between scene updates (changes in source/receiver position).
  • must be integer value (min 1 - update every block; max # of blocks in output signal - never update position) -- not sure how to assert.
  • default value 1.
  • should not affect visual rendering fps.
  • output audio should be checked for avoidance of artifacts (noticeable differences)

! audio and visual rendering loop in main_cli.py changed

  • no more dependency on number of blocks, rather number of scene updates

! Had to make make changes in run_auralization.m: rendering loop now consists of two nested loops

  • parent loop updates scene
  • child loop processes x blocks for each parent scene update

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