AudioParam: Use a single Arc for shared properties

[uklotzde]

Stripped down successor of #297

[github-actions]

Benchmark result:


bench_ctor
  Instructions:             5134557 (-0.058899%)
  L1 Accesses:              7700321 (-0.056628%)
  L2 Accesses:                54101 (-0.033260%)
  RAM Accesses:               61573 (+0.004873%)
  Estimated Cycles:        10125881 (-0.042921%)

bench_sine
  Instructions:            78180296 (-0.004676%)
  L1 Accesses:            115134642 (+0.004070%)
  L2 Accesses:               263538 (-3.645936%)
  RAM Accesses:               62659 (+0.009577%)
  Estimated Cycles:       118645397 (-0.037883%)

bench_sine_gain
  Instructions:            82926506 (-0.013507%)
  L1 Accesses:            122321769 (-0.009244%)
  L2 Accesses:               282112 (-0.564303%)
  RAM Accesses:               62817 (+0.015922%)
  Estimated Cycles:       125930924 (-0.015056%)

bench_sine_gain_delay
  Instructions:           157035198 (-0.002571%)
  L1 Accesses:            223540436 (-0.001947%)
  L2 Accesses:               721737 (-0.208643%)
  RAM Accesses:               64500 (+0.003101%)
  Estimated Cycles:       229406621 (-0.005155%)

bench_buffer_src
  Instructions:            18570521 (-0.021890%)
  L1 Accesses:             26910860 (-0.035973%)
  L2 Accesses:                96688 (+4.185164%)
  RAM Accesses:               96111 (+0.014569%)
  Estimated Cycles:        30758185 (+0.033257%)

bench_buffer_src_delay
  Instructions:            91611448 (-0.048125%)
  L1 Accesses:            126761589 (-0.063556%)
  L2 Accesses:               216050 (+2.080351%)
  RAM Accesses:               96304 (+0.009346%)
  Estimated Cycles:       131212479 (-0.044401%)

bench_buffer_src_iir
  Instructions:            42554534 (-0.009667%)
  L1 Accesses:             61849292 (-0.021664%)
  L2 Accesses:               106422 (+7.576294%)
  RAM Accesses:               96209 (+0.010395%)
  Estimated Cycles:        65748717 (+0.037160%)

bench_buffer_src_biquad
  Instructions:            38983732 (-0.033651%)
  L1 Accesses:             54929469 (-0.010270%)
  L2 Accesses:               157336 (-5.934965%)
  RAM Accesses:               96317 (+0.008307%)
  Estimated Cycles:        59087244 (-0.092991%)

bench_stereo_positional
  Instructions:            46302581 (-0.014058%)
  L1 Accesses:             68633276 (+0.065711%)
  L2 Accesses:               717252 (-7.038245%)
  RAM Accesses:               96497 (+0.011401%)
  Estimated Cycles:        75596931 (-0.298148%)

bench_stereo_panning_automation
  Instructions:            32662902 (-0.012266%)
  L1 Accesses:             48683472 (-0.052023%)
  L2 Accesses:               170812 (+12.95521%)
  RAM Accesses:               96238 (+0.010392%)
  Estimated Cycles:        52905862 (+0.138105%)

bench_analyser_node
  Instructions:            39115769 (-0.011493%)
  L1 Accesses:             54858006 (-0.009507%)
  L2 Accesses:               192376 (-0.707111%)
  RAM Accesses:               96801 (+0.004132%)
  Estimated Cycles:        59207921 (-0.020139%)

[orottier]

Thanks. I think this strikes a sweet spot in the layout of the AudioParam pieces!