https://www.archerysoundlab.com.au/blog daily 0.75 2025-07-09 https://www.archerysoundlab.com.au/blog/arrowsoundtestingmethodology monthly 0.5 2025-07-09 https://images.squarespace-cdn.com/content/v1/686c6ae79ebe5e5945663b2d/d5d6a2c4-4cf9-42e2-afa1-ee9d88ca28c7/Matlab+Process.jpg Blog - Arrow Sound Testing Methodology - Make it stand out Using AARAE within Matlab, the recordings are trimmed to include the fletching-noise only, then processed to identify Lmax in 1/3 octave-bands, or any other acoustical metric that is of interest (Lpeak, Leq, L5 etc) https://images.squarespace-cdn.com/content/v1/686c6ae79ebe5e5945663b2d/63122cc6-7e2e-43f8-9108-9d7cad385761/Outside+vs.+inside+ASTC.jpg Blog - Arrow Sound Testing Methodology - Make it stand out The same arrow was shot 10 times and measured for its average Lmax (dBeer) both outdoors and inside the ASTC. https://images.squarespace-cdn.com/content/v1/686c6ae79ebe5e5945663b2d/9f44a696-5c74-452e-b737-bc6e01f45840/Inside+the+ASTC.jpg Blog - Arrow Sound Testing Methodology - Make it stand out Inside of the ASTC, the Class 1 measurement microphone is mounted to a fixed-base in the centre of the chamber, which ensures repeatable-positioning and even room-mode distribution. The walls are lined with 250mm thick absorptive material to ensure no internal acoustic reflections (>250Hz) interfere with the measurement. https://images.squarespace-cdn.com/content/v1/686c6ae79ebe5e5945663b2d/e1ec0126-7e64-4456-ac34-d81f1506baa8/Chrono.jpg Blog - Arrow Sound Testing Methodology - Make it stand out Garmin Xero C1 Chronograph https://images.squarespace-cdn.com/content/v1/686c6ae79ebe5e5945663b2d/87fa6711-3dc7-4a40-b15e-f638da6b4d84/noise+level.png Blog - Arrow Sound Testing Methodology - Make it stand out Background noise levels inside the ASTC (L(z)eq). https://www.archerysoundlab.com.au/home daily 1.0 2025-07-09 https://www.archerysoundlab.com.au/contact daily 0.75 2025-07-08 https://images.squarespace-cdn.com/content/v1/686c6ae79ebe5e5945663b2d/2a698162-25a0-45f4-8cab-32316d0fd48b/IMG_7817.jpg https://www.archerysoundlab.com.au/home-1 daily 0.75 2025-07-09