5 ms·
The article doesn’t explain it, but the reason why you want a large space to measure loudspeakers is that your measuring frequency range is determined by the ti
by MrBuddyCasino 2y ago
The article doesn’t explain it, but the reason why you want a large space to measure loudspeakers is that your measuring frequency range is determined by the time it takes until the first reflection arrives, which you can exclude by using a windowing function in your measuring software. You only want the direct sound emanating from the DUT, not the reflections (unless you’re interested in room correction).
The larger the space, the lower the frequency you can still measure.
- myself248 2y agoSo the top of a very tall tower...
- MrBuddyCasino 2y agoYes. Except you also need a building around it to isolate outside noise and wind.
- a-french-anon 2y agoUnless you use German space magic: https://www.klippel.de/products/rd-system/modules/nfs-near-field-scanner.html https://www.klippel.de/products/rd-system/modules/nfs-near-f...
- MrBuddyCasino 2y agoI wasn't aware the Klippel scanner can do low-frequency measurements - any idea how?
- a-french-anon 2y agoComplicated maths, from what I (don't) understand. Note that it's only the NFS that can do so. https://www.audiosciencereview.com/forum/index.php?threads/understanding-how-the-klippel-nfs-works.13139/ https://www.audiosciencereview.com/forum/index.php?threads/u... is a good resource to get a high-level explanation.