Scarrafone effec
Some result.
In measurements without diffusers, a hum appears. A fan? The refrigetor?
Edit: Scarrafone, cockroach. From an italian expression ""Ogne scarrafone è`bello a mamma soia", every cockroach looks beatiful to his mom.
Some result.
In measurements without diffusers, a hum appears. A fan? The refrigetor?
Edit: Scarrafone, cockroach. From an italian expression ""Ogne scarrafone è`bello a mamma soia", every cockroach looks beatiful to his mom.
Attachments
Last edited:
Nice experimentation!
As you have already noticed.........
Indeed!
Right, for max peaking/quickest decay use thin metal tubing or at least PVC pipe like was used [partially seen] to knock down two high Q peaks in Danley's DTS20 sub woofer's response, then damp if desired: http://i240.photobucket.com/albums/ff172/slowcarIX/d1.jpg~original
GM
nice experiment Bicicletta!
guys do you have any idea why the very same cavity with a hole (+neck) acts as a resonator in some context (e.g. blowing across the neck of a bottle, enhancing the sound of a guitar body, allowing for the bass reflex effect in a loudspeaker cabinet) and as a selective noise filter in others (e.g. bass traps, acoustic panels, attenuation elements in engine intake systems) even when the cavity is not filled with absorption material?
how come the same element can act in two opposite ways? any clue?
guys do you have any idea why the very same cavity with a hole (+neck) acts as a resonator in some context (e.g. blowing across the neck of a bottle, enhancing the sound of a guitar body, allowing for the bass reflex effect in a loudspeaker cabinet) and as a selective noise filter in others (e.g. bass traps, acoustic panels, attenuation elements in engine intake systems) even when the cavity is not filled with absorption material?
how come the same element can act in two opposite ways? any clue?
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
- Home
- General Interest
- Room Acoustics & Mods
- Helmholtz for a dummy