The Basics of Room Acoustics
This video outlines some of the key concepts and strategies related to room acoustics.
Related video - How to Set Up First Reflections:
• How to Treat a Room wi...
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www.gikacoustics.com/acoustic...
"A dedicated studio that’s designed and built from the ground up for sound will often have custom acoustic treatments built-in to the room design, but many people looking to set up a home studio, listening room or home theater start with an existing room. Maybe you’ve got a spare bedroom or a finished room in your basement you’re looking to convert into a mixing room.
The rooms that typically get converted into studios are usually on the smaller side. These smaller rooms cause large peaks and nulls as certain frequencies build up or cancel themselves out.
Sound waves, like all waves, have peaks and troughs. When two waves interact, their respective peaks and troughs get combined depending on the “phase” of the wave. If the exact same sound wave is 180 degrees out of phase so that the troughs of one wave line up with the peaks of the other you get what's called phase cancellation.
In-phase waves add together and produce peaks, and out-of-phase waves cancel each other out and produce nulls. This gets very complex very quickly because there are always many more than two sound waves interacting in this way, producing peaks and nulls that make it harder to hear accurately.
Most of these problems will occur in the lower frequencies as bass tones have longer decay times. The longer the decay time the more these frequencies build up and interfere with each other. This is why treating your corners and first reflections with thick Panels is always a great first step when treating your room.
At GIK, we typically treat these areas with absorption material 2 - 6 inches thick. Absorption is great here because it converts the energy from the sound wave to a very small amount of heat as the air collides with the panel. This eliminates the sound from the room and keeps the unwanted frequencies from reflecting and building up into peaks and nulls.
Ever notice that bass instruments tend to be big? Just like how you need a large instrument to produce a bass note, you need a large thick absorption in order to treat the lower frequencies, because the wavelength is physically larger.
Thick, broadband bass traps should always do most of the heavy lifting in the bass strategy, but we can fine-tune the response with GIK's patented technologies. Range Limiters let us maximize bass absorption without overdamping the treble, and tuned Scopus bass traps are useful to clean up any stubborn resonances that remain even after a full complement of broadband or range-limited bass traps is in place.
Another option for room treatment is diffusion. Unlike absorption, the purpose of diffusion is to scatter sound evenly in all directions. When sound hits a flat surface it reflects off at the opposite angle just like a light beam off a mirror. By using an acoustically reflective material such as wood, we can make treatment with ridges and depressions so that the sound striking the panel reflects off in all directions.
There are different methods we can use to create diffusion instead of reflections, both with GIK's dedicated diffusors and with hybrid devices that provide diffusion, absorption, and bass trapping all in one.
This strategy can also help with evening out your frequency response by scattering sound evenly around the room. Diffusion has the added benefit of changing a room's characteristics to give the impression of a larger space, and can be useful where too much absorption may make a room sound dead.
Great sound in small rooms for audio production is all about balance, and the best rooms have a great bass response and a neutral overall character that won't color or mask the sound. Production spaces like this allow you to work faster, with less frustration, with better sounding results.
GIK Acoustics has a very wide range of effective, affordable products to achieve these goals. Be sure to contact us for free acoustic advice so we can help you get the best possible sound for your room and your budget."
Пікірлер: 31
It's been two weeks since I installed my GIK pro series 50 mm absorption/diffusion panel and I'm still amazed by the effect one panel can have on such a small 13 ft x 11.5 ft (4 x 3.5 m) room What I didn't expect is being able to turn my audiophile grade receiver/amp up a further 4 - 8 DB and yet still be able to listen to my 2-channel music for long periods without any fatigue what so ever! 🥳 I never thought I'd say this, mainly because I quite like the reverberations of the low-end but I'm now thinking of doing Corner bass traps.
This is by far the best channel for acoustic treatment
@GIKAcousticsLLC
3 жыл бұрын
Thanks. There's a lot of really talented youtubers making content on this topic so that mean a lot.
@alberto2469
2 жыл бұрын
@@GIKAcousticsLLC Eduardo's comment is the best comment for me to look at your channel, since i'm looking for more acoustic treatment for my room, when I will need this for my videos. Keep it up, you expalined the same topic 10 times under the gap of another dude who has 20 times over your views and 10 times less %upvvote/approval rate, since he has 10% disapproval (for god knows reason) and you 0,0005%. Keep it up dude, your explanations when objective are pretty cool. Just don't forget to make in-depth explanations as well and cover all the necessary topics for it in order to solve it, because these are fantastic. Thanks =)
Hello, What is the best room dimensions for audio mixing and mastering..
Hi.. I'm building a very tiny control room and a vocal booth.. The dimensions are.. Control room: 6.8"x 11'x 10' Vocal booth: 5.6" x9' x10' I don't have many options here.. so I'm planning of deadening both rooms by installing absorption everywhere.. now.. will installing your hybrid absorption/diffusion panels help bring back some life in the room..? I have been thinking of installing them on the ceilings as well as the rear wall of the control room, should I go ahead? And if so.. should I be installing 1d or the 2d panels on parts of the ceiling. Thank you..
Fantastic explanation. Question though: how do you know where exactly to place everything (where on the walls do you put the absorbers and diffusers)?
@GIKAcousticsLLC
2 жыл бұрын
Glad to hear. It all depends - we have several videos on this subject, but the easiest way to get YOUR specific room taken care of is to send your room information to us via our website for one of our room designers to look at and advise completely free. We've got an easy form that lets you put in room dimensions and plans/drawings, etc. Here's the link: www.gikacoustics.com/acoustic-advice/
Hi Can someone help please? I have a small room, almost square 3 walls are brick 1 wall is drywall Because of the layout, it's difficult As of now I'm setting up so I have brick in front of me Brick to the left of me And drywall to the right of me Is this going to cause major issues? My bass traps are in the front corners I can swap so the dry wall is in front of me, but my door is in the corner so my bass traps would have to go behind me I'm new to room acoustics I have a load of panels I work full time I can't learn to test this Set up.then set up again And again And again I just don't have the time or energy after a 48 hour week! In theory What's my best option? Thanks
Is there any use in hanging baffles in the ceiling? I see they are often used in commercial sound treatment products.
@GIKAcousticsLLC
3 жыл бұрын
We don't sell hanging baffles at the moment, but we do have acoustic treatment that can be effective when treating ceilings. That said, we may be able to create a simple solution for you using fully wrapped 2" acoustic panels. This can be custom-made for you. Other options are ceiling mounting using our cloud mounting brackets, by using eye-hooks and chain/picture wire, or in a standard drop-ceiling grid via our Acoustic Ceiling Panels. www.gikacoustics.com/product/acoustic-drop-ceiling-panel/ To request any product customizations, please reach out to orders@gikacoustics.com
Here is a thing about the technical question for you, I would like to ask you how to measure small room reverberation time correctly. I am really wondering where we can put the measurement speaker and microphone!
@GIKAcousticsLLC
3 жыл бұрын
Thanks for the question. This is dependent on how the room is used. A control room is going to be different than a classroom or office, or even a home theater. The best answer is going to be to get our free advice based on your unique space from one of our talented designers. Here's the link to fill out our easy to use form for advice: www.gikacoustics.com/acoustic-advice-form/
@forthemaxandminmin152
3 жыл бұрын
@@GIKAcousticsLLC um? You know
@GIKAcousticsLLC
3 жыл бұрын
I'm sorry, I misread the question. You want to measure at the most important area: the listening position. As you test the mic around the room you will get completely different results.
The thicker the panel the lower the effective range of absorption 1:47 ? Can you pls. Explain
@officialWWM
3 жыл бұрын
The shopper because lower bass frequencies are larger, they need thicker panels to absorb them.
@theshopper6902
3 жыл бұрын
@@officialWWM ohh
@sigil_theband1953
3 жыл бұрын
@@theshopper6902 The "bass absorbers" he's talking about are not going to absorb low frequencies very well, if at all, because sub frequencies are literally 30 feet long and 14 feet high (depending on the frequency). You have to use different technology, like diaphragmatic absorbers, to actually absorb the sub frequencies. Foam and/or insulation is NOT going to accomplish that.
@BoboButYouCanCallMeTom
3 жыл бұрын
www.acousticmodelling.com/porous.php This calculator shows what a specific panel thickness does in how much the panel will absorb.
@GIKAcousticsLLC
3 жыл бұрын
@Sigil_theband - Thanks for your input on this. While you're not 100% wrong here, you're only partially correct. Yes, low bass frequencies have long 30' wavelengths, but the "height" of the frequency is 100% dependent on volume, not frequency. Still that doesn't matter much, velocity absorbers (our absorbent bass traps, ie, 244s, Monsters, soffits etc) work when air (vibrating with sound) passes through the absorbent material, this works with even very long wavelengths much larger than the size of the panel. How much absorption happens at the lowest frequencies depend greatly on the panels' thickness. Even the 244, our thinnest and most cost-effective bass traps, have some measurable effect under 100Hz. Thicker devices like Monsters and especially Soffits work much better under 100Hz. All you have to do is look at our test data for our products to see that the "bass traps don't work at low frequencies" assertion is false. Apart from thickness, bass trapping results are more about coverage area than anything else. Great bass response is a commitment, in that you need a lot of thick panels in the room to achieve it. But sometimes people don't have enough room to achieve this, or perhaps it is unacceptable for aesthetic reasons. In these cases, even 4" absorbers in corners helps a lot, still in the most important part of the bass range (the upper bass, where there's a lot more activity in most music, and where the "boominess" and "muddiness" lives). It's true that panels even thicker than the Soffits would help more, but anything that big makes no sense from a business standpoint because we have to ship them, and most people don't want to pay more in freight shipping than what the panel costs to begin with. Larger devices like this are most often built on-site as a part of a comprehensive design strategy, often behind false walls concealing all treatments in a custom built room. These builds do use insulation! It's just very thick, and it's the right kind/density of insulation.
what has bigger impact diffusion or bass trapping?
@GIKAcousticsLLC
3 жыл бұрын
Bass traps should be your focus when you begin your treatment. You only want to add diffusion if the bass in your room under control. Check out some of our other videos on diffusion if you'd like to know more. kzread.info/dash/bejne/nI2p3JiyXb2xj7w.html
looks like they did Joe Rogans set up in Austin?
@GIKAcousticsLLC
3 жыл бұрын
That is correct!
So a church may spend tens of thousands or even hundreds of thousands on installing a pipe organ. That church or cathedral is full of highly reflective surfaces.including large glass windows. Yet, you’ll never see the vicar, priest or choir buoy fixing defuser panels, absorption panels or bass traps around the place.
Were you mad when you cut your hair?
@DylanWintersteen
3 жыл бұрын
Nope, just like to mix it up.
@sigil_theband1953
3 жыл бұрын
HA!
Nice hairstyle anyway
@DylanWintersteen
3 жыл бұрын
It's my 'quarantine' cut