r/MusicBattlestations - Built my own acoustic panels for a tiny bedroom studio.

A home studio capturing high-quality sound starts with an understanding of the nuances of acoustic treatment. As any audio engineer or music producer will tell you, great sound quality isn't merely about the equipment you use; it is also about the space you're working in. 

Even with the best mics, speakers, and recording software, an untreated room can still make unwanted echoes, reverberations, and bass buildup distort what you hear, affecting your final output. While doing all your work properly, the acoustic treatment ensures that what you hear is so true to the source that you can make more accurate mixes and recordings while doing playback.

From knowing the different types of acoustic solutions available to create your budget-friendly panels, this blog has everything there is to know to make your home studio become a professional-quality space.

Basic Understanding of Acoustic Treatment

Acoustic treatment refers to the strategic placing of materials within a room for the absorption, diffusion, or blocking of sound. This is contrasted by soundproofing, which would keep the sounds from penetrating or emanating from the room; rather, acoustic treatment maximizes the quality of sound within the room. The key elements are:

  • Absorption

  • It reduces reflections that lead to echo or reverberation.

  • Diffusion

  • Gives some dispersal of the sound waves uniformly throughout the space, so reflections are not concentrated in one part of the space.

  • Bass trapping

  • It informs on the low-frequency balance as these tend to amass in corners and make a muddy sound.

    Mastering the basics, you'll set up a home studio that captures every detail.

    Common Acoustic Issues in Home Studios

    Home studio acoustic problems are a very common threat because home studios, as a rule, weren't designed with audio recording or production in mind. However, to deal with these problems, you need to pinpoint which problems affect you and how those affect your sound. So, here's the breakdown of some of the most common acoustic problems for the home studio:

  • Room Reflections

  • When sound waves are bounced off of a hard surface—it can be a wall, ceiling, or floor—they bounce back to create reflections that mix with the original sound. This means the overall frequency response will be somewhat unbalanced, and it becomes hard to decide how your recording really sounds.

    Reflections thereby give an artificial "coloring" of the sound, over-emphasizing certain frequencies whilst de-emphasizing others. What you hear may not be what you should be hearing, and you find it difficult to equalize for an unbalanced mix.

  • Standing Waves and Bass Buildup Problem 

  • Low-frequency sounds, or bass, tend to build up in some areas in the room, often creating "hot spots" where the bass frequency appears to be increased and "nulls" where it disappears completely. This behavior occurs most readily in small rooms and rooms with parallel walls, which tend to boost certain low-frequency wavelengths.

    Bass and standing waves buildup creates uncontrolled low-end in your mix. You may think your mix is either "bass-heavy" or "bass-light" for reasons of what the room is doing to the acoustic response, not what it is.

  • Reverberation (Reverb)

  • Reverb is created when sound waves keep bouncing around the room even after the source of the original sound has stopped. Untreated rooms may have far too much reverb. In treatment-free rooms, the reverberation can render the sounds "washed out" or distant.

    High reverberation will obscure some of the definition and clarity you obtain when sounding sounds to isolate them. For example, for many vocal recordings, a strong, clear isolated sound is critical.

  • Flutter Echo

  • Flutter echo is a fast, repetitive echo caused by sound waves bouncing off from two parallel surfaces, like walls or a ceiling and a floor.

    It makes your recordings sound hollow with a "ringing" effect; vocals and instruments may even sound unnatural. The most noticeable is when clapping or making sharp sounds in an untreated room.

  • Uneven Frequency Response

  • The geometric design, material, and construction of the room favor some frequencies over others and suppress others, generating an irregular frequency response.

    An unbalanced frequency response makes it practically impossible to evaluate the real sound of your recording. For example, you might end up with a mix that sounds great in your studio but simply falls apart when you take it out into other environments.

  • Poor Stereo Imaging

  • Problem: In an untreated room, the reflections and standing waves deconstruct the stereo field-which can make it impossible to get a clean left-right balance.

    This makes a record sound harsh because of spatial problems, where instruments or sounds can't be positioned correctly in the stereo field. This is crucial for professional mixing since it determines how your audio will be perceived in terms of depth and location.

    Types of Acoustic Treatment Solutions

  • Acoustic Panels 

  • They absorb mid- and high-frequency sound waves. Avoid flutter echoes and minimal reverberation. Bass traps are mostly installed on the walls near the source of the sound or at reflective spots.

    Here is a customer review from our client satchel600

    Excellent

    Top quality and heavy duty.

  • Bass Traps 
  • Bass traps absorb low frequencies. They mount in the room's four corners to tackle standing waves, thereby reducing buildup in the low end.

  • Diffusers
  • The sound waves are spread out in all directions, so focused reflections are reduced without being eliminated. They are widely used along the rear walls and ceilings.

  • Acoustic Foam

  • Most DIY home studios employ acoustic foam. Essentially, it absorbs sound and reduces reflection. It does not compare to specialized panels for the control of bass frequency but will do the trick for what you need and fits your budget nicely when it comes to high frequencies.

    Using the right mix of these treatments will help you overcome specific challenges your room might present with acoustics.

    Here is a customer review form our client walterivan09

    Perfect product

    Its exactly as pictured and it really gives the quietness when recording vocals

    Choosing the Right Materials for Acoustic Treatment

    The right selection of materials to use for acoustic treatment is essential in making sure that the sound environment within your house studio is well-balanced. Different materials have distinct acoustic properties, each suited to addressing specific sound issues. 

    This will allow you to craft a space where unwanted reflections are minimized, excess sound energy is absorbed, and accurate sound reproduction is ensured. There are primary types of materials and their intended uses for the acoustic treatment described below:

  • Acoustic Foam

  • r/MusicBattlestations - My new setup! I did acoustic foam for the first time! My Mac is just my old desktop with older projects. What ya think? What should I change? I also put a lot of foam on my door cuz I have a roommate.

    Image sourced from Reddit

    This is applied specifically to absorb middle to high frequency sound waves which eliminate reflections and reverberations in a room.

    This is acoustic foam with an open cell structure, which ensures it captures the sound energy, further converting such energy to heat, thus dampening sound.

  • Best Used For
  • Foam panels are great on walls, ceilings, and around reflective surfaces for treating flutter echo and high-frequency reflections. This product is used widely for its budget-friendly prices and easy installation. This might not be enough on its own for low-end control.

  • Fiberglass and Mineral Wool

  • Fiberglass and mineral wool (rock wool) panels are much denser than acoustic foam and absorb across a much wider frequency range, as well as in the lower frequencies.

    Both these materials have very high density, giving them the capability to effectively hold energy from sound waves across a wide frequency range. They come in rigid panels forms which can be covered over with fabrics to create custom wall treatments.

  • Best Used For
  • These are used in making bass traps into corners and large wall panels to control low-end buildup. They are ideal for dealing with low-frequency problems and are one of the most sought materials to be used in professional acoustic treatment solutions.

  • Fabric-Wrapped Panels

  • Fabric-wrapped panels are often filled with fiberglass or mineral wool and are meant for absorption purposes along a wide range of frequencies while also providing aesthetics.

    These panels have their surface finish covered in acoustically transparent fabrics. This allows the sound waves to penetrate through and cause absorption by the material inside. It's available in numerous shapes, colors, and designs that can provide some great combinations of aesthetics and function.

  • Best Used For
  • The panels are placed on walls, ceilings, or corners and can be wrapped in fabrics. Great to give a more commercial look but has huge acoustic control. Suitable for mid to high-frequency absorption. Can be incorporated into any studio design

  • Bass Traps

  • More aimed to eliminate problems of low frequency since small home studios do not have much bigger room sizes.

    Bass traps usually consist of high-density materials like fiberglass or foam and are often used in thicker, wedge shapes in the corners where the bass tends to build up.

  • Best Used For
  • Placement of bass traps inside the room corners helps cut down on standing waves and low-end buildup. There is an absolute need to balance out the bass response since this helps a lot in producing mixes that sound good on other audio systems.

  • Diffusers

  • These devices scatter sound waves while breaking up reflections without absorbing them fully, which helps preserve a natural "live" sound in the room.

    Usually made from wood or plastic, these diffusers have unbalanced surface patterns, and the irregularity takes place across surface patches, dispersing sound in all directions to weaken focused reflections.

  • Best Used For
  • Diffusers are mounted on back walls or ceilings, where they inhibit sound from reflecting directly back to the listener. They come in particularly handy for maintaining a sense of space and dimension in a room. They're ideal for mixing and mastering rooms where a lively, controlled acoustic environment is desired.

    Here is a comparison table for these materials !

    Material

    Acoustic Properties Best Used For Advantages Limitations
    Acoustic Foam Absorbs middle to high frequencies; reduces reflections and reverberations Treating flutter echo, high-frequency reflections on walls, ceilings, and reflective surfaces Budget-friendly, easy installation, effective at controlling high frequencies Limited control over low frequencies, may not be enough for full-range absorption
    Fiberglass and Mineral Wool Dense and effective across a wide frequency range, including low frequencies Bass traps, large wall panels to control low-end buildup Highly effective at controlling low frequencies, wide frequency range absorption Can be more expensive than foam, requires fabric covering for aesthetics
    Fabric-Wrapped Panels Absorbs across a wide frequency range, with aesthetic flexibility Wall panels, ceilings, corners for mid to high-frequency absorption Aesthetic flexibility, can be used in any room design, effective at mid-high absorption May not control low-end frequencies as effectively as bass traps
    Bass Traps Target low frequencies; absorb bass buildup in room corners Corner placement to reduce standing waves and low-end buildup Essential for controlling low-end problems, improves overall sound clarity Often requires larger space for placement, may not be enough for full-spectrum absorption
    Diffusers Scatters sound waves, breaking up reflections while preserving room "liveliness"

    Back walls or ceilings to maintain a natural, open sound in mixing/mastering rooms

    Maintains room dimension, avoids overly "dead" sound, ideal for professional spaces

    Does not absorb sound, so may not help with excessive reflection or bass buildup

    DIY Acoustic Panels

    r/hometheater - DIY acoustic panels, anyone have any tricks/tips/videos for getting the corners perfect when wrapping the fabric around?

    Image sourced from Reddit

    Making your acoustic panels cuts the expenses and ensures a specific solution for your space. This is a basic guide to DIY acoustic panels:

  • Materials

  • You would need a wooden frame, mineral wool or fiberglass insulation, cloth preferably breathable, a staple gun, and so on.

  • Building the Frame

  • Cut wood into four equal pieces to create a rectangular frame. You can secure the corners with screws or nails.

  • Insert Insulation

  • Install the fiberglass or mineral wool insulation into the frame snugly without leaving any gaps behind.

  • Wrap with Fabric

  • Place the fabric over the frame tightly and staple them along the edges of your frame.

  • Mount on Wall

  • Mount the panels along your wall, preferably at reflection points close to your listening position.

    Installation of Brass Traps

    Low frequencies are the most challenging acoustic features of home studios to control because they travel for a long distance. Because it is much easier to douse or scatter mid and high-frequency sounds, low frequencies tend to linger in the environment as residuals or residues, creating the muddiest, bombast sound that distorts audio perception. 

    Usually, bass traps are an essential tool to contain these low frequencies in a smaller room by capturing the excess bass energy and not letting it bounce back into the listening area. Installation is crucial to truly achieve their effectiveness; thus, here is a comprehensive guide on how best to install your bass traps at home.

  • Identify Key Corners of the Room

  • Why Corners?

  • Bass tends to accumulate in corners where two or more surfaces of walls and ceilings or floors intersect. Intersections also make standing waves build up and enhance low-frequency sounds, hence producing an uneven bass response in a room.

  • Pay attention to Wall-Wall and Wall-Ceiling Corners
  • These areas where the walls touch either the ceiling or the floor are the most crucial because here the parts have to suffer most from low-frequency build-up. Thus, these areas in the first place ensure that your bass traps work at peak effectiveness.

  • Placement of Bass Traps in Corners

  • Start with Wall-Ceiling Intersections
  • Place a bass trap in the top corner where the wall intersects with the ceiling. This is normally where the low-frequency buildup is usually the strongest, and trapping bass in these areas prevents the reflection from continuing on around the room.

  • Consider Floor-Level Corners
  • If you have room in your studio, it's a good idea to put bass traps in the floor-level corners, as well. While upper corners tend to do their best work, equalizing both your floor and ceiling corners will balance up the overall bass response.

  • Mounting Options
  • Free-standing or wall-mounted models depend entirely on your design and style choice. Wall mounting bass traps should be attached according to the manufacturer's instructions but with a slight angle because, in most cases, an angle would provide better contact for increased surface area and hence improve the absorption.

  • Angle Bass Traps for Better Coverage

  • Triangular Placement
  • With the triangular or corner-fitting bass traps, you will have considerable coverage area. They fit perfectly into corners and thus catch more bass energy coming from different angles.

  • Leave a Gap Behind Traps
  • Mount traps as close to a wall as possible, but leave a small gap behind them. This maximizes the effectiveness of the trap and significantly increases its capacity for sound wave absorption, particularly in very low frequencies.

    Diffusion Techniques

    Diffusion is a critical control to prevent sound from over-absorbing and annoying "dead" room sounds. Adding diffusion involves the following steps:

  • Select your diffuser

  • There are two types of diffusers, the quadratic residue diffuser (QRD), which disperses sound like no other, and the skyline diffuser, which spreads it in its own very different way.

  • Mount on Rear Walls

  • Install diffusers on the rear wall or ceiling so that there will be balanced sound and no overpowering reflections.

  • Use Strategically

  • Avoid placing diffusers too close to your listening position; they function best when some distance has been taken by the sound.

    Acoustic Treatment Placement: Where to Begin

    Acoustic treatment placement is highly important in getting the right balance in a sound. Proceed step by step in the journey to best balance a sound for your home studio.

  • Understand Reflection Points

  • Use a Mirror to Find Reflection Points
  •  Start by finding where sound reflects directly from your speakers to your listening position. Have somebody stand with a mirror along the walls while you sit in your listening spot. In that case, you will be able to see your speakers in the mirror from your seat, when you find a reflection point.

  • Mount Acoustic Panels at Reflection Points

  • Hang panels at each reflection point
  • Now that you have identified your reflection points, attach acoustic panels to the wall at every one of those points. These panels will absorb early reflections, minimizing reverberation and helping to make for a cleaner listening space.

  • Additional Panels
  • If the critical areas still need to be covered, then hang panels on the ceiling and all the reflection surfaces. This works well in small rooms with hard surfaces.

  • Bass Traps to Tame Corners

  • Add Bass Traps in Every Corner
  • Low-frequency energy gathers in corners as part of the problem of "boominess" or "muddiness." By adding bass traps in every corner, in particular wall-ceiling and wall-floor interfaces, these low frequencies you are trying to rid your room of will be absorbed.

  • Testing and Troubleshooting Your Acoustic Treatment

  • Testing Your Configuration
  • After you have assembled your acoustic treatments, play some variety of sounds and listen closely for evidence of any of the following symptoms: flutter echoes, bass buildup, or uneven frequency response.

  • Make Adjustments as Needed
  • Acoustic treatment is not a one-size-fits-all cure. Often, moving the panels a little or adding more where needed is enough to make a room work well. Another good measurement tool is Room EQ Wizard, which can give you a lot of useful data about how your room interacts with sound.

    Budget-friendly Acoustic Treatment Hacks

    Acoustic treatment can be installed without breaking the bank. Here are a few cost-effective methods:

  • Utilize rugs and carpets

  • Hard floor covering with rugs should be utilized in covering most of your floor to absorb sound and reduce reflections.

  • Thick curtains

  • Several thick curtains can also act as an absorbing material, especially around windows.

    DIY diffusers using bookshelves: A bookshelf with books of various sizes can work as a diffuser.

  • Robbed Mattresses 

  • Repurposed mattresses or old foam mattresses and padded furniture can be used to catch some noise if placed correctly.

  • Egg Crates 

  • Egg crates aren't quite as effective as acoustic foam but will help somewhat split up the sound waves.

    Here is a detailed youtube video as a guide for beginners doing acoustic treatment !

    Why Choose GeekStands for Studio Home Accessories and Acoustic Treatment

    At GeekStands, we are committed to providing our clients with top-quality studio home accessories and acoustic treatment solutions designed to optimize sound in any home recording space. Our products are crafted with precision and care, ensuring they enhance your soundproofing, noise control, and overall acoustic environment for clear, professional results.

    We offer a wide range of acoustic treatment products, including soundproofing panels, bass traps, diffusers, and foam wedges, all designed to improve the acoustic quality of your home studio. 

    Whether you're recording, mixing, or mastering, our accessories help to eliminate unwanted reverberation, echo, and background noise, allowing you to achieve a more balanced, accurate sound. Our durable and easy-to-install products are perfect for small studios, home offices, and any space in need of acoustic improvement.

    These features make GeekStands a trusted name for studio home accessories and acoustic treatment. If you're looking to take your home studio to the next level with premium sound quality, don’t wait—grab yours today and transform your recording space!