Beginner's guide to acoustic treatment and isolation.

1. Welcome.: Hello, my name is Gabriel Felix and minimization graduated from California College of Music. And since 2013, I work in the music and educational area. They are introduce you to my nearest course on a couscous developed for your Lindeman in beginner in December jacket. It is a quick and Branko course to follow. Focus on the main themes related to a couscous is elation in sound three ton for music studios, round cinnamon and humps. A great course for you who wants to set up your musical recurrence to job. Cuz Quizlet a room or environment in the, free from the noise of neighbors, or even set up your own home, cinnamon in the room of your own home, you finalists is about a couscous propagation, diffusion, the fraction in absorption of sound for laypeople watching, bye to treat your room, how to set up your homes to do in your apartment. Eligibility in Echo limits. How do you insulate your house at GU Scully? How do usually the room acoustically great choice for music studios in home cinemas? Acoustic treatment in much more course, design it for you beginner. Learning more about a couscous treatment is a lesion in the basics of sound. See you in class number one, Bye-bye. 2. How do sound waves work.: Sound is responsible for the most efficient form of communication we know. And it behaves like a wave. Waves have a well-known property. They are able to transport energy, it down transporting matter. In other words, in the propagation of waves carry energy it dealt carrying the objects the best through. Note that when we're receiving formation of sound origin and diesel cars constantly in our day to day. We are not pushing the direction of wave propagation. We simply feel this sound energy resonating our eardrums. Sound waves are originated by vibrations in the material environment in which they will propagate. Take for example, an entire string that is set to vibrate. This vibration is transmitted to the air molecules that are around a string, which in turn begin to vibrate. The vibration of these molecules is transmitted to the neighbor molecules. Each in turn also start to propagate, to start neighboring molecules. So one, this propagation occurs in all directions. For this reason, the sound wave is classified as a spherical wave, longitudinal waves. As we started waves, we learned that waves can propagate in a longitudinal, transverse journal and mixes matter in a fluid environment. The waves propagate longitudinally. Things means that sound when propagating vibrates, the air molecules in the same direction as the propagation. To visualize this phenomenon, we can imagine a spring of each or compression is made at the end. This compression will propagate through the spring, causing it to vibrate in the same direction of propagation. Propagation speed of sound. Sound is a mechanical wave, so it cannot propagate in a vacuum. That is the propagation of sound occurs only new material environment. So we can see that the sound of explosion, interstellar battles of Star Wars are completed, are of reality in your daily lives. It is more common to see some propagating the air, but nothing prevents sound waves in liquids and solids. In fact, air is not a good environment of propagation cells, although it can sound to travel at a relatively high-speed of approximately 340 milliseconds. The liquids allow the waves to propagate it even faster. We can say that when we put our head in the water in here, denies a foreboding gene with extremely clarity. In a war, sound propagates at the speed of approximately 1450 milliseconds. Solids are also efficient means of propagation. It is not worth that these environment, besides the longitudinal propagation responsible for the auditory sensation, there is also a transverse component of sound propagation. In solids, Santa Barbara gauges faster than liquids. To give you an idea, the speed of sound in Ireland is approximately 5130 milliseconds 3. Audibility and echo limits.: How do you be a little limits. Sound is producing by vibration bodies, but not every patient is capable of generating a sound that will excite our eardrum. For us to have the auditory sensation, it is necessary that a sound wave is not well-defined frequency range. For the humor here, this frequency range goes from 20 Hertz to 20 thousand Hertz. Outside of this limits, the human ear is not able to perceive the wave as sound below 20 hertz waves or no. For a sounds in above 20 thousand hertz. Dr. known as ultrasounds. There are several animals that are able to perceive sounds above 20 thousand hertz. Dogs, for example, can pick up frequency of 50 thousand hertz. We also have the example of bats and don't fix their cool. As it is, a wave. Sound is subject to underlying phenomenon such as interference, refraction, and reflection. Sound reflection is perceived through a various curious phenomenon known as Echo. To understand it, imagine a person. Why did Rome who claps once, depending on the size of the sudden, after a short interval of time, this person will be able to hear these clapping sound. Again. This is because the sound when propagating, ends up encountering obstacles. By focus on this obstacle, the sound undergoes reflection in returns to the source, which in this case is the person who clapping his hands. It is true that most of the time they're cool, It's not perceive it. And this happens for a reason for the years to perceive the two sounds, the incident and the reflected differently. It is necessary that they are separated by a time interval of at least 1 tenth of a second. That's why it was mentioned that Iran should be large if this time interval, in considering that the sound propagates at a speed of 340 milliseconds. The minimal distance in the room to pursue their code should be 17 meters. 4. Acoustics, propagation, diffusion, diffraction and absorption of sound for laypeople.: Of course, because he's the bar of physics that stores the phenomenon of sounds and the panel environments. Can ultrasound, I run with a good at couscous is one that reflects the sound without excessive reverberations, without natural echoes or portions that has insulation from external sounds. The acoustic qualities of location that ban on its design in the type of material in each sound waves are reflected. There are only treat type of materials for decorous get treatment absorbance reflectors, diffusers, absorbent materials attenuate sound reflectors, redirect it, and the diffusers distributed depending on its sound frequency, the same surface may present different acoustic characteristics, such as the ability to absorb bass sounds and reflect average in a high pitch sounds or vice versa. Some propagation. There are two types of environments for sound fusion. Open space, enclosed space. In open space, sound waves propagating without encountering any obstacles. Consequently, the sound reception always respond to direct aids from a source in enclosed spaces, sound reception can be altered by environment in some ways. Reflexion, diffusion, diffraction, absorption, and refraction, reflection, change of direction of the sound wave. That effects are reflective surface, seamless, schwa wave of light. The sound reflects on the surface. In Eco, in opposite way should the initial angle of incidence and reflection happens, we phase inversion, but monk things the same propagation velocity, frequency, and wavelength of the incident sound. Smooth flat in rigid surface reflects sound waves almost doubt causing loss that walls of masonry, glass, lead, solid wood in high hardness, in some type of rubber, have high power of self-reflection. In contrast, the sound absorbing capacity of this materials is very low. Echo and liberation are consequences of sound wave and reflections. Echo occurs when a sound is reflected by a distance surface and is delayed long enough should we perceive it after the direct sound has gone out, when the time is not enough to distinguish the reflected sound from the original. We have the reverberation effects. You need to deal regional sounds repeated itself until it is leverage 0, we can perceive reverberations. Large empty space. For example, in a large church, in open space, there is no reverberations. Diffusion. The diffusion or dispersion of sound occurs when the sound waves reach the surface consisting of material with reflective character risks in a Roth surface sprouting the sound wave. For the environmental and Rome, the fraction is distortion of the rectilinear propagation of sound when it's certain events or obstacle. It occurs when a sound wave encounter a barrier in its propagation direction and bypasses the obstacle propagating through the underside. Absorption reduce the sound intensity it occurs when sound waves absorbent binding material tech constitute the obstacle. The higher the absorption, the lower the reverberation. Some solid materials absorb sound instead of reflecting it. Borrows an or flexible materials such as fabrics, full-on rubber are generally very absorbent, while no Paros are in region, materials such as metal, glass, and concretes are generally poorly absorbent. The absorption coefficient of sound increases with the thickness in this surface of the absorbing material. Refraction also know as transmission. It occurs when the sound pass from one medium to another with a different index of refraction. When we pass from air war, for example, does occurring this occurring the variation of the propagation speed and the variation of the wavelength and period. Several of these actions may occur simultaneously. For example, a sound wave, me at the same time be reflected in partially absorbed by a wall. Acoustic resonance. The phenomenon called a resonance occurs when one body begins to vibrate under the influence of another and at the same frequency as the other one, the frequency of a singer voice or rich, the same frequency of vibration as the molecular is soft glass. The amount of energy of the molecules gradually rises in a glass breaks. Interference. Interference is the consequence of this superposition of sound waves. It consists of a receipt of two or more sounds from different sources. Juice sounds of Guigo heights are reinforcing or permanently extinguish as they overlap agreement or face opposition. 5. Acoustic treatment.: The walls and ceiling of this tutor or builds, it is necessary to do an internal treatment of the surface looking for the ideal conditions for the application that is desired. At this stage, your goal is to add the echo and spread of sound around the room. Before define the type of materials to be used in the aqueous get treatment. It is gotten to know the noise reduction coefficients and RC, it is a numerical classification value That's allows quantifying the ability of a given material to absorb sound. This coefficient generally applies more to softer materials such as acoustic phone, glass, wool in carpet. Although it can also be applied to hard materials such as brick and a whole mess. The NRC of material is the average absorption of various center frequency between 125 hertz and four kilohertz. They hired the coefficient the better the absorption of the material. The table below shows some examples of materials. Even with a student builds with an optimize the dimensions, it is most likely to be necessary to make some corrections due to the sound reflection that will occur on a surface. The type of solution in the acoustic treatment will depend on the response that enclosure is producing. There are solutions oriented two-week type of problem. A field the case ago means to joules in Homs cinemas were built with extremely absorbing accuracy coating in order to total acute or reflections. This however made is to do acoustic environments very quick. Compare it to the place where music is normally hurt. Today's to Jews often have a nitro acoustics, usually with a more reflective wall in a more absorbing one. True active this situation. Panels of suitable materials attached to the walls of the studio or use it in order to absorb energy from the sound waves that hit the walls. The type of resource to be used. It will depend on the range of frequency of the sound spectrum should be absorbed. Far as materials such as foreign and carpet are generally efficient for absorbing trouble because they have a small wavelength. And any small irregularity of the material is able to decrease the energy of the sound wave. In the case of Basie, it isn't necessary to create devices comfortable with large wavelengths, which is done. We have special damping panels, call bass traps. It vibrates with the base and at the same time absorbed the energy of this vibration, not returning the wave Rome. In some situations, it may be necessary to reduce the support of only a certain frequency range of the spectrum. In fact, this properly calculate it to any panels are used. 6. How do you isolate a house acoustically.: Slow traffic noise, dog barking, Coursera going by and you're like crazy inside the house. Tried to get away from all that nice in as if the noise that comes from the streets were not enough. It is necessary to do with the sound of the upstairs neighbor is draining foreign tourists. The noise of the TV in the other room. It's possible notch gets dressed, especially if you need concentration to work study, or maybe sleeping during the day since you work at night, whatever your situation. One thing is fact, you need to learn how to make sound as elation to ensure peace and tranquility. Why do you need to know before you do the sound insulation, before you want to shoot your home or wrong from rice, know that you first need to define the origin of the sound. Otherwise, it's just a waste of time and money. There are two types of noise that plague arouse. The air and the impact. Areas. Nice or dose that spread through the air. And usually comes from outside, such as the sound of people talking Horn of cars or the music that the neighboring Cs Humason shoe, the maximum volume. But it bore noise can also come from inside the house. This is the case, for example, the noise from the TV that can be heard from the other room, impact noise or those that propagate through the walls, ceilings, or floor, like the sound of people walking or drag foreign tour. Therefore, the first step to ensure optimal sound insulation in your house is to define the origin not sounds. After this step, you can analyze the most efficient materials and deletion techniques. Where can you do the sound is elation. All environment in your home care receive Cusco treatment and insulation, closing doors, windows, floor while and see. The tip for a good sound insulation products is to map the areas with the highest nice concentration. In this fight, each ones you'll want to keep isolated. It can be the kitchen. If you use very nice equipments from the day. It can be the living room, the bedroom, studio that you have at home, or even a workshop where you perform manual works. Remember that insulation always works from the inside out, in front the outside, and that is when you acoustically isolated space, you automatically prevents sounds from entering and exiting drywall. Drywall is one of the most widely used materials to reinforce and ensure a good level of sound is election. The drywall is made from gypsum boards combined with rock, wool, or glass walls that are capable of absorbing sound in sealing off. Nice it comes from outside. And those inside the room. Applying drywall is a required, it's cumulative labor. The advantage of this system is the load generation of ways make them more sustainable. Addiction to offering a good cost benefit. Acrylic coating. The acrylic blankets, the type of cookies or later that can be applied to doors, walls, floor and ceiling. Sample should be staling, is very thin. The acoustic blanket can be applied by any one thing, noise and window. I'm not good at cross cancel liter option is the noise and we handle this type of window is thicker and heavier and also has a glass of grid thickness, which can vary from eight millimeter to tweet formula limits that banding on urinate. The anti-noise window is perfect for those who need to isolate the sounds that come from outside. Such as those Halivni apartments in front of a BZ Avenue. And tonight's door, the door has the same idea of isolation of the window, but it is produce it from solid woods and if necessary, also receives an extra treatment against nice. Also, it is worth mentioning that wood is a natural course Giza later. So if you are building or a renovating, make the option of using solid doors from the protract. Some extra tips can help you reduce noise indoors. Use quality materials. Maybe we'll make all the difference in the final result of the project. Cones on the help of a special eyes at professional to carry out the sound is deletion project. Be sure to seal all outlets including door and window cracks. Avoid using Woods on the floor and ceiling as the material helps to propagate sound from the environment that I've changed the internal we handled Jews, change the glass of the windows. So instead of the ordinary glass, use a double less. Take the opportunity to reinforce the ceiling, Herbert, if the problem is on the floor, consider replacing are using vinyl floor that absorbs sound better and does not let it reverberate through the room. I had a good solution is to use rugs. The thicker the better since they contribute to the absorption of cells hurting, as well as the carpet also offer a soundproofing. Refer those with more foobar that fabric. Ebit rules generate echoes, increase the intense enough nice, therefore are not a good tip is to reassess the position, quantity, and quality of your furniture. In addition, shooting certain carpet and curtains environment, consider placing some more foreign cheer or move the n So that sound absorption happens more efficient. And suppose forager brings even more acoustic comfort. Evaluate with the architecture, the possibility of inserting the acoustic products is assuming his face. Since some type of cookies or liters or placing sidewalls on the sub floor and the roof structure, whatever noise is bothering you now, you know what to do with it. 7. How do you isolate a room acoustically.: Each type of material has its own characteristics with regard to a close consolation, did ban on its density and also its thickness. The parameter call it sound transmission class as DC. Isn't America classification value that shows the reduction of sound froze for a given material or combination of materials. These classification generates apply to hardware tools such as Briggs, concretes, or wall mass among others. It is true that any material blocks a portion of sound transmission. But efficiently high density materials or bear in these respective that's lightweight materials. The most common solution to reduce the transfer of sound from one environment to another is the use of a double wall with a space between them, which can have only one air or a more absorbent material, for example, glass, wool, they hired the coefficient, the bird is lesion, not forget that's deletion must be effect in both directions. That is, it must not allow the passage. Ambient noise, for example, is low traffic or dog barking in studio, as well as prevent the center of these two Jew from being heard outside. In some case, it is easy to isolate the external sound, but it's very difficult to prevent a sound producing studio from disturbing the neighbors. Unfortunately, most common building walls do not have enough density and thickness to effectively muffled sound. Bu, both inside-out and outside-in addiction. Commercial homes or apartments or even officers have windows and door. We felt any special treatment for which sound can easily pass. In the case of external facing windows, the best solution is to eliminate them permanently by close. Then with bricks. If there's not option, then it is necessary to transform the anion special window with a full glass. And efficiencies. Always keep in mind that the window can always be a weak point in sound as elation, as well as being a potential source of ranked and filtration. For example, the keys are for recording studio. It's needed internal window between the technical room and they're recording on. It is mers have double glass melting such a way that there is no direct contact between the fixing structure of each one, simply covering the wall, carpet or other material. We will not bring any practical results. As the cell needs mass should be blocked at, although it may ventilate, prove the internal couscous decreasing reflection. The thing layer of the carpet, we will not offer any resistance to the transmission of sound. The case of existing walls, one solution is to create another wall a few centimeters away from the regional wall. The space between the original and the new wall can be filled with absorbing material such as glass. It is also necessary to eliminate any kind of cracks for which the seller may lick the ceiling in the original floor on the clergy should also be evaluated with the same objects of creating barriers, just sound transfer. The same principle of the double wall can be applied to the ceiling. Properly adapt to the fiscal condition. Greer attention should be paid to the ceiling of cracks in a whole. Things that reassessed ceiling. Generally use it for the installation of lightning cable passage in the air conditioner pipes, the floor, or can be a critical part as it is where the highest level of impact noise occurs, especially in the case of drums and percussion. Placing a thick rug does not solve this kind of problem. Although it can meet gate, the noise of steps, for example, the most suitable solution is to create a floor above do regional and his allegiance from it by means of some type of suspension. Rubber blocks, for example, is a great option. 8. How to set up a home studio in your apartment.: Setting up a home studio apartment. It's not an easy task. So let's go to the nine points that we were about to get a professional sound quality when recording our songs. One is Alicia and sound treatment, space and neighbors. The worst problem when assembling your home studio. With this, we need to discard the construction of double walls since we will lose and Laura, physical space with this police acoustic curtain on the window, carpet on the floor, effect curtain behind the door, blast paintings on the wall in covert, any hole or renal crack in air condition with silicon. This way, you avoid as much as possible the input and output of sound in a room. If you use amplifiers and drums, never put them in direct contact with the ground, beauty as Smallwood and stance. This way, you will avoid heavy duration of these fragrances. But the most important tip for your home studio is to choose the room you set up your musical space. If you have this option, avoid choosing space that shares the wall with the apartments or property next door, right? Choosing M room that does not have shear rewards. We've ordered rooms in the neighbor's apartment. This will help a lot to contain the propagation of sound. That means you're recording in your neighbors. Are there options to think about? Is to set up a few trials to true. This means that you will record your songs through virtual instruments, softwares, in pleadings with the technology we have today, which is a great and professional sound quality, often better than a off beaks tutors around computer. The computer is the first equipment. I use Mac, but you can use a beseech. You, if you want to use a Logic Pro on the Mac, will run the software, since FL Studio will only run on the PC. If we're going to record music, add and mix in, we're not sure about create meals with photon instruments him softwares. From this, you make more acoustic music and we're not make too much beats. You can starve if a PC I, five CPU and memory of athletes, four GB. Since we'll be working with Georgia, you will warn, need Schubert, Brahms things, treat our software. The famous. The second thing you need to choose the algebra software. You are free and paid versions. Pro Tools. Ableton Live in Cubase are the trees super famous software, not for the free software called rubber. It's great to start with, but it does not come with as many plugins and effects as they are their options. For our interface. If you are going to record our Azure, you need an audio interface. There are several brands in several price. What changes the price is the amount of changes to record at the same time. But nothing prevents you from recording a single channel using a single channel interface and down record the next genuine, so one. Now, if you need to record multiple channels at the same time, such as eardrums, you will need to interface with more Chinese. Look for brands such as in algebra, folks ride in Tuscon Five reference headset. The refinance headset for mixing has no left over or exaggerated frequencies, which allows you to have a more current mixing. If you're wanting to, orange is unbalanced. You will meet your meals can one way in the older equipment will sound totally different? Look for brands such as EEG, EEG in audio technical fix microphone. Microphone is super important. If you are going to record a voice or instrument. If we're not going to record, you don't need to invest in a microphone right now. Save your money. The microphone you need initially is a condenser microphone. Of course, if you are a student or humps two does not. Noisy. Environment is a little bit nice. You may need a dynamic microphone is much more indicated to home studios. Remember that for the condenser microphone, you will need an audio interface that can power it with 48 volts. The vast majority of audio interface, or rarely do that, search for brands such as Sure, EKG and acts are microphones, seven, plugins and loops. You sure are going to create meals, can sign your computer. You will need plugging stats, simulators, synthesizers and samplers, beautiful instruments simulate real instruments where you can have a sound of piano, drums are Castro and etc. Nowadays, the songs you listen around, especially music for advertising, are all made with bleedings, electronic music beats, or rapid heartbeats as well. So it's worth researching what kind of plugins, samples, and virtual instruments you need, the styles of music you produce. For-loops, I nominate a platform called splicing. It is a platform where you pay a monthly fee and you have access to a 100 samples in loops per month, eight monitors. It is the biggest investment, but it will be necessary for grid comfort when mixing. You'll be fine, good pair of monitors in the range of 200 US dollars. Remember to choose a small size and monitoring if you are a space not too big. So you have more fateful Bayes theorem. And I made controller. Finally, it, you'd be the main controller. He may or not may have fader and pets. This equipment is simply a controller of samples. In vitro instruments. You can even use your computer's keyboard as a controller to play, but it's not the ideal look for brands such as audio. In a K. We can find meet controls, rounds, around $500. 9. What to buy to treat your room?: Circles get panel is usage to do the acoustic treatment of studios and home studios base. It is a high density Wu panel in a wooden structure. We've woven finish. You can find for large panel kids for 150 US dollars. This panel's absorb sound by decreasing reverberations. In addition to treating these space acoustically, they bring a very innovative and interesting look to the space. They are usually made of wood in their interior of rock, wool, or glass room. An addiction. It's exterior is covered with fabric. What is couscous tissues? The fabric for acoustic biennials allows the structure to act as the velocity absorber and then transform the energy of the sound wave into heat, dissipating it for itself. You can find a square muda from around two went US dollars. Look for felt, also use it for vehicles. A 4x4 fabric. The fabric and even towels. They, once you have your bathroom, acoustic pianos typically are around millimeter thick. In spite common sense that the figures, the best 50 millimeter panels are considered the industry standard. What is the frequency of a stone or acoustic piano? A coma acoustic piano is call it a broad band or broad fragrance. This means that it does not act on a specific fragrance, such as a base strap. Despite his standard acoustic piano, has a bass performance between 250 hertz in five kilohertz. Below that, the bass traps work best. In above that, any object absorbs or diffuse the fragrance. How does the acoustic curtain works? Of course, curtains works exactly lack of furniture. In fact, they did not significantly decrease the volume of the noise source outside the room. Some specific care curtains model reduce up to this bells external noise. But the dampen the sound in Eccles much more quickly. Inside the room, you find a square meter and around 50 US dollars based reps. The ER usually men factory, a core to the audience that he is, if you're wrong, has problems at 120 hertz. For example, they are to knit at this frequency so that the waves are caught by Dan as each warrior kind of trap, avoiding standing waves at the desired frequency. There are several shapes and size being used in different positions of the room, but always with the same purpose. You can find a kid with four plates for around 50 US dollars. Acoustical diffuser. In the image below, you can see the diffuser. It has the function of spreading the sound. That is, when sound waves reach their surface, they are returning to the environment in different directions of Vine direct reflection to the listener. There are also various shapes and size. Of course, you can find a few users around four or five US dollars. Acoustic phone can prevent high-frequency reflection. The famous trouble, this is simple installation, veer size and colors. Contrary to what many measuring it's not necessary to, should be in the role room. And avoid by Tomb limits FECA Cusco furrow. Very, very cheap, but they don't observe fruitless as effectively as the five-year limits for invest in quality, not in quantity. You will find four B's kids starting at 60 US dollars. 10. Final notes.: The last lesson of our course, and I have three things to talk. The first one is, please evaluate my course. This is very important to my work. This type of feedback is going to help me to improve my lessons. And of course, the visibility here in this platform. So this reveal part, this feedback part is very important guys. Second thing, you can watch the course over again, okay, it's not a problem at all. We have any kind of doubt. Just come back and see the lesson over again. This is important, very important. Because with this, you are going to absorb a 100% of the knowledge of our tree is visit my profile have several types of courses in this Florida form froms going to help in the future, right? So think is so much. See you later. Bye bye.