ASSIGNMENTS

ACOUSTIC ROOM TREATMENT

• Treating a room acoustically is necessary in audio production due to the fact that very few spaces have the physical qualities that make for accurate monitoring or desired recording.

• There are many things that can be done to a space before and during construction to optimize its acoustic behavior. These include the shape of the space, its isolation, and the surface materials.

ABSORPTION

• Absorption treatment are made of a soft material like foam,these absorb sound rather than reflect,this reduces the reflected sound that the room produces.

• Type of treatment is most effective at reducing echoes and reverberation,because it involves materials that can soak up sound waves such as form,fabric or fiberglass.

MAIN TYPES OF ABSORPTION TREATMENT

1. BASS TRAPS

• Bass traps are thicker foam pieces that are placed along the corners of a room, they are basically designed to absorb frequencies, also effective at absorbing mid and high frequencies as well.

• Flutter echo and slap, these most common problems in rooms not specifically designed for music recording and performance so acoustic form is suitable for these problems because they can even turn the most cavernous warehouse or gymnasium into a suitable acoustic environment.

2. ACOUSTIC PANELS

• These are thin and larger, come in different shapes and sizes.acoustic pannels offer greater surface area with less material, there almost completely ineffective at absorbing bass frequencies.

• They have over bass traps is their placement, panels can be placed anywhere in a room,in the middle of the walls which makes them ideal for eliminating standing waves between the walls,bass traps generally do not accomplish this because they are placed in the lower or upper corners of the room.

DIFFUSION

• Diffusion keeps sound waves from grouping so there are no hot spots in the room, in conjuction with absorption, diffusion can turn any room into one that is appropriate and useful for the purpose of recording and monitoring sound a high degree of accuracy.

• Diffusion involves using materials that scatter sound waves in multiple directions, such as diffuser panels or acoustic tiles.

• Diffusion can be used to break up reflections and create a more even sound field, It is especially effective in rooms with hard surfaces, such as concrete or tile. By scattering the sound waves, diffusion can help to reduce the amount of echo and reverberation in a room.

• Rather than absorbing reflected sound, diffusors will scatter the reflections to create a more pleasurable reverb, most small studio rooms have unpleasant reverb because the reflections gather in one spot in the room, which causes which causes some frequencies to amplify and others to cancel out.

• Diffusers protect the natural frequency balance by spreading out the reflections, most diffusers look like large wood panels with square cubbies or holes of varying depth.

• Absorption and diffusion should be used in combination to create ideal room acoustics.

PURPOSE OF ACOUSTIC TREATMENT

• To make it sound good when you are recording or mixing

• Trying to create a reflection free zone, we need lots of absorption around the the mixing or recording area.

• Control of sound or frequencies generated by a room

• To pre-determine frequency distribution in a room

• To pre-determine the room modes in order to reduce the cost of room treatment.

THE DIFFERENCE BETWEEN ACOUSTIC TREATMENT AND SOUND PROOFING

• Soundproofing refers to reducing the sound that comes in and out of a room through the walls, doors etc.so this is accomplished by blocking the walls will dense, heavy materials like fiberglass panels and sealing any gaps in the windows and doors.

• Acoustic treatment only refers to the sound within the the room and controlling reflections ,both of these processes are important for creating a recording space but they serve different purposses.

assingment

Discuss the characteristics of the following.

1. Direct sound

2. Early reflections

3. Late reflections

• Short reverb/small rooms

• long reverb/large rooms

Due date:12/11/22