Unit 4 Task 1 Aim B

Unit 4 - Task 1 Aim B

• Basic Principles of sound and acoustics

Sound: sound is a wave caused by combined vibrations which is moved through another form such different types of solids and gas and liquids, it is important to explain that sound is different to noise, sound is a wave of combined vibrations whereas noise is irregular shifts. Sound is travelled in air particles and sent via waves to another humans ear or even animal. A key factor is that sound travels faster than light.

Acoustics: Acoustics simply mean that different type of properties in a a room determines the sound. This includes, height and the density of the air, and the quality of the properties such as the furniture and materials used in the room. These property qualities have a influence and determine how the sound is reflected upon how hard objects are. For example, studios for  dance and music recording have soft damping boards on the walls which is made out a type of acoustic foam this reduces the amplitude of the waves and takes it in instead of allowing it to bounce back creating more noise.

• Interior Acoustics

College/schools : Acoustic screenings in colleges and schools have to allow sound to travel, therefore they do not use materials that soak up sound waves, the rooms of classrooms are much bigger therefore sound could bounce off and reach everyone. However, some colleges and schools have soundproof rooms for classrooms that do performing arts and music which have acoustic foaming material that does not allow sound to exit as there are different classes in the colleges and schools therefore prevents them from being distracted whilst performing arts students have a room full of loud music that they can only hear.

Reverberation: This simply means that how sound could reflect of different types of furniture/surfaces before it reaches the person listenings ear. For example; when a speaker is speaking to someone, the sound waves bounce back onto different surfaces before reaching the listener this then means that sometimes the sound could die out, meaning it could lose energy and get quieter.

• Studio Acoustics

Studio Acoustics: In order to keep sound in, they need to be in a controlled environment. To ensure that the environment is controlled, studios use interior acoustics to keep sound in. For example; soundproofing the walls, this means that they double up the room, insert foamins on walls and use standing waves which help sound to stay in and affect the ability of the sound.

• Exterior Acoustics

Atmosphere: The atmosphere in acoustics is important when there are recordings happening (for example; music studio) therefore it is key to choose the location and a specific type of studio for recordings. An example of this would be; that many people choose a confined space in a studio room to do recordings with the atmosphere being music related only, whereas you could not record outdoors in a park where there are cars driving and kids playing, but this depends on the environment, if you decided to record in an abandoned house or park the atmosphere would be more dense and sound would travel and bounce off the surroundings.

Windshields: This is very important when recording outside or recording in an area full of exterior sounds, this captures these sounds and does not allow the recording to take in these sounds, the sound waves are broken down which allows the audio that needs to be recorded to be presented only.

Ambient background sound: ambient sounds such as wind, traffic, birds, talkings from others these are sounds that could be present at the scene of recordings therefore windshields are important in order to prevent this.

• Simulated Acoustics:

Simulated acoustics simply means the process of allowing the change in the sound whilst producing it, in a way where you would like the sound to be like. An example of this would be that if you have recorded on a soundproof recording room, where the sound just absorbs and does not bounce, but then you would like it to sound like a empty abandoned house then you could use reverberation to the sound to get this type of effect.

• Purpose:

The purpose for acoustics simply means that the sound travelling aims to be very high in sound, this is all because of the acoustics, which allows the sound to be clear and loud. To prevent sounds muffling they use these acoustics for music studio recordings, tv shows, interviews that capture only the sound that needs to be captured. The purpose of this is to allow the quality of the music to be good for buyers, to allow the audience to listen to tv shows and interviews without the sound of the background.