Creation and use of sound in media

film - entertain
tv programmes - entertain/educate
games computer - entertain
animation - entertain
radio - inform, educate
advertisements - advertise

wild tracks - audio recording intended to synchronise with the video. Recorder separately.
Atmospheric sound - background noise present at a given scene or location.

sound used too:
- create tension
- reinforce genre/conventions

Always used to have an effect on the audience.

foley artist:
create sound with other objects

Sound compression is when you reduce the volume of loud sounds (downwards) or amplify quite sounds (upward) therefore reducing or compressing an audio signals dynamic range.

Diet Coke advert 2019:
- Atmospheric sound - floor boards and the girl creeping past - makes it seem more hysterical and tense. Puts the audience on edge.
- Atmospheric sound - TV background - makes it more authentic - puts the audience in the scene, makes it a more realistic scenario.
- Dialogue - words the dad says too the daughter, as she attempts to sneak out - humorous, rids the tension, relaxes the audiences.
- Wild tracks - sounds off her jewellery clinging against each other - authenticity, trying to be silent but the sound of her jewellery ruins the sneaking out attempt.
- Music - at the end of the advert, closing off with a picture of the coke can in it - relate a sound back to the can and the drink.

Music can also be used to create tension and convey different emotions to the audience i.e sudden, sharp music for horror, or contrapuntal music to make the audience feel un-easy.

Atmospheric sound is used to make scenes more authentic to the audience. It is also used to create tension as well as place the audience in the scene.

Wild tracks is used to fill the gaps of missing sound, as well as make certain actions appear more authentic and real. This makes for a more appealing final scenes.

Dialogue is used for a multitude of reasons. Tension, conflict, love between either different characters or between characters and the audience.



Lossy sound compression:
The word lossy is used in digital audio to describe a type of compression used to store sound data.
- Discards some information. This signal loss means that the encoded audio isn't identical to the original
- Smaller file size, lower quality sound. 

Lossless sound compression:
Lossless compression is a class of data compression algorithms that allows the original data to be perfectly reconstructed from the compressed data.
Lossless data compression is used in many applications. For example, it is used in the ZIP file format and in the GNU tool gzip.
Lossless compression is used in cases where it is important that the original and the decompressed data be identical, or where deviations from the original data would be unfavourable.



 Lossless audio formats are most often used for archiving or production purposes, while smaller lossy audio files are typically used on portable players and in other cases where storage space is limited or exact replication of the audio is unnecessary.


WAV: 
- A WAV file is a raw audio format created by Microsoft and IBM. The format uses containers to store audio data, track numbers, sample rate, and bit rate.
- Uncompressed lossless audio.

AIFF:
Audio Interchange File Format (AIFF) is an audio file format standard used for storing sound data for personal computers and other electronic audio devices
- Uncompressed pulse-code

MPEG:
 MPEG (Moving Picture Experts Group) Video file. Videos in this format are compressed using either MPEG-1 or MPEG-2 compression.








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