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A PDF file is organized using ASCII characters, except for certain elements that may have binary content. The file starts with a header containing a magic number (as a readable string) and the version of the format, for example %PDF-1.7. The format is a subset of a COS ("Carousel" Object Structure) format. [23]
An audio file format is a file format for storing digital audio data on a computer system. The bit layout of the audio data (excluding metadata ) is called the audio coding format and can be uncompressed, or compressed to reduce the file size, often using lossy compression .
This immersive sound format expands creative opportunities for the use of sound beyond what was achievable with older 5.1 and 7.1 surround sound systems. The greater dynamic range of the new systems, coupled with the ability to produce sounds at the sides, behind, or above the audience, provided the audio post-production team new opportunities ...
Sound recording and reproduction is the electrical, mechanical, electronic, or digital inscription and re-creation of sound waves, such as spoken voice, singing, instrumental music, or sound effects. The two main classes of sound recording technology are analog recording and digital recording .
A sound effect (or audio effect) is an artificially created or enhanced sound, or sound process used to emphasize artistic or other content of films, television shows, live performance, animation, video games, music, or other media.
Writing, recording and re-recording, and editing the soundtrack. Adding visual effects – mainly computer-generated imagery (CGI) which is then composited into the frame. Sound design, sound effects, ADR, Foley, and music, culminating in a process known as sound re-recording or mixing with professional audio equipment.
Conversion between different audio file formats, or between different sound quality levels. Typically these tasks can be performed in a manner that is non-linear. Audio editors may process the audio data non-destructively in real-time, or destructively as an "off-line" process, or a hybrid with some real-time effects and some offline effects.
File formats often have a published specification describing the encoding method and enabling testing of program intended functionality. Not all formats have freely available specification documents, partly because some developers view their specification documents as trade secrets, and partly because other developers never author a formal specification document, letting precedent set by other ...