Audio Processing Flashcards
What is audio processing?
Audio processing enables the production of high quality audio content across various platforms through capturing, enhancing, and manipulating sound signals. Whether making music, broadcasting content, or interacting with voice recognition systems, audio processing technologies ensure sound is delivered with clarity, reliability, and impact. As multimedia applications continue to evolve, the role of audio processing in shaping the future of digital media remains unquestionably significant.
How does audio processing work?
Audio processing begins with capturing sound waves, which are analog signals. These sound waves are transformed into digital signals that computers can understand and process. This transformation is achieved through a process called analog to digital conversion, or ADC. The ADC process samples the sound wave at various points in time, quantifying each sample with a digital value. This digital representation is crucial for further processing and manipulation of sound in various applications. One of the fundamental techniques in audio processing is compression. Audio compression reduces the file size of sound recordings, without significantly impacting the sound quality. This is particularly important in the age of digital media, where storage and bandwidth are valuable commodities.
What are the two types?
There are two types of audio lossless and lossy. Lossless compression includes formats such as FLAC, which stands for free lossless audio codec, and ALAC, or Apple lossless audio codec. It ensures that audio files are compressed without any loss of information, allowing for an exact reconstruction of the original sound.
Lossy compression formats include MP3 or MPEG audio layer three, and AAC, which stands for advanced audio coding. These formats achieve more significant file size reduction by discarding certain audio details, which can result in a decrease in sound quality.
What are further steps to audio processing?
-Sampling
-Quantization
-Equalization
What are (2) important applications?
-Broadcasting
-Voice recognition
