Developing Linux Device Drivers For Audio Codec

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Miss.Sapana S. Kukade

Abstract

For coding and decoding or compression and decompression of digital data according to a given audio file format or streaming media audio
format, one computer program is there in software called as "audio codec". This can effectively reduce the storage space and the bandwidth required
for transmission of the stored audio file. Most codecs are implemented as libraries which interface to one or more multimedia players. codec
implementations for various platforms and environments has inspired us to develop a tool that makes it easy to implement multi-codec applications
like MP3 Players, IP phones, call center monitoring, or audio players/recorders. In hardware, "audio codec" refers to a single device that encodes
analog audio as digital signals and decodes digital back into analog. For the linux operating system we are developing a device driver for the
application of “audio codecâ€.


Keywords: - Audio codec, ALSA, Linux, Driver, sound card. Audio

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