In [[telecommunication]], '''transcoding''' is the direct [[digital]]-to-digital conversion from one encoding scheme, such as voice LPC-10, to a different encoding scheme without returning the signals to analog form.
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Encoding into a lossy compression format will strip details from the file. Transcoding from one lossy compression format to another will compound the loss of details from the file. (eg: transcoding a sound file from [[OGG Vorbis]] to [[MP3]]). The preferred method is to save all audio "masters" in a lossless audio format such as [[FLAC]] or [[WavPack]], and then transcode directly from the lossless source file to your preferred lossy format such as [[MP3]]. This procedure preserves as much of the original audio signal as possible without introducing distortion and prevents compound loss of details from the file.
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<i>Note:</i> The transcoded signals, <i>i.e.,</i> the digital representations of analog signals may be any digital representation of any [[analog signal]], such as voice, [[facsimile]], or quasi-analog signals.
'''Source:''' From [[Federal Standard 1037C]] and from [[MIL-STD-188]]
