High-Definition Audio (HD Audio)
Definition - What does High-Definition Audio (HD Audio) mean?
High-definition audio (HD audio) refers to a high-bandwidth audio signal used in recorded music. Different software has different standards of high-definition audio, but in most of them the signals are modulated using the pulse width modulation method and sampled at a greater frequency than 44100 Hz, and a depth of more than 16 bits.
High-definition audio is also known as high-resolution audio.
Techopedia explains High-Definition Audio (HD Audio)
The sound industry makes use of a high-quality audio for better quality music and other sounds. This is especially important where space is not an issue, hence large audio files, with large kBps are preferred. High-definition audio is used in commercial applications where signals are encoded such that there is a minimum loss of information of data and in some cases, the signal is enhanced by sampling at high frequency to increase the quality.
High-definition audio formats include FLAC, ALAC, WAV, AIFF and DSD. However, just because an audio file is stored in these formats, does not necessarily make it high definition.
Technology and Music: From Records to Digital Recordings
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