High-resolution audio is generally referred to audio that has a higher sampling frequency and bit depth than CD, which is 16-bit/44.1 kHz. High-resolution audio files usually use a sample frequency of 48 kHz and higher at 24-bit depth.
(Sample frequency means the number of times samples are taken per second then the analog sound waves are converted into digital. The more bits there are, the more accurately the signal can be measured so that 16-bit to 24-bit can see a noticeable leap in audio quality).
The main benefit of high-resolution audio files is better sound quality. When comparing the bit-rate data, the highest quality MP3 has a bit-rate quality of 320 kbps, whereas CD and 24-bit/96 kHz files have uncompressed bit-rates at 1411 kbps and 4,608 kbps respectively. With more audio data information, high-resolution audio tends to produce greater detail and texture, bringing listeners closer to the original studio performance.
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