The implication, then, is that you could work with about 20dB more headroom in a 24-bit system without any increase in the apparent system noise over the 16-bit mode. A properly dithered 16-bit system provides a dynamic range of around 93dB, while a mid-budget 24-bit system should be able to deliver something aroundġ15dB or so. Technical Editor Hugh Robjohns replies: The characteristic defined by the word length is the available dynamic range, or where the noise floor sits in relation to the peak level. Recording at 24-bit increases the available headroom in the system, although this may not offer any practical benefits for signals recorded with microphones in an average home studio. Is it really worth me switching from 16-bit to 24-bit recording? From what I've learnt from Hugh's articles on digital audio, I'm sceptical. Is 24-bit recording any better than 16-bit recording in a home studio, given that the only qualitative difference is (apparently) the noise floor? In 99.9 percent of home studios, this difference will be masked by the ambient noise of the studio, and by preamp or mic self-noise.
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