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What is dynamic range? The gap between loud and quiet

Dynamic range is the ratio between the loudest and quietest values a system or a recording can hold, measured in decibels. Here is what it means for formats, for hearing and for a finished track, with sources checked on 27 Oct 2026.

Key facts

  • Dynamic range is the ratio between the largest and smallest measurable values of a quantity, usually expressed in decibels in audio.
  • Undithered 16-bit audio gives about 96 dB of dynamic range; 24-bit gives 144 dB. Human hearing spans roughly 140 dB, though not all at once.
  • The EBU measures the dynamics of a programme as Loudness Range (LRA): the gap between the 10th and 95th percentiles of its short-term loudness, in LU.

Dynamic range is the ratio between the largest and smallest values a system can measure or reproduce, which in audio means the distance, in decibels, between the loudest sound and the quietest one above the noise (Wikipedia).

The term is used in two different ways, and mixing them up causes most of the confusion around it.

Dynamic range of a system

This is the ceiling a format or device gives you. Undithered 16-bit audio, the CD standard, offers about 96 dB; with noise-shaped dither the perceived range can reach 120 dB or more. 24-bit audio affords 144 dB. Human hearing spans roughly 140 dB, though not all at the same moment (Wikipedia). For how bit depth sets that number, see sample rate and bit depth explained.

Dynamic range of a recording

This is how much a track actually moves between its quiet and loud passages. Broadcasters measure it as Loudness Range (LRA). The EBU Tech 3342 spec defines LRA as the difference between the 10th and 95th percentiles of the distribution of short-term loudness, so a fade-out or one unusually loud moment does not skew the figure. It is reported in LU, the same unit as LUFS differences.

Compression is the main tool that shrinks it; see compression basics.

Where you'll see it

What we think

The format's dynamic range is almost never your problem: 24-bit already exceeds what a room, a microphone or an ear can use. The number that matters is the one your mix earns. Our view is that the useful habit is to check a master's LRA alongside its integrated loudness: two tracks at the same LUFS can feel completely different, and LRA tells you why. Treat "more dynamic range" as a choice per genre, not a virtue in itself.

Sources

  1. Dynamic range, Wikipedia. Accessed 27 Oct 2026.
  2. EBU Tech 3342: Loudness Range, European Broadcasting Union (primary source). Accessed 27 Oct 2026.

Researched with AI assistance, written and checked by WATMM Desk.

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