Sample Rate & Bit Depth Calculator

Dynamic range increases by a fixed amount per bit — about 6.02 dB — rather than scaling proportionally with the bit count itself, since each additional bit halves the quantization noise floor rather than doubling the useful signal range. Going from 16-bit to 24-bit adds roughly 48 dB of dynamic range, a meaningful improvement, but not the doubling the raw numbers might suggest.

The sampling theorem establishes that a digital system can only accurately reconstruct frequencies up to half its sampling rate — any real frequency content above that point gets misrepresented as a false lower frequency, an artifact called aliasing. That's the direct reason the sample rate has to be at least double the highest frequency you want to capture cleanly.

Not necessarily for playback — since human hearing tops out around 20,000 Hz, a 44,100 Hz sample rate already comfortably exceeds twice that limit, and higher rates like 96,000 or 192,000 Hz mainly benefit production workflows with heavy processing rather than final listening quality. Bit depth and proper gain staging generally matter more to perceived audio quality than pushing sample rate higher than necessary.

Dynamic Range describes audio quality — the ratio between the quietest and loudest signal a format can represent without noise or clipping — and depends only on bit depth. File Size and Data Rate describe storage and bandwidth cost, and depend on sample rate, bit depth, channel count, and duration together, so two recordings with identical dynamic range can still have very different file sizes.