Audio engineering maths for agents: sample rates, bit depth, bitrates, dB sums, SPL, LUFS, latency, tuning ratios and room modes.
payments ON MAINNET (real money) · 12 live endpoints
| Endpoint | Price | What it answers |
|---|---|---|
GET /bit-depth | $0.02 | Dynamic range, levels and smallest step for a PCM bit depth, theoretical SNR, and the bit depth needed for a dB range. |
GET /bitrate-size | $0.02 | Audio file size from bitrate and duration, or the bitrate or duration it implies; PCM size from rate, depth and channels. |
GET /buffer-latency | $0.02 | Audio buffer size to latency in ms (one way and round trip) at a sample rate, or the buffer needed for a latency target. |
GET /db-sum | $0.02 | Add, average or subtract sound levels in dB: total of several sources, N identical sources, or background-corrected level. |
GET /dbfs | $0.02 | Convert between linear amplitude and dBFS, and get the RMS level and crest factor of a sine, square, triangle or sawtooth. |
GET /interval-ratio | $0.02 | Convert a frequency ratio (3:2) to cents and semitones or back, name just and Pythagorean intervals and commas, apply to Hz. |
GET /lufs-math | $0.02 | Loudness maths: gain to a LUFS target or platform, resulting true peak vs ceiling, or combining segment loudness. |
GET /room-modes | $0.02 | Room mode frequencies (axial, tangential, oblique) for a rectangular room, plus Schroeder frequency from RT60. |
GET /sample-rate | $0.02 | Nyquist frequency for a sample rate, plus the alias frequency and samples per cycle of a tone, and the guard band above 20 kHz. |
GET /sound-wavelength | $0.02 | Speed of sound in air at a temperature, wavelength and period for a frequency or the reverse, with delay per metre. |
GET /spl-distance | $0.02 | Sound level at another distance (inverse-square law; line sources fall 3 dB per doubling), or the distance for a level. |
GET /tuning-temperament | $0.02 | Frequencies, cents and ratios of the 12 notes in equal, 5-limit just, Pythagorean or quarter-comma meantone tuning. |
GET /catalog returns this list as JSON. Activity hub · uptime.
Results are computed locally from standard audio, acoustics and loudness formulas, provided as is, with no warranty. Loudness targets are commonly published conventions that platforms change; verify them before delivery. Not for hearing-safety or legal noise compliance. Every paid response carries a disclaimer field.