Audio, Video & Photography calculators
Choose a task below. Check each calculator’s assumptions and units before using its result.
Free Video Bitrate Calculator
Calculate exact video and audio bitrate to meet Discord, X, and web file limits.
Guitar Pickup Resonant Peak & Cable Capacitance Calculator
Model your electric guitar pickup as an RLC circuit. Calculate high-end resonant peak frequency (kHz), Q boost, and cable capacitance tone roll-off.
HVAC Duct Silencer Calculator - Acoustic Insertion Loss
Determine dynamic insertion loss (DIL) across 63 Hz to 8,000 Hz octave bands, airflow face velocity, aerodynamic static pressure drop, and regenerated self-noise.
Microphone Distance & Inverse Square Law Calculator
Calculate acoustic SPL drop with distance via the Inverse Square Law, multi-mic 3:1 bleed phase rule, and cardioid proximity bass boost.
ND Filter Calculator - Long Exposure Shutter Speed
Calculate adjusted long exposure shutter speeds when mounting Neutral Density (ND) filters for smooth water, moving clouds, and cinematic video.
Room Reverberation Time RT60 Calculator - Sabine Acoustic
Determine room acoustic decay time in seconds using classic Sabine and Eyring formulas, calculate total room absorption in Sabins, and optimize speech intelligibility.
Sound Distance Attenuation Calculator - Inverse Square dB
Determine noise level reduction over distance using the acoustic inverse square law for point sources (chillers, pumps, fans) and line sources (traffic roads).
Sound Transmission Class Calculator - STC ASTM E413
Fit 1/3-octave sound transmission loss (TL) data against the ASTM E413 reference curve, enforce 8 dB maximum single deficiency rules, and determine single-number STC ratings.
Speaker Impedance Calculator - Series & Parallel Ohms
Calculate total nominal speaker load impedance in Ohms (Ω) for series, parallel, and series-parallel audio speaker cabinet configurations.
Speaker Voice Coil Thermal Power Compression Calculator
Calculate voice coil temperature rise, hot DC resistance increase, acoustic power compression loss (dB), and amplifier power wasted as heat.
Stage Lighting Throw Distance & Beam Angle Calculator
Calculate stage beam diameter spread, field angle overlap, and target illuminance (Foot-candles & Lux) across throw distance.
Studio Acoustic Early Reflection & Comb Filtering Calculator
Calculate acoustic path length difference, latency delay (ms), and destructive comb filtering notch null frequencies from side walls, desks, and ceilings.
Timelapse Calculator - Shooting Interval & Frame Count
Determine intervalometer shooting intervals, required photo counts, and memory card storage for smooth video playback.