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Free production tools
Practical, no-login tools for stage plots, technical riders, and clearer show advances. Download, print, share, or continue in Techrider.live.
64 of 64 tools
Microphone output level
Estimate microphone RMS voltage and ideal preamp output from sensitivity, sound pressure and gain.
Open toolMeasured decay time
Extrapolate a measured sound-level decay interval to 60 dB or another chosen drop.
Open toolStereo mono fold-down
Estimate RMS amplitude when left and right channels are summed or averaged for mono playback.
Open toolCamera diffraction
Compare the ideal Airy disk diameter with the sensor pixel pitch for a chosen aperture and wavelength.
Open toolADC noise budget
Compare ideal quantization noise with an analog noise floor and estimate the resulting signal-to-noise ratio.
Open toolHelmholtz resonance
Estimate the ideal resonance of a cavity and a single port with a known effective acoustic length.
Open toolFFT bins and window
Compare FFT frequency-bin spacing with the duration of the actual captured sample block.
Open toolFlash guide-number distance
Estimate nominal direct-flash distance from an ISO-100 guide number, aperture and ISO.
Open toolAudio alias frequency
Find where a fundamental or selected harmonic folds after ideal uniform sampling.
Open toolCamera hyperfocal distance
Estimate a focus distance from actual focal length, f-number and a chosen blur-circle limit.
Open toolRC high-pass filter
Estimate the cutoff and voltage attenuation of an ideal first-order passive RC high-pass filter.
Open toolCamera exposure value
Compare aperture, exposure time and ISO using setting EV and its ISO-100 equivalent.
Open toolAudio impedance loading
Estimate loaded line voltage and level change from source and input resistance.
Open toolDMX frame timing
Estimate serial DMX frame time and the corresponding maximum refresh rate.
Open toolLoudness normalization estimate
Estimate fixed gain from measured integrated loudness and preview the resulting true peak.
Open toolProjection screen luminance
Estimate on-axis white-screen luminance from usable projector lumens, image area and screen gain.
Open toolUncorrelated SPL sum
Combine two independent sound pressure levels measured at the same receiving position.
Open toolND filter density
Convert logarithmic optical density to ideal light transmission and exposure reduction in stops.
Open toolAudio beat frequency
Compare two steady pure-tone frequencies for tuning and interference checks.
Open toolCamera horizontal field of view
Estimate a rectilinear lens’s horizontal angle from focal length and active sensor width.
Open toolOmni critical distance
Estimate where direct and diffuse reverberant energy are equal for an omnidirectional source.
Open toolColor temperature Mired shift
Compare source and target color temperatures using signed reciprocal-temperature difference.
Open toolSabine reverberation estimate
Estimate a room’s 60 dB decay time from volume and equivalent absorption area.
Open toolLighting illuminance estimate
Estimate centre illuminance from candela and throw distance for a fixed luminaire setting.
Open toolRoom Axial Mode Calculator
Estimate the first three axial resonance frequencies along each dimension of a rectangular room.
Open toolCamera Shutter Angle Calculator
Convert shutter angle and exact fractional capture rate into exposure time, reciprocal shutter speed and frame interval.
Open toolComb Filter Frequency Calculator
Predict the first three cancellation frequencies and tooth spacing when a signal is mixed with one delayed copy.
Open toolProjection Blend Canvas Calculator
Calculate the unique horizontal canvas width and overlap budget for a row of identical projectors.
Open toolCompressor Gain Reduction Calculator
Calculate an ideal hard-knee compressor’s steady-state output and gain reduction from threshold, ratio and makeup gain.
Open toolStage Diagonal Calculator
Calculate a rectangular stage’s theoretical corner-to-corner distance, perimeter and area for layout notes.
Open toolEqual Power Pan Calculator
Calculate left and right gains for a mono source using a square-root equal-power pan law.
Open toolStage Deck Layout Calculator
Plan a rectangular grid of identical stage decks, with module counts, covered dimensions and excess area.
Open toolAudio Crest Factor Calculator
Compare peak and RMS levels on the same amplitude reference to interpret crest factor and peak-to-RMS ratio.
Open toolSample Clock Drift Calculator
Estimate sample-count and nominal-playback duration differences caused by a constant relative recording clock error.
Open toolFilter Bandwidth and Q Calculator
Interpret a frequency band from its lower and upper edges: find geometric center, bandwidth, Q and octave width.
Open toolMedia Transfer Time Calculator
Estimate how long an audio or video deliverable occupies a network link from file size, link rate and usable throughput.
Open toolAudio Delay Phase Calculator
Translate electronic delay into phase lag at one frequency for interpreting system measurements.
Open toolStage Sightline Calculator
Check the height of a straight audience-to-target sightline at an intervening obstacle and export the clearance.
Open toolAudio Pitch Transposition Calculator
Find a transposed frequency from a reference tone, semitones and cents for tuning and playback preparation.
Open toolVideo Aspect Fit Calculator
Fit a source image inside a screen canvas without cropping and calculate its centered margins in pixels.
Open toolLED Wall Resolution Calculator
Calculate canvas resolution from cabinet rows, columns and pixels per cabinet.
Open toolSpeaker Coverage Width Calculator
Estimate nominal coverage width from a speaker angle and listener distance.
Open toolVideo Frame Duration Calculator
Convert a frame count and frame rate to elapsed seconds.
Open toolAudio Gain Calculator
Convert gain in decibels to amplitude and power ratios.
Open toolAudio Level Converter
Convert dBu, dBV and RMS volts, compare reference levels, and export a clear signal-level note. Free, private and no login required.
Open toolSound Wavelength Calculator
Find full, half and quarter wavelengths in meters and feet from frequency and air temperature, with period and a printable result.
Open toolAudio Buffer Latency Calculator
Compare buffer sizes and sample rates. Calculate theoretical one-buffer and two-buffer times, then copy or print the comparison.
Open toolSetlist Duration Planner
Arrange songs, include time between them and check your show slot. Copy, download or print the running order with elapsed start and end times.
Open toolRack Space Planner
Arrange rack equipment from bottom to top, check used and free U, and export a numbered front elevation plan.
Open toolSPL Distance Calculator
Estimate how direct sound level changes with distance from a point source, with a reference-distance comparison table.
Open toolDMX Address Planner
Assign DMX start addresses to fixture groups, see channel use and carry whole fixtures into the next universe.
Open toolProjection Size & Throw Calculator
Calculate screen width, height, diagonal and lens-to-screen distance from image size or available throw distance.
Open toolBPM Delay Calculator
Turn a tempo into straight, dotted and triplet delay times, from whole notes to 1/64 notes.
Open toolMultitrack Recording Storage Calculator
Plan uncompressed recording space from channel count, duration and audio format, with extra capacity and backup copies.
Open toolSound Delay Calculator
Convert sound travel distance to milliseconds, reverse the calculation, or compare two source paths to the same listening point. Free, instant, and no login required.
Open toolCable & Gear Label Maker
Turn names or a numbered sequence into paired cable labels and equipment tags. Preview exact-size sheets, then print on A4 or US Letter without an account.
Open toolStage Power Calculator
Turn equipment nameplate values into a transparent stage-load estimate with adjustable headroom and user-defined circuit review thresholds.
Open toolWireless Frequency Coordination Checklist
Build a complete wireless inventory and role-owned coordination brief without pretending to calculate legal, interference-free frequencies.
Open toolTech Rider Validator
Paste a technical rider to find missing sections, ambiguous wording, and channel issues—entirely in your browser. Matching rules recognize English wording only; translated results do not add support for analyzing riders written in other languages.
Open toolFestival Changeover Planner
Build a role-owned festival timeline, expose impossible changeover windows, and a practical run of show.
Open toolInput List & Patch Sheet Generator
Build a clear channel list, catch duplicate channels and unconfirmed phantom power, then CSV, Markdown, or a print-ready patch sheet.
Open toolTech Rider Checklist Generator
Generate a role-aware production checklist for concerts, festivals, corporate events, or theatre—then assign owners, dates, and it.
Open toolInteractive Stage Directions Diagram
Switch between performer and audience views to understand stage left, stage right, house left, upstage, and downstage—then download a print-ready diagram.
Open toolStage Plot Symbol Library
Browse and search 221 production-ready stage plot icons. Download individual symbols or build a printable legend for your rider.
Open toolOne source of truth
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