16 Free AV Production Tools Every Audio, Video & Lighting Technician Should Know
Professional AV production requires accuracy, preparation, and the right tools. Whether you're configuring an LED video wall, calculating audio delay, testing displays, building a DMX lighting patch, or preparing a live event rundown, having reliable production utilities can save time and prevent costly mistakes.
That's why Booked AV , the AV gig marketplace for audiovisual freelancers and production professionals, has introduced a growing collection of 16 free online AV production tools .
These browser-based tools are designed for audio engineers, video technicians, LED wall specialists, lighting programmers, show callers, production managers, and AV freelancers working in corporate events, concerts, conferences, trade shows, broadcasts, and live productions.
Explore All 16 Free AV Tools on Booked AV
Free LED Wall and Video Production Calculators
Planning professional video systems requires precise calculations. The following tools help technicians determine LED resolutions, content dimensions, aspect ratios, and video scaling requirements before arriving onsite.
1. LED Wall Pixel Calculator
Launch the Free LED Wall Pixel Calculator
The LED Wall Pixel Calculator helps video engineers determine an LED display's estimated native pixel resolution using its physical dimensions and pixel pitch.
LED video walls are available in different pixel pitches, including 1.9mm, 2.5mm, and 3.9mm. The pixel pitch represents the distance between adjacent pixels and affects how many pixels fit within the display.
How to use it: Enter the LED wall's physical width. Enter the wall's physical height. Choose the LED pixel pitch. Review the calculated horizontal and vertical resolution. Use the results to help prepare content and configure video processing.
Example: A 4-meter-wide by 2.25-meter-high LED wall with a 2.5mm pixel pitch has an estimated native resolution of 1600 × 900 pixels.
Who should use it? LED technicians, V1 engineers, video wall designers, playback operators, and media server technicians.
Always confirm the final pixel dimensions against the actual LED cabinet specifications.
2. Aspect Ratio Calculator
Launch the Free Video Aspect Ratio Calculator
Correct aspect ratios are essential for professional video production. Incorrect dimensions can cause stretched images, black borders, or unwanted cropping.
The Aspect Ratio Calculator helps video technicians and graphics teams determine proportional dimensions for displays and video content.
How to use it: Enter the original video or display dimensions. Select the desired aspect ratio. Review the corresponding proportional dimensions. Use the results when preparing playback files, graphics, or display layouts.
Example: Standard HD video uses a 16:9 aspect ratio, while custom scenic LED walls may require ultra-wide or nonstandard formats.
Best for: Video engineers, projectionists, media server operators, graphic designers, and LED content creators.
3. Resolution and Scaling Calculator
Launch the Resolution and Scaling Calculator
Video sources and display systems do not always use matching resolutions. The Resolution and Scaling Calculator helps technicians understand how source content fits into destination displays.
The tool evaluates scaling ratios, Fit and Fill modes, letterboxing, pillarboxing, and cropping.
How to use it: Enter the source video resolution. Enter the destination display resolution. Compare Fit and Fill scaling options. Review the scaling dimensions and potential cropping. Use the results to plan playback or processor settings.
Example: Fitting 1920 × 1080 content inside a 1920 × 1200 display preserves the original image but produces black bars above and below it. Filling the display instead requires cropping some image content.
Best for: V1 and V2 operators, video switcher technicians, projection engineers, and AV system designers.
4. LED Content Size Calculator
Launch the LED Content Size Calculator
The LED Content Size Calculator determines the exact video canvas resolution using the pixel dimensions of individual LED cabinets and the number of cabinets in the installation.
It is particularly helpful when creating custom graphics, animations, or media server compositions.
How to use it: Enter the pixel width of an individual LED cabinet. Enter the cabinet's pixel height. Enter the number of cabinets installed horizontally. Enter the number of cabinets installed vertically. Review the calculated total pixel canvas.
Example: An LED wall using eight cabinets horizontally and four vertically, with each cabinet measuring 192 × 192 pixels, produces a 1536 × 768-pixel canvas.
This calculation helps content creators deliver media that matches the display's native resolution.
Best for: LED wall technicians, media server engineers, video playback operators, and production graphic designers.
Free Audio, Lighting, and Screen Planning Calculators
5. DMX Universe Calculator
Launch the Free DMX Universe Calculator
Lighting fixtures require DMX channels for controlling intensity, color, movement, effects, and other functions. A standard DMX512 universe contains 512 addressable channel slots.
The DMX Universe Calculator simplifies fixture addressing and helps technicians organize lighting patches.
How to use it: Enter the number of lighting fixtures. Select the fixture's DMX channel mode. Enter the starting universe. Choose the first DMX address. Generate the fixture addressing plan. Export the resulting patch sheet as CSV when needed.
The calculator assigns consecutive addresses and advances into additional universes when required.
Best for: Lighting directors, L1 and L2 technicians, moving-light programmers, lighting designers, and concert production crews.
Always verify fixture modes and universe assignments against the lighting console and actual connected fixtures.
6. Audio Delay Calculator
Launch the Free Audio Delay Calculator
Accurate speaker delay settings are essential when aligning distributed audio systems.
Large ballrooms, outdoor concerts, convention centers, and corporate events often use main PA systems, delay speakers, front fills, and additional loudspeaker zones.
The Audio Delay Calculator converts acoustic distance into milliseconds and digital audio samples.
How to use it: Enter the acoustic distance. Adjust the applicable environmental settings. Review the estimated sound travel time. Check the equivalent digital audio sample count. Use the information as a starting reference for system alignment.
Example: At approximately 20°C, sound takes about 29.1 milliseconds to travel 10 meters.
At a sample rate of 48 kHz, each millisecond corresponds to 48 samples.
Best for: A1 engineers, system engineers, audio technicians, DSP programmers, and AV installers.
Calculated acoustic travel time is only a starting point. Final system alignment should be verified using appropriate measurement techniques.
7. Screen Size and Viewing Distance Calculator
Launch the Screen Size and Viewing Distance Calculator
Choosing the correct screen dimensions is critical for audience visibility, particularly during corporate presentations and conferences.
The Screen Size and Viewing Distance Calculator evaluates screen dimensions and viewing geometry.
How to use it: Enter the display's diagonal size. Select its aspect ratio. Enter the audience viewing distance. Review the calculated screen width and height. Evaluate viewing angle and screen-height distance.