Free Tool for System Engineers

Smaart Target Curve Generator

Build custom target curves for Rational Acoustics Smaart and export a clean .crv file in seconds. Start with a preset, drag points on the graph, fine tune the shape, then download straight into your workflow.

Export Format .CRV Ready for Smaart import with line, color, show, tolerance and offset headers.
Frequency Range 20 Hz - 20 kHz Anchors snap to practical tuning frequencies so edits stay useful on site.
Workflow

Click anywhere on the graph to add a point. Drag points to reshape the curve. Right click a point to delete it. Undo and redo are built in.

01

Pick a starting curve

Load a house curve or a known reference so you are not rebuilding common shapes from scratch.

02

Shape the response visually

Use the live graph and custom point editor together. Changes update immediately in both places.

03

Export a clean file

Download a ready-to-import .crv file with the required Smaart headers already formatted.

Curve Setup

Everything you need to name, shape and export the target curve without leaving the page.

Choose a preset, then tweak it to suit the room, rig or taste.
One point per line using frequency and level. Example: 63 10.

Live Curve Editor

The chart updates in real time and the export reflects exactly what you see here.

Points 0
Low Anchor -
High Anchor -
Drag points to reshape the curve Click to add a point Right click to delete a point
Frequencies snap to common live sound anchor points from 20 Hz to 20 kHz. Exports use Type, Line, Color, Show, Tolerance and Offset headers.

Quick FAQ

Short answers for the questions people usually ask before importing into Smaart.

What is a Smaart target curve?
A target curve is a reference frequency response used while tuning a PA with transfer function or RTA measurements. Most engineers do not aim for perfectly flat; they aim for a response that translates well in a real venue.
What file format does Smaart use?
Smaart target curves use the .crv format. This tool exports the required header values and the frequency / dB pairs in the format Smaart expects.
Can I build my own house curve here?
Yes. Start from a preset or from scratch, drag points to match your preferred tonal shape, then download and save it as part of your usual tuning workflow.

Useful Notes

The goal is to make the tool practical on site, not just pretty in a browser.

  • Preset curves are just starting points. Treat them as references, then adjust for the box, room and gig.
  • Undo, redo and copy points make it easy to compare variations before you export.
  • If you want a clean baseline, hit reset and build a new shape from scratch.
  • The graph range auto-expands if your points go beyond the default +/-18 dB view.