How to Manage Target Curves in Smaart RTA Pro

How to Manage Target Curves in Smaart RTA Pro

Importing and deleting target curves from your device is handled through your device's file management system, which Smaart RTA accesses to display and manage target curves. Smaart RTA comes pre-loaded with the Cinema X-Curves for immediate use right out of the box.

To import Target Curves, simply send or save your target curve file to your device. For instance, email and AirDrop both work, so long as you can see the file within your device's file management system. When the file reaches the device, save it to the "TargetCurves" folder under "Smaart RTA".

Deleting and renaming Target Curves can also be done through the file management system by selecting the file's "info" and following the device prompts. You can also rename a Target Curve directly within Smaart RTA by long-pressing on its file name and using the "rename" prompt.

To create your own Target Curve or edit existing target curves, you will need to use a text editing program such as TextEdit. Instruction on this can be found in the Support section of the Rational Acoustics website.

Spectrum Target Curve Formatting

Smaart RTA target curves follow the same formatting as those for Smaart Desktop. As such, the following section is identical to the formatting guide for spectrum target curves illustrated in this support article.

Spectrum target curve files are created with four heading lines, then two columns of data separated by a [Tab]. Using spaces or commas instead will not work and can even cause Smaart to crash when imported. 

If experiencing crashing crashes after importing a target curve, it is advised that you remove it from Smaart's appropriate Target Curve folder and opened in a text editor to double-check formatting. 

The four heading lines are as follows:

• Line:
  • The Line header represents the line thickness of the target curve after import, from 1 to 5. I recommend starting starting with a size 2, as this value can be changed in Smaart/DM later. 
• Color:
  • The Color header represents the color of your target curve after import. It should be entered in HEX format. This can also be changed in Smaart/DM later.
• Show:
  • The Show header represents if the target curve will be shown on the plot or not directly after import. I recommend a value of 1 (shown) here, but you can show and hide target curves using a checkbox in the target curve manager after import.
• Band:
  • Spectrum target curves require their banding to be specified prior to being imported into Smaart. This is because spectrum target curves are locked to SPL values. When the banding setting is adjusted, so is the level at which the target curve is shown on the RTA plot. Please be sure to note what banding your data was set to on export if you are using exported data to create your target curve. Allowable values are 1, 3, 6, 12, 24 or 48 (full octave through 1/48-Octave). For example, a value of “3” means 1/3 octave banding. 
• Type (Optional):
  • Spectrum target curves have an optional line for "Type" in the header. If the Type header is not present, files are assumed to be in spectrum format. 

Once the heading is complete, data can be added to the file in "Frequency    Decibel" format (separated by a [Tab] indentation). Target curves require a minimum of 2 data entries with both frequency and decibel information in each. An example spectrum target curve is shown below: