Frequently Asked Questions

How do I add an EQ point?
You can add an EQ point by double-tapping anywhere on the EQ / spectrum view. To move a point, tap and drag it.
Why is “number of bands” labeled as 1/3, 1/6, 1/12 and 1/24?
These fractions indicate the number of bands per octave. Dividing the frequency spectrum in equal steps relative to an octave is more useful than equal steps in Hertz, as human hearing is more sensitive to differences in frequency in the low end of the spectrum than in the high end.
My RTA is not moving.
Make sure the Freeze button above the RTA is not on. When connected to an external source or to Audiobus, check to see that sound is indeed being sent to Level.24.
The sound is distorting, why?
Depending on the input signal, boosting – either using the EQ, the EQ Gain slider or the Compressor Output Gain – will cause internal distortion. Adjust any of these to avoid distortion
I hear no sound!
When no headphones or external audio hardware are attached and you’re not using Level.24 in an Audiobus configuration, the built-in microphone and speakers are selected as input and output. To avoid feedback, the output sound is muted when both built-in microphone and speaker are active.
What does the GR meter indicate?
The GR meter shows the amount of Gain Reduction introduced by the Compressor and Limiter.
How many EQ points can I add?
Level.24 features 12 parallel bandpass filters, so you can add a total of 12 points.
How do I adjust Q?
The Q factor or steepness of the individual EQ points can be changed by pinching in and out on a selected EQ point. Tap a point to select it, it will glow when selected.
My EQ or Compressor settings have no effect!
Check the buttons in the top bar to make sure the sound processing modules are enabled.
Enabling the Compressor makes my sound softer.
Since compression attenuates the sound when its volume is over the threshold level, an overall drop in volume may be perceived. Use the Compressor’s Output Gain slider to make up for this loss in overall volume.
How come a single sine wave input affects multiple bands in the RTA?
The RTA’s bands are in fact very narrow filters. To support low latency as well as high precision in the low frequencies, these filters can not be designed as perfect ’brick wall’ filters, and therefore some ’bleeding’ into neighboring frequency bands will occur.
Can I process audio from other apps?
Level.24 supports Audiobus for inter-app audio connectivity, so it can receive sound from and send sound to other Audiobus-enabled apps.
What is the difference between the various volume sliders?
In the bottom left of the screen you’ll find the EQ Gain slider, which adjusts the gain of the signal directly after equalization. In the Compressor & Limiter view the first slider, called Output Gain, adjusts the gain of the signal after compression. The Master Volume, found under settings in the top right of the screen controls your iPad’s volume, which you can also adjust using the hardware buttons on your iPad.
How do I rename a recording?
By default a new recording is named “Untitled Recording”. To change the name, make sure you finished recording, then tap Open to view your recordings. Tap Edit in the top right, then tap the recording you wish to rename, and the keyboard will appear. When done, tap Done on the keyboard.
Why doesn’t the EQ curve pass through the EQ points (as happens with Bass Boost)?
Each point represents a single parametric band filter. You can add up to 12 points, and closely positioned points will have an accumulative effect. The EQ curve shows the resultant filters’ frequency response. Select Show Individual EQs under Settings in the top right of the screen to show the contribution of each individual filter.
What does the Low Latency switch do?
The switch toggles Low Latency mode on and off. With Low Latency mode enabled, Level.24 introduces virtually no delay between the sound’s input and output. However, not all hardware is compatible with the low latency setting, and Audiobus currently doesn’t support it.

Comment, Request & Bug Report

If you have any comments, requests or bugs to report regarding Level.24, please contact us.
Please specify the iOS version you are using.