• Audio spectrum analyzer. Best monitors for mac. • Spectrum Display.• Waterfall Frequency Display.• Oscilloscope View.• 6 User selectable bandwidth resolutions.• User selectable center frequency.• User selectable input gain.• Works with built-in, system and USB microphones.• Displayed images can be saved to disk.• Point-and-click frequency marker.• Auto centering of marker frequency when switching bandwidth.• Choice of FFT window functions.• User selectable sample averaging. Requirements • Audio input device.

RTA Audio Free. Download RTA Audio Free and enjoy it on your iPhone, iPad, and iPod touch. Free; Offers In-App Purchases. Software input gain control. Best photo cropper app for the mac computer.