If you mix, recognizing frequencies is probably the most valuable technical skill you can develop. With that in mind, here’s a product I love and have been using for years.
Quiztones is an ear training app for audio engineers. Quiztones scores you on a number of listening tests designed to improve your ability to recognize specific frequency ranges. The simplest is a series of sine wave frequencies, choosing from options at least an octave apart. The most challenging is a +5 dB EQ boost on an audio track you choose from your library, or the built-in instrument samples in the Quiztones library. All quizzes consist of ten multiple choice “questions” and are scored out of 1000.
University courses have been developed to teach frequency recognition and there are a number of expensive CD sets out there as well. All of these options are tremendously helpful, but none are as convenient and inexpensive as Quiztones. With just a pair of headphones you can be scored on a number of extremely helpful audio tests any time, any place, in about one minute.
The app is available for iOS, Android and Mac for $4.99. There is also a Pro upgrade for $2.99 which unlocks new Gain quizzes and more advanced Tone and EQ quizzes that can test your ears on differences as small as 1/3 octave apart.
Check out the Quiztones website or visit the app store links below: