The Basic Training Method

The overall training process involves ongoing learning and testing yourself. Both learning and test exercises consist of audio samples, which we will call examples. Each example is a 10-30 seconds’ long chunk of either pink noise (generated on each application launch) or music.
Technically, any external audio file of a supported format, stored locally on your device, can be used instead for the latter. So, you could further experiment with recordings of speech, different sounds, natural or synthetic noises, whatever you have in your audio collection.

The method behind every example is fairly simple. It begins normally, with no spectral changes. After several seconds, the octave or 1/3-octave graphic equalizer (EQ) which boosts or cuts the amplitude of one or two frequency bands, is switched on automatically. After some more seconds, the EQ is switched off again, and the sound is returned to its normal (non-equalized) state.

Note: The current proportion of equalized part length versus sum length of non-equalized ones is hard-coded at 40/60 per cent. Therefore, if we have 10 seconds length example, this would be: 3sec EQ Off, 4sec EQ On and 3sec EQ Off respectively. The option to adjust this setting is planned to be introduced in future versions.

Regardless of the audio source material and the EQ settings, the recommended approach remains the same.

• First, you learn and warm-up by listening to examples, trying to memorize and internalize the sound of different frequency ranges.
  Don’t be scared; relax, listen, watch the highlighted sliders and frequency values on the screen, and let your brains do the job ;-)!
• Second, you take a test which is nothing but a sequence of ten similar examples with randomly chosen frequency values and boost/cut options (where available), which you guess, and get a score to track your progress.

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