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F.A.Q. Frequently asked questions.

EQ Training - Find Frequency Notches in a Music Mix

Switch to : Peaks (EQ boost)

Purpose

Our Discriminative Frequency Training Test used band-filtered noise to ensure a training independent from any musical content. The following test puts those frequencies back in their context, and uses a short music track instead of noise.

This custom track starts with an ultra-low frequency rumble layered with crystal clear chimes, followed by a conventional mix made from various "classic" pop instruments such as an electric bass, drums, percussions, electric piano, electric guitar and synthesizer strings, along with a male voiceover and female vocal line. The track covers the full audible spectrum and will be altered to emphasize a particular frequency band.

Training Files

The aim of this test is to familiarize the listener with the sound of the different frequency bands, not subtle frequency abnormalilties. To serve this purpose, the original recording has been abusively EQ'd using a massive 24dB (!) notch filter, centered around the target frequencies, spaced one octave apart.

Those who mastered our Discriminative Frequency Training Test will go straight to the blind test section. Others will listen to each file and associate the missing octave band with the value of its center frequency.

wav ↓	wav ↓	wav ↓	wav ↓	wav ↓
31Hz	63Hz	125Hz	250Hz	500Hz
wav ↓	wav ↓	wav ↓	wav ↓	wav ↓
1kHz	2kHz	4kHz	8kHz	16kHz
wav ↓
Original

Test Files

For each column, tick the appropriate radio button. When the 10 files have all been labeled, click the "Submit" button to get your score. Reload the page as often as you want to perform new tests.

31Hz
63Hz
125Hz
250Hz
500Hz
1kHz
2kHz
4kHz
8kHz
16kHz
Original

Once you have succeeded in getting 9 or higher without listening to the individual labeled files during the test, your training will have been successfully completed.

External Links

• Equalization by the Octave
• Equalization @ Wikipedia