Audio frequency recognition, Equalisers and Psychoacoustics.
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Audio frequency recognition, Equalisers and Psychoacoustics.

The interactive guide to audio - what are frequencies, how to identify them and alter them with equalisers.
4.8 (14 ratings)
Instead of using a simple lifetime average, Udemy calculates a course's star rating by considering a number of different factors such as the number of ratings, the age of ratings, and the likelihood of fraudulent ratings.
50 students enrolled
Created by Matt Wong
Last updated 6/2016
Price: $35
30-Day Money-Back Guarantee
  • 2.5 hours on-demand video
  • 10 Supplemental Resources
  • Full lifetime access
  • Access on mobile and TV
  • Certificate of Completion
What Will I Learn?
  • Identify frequencies accurately
  • Eliminate feedback
  • Use equalisers confidently
  • Apply psychoacoustics to sounds
View Curriculum
  • You will need a computer (either PC or Mac) to follow along with the interactive lessons on equalisers

Do you know how to use equalisers?

Do you understand audio frequencies?

Do you understand hearing damage and how to prevent it?

Are you a budding audio engineer?

Are you a musician?

You need this course! Don't be intimidated anymore by mixers, equalisers and sound engineers. 


In this course you will learn:

  • how humans hear
  • what hearing damage is and how to prevent it
  • how to identify any frequency
  • how to eliminate feedback
  • how to make instruments and tracks sound full using 'timbre'
  • how to use all equalisers (single band EQs, parametric EQs, graphic EQs)
  • selective vs subtractive equalising
  • how to 'ring out a room'

As a bonus you'll learn all about psychoacoustics - the manipulation of sound to 'fool' the brain.

Students love my courses! Hear what they have to say:

'Matt Wong... I can't thank you enough for what you have done for me...He [Matt] keeps you engaged and takes the loads of information in bite size form.' -Nyk

'Great pace and delivery, however the animation is amazing. Seriously one of the best courses I've seen. It's very engaging!' - Umesh

'...the editing is amazing and the pace engaging. Great work!' - Davide

'Very organized and well presented...superbly done.' -Moslem

'Of the courses I've reviewed so far yours has demonstrated the best delivery' - Yi-Choong

'This is a wonderful course--very smooth presentation and great content.' -Sally

'The video and audio are great, and the instructor certainly knows what he is talking about.' -Dr Kluge


Stop guessing and become an audio sniper. No frequency will be safe from your well-honed ears after taking this course!


30 Day Money Back Guarantee. Udemy will refund you 100% if you don't love the hard work I've put into creating this course. They won't even tell me who requested refunds. How easy and anonymous is that?!

Who is the target audience?
  • Musicians who need a better understanding of audio frequencies
  • Budding audio engineers
  • Audiophiles who want a proper understanding of sound
Compare to Other Music Mixing Courses
Curriculum For This Course
27 Lectures
How Do Humans Hear?
3 Lectures 13:11

Everything in this course is based on hearing - how and why do we hear? Our biology determines our experience of sound and this lecture forms the basis for understanding of more complex audio principles.

Preview 02:11

This lecture explains the limits of human hearing - both in volume and frequency. It also explains the most common phenomenon musicians and sound engineers experience in live settings - threshold shifts.

Preview 06:57

Exceeding the volume limits of human hearing does permanent damage. This lecture explains how damage is caused and how to avoid it.

Hearing Damage
Frequency Recognition
4 Lectures 11:39

In this lecture, learn how to identify frequencies accurately - a skill you need for the first exam.

Frequency Examples

This is the first interactive exam where you can test your ability to identify frequencies.

Live Exam 1: Identify The Frequency

The scariest and most annoying sound you can hear in a live setting. FEEDBACK! What is it and how do you prevent it?

What is Feedback?

This lecture introduces you to the secret training weapon of any good audiophile - the feedback trainer.

Feedback Trainer
7 Lectures 21:52

This lecture demonstrates the magic of Timbre - the quality that makes sounds rich.

What is Timbre?

The first element of timbre is harmonics - learn why every sound has multiple frequencies.

Timbre 1: Harmonics Create Fullness

This lecture overviews the frequency range of instruments and how you can leverage it to hide or show off an sound.

Frequency Range of Instruments

The second element of timbre - attack. Learn why attack is the most important identifying quality of a sound. Also experience the confusion of sounds with the attack removed.

Timbre 2 - Attack

The third aspect of timbre - shimmer - ensures sounds are alive. Without it, sounds die.

Timbre 3 - Atmosphere and Shimmer

The fourth aspect of timbre - sibilance - covers the most important frequencies of all for the human ear.

Timbre 4 - Sibilance (Vocals Only)

This lecture is an overall guide to frequency bands - how to target them for the desired effect.

A Guide To Frequency Bands
Equalisation (EQ)
6 Lectures 51:48

To adjust frequencies we use equalisers but there are many types. In this lecture, learn which ones to use.

The Different Types of Equalisers

A common misunderstanding with equalisers is the difference between raising some frequencies and raising all frequencies. Learn the difference in this lecture.

Equalisation vs Volume

In this lecture learn the technique of selective equalising with live demonstrations.

Selective Equalising

This lecture covers the more advanced and less well-known technique subtractive equalising.

Subtractive Equalising

Using your EQ skills, you can now 'ring out a room' to make it feedback proof. Learn how in this lecture.

Ringing Out a Room

In this interactive exam you will be practising your frequency identifying skills.

Live Exam 2: Identify The Frequency Being Altered
7 Lectures 36:23

Now that you understand the science of frequencies, it's time to learn how to apply this knowledge in manipulating the brain and its perception of sound.

Preview 06:59

In this bonus lecture you'll be visiting the virtual barber shop - a famous auditory experience.

The Virtual Barber Shop

In this lecture, learn just a few tricks that Hollywood uses to make explosions sound louder than they are.

Hollywood Explosion Psychoacoustics

In this lecture we apply psychoacoustics to an audio track to transform a mono track to stereo.

The Haas Effect

This lecture shows more psychoacoustic techniques that you can use.

Other Psychoacoustic Techniques

Most people talk in psychoacoustics, not frequencies: "it sounds warm, it sounds tinny, it doesn't shine..." Here is the cheat sheet to what frequencies they are referring to.

Psychoacoustics of Different Frequencies

This is the final exam where you can use these MP3s to practice psychoacoustics. This is the ultimate in frequency manipulation - the type of adjustments you will be making in real life.

Final Exam: Apply Psychoacoustics to Tracks
About the Instructor
Matt Wong
4.5 Average rating
237 Reviews
4,078 Students
3 Courses
Super Multi-Tasker (Pilot, Lawyer, Medical Entrepreneur)

I founded and ran a high end medical clinic for 8 years in Sydney, Australia. We spearheaded the introduction of genomic testing to the public and publishing house Penguin Books commissioned a book documenting these exploits for release in 2015.

I also created a nut manufacturing business that makes 'the best nuts on earth'. I qualified as an aircraft pilot in Sydney, trained as a lawyer at the University of Technology Sydney, and spent years leading teams both corporately and for community groups. I trained at the Australian Institute of Music - Classical Guitar, but secretly love playing the piano. I also briefly worked for Elon Musk, who is a thoroughly decent guy.

I have a 'hungry brain' that is addicted to learning, thus the lawyer/pilot/musician/manufacturer/medical entrepreneur qualifications. I believe one career is not enough. We have the ability to be much greater than we are, so don't settle; grow!