Visualizing Frequency and EQ #MusicMonday

When was the first time you saw a graphic equalizer? And when was the first time you did anything with it other than turn up the bass? And what does it even do, really? And what is it equalizing? It turns out the whole thing is all about frequency. Here’s more from Ethan Hein:

To understand how EQ works, you first need to learn what a frequency is. If you are a musician, this will be easy, because frequency is just another name for pitch. All sounds are produced by vibrating objects. Pitched sounds are produced by regular, steady vibrations. The faster an object vibrates, the higher the pitch it produces. Frequency is a measure of how many cycles of vibration there are per second: how many times the speaker cone goes in and out, how many times the guitar string flexes back and forth, how many times your vocal cords flap, how many times the air pushes harder or more gently against your eardrum.

Now that you know how to visualize the frequency spectrum, you are ready to understand EQ: it’s a device or software program that can cut or boost specific ranges of frequencies. An EQ might be as simple as the bass and treble knobs on a stereo, or it might give you individual control of dozens of frequency bands… EQ has two sets of purposes, the practical ones and the creative ones. The practical uses are easy to understand: sometimes there are frequencies that you want to get rid of.

Learn more!

Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here:

Join Adafruit on Mastodon

Adafruit is on Mastodon, join in!

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Join over 36,000+ makers on Adafruit’s Discord channels and be part of the community!

CircuitPython – The easiest way to program microcontrollers –

Maker Business — “Packaging” chips in the US

Wearables — Enclosures help fight body humidity in costumes

Electronics — Transformers: More than meets the eye!

Python for Microcontrollers — Python on Microcontrollers Newsletter: Silicon Labs introduces CircuitPython support, and more! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi

Adafruit IoT Monthly — Guardian Robot, Weather-wise Umbrella Stand, and more!

Microsoft MakeCode — MakeCode Thank You!

EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — #NewProds 7/19/23 Feat. Adafruit Matrix Portal S3 CircuitPython Powered Internet Display!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at !

No Comments

No comments yet.

Sorry, the comment form is closed at this time.