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Audio Technology

The technology behind personal audio: Bluetooth versions and codecs, sound fundamentals such as frequency response and impedance, and wired and wireless connections.

20 articles
23 Best Bluetooth Headphone Adapters

23 Best Bluetooth Headphone Adapters

We compared specs for 23 Bluetooth headphone adapters to find the best options for travel, gaming, cars, and making wired headphones wireless.

Headphone Sky Editors Oct 30, 2026
23 Best Sound Meters

23 Best Sound Meters

We compared manufacturer listings for 23 sound meters to help you find the right tool for noise measurement, from professional compliance to home monitoring.

Headphone Sky Editors Oct 30, 2026
8 Best Optical Audio Cables

8 Best Optical Audio Cables

Our comparison of manufacturer specs identifies the best optical audio cables for connecting TVs, soundbars, and gaming consoles with TOSLINK ports.

Headphone Sky Editors Oct 30, 2026
Best Portable Headphone Amplifiers

Best Portable Headphone Amplifiers

We compared specs from leading brands to find the best portable headphone amplifiers for different needs, from driving high-impedance headphones to adding a bass boost.

Headphone Sky Editors Oct 29, 2026
How to Choose a Wireless Audio Transmitter

How to Choose a Wireless Audio Transmitter

A guide to selecting the right wireless audio transmitter by comparing technologies, features, and ideal use cases for music, TV, and gaming.

Headphone Sky Editors Oct 23, 2026

Choosing headphones or earbuds can be confusing. The boxes and product pages are filled with technical terms—Bluetooth codecs, driver sizes, impedance—that can feel like a foreign language. This section is here to translate. We break down the core audio technology behind your gear, explaining what the specs actually mean for your listening experience, whether you're focused on music, gaming, calls, or just blocking out the world.

Our goal is to give you the knowledge to make confident choices. Instead of telling you what to buy, we explain how things work. You'll learn which features matter for your needs, how to interpret manufacturer claims, and what trade-offs exist between different technologies. This isn't just theory; it's practical insight to help you navigate the market.

What you'll find here

  • Wireless Audio: Demystifying Bluetooth versions, codecs like AAC and aptX, and what "latency" really means for videos and games.
  • Sound Fundamentals: Core concepts like frequency response, driver types, and impedance, explained in plain language.
  • Audio Connections: A guide to plugs, ports, and cables, from traditional 3.5mm jacks to USB-C audio and proprietary docking systems.