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2. Audio frequency - Wikipedia

   en.wikipedia.org/wiki/Audio_frequency

   t. e. An audio frequency or audible frequency ( AF) is a periodic vibration whose frequency is audible to the average human. The SI unit of frequency is the hertz (Hz). It is the property of sound that most determines pitch. [ 1] The generally accepted standard hearing range for humans is 20 to 20,000 Hz. [ 2][ 3][ 4] In air at atmospheric ...

3. EBU R 128 - Wikipedia

   en.wikipedia.org/wiki/EBU_R_128

   EBU R 128. EBU R 128 is a recommendation for loudness normalisation and maximum level of audio signals. It is primarily followed during audio mixing of television and radio programmes and adopted by broadcasters to measure and control programme loudness. [1] It was first issued by the European Broadcasting Union in August 2010 and most recently ...

4. Take 20% Off Raycon Earbuds, Headphones and Speakers ... - AOL

   www.aol.com/entertainment/20-off-raycon-earbuds...

   These Basic Earbuds. The Work Earbuds Classic. Raycon. For everyday wear that’s easy to take in and out, these buds are the perfect pick! See it! Get The Work Earbuds Classic (originally $120 ...

5. Comparison of audio coding formats - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_audio_coding...

   For example, MP3 and AAC dominate the personal audio market in terms of market share, though many other formats are comparably well suited to fill this role from a purely technical standpoint. First public release date is first of either specification publishing or source releasing, or in the case of closed-specification, closed-source codecs ...

6. Audio system measurements - Wikipedia

   en.wikipedia.org/wiki/Audio_system_measurements

   Audio system measurements are a means of quantifying system performance. These measurements are made for several purposes. Designers take measurements so that they can specify the performance of a piece of equipment. Maintenance engineers make them to ensure equipment is still working to specification, or to ensure that the cumulative defects ...

7. Best Noise-Cancelling Earbuds: Here’s Where To Get ... - AOL

   www.aol.com/entertainment/best-noise-cancelling...

   While noise-cancelling headphones are great, noise-cancelling wireless earbuds may have the upper hand when it comes to being more compact and lightweight. If you consider yourself an active ...