MULTIPLE CITIES: NBC may have violated federal rules with story about today’s test of the Emergency Alert System. The network ran the piece along with the audio tones that trigger the system on the ...

Test tone in Windows is used to check the balance between the left and right speakers and or headphones on your PC. However, there have been reports from Windows 10 ...

This surprisingly tough web game, from the Music Lab at the Harvard University Department of Psychology, tests how well you can distinguish tones by pitch. Put on your headphones and judge—as fast as ...

On Tuesday, Hoosier Energy and the Sullivan County Emergency Management Agency will perform annual tests of county emergency tones. This check will include activating the horns twice during the day.