So, if the obstacle is at a distance of 17 m at least, the reflected sound or the echo is heard after 0.1 second, distinctly. This is twice the minimum distance between a source of sound and the reflector. As the speed of sound is 340 m/s, the distance travelled by sound in 0.1 second is 34 m. So the most important condition for hearing an echo is that the reflected sound should reach the ear only after a lapse of at least 0.1 second after the original sound dies off.
If the echo is heard within this time interval, the original sound and its echo cannot be distinguished. This is known as the persistence of hearing. The sensation of any sound persists in our ear for about 0.1 seconds. The forums system has lived a long and wonderful life, but it was time to quietly shut them down and investigate other avenues of discussion. Under the Capabilities tab, set the Background Modes switch to ON and select the Audio, AirPlay, and Picture in Picture option under the list of available modes. Select your app’s target in Xcode and select the Capabilities tab.
#No sound from app when using reflector 3 Pc#
Certain conditions have to be satisfied to hear an echo distinctly (as a separate sound). The PC Perspective Forums The forums are currently closed. The simplest way to configure these capabilities is by using Xcode. Ordinarily echo is not heard as the reflected sound gets merged with the original sound. As a result of reflection of sound wave from a large obstacle, the sound is heard which is named as an echo. If your music stops playing unexpectedly, use your device or Siri to start playing music again. Sound waves suffer reflection from the large obstacles. Like all waves, sound waves can be reflected.