one speaker 100 watts (70 desibel) one side of a room, against 4 speakers, each 100 watts (70 desibel) opposite side of the room, equispaced away from the measuring device. all speakers transmitting from the same source, forget about the surround effect which side would be louder.
2006-06-23 05:43:42 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Physics
First, 100 watts converts to 20 dBW (decibel relitive to 1 watt).
The side with 4 speakers will sound louder. Although the increase will not be a great as you may think. Decibel's cannot be simply added. Power can. The side with4 speakers @ 100 watts each (400 watts) is 26 dBw.
2006-06-23 06:03:06 · answer #1 · answered by Doug K 2 · 2⤊ 0⤋
The one with the 4 speakers
2006-06-23 05:46:51 · answer #2 · answered by ag_iitkgp 7 · 0⤊ 0⤋
The four speakers each 70 dB would produce about 76 dB of sound, assuming no interference or other effects. Decibels must be added on a logarithmic scale. The rule of thumb is that each doubling of the loudness of sound adds about 3 dB.
On the other side, 70 dB of sound.
2006-06-23 12:49:41 · answer #3 · answered by volume_watcher 3 · 0⤊ 0⤋
The side with the four speakers will register louder. More air is being displaced than with just one speaker.
2006-06-23 05:58:12 · answer #4 · answered by Anonymous · 0⤊ 0⤋
i would take a guess and say that the room would sound the same on both sides because the desibles are the same on both sides of the room
2006-06-23 05:49:32 · answer #5 · answered by MARIA G 1 · 0⤊ 0⤋
They will sound the same in volume.
Decibels is a measurement that is not dependent on number of sources...
2006-06-23 05:48:04 · answer #6 · answered by _Kraygh_ 5 · 0⤊ 0⤋