|
Loudness (894 words) |
 | A general "rule of thumb" for loudness is that the power must be increased by about a factor of ten to sound twice as loud. |
| A widely used "rule of thumb" for the loudness of a particular sound is that the sound must be increased in intensity by a factor of ten for the sound to be perceived as twice as loud. |
| When two sounds of equal loudness when sounded separately are close together in pitch, their combined loudness when sounded together will be only slightly louder than one of them alone. |
| Loudness control circuit - Patent 4320534 (1492 words) |
| Furthermore, the loudness control circuit is disadvantageous in that, when the sliding contact of the variable resistor is set higher than the intermediate tap to increase the volume, the compensation effect of the loudness control circuit is inadequate. |
| Another object of the invention is to provide a loudness control circuit which can be provided in the form of an integrated circuit, and in which as the volume is decreased, the sound in the high and low frequency ranges is automatically boosted with the aid of DC voltages outputted by variable DC voltage sources. |
| A further object of the invention is to provide a loudness control circuit in which the sound in the low and high frequency ranges are automatically boosted with the electric field strength of a received broadcast wave such as an FM broadcast wave. |
Feeds |
Contact