What is the measurement of sound noise?

Sound noise measurement tries the quality of sound equipment. It does this by measuring the amount of noise present in any sound record. Any distortion and noise are then removed by the sound weighing system. Such measurements are performed in radio and television broadcasting studios, recording studios, home recording and sound equipment.

Noise in the record is the presence of any undesirable sounds. Microphones, amplifiers, speakers and other recording equipment can cause noise in the foreground. Background noise can also be created by sounds as remote as traffic or studio sounds such as mixing papers and general sounds associated with the audience. Not all sounds can be caught before or during recording. Measurement of sound noise detects these sounds when the recording is played back through the correct equipment. As a result, the Tlidian ear is not good when inserting very low and very high frequencies. This means that sound noise measurement is compared with the standard level of sound pressure or SPL. SPL 0It is perceived as a threshold for a sound reaching human ear. SPL 10 to 20 is the sound of rustling leaves and whispers, while the level 220 resembles a person's head in front of the canon when they fire.

The capacitor microphones tend to be used during measuring sound noise. The capacitor microphone has a wide range of frequency reactions. It also has a polarized membrane. Three basic types of capacitor microphones are used to capture noise: a free field microphone, a pressure microphone and a random microphone.

There are a number of ways to measure the presence of noise in records. One basic method is to take a recording with a sound source and tslepice recording only background noise. Signal-Šum ratio is a sound noise measurement technique that uses decibels to measure the root average square (RM) energy of all sounds without harmonious. Signal-Šum Plus distortion ratio includes harmonious while measurementThe dynamic range compares the ratio of the largest size against the quietest signal.

Sound weight requires sound measurement and tries to remove sounds that are audible to the human ear. There are two main methods of weighing: weighing a-raising and ITU-R 468. The A-Curve Curve is formed from the contour of the same smoothness designed to show which it sounded to which the human ear is sensitive. After Criticism of the A-Weighting Curve’s Accuracy, The British Broadcasting Corporation (BBC) Created the ITU-R 468 Curve, WHICH INCLUDES 11 DECIBELS OF NOISE REDUCTION.