A Simple Guide For Finding a Cheap Sound Meter
If you have a 9215 with a CDAQ chassis, a cheap sound meter seems like an excellent instrument for you to have the accuracy of a much more expensive device. However, take a minute to consider the specs for all the available sound meters in your range for sound quality and adjust accordingly for the ideal voltage range that you expect from your meter. The digital output from the meter is converted into analog using a FET switching. A pulse width modulation of the analog signal passes through a preamp that controls the amplitude. The pulse width modulation then changes the voltage level into a variable signal that you can use to compare with the actual incoming call that is measured. If your conversion is accurate, then you will hear the smallest ripple in the meter.
Suppose you are not comfortable using your cheap sound meter for this sensitive work because you are not sure of your measurement accuracy. In that case, a senior member may assist you in using the meter more effectively. A senior member has more experience in sound meters than you and has been a sound meter user for many years. Since your senior member will know the ins and outs of your particular model, he or she will be able to give you accurate and helpful advice on how to use your sound meter to its fullest effect. These experts are not usually inexpensive, but they are definitely worth the price if you can count on their help in making your sound meter work the best it can for you.
Most sound meters produce different models based on acoustics’ standard measurements, measured in decibels (DB). There are three standard sizes of heights: The most common one is called the THD (the) which stands for total harmonic distortion. THD measures the excess of a harmonic distortion curve from the speaker system’s output to the listener. This measure is essential because it gives a reasonably good idea about the speaker systems’ efficiency in question.
The next thing you should look for when shopping for a cheap sound meter is a gauge that is easy to read and easy to maintain. The most popular gauges are:
The RMS (root mean square) type.
- The ABRS (American Ballistic Reflection Sound meter) type.
- The DIN (digital in-line measurement) type.
The DIN type is entirely accurate and is a good indicator of what microphone was used in the measurement. It also has the advantage that it displays the values in a fraction of a second so that you do not have to wait for the reading to appear on your computer screen to see whether the levels are within acceptable limits.