A spectrum analyzer can be a powerful tool that can be used to well-tune several audio signals. There are a number of uses for a spectrum equalizer. One important function of the spectrum equalizer can be used to try and check the response of a tape recorder. This equipment can even help identify the minute rumble frequencies in an air conditioner. This data can be used to filter out noise in recording studios or improve sound quality while recording. The market for such gadgets is becoming popular as ever.
There is a high price to pay for owning a commercial spectrum analyzer. Such an ownership presents a major problem and its high price may not be that affordable for some people. LED or (Light Emitting Diode) versions of spectrum equalizers may have cost many hundreds of dollars today, but it seems to be the most widely used unit.
A high quality spectrum equalizer model can also run into thousands. Such spectrum equalizers paved the way for producing high quality audio. And the valuable component is here to stay to provide consumers with great quality sound as well as more accurate signal calibration.
Although a real-time spectrum analyzer is more convenient and easy to use because of its simultaneous display of all frequency bands, an older manually swept model is no less professional and effective and its use follows well-established practice. In fact, a continuous sweep can detect narrow peaks and dips, which would be ignored by a real-time unit.
For all of the filter components on a spectrum equalizer, it is important to use the one with the closest tolerance available. Choosing One-percent metal film resistors, which are not only the best in the market, but also because of their accuracy and for their reduced sensitivity to temperature. In the absence of the metal film, polycarbonate or Mylar capacitors and other components are the best choice for the actual filter stages. Supplied bypass disk capacitors are not only sufficient for use but are also preferred, since they possess the least series inductance.
There are also several Tubular Types, though generally considered the more temperature stable component. They are constructed of long strips of foil which when rolled up for compactness become inductive thus reducing their effectiveness at high frequencies. Besides being able to easily vary and change the audio quality and tune to its regarded frequency, a state-variable filter can also provide.
Source by Low Jeremy