real-time analyser (part 1) - a high quality measuring instrument for analysing the audio frequency spectrum

real-time analyser part 1 elektor march 1984 A real-time analyser is an audio measuring instrument that defines which frequencies are present in an audio signal and in what strenghts. To do this the audio spectrum is broken up into so-called harmonic bands. It is in fact an ideal measuring instrument for audio enthusiasts. The term "real-time" indicates that the whole frequency range is analysed simultaneously, and this method ensures extremely accurate and quick measurements. real-time analyser part 1 A real-time analyser is not something most people are likely to use every day. In tave. The centre frequency of the lowest band is 25 Hz and the centre frequency of the highest band is 20 kHz. The signal strength of each of these thirty bands is shown on a display. A real-time analyser can be compared to a spectrum analyser, even though they operate quite differently. The real-time analyser gives just as accurate a fre- quency analysis as a spectrum analyser but it has the advantage...