hh97 wrote:Hi Florin,
Your analyser looks very good! I'm super impressed
My question is will future versions be able to show the bass audio frequencies in audio such as below 100Hz/cycles per second?
If it could show a range more like the ⅓ octave frequency range that would be really great!
I did notice that the low end of the spectrum was 100 Hz, which seems high, but I think with most music, it would be a pretty good representation of what is really happening.
With the exception of some digital music which sometimes use something similar to pure sine waves, most instruments that are capable of producing deep bass in the 30-50 Hz range also produce harmonics that are quite a bit higher. Those harmonics would take care of any supposed lack of "output" in terms of the 100 Hz light column lighting up during those passages.
Also as was previously stated, an equalizer or spectrum analyzer 'band' centered on 100 Hz would still 'represent' frequencies higher and lower than that centered band by a few dozen Hz usually. Think of a standard bell curve, with a peak centered on 100 Hz with decreasing sensitivity as you travel higher and lower from that 100 Hz peak and I think you have a good idea of what is happening.
I don't know how this particular display samples it's frequencies, but every one I've ever encountered worked this way. I wouldn't mind seeing a lower band in the 50's or 60's, that may work better, but I think 100 Hz is okay. In truth, there is really very little output in most music in the 20's and 30's. 20 Hz isn't even 'hearable' and 30 Hz barely so. The 40's and up is usually what we consider 'bass' for most purposes. My home theater uses four 12" high-excursion subwoofers ported, tuned to 18 Hz. I can achieve in room volumes of 118 db at 20 Hz with a sine wave. I can't really start hearing the bass until it hits the mid-thirties. Below that stuff in the room is just shaking. Sine waves are good for demonstrating what a certain frequency actually sounds like, and as far as bass is concerned, they show how low the 'low' bass really is.