I am requesting recommendations for a program source (a downloadable .mp4 or .wav or a Spotify album) that plays random noise that I can play thru my system, and then use a phone app spectrum analyzer to walk around and see where room resonant standing wave peaks or nulls may exist.
Yes, this is a very crude, non-calibrated method, but I am not ready to invest a lot of $$ now.
The random noise apps that I find on AppleMusic or the Android PlayStore are intended for background noise to aid mental concentration or sleep relaxation. The envelope of the spectral content varies over time to simulate ocean waves or wind or a waterfall, so that is not good for my purpose. I want noise that has a steady spectral density.
And while I am asking, what can you recommend for spectral analyzer apps? Ideally, 1/3 octave resolution or tighter, with an averaging function to smooth out those random peaks/dips in the source content.
Thanks in advance!
Yes, this is a very crude, non-calibrated method, but I am not ready to invest a lot of $$ now.
The random noise apps that I find on AppleMusic or the Android PlayStore are intended for background noise to aid mental concentration or sleep relaxation. The envelope of the spectral content varies over time to simulate ocean waves or wind or a waterfall, so that is not good for my purpose. I want noise that has a steady spectral density.
And while I am asking, what can you recommend for spectral analyzer apps? Ideally, 1/3 octave resolution or tighter, with an averaging function to smooth out those random peaks/dips in the source content.
Thanks in advance!
Check out REW. It is free, runs on Windoze, Mac and Linux. Includes various white, pink and sweep generators plus a spectrum analyser.
REW - Room EQ Wizard Room Acoustics Software
Cheers
Ian
REW - Room EQ Wizard Room Acoustics Software
Cheers
Ian
Brown Noise == "Brownian Noise", names for the same guy who brought us "Brownian Motion"
Brownian noise - Wikipedia.
Basically noise where the amplitude decreases as 1/f^2
I will admit that I had to google that.
Brownian noise - Wikipedia.
Basically noise where the amplitude decreases as 1/f^2
I will admit that I had to google that.
"Brown" noise is often used for background noise generators to help mask other sounds and relax for sleeping.
Thanks! The software looks extremely capable! I might try using a cheap (calibrated) microphone before investing in one of the UMIK or DaytonAudio mic's.