soundhound
Well-Known Member
On a lark, I downloaded the RTA Pro audio analyzer program for my Droid X. Surprise, the Droid makes a pretty good RTA! I guess I shouldn't be too surprised with the microphone quality in the Droid since condenser mike capsules are getting very good for very cheap: after all, the capsule in my calibration microphone project is about $2, and is very flat.
Below is a plot of my left main speaker with 12 band/octave resolution. The curve isn't as flat as it could be since I had to lay the Droid on a chair in order to take the picture, but when held next to my Bruel & Kjaer instrumentation microphone using TrueRTA, the curves match pretty closely. Note that the extreme bass region is accurately captured. Not bad for less than $6.
Below is a plot of my left main speaker with 12 band/octave resolution. The curve isn't as flat as it could be since I had to lay the Droid on a chair in order to take the picture, but when held next to my Bruel & Kjaer instrumentation microphone using TrueRTA, the curves match pretty closely. Note that the extreme bass region is accurately captured. Not bad for less than $6.