Wow! This is the best! Simply Awesome! Quickly and dirty tested it with True RTA wave generator and it is accurate on my Samsung GSII (T-mob) all the way from about 100 Hz to 22 KHz! Are you kidding me? This is for mere 5 bucks? I didn't even know cell phone internal microphones can be made to sense a range like this! I didn't test sound levels accuracy, because I don't have a reference equipment. But, I am using this app to determine the probable source of sound and then to find the source, not to measure levels accurately anyway. I tried a few other apps before this one and they don't even hit the ballpark on frequency measuring. Awesome, awesome, awesome!
This really is a 5 star app. I (naively) use this app to tune my home stereo & sub. The hope is to set the sub's volume to match that of the speakers, and set the sub's crossover such that the sub is just creating the frequencies the speakers can't. I turn off the sub, then using the peak hold feature and a tone that escalates from 20Hz to 500Hz I create a frequency response curve. This curve shows the lower limit of my speaker's ability. Then I turn off the speakers and repeat the creation of a frequency response curve with just the sub on. I adjust the sub's crossover until the sub cuts off at the frequency where the speakers kick in. Finally, I turn on the sub and the speakers together and, while running the same 20-500Hz tone, I adjust the sub's gain until the sub's frequencies are level with the speaker's.
Great for realtime I love the app & frequently use it to pinpoint specific erroneous frequencies in machinery and servos. I'm not really sure if it has any ability to record/analyze samples, but if it does, I would like to learn more about how. If it doesn't, it would be a nice feature.
Very Good. 5 Stars A dam good accurate app. You can freeze the image and send to your pc for larger aalysis. Originally gave it 4 stars, ive now changed to opinion to 5 after taking time to fully understand its functionality.
Marshmallow broke it It was the best FFT analyzer by a wide margin, but after upgrading to Android 6.0 it has been choppy (ca 1-2Hz refresh rate). Gone from brilliant to almost unusable. Sony Xperia Z5 and Nexus 7
Will this record #VancouverPD's illegal use of the crowd control device I was tortured with? 200 mhz-10,000 mhz are the specs for LRad500x. I wonder if it'll record that...?
* Peak Hold Overlay option
* Peak Hold long-press enable
* 48 kHz audio sample rate option (device dependent; will fall back to 44.1kHz if your device does not support 48kHz)
* Select between 'Default' and 'Front' mic (device dependent)
* Fix for Toshiba Thrive & Dell Streak mic issue