***** "I use this app to detect sound feedback problems on live show and it became helpful and practic." FFT Plot is a powerful real-time audio analysis app. Designed with musicians and recording engineers in mind, it can also be used by anyone interested in the world of sound. Ideal for room tuning or speaker tuning, the app enables portable, precision audio measurement and visualization. Feature Highlights: ● FFT Size (2048 to 16384 points) ● Fast, Slow and Infinite Averaging ● Window function (Hamming, Hann, Rect) ● Peak Frequency detection ● Linear and Logarithmic scale ● Toggle between Flat, A and C weighting ● Pan to adjust visible dB range ● Draggable cursors ● iPhone X ready Audio credits: "Evening Birdsong" and "Cuckoo" by Benboncan
Disappointing
Scale ranges can’t be customized and cannot see low frequencies below 20Hz and DC value. If this were fairly clarified, which it isn’t, I would not have purchased this as it is really useless when those features are what you need.
United StatesGreat job
This app does exactly what it claims to and looks great. I’ll be using it in the classroom soon to demonstrate concepts like “narrow sound frequency band”. Thanks!
United StatesReview From an EE in Signal Processing: Excellent!
I’m a BSEE (University of Washington, 1995) with experience and a bunch of patents in signal processing. This app is an outstanding tool for understanding the spectral content of an audio signal. It was clearly designed by someone with some expertise in the field, and it’s a joy to use.
United StatesAbsolutely fabulous
Works perfectly. My only wish would be to also look at the waveform in the time domain. I use this app for testing new speakers. You will not be disappointed.
United StatesGreat app, needs a way to export data
I greatly enjoy how feature full and yet simple this app is. It runs great and seems quite accurate. One thing I think is dearly missing is a way to export the signals measured to a file (like csv). Taking pictures is great for qualitative comparison but this tool would be way more valuable if it could be quantitative.
United StatesFavorite fee app
As a studio engineer who has to run live sound a few times a year, this app saves me a lot of trouble. I can ring out mics in a heartbeat and solve problems more quickly on the fly. No more sweeping for the exact frequency to notch, or for where to center the de-esser! It’s especially handy on an iPad with its larger display.
United StatesPerformant and accurate.
Fantastic! Apps like this are the reason we don’t need to buy a stupidly overpriced bespoke piece of gear for every little niche... unless we want to! Keep up the great work!
United States
Thank you for helping us improve FFT Plot app! Please rate it on the App Store now, so we can make it even better! ● Toggle between Flat, A and C weighted modes
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