FFT Plot

기본적으로 아이패드 마이크 외에 4극-헤드폰젠더를 사용하면 인풋 단자 인식률이 너무 떨어집니다. 젠더 케이블 모두 10개씩은 교체해가면서 테스트했네요. 기기 내장 마이크 또는 헤드폰단자가 아닌 adc등으로 입력을 받아야 한다는점이 포터블용으로 아쉬움이 남네요. 그리고 반응이 fast와 midium사이 반응값이 더 있으면 라이브 현장에서 체크하기가 좋을듯 한데 그부분도 좀 아쉽습니다. 다른 무료 프로그램보다 조금 더 시인성이나 반응이 낫다 이정도이네요.

I need zoooomm

good app~.

핸드폰으로 어느정도 음향을 조절할수가 잇다는게 정말 좋은 프로그램인것 같습니다....

Great I like this

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.

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!

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.

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.

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.