TempPiano is an app that can be confirmedthree temperament(equal temperament, just intonation, Pythagorean)at the same time.You can also change A pitch, base tone, and volume.The free version only work for 30 seconds after starting theapplication,The paid version work unlimitedly.To know how to use, please refer to the youtube video.

TempPiano is an app that can be confirmed three temperament at thesame time.

It is possible to use it without accessory, so you can use iteasily anytime

SimpleSpectrogram is a handy spectrograph.

Intelligent app to record sounds that exceed a loudness level. SASmay be found.

Intelligent program to record sounds that exceed a loudness level.

SimpleFFT is a real-time Fast Fourier Transformanalyzer(audioanalyzer) in the low-frequency region using the voicefrom themicrophone built into your Smartphone. Because it ispossible touse it without accessory, you can use it easily anytimeandanywhere. It operates immediately if it starts. Thetemporalwaveform can be displayed. To the analysis of the failurediagnosisof the equipment, the science education, the voice, andthe musicalinstrument. This application program can be copied ontoSD MemoryCard.(only V2.2 or more) ・Sample rate: 11025・AudioFormat:MONO16bits. ・ FFT number: 2048 ・Windowfunction:Hamming ・Horizontalaxis: only Linear . ・Screenorientation:Landscape(fix) v1.3.0 Thefrequency range was extendedto 5K and was made to change smoothly(stepless) by dragging thescreen. v1.4.0 Fixed a mic issue forsome devices. v1.5.0 Accordingto the size of your device, thedisplay size of the transversedirection was adjustedautomatically. Pro version of this APP is nowavailable on theGoogle Play. (SoundAnalyzer) Please read anexplanatory note onSoundAnalyzer for details.