This is a professional Pipa tuner. It is designed to tune a 4-stringed Chinese lute, i.e. Pipa. The function and usage are the same as the professional digital tuner.
We have been focused on musical instruments turning for more than 10 years. We designed and manufactured a large number of popular professional digital tuners. As the upgrading, we recommend this App.
This App is easy to use, pluck a string of Pipa, as the sound goes into the mobile phone, App will accurately identify the string and the deviation of frequency in cents.
App only responds to musical tones in certain frequency range, while filtering out other interference sounds.