TunerTime
A tool for visualizing sound that can be used to tune pianos.
galexand · org.galexander.tunertime
UpdatedNov 25, 2025
PublishedMar 23, 2023
Packageorg.galexander.tunertime
MD54b46b3d3511e0b9aa173dcee0b4df4bb
SHA1 (signer)9A:3D:C4:68:D4:C2:31:45:AB:BF:F2:06:14:81:CD:C5:71:69:6F:84
Signed byCN=Greg Alexander, OU=Unknown, O=Unknown, L=Unknown, ST=Unknown, C=us
Architecturesx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Contact[email protected]
Privacy policyView
What's new
2020/12/27 Version 17: Fix microphone permission on new installs.
Description
Two tools for visualizing sound.
A stroboscopic tuner. You tell it which note you are aiming for, and then it will show you a red/green bar indicating how close you are coming to hitting it. Perfectly horizontal means you are in tune, sloping down is flat, and sloping up is sharp.
An FFT spectrum analyzer. You can see how the complete spectrum evolves over time.
TunerTime is not the simplest tuner to use, but it is probably the most precise, and it has features particularly useful for piano tuners.
Have questions? The manual is at http://www.galexander.org/software/tunertime/
A stroboscopic tuner. You tell it which note you are aiming for, and then it will show you a red/green bar indicating how close you are coming to hitting it. Perfectly horizontal means you are in tune, sloping down is flat, and sloping up is sharp.
An FFT spectrum analyzer. You can see how the complete spectrum evolves over time.
TunerTime is not the simplest tuner to use, but it is probably the most precise, and it has features particularly useful for piano tuners.
Have questions? The manual is at http://www.galexander.org/software/tunertime/
Required features
- Faketouch android.hardware.faketouch
- Microphone android.hardware.microphone
Permissions (2)
TunerTime requests the following Android permissions:
- Record Audio android.permission.RECORD_AUDIO
- Wake Lock android.permission.WAKE_LOCK
