Clock Tuner

Clock Tuner


A Timegrapher

Adjust your mechanical clock by your self.
Just run this app on your phone and put your phone near your cuckoo clock or grandfather clock.

This tuner samples and analyze clock sound to displays the frequency of pendulum in real time.
You can easily measure clock frequency to adjust pendulum.

My Galaxy Nexus detects the pulse of Rolex Datejust in calm environment.

Not for digital clocks.
Not working in noisy environment.
Set microphone direction toward a clock.

** Basic version display wave graph and pulse interval histogram.
** Frequency display requires 'Premium' upgrade.
** Do not upgrade if the 'Basic' version fail to display pulse interval histogram.

- Review from Mr. Kojima
http://www.thewatchsite.com/index.php/topic,42142.0.html

- Preset example
Rolex or mechanical watch: Target frequency: 4 or 5Hz, Sample duration: 2Sec, Sensitivity: manual 50
Most pendulum clock: Target frequency: 1 or 2 Hz, Sample duration: 5 or 10 Sec, Sensitivity: medium

FAQ.
1) in the settings there is a sensitivity option with a high, medium, low and 3 manual settings, can you explain how this changes the results

It determines sound amplitude threshold for detecting clock sound. If your clock sound is loud you may reduce sensitivity. This will allow more environmental noises.
If you increase the sensitive, you may measure hand watches. But small noise may measurement errors.

2) why does the detected frequency change between light grey, black and red
Red means smaller drift during the measurement interval while grey means that measurement may have an error.

3) the average frequency does not always calculate, it stays at NaN
The 'detected frequency' should be red continuously.

4) how do you calculate the pulse drift %
abs(max detected frequency - min detected frequency) / detected frequency during 1 detection cycle.

5) what are the 2 graphs showing and what data are you using for the calculations
The size of bars in the upper graph should be almost the same.
The bottom shows amplitude of sound wave recorded from micro phone.

6) are newer versions of the app being developed

** You may provide sound sample by sending wav or mp3 file to [email protected]

Recent changes:
v 2.05
- Keep ProMode without data connection.
- Improved sound filter.
- Half beat rate problem is fixed.
- Improved accuracy
Add to list
Free
59
3.0
User ratings
94
Installs
5,000+
Concerns
0
File size
2176 kb
Screenshots
Video of Clock Tuner Screenshot of Clock Tuner Screenshot of Clock Tuner Screenshot of Clock Tuner
About Clock Tuner
A Timegrapher

Adjust your mechanical clock by your self.
Just run this app on your phone and put your phone near your cuckoo clock or grandfather clock.

This tuner samples and analyze clock sound to displays the frequency of pendulum in real time.
You can easily measure clock frequency to adjust pendulum.

My Galaxy Nexus detects the pulse of Rolex Datejust in calm environment.

Not for digital clocks.
Not working in noisy environment.
Set microphone direction toward a clock.

** Basic version display wave graph and pulse interval histogram.
** Frequency display requires 'Premium' upgrade.
** Do not upgrade if the 'Basic' version fail to display pulse interval histogram.

- Review from Mr. Kojima
http://www.thewatchsite.com/index.php/topic,42142.0.html

- Preset example
Rolex or mechanical watch: Target frequency: 4 or 5Hz, Sample duration: 2Sec, Sensitivity: manual 50
Most pendulum clock: Target frequency: 1 or 2 Hz, Sample duration: 5 or 10 Sec, Sensitivity: medium

FAQ.
1) in the settings there is a sensitivity option with a high, medium, low and 3 manual settings, can you explain how this changes the results

It determines sound amplitude threshold for detecting clock sound. If your clock sound is loud you may reduce sensitivity. This will allow more environmental noises.
If you increase the sensitive, you may measure hand watches. But small noise may measurement errors.

2) why does the detected frequency change between light grey, black and red
Red means smaller drift during the measurement interval while grey means that measurement may have an error.

3) the average frequency does not always calculate, it stays at NaN
The 'detected frequency' should be red continuously.

4) how do you calculate the pulse drift %
abs(max detected frequency - min detected frequency) / detected frequency during 1 detection cycle.

5) what are the 2 graphs showing and what data are you using for the calculations
The size of bars in the upper graph should be almost the same.
The bottom shows amplitude of sound wave recorded from micro phone.

6) are newer versions of the app being developed

** You may provide sound sample by sending wav or mp3 file to [email protected]

Recent changes:
v 2.05
- Keep ProMode without data connection.
- Improved sound filter.
- Half beat rate problem is fixed.
- Improved accuracy

User reviews of Clock Tuner
Write the first review for this app!
Android Market Comments
A Google User
Nov 24, 2014
Best mechanical watch tuning utility No one can get better tuning utility then this helped a lot to fix speed of my automatic mechanical watch.
A Google User
Nov 16, 2014
Nice but.... ...I have a Hermle grandfather movement before me that runs @ 66 bpm (3960 bph). The app does not seem to recognize that rate to sync and calculate against
A Google User
Nov 11, 2014
Meh... Work in progress but still has bugs. Works great when it works.
A Google User
Nov 6, 2014
Clock tuner that saves my life Actually it works after rebooting the phone ! It was showing smth like 300bph when it has to be 28800, but after rebooting, it started to show around 28790 ! (Also I found the right angle for recording...) Amazing how did you managed to build such a brilliant app ! I am sorry I have sent you email for refund. Such app has to cost 3 times more !  Can you add some features like saving the tests and exporting in csv format ? I would love to run stats analysis on excel...My congrats for such good job
A Google User
Oct 23, 2014
Meh... So for five bucks, you get an app that KINDA works, sometimes... And even if you've paid for the app the dev doesn't respond to emails or complaints. As long as you remember the beat is DOUBLE what the counter indicates, and you can get it to works.... It's OK. If athumbcut would get off his lazy duff and fix the minor issues this could easily be the best horological android tool PERIOD. Fix this, Mr developer... And you might earn an article of praise in the NAWCC newsletter!!