v7.0.0-rc2

Notes

(Hopefully) improved frequency detection.

While the tuner was reliable for many instruments before, sometimes it detected higher harmonics as base frequency. While it is not always obvious what base frequency to choose, there clearly seemed to be room for improvement. This release extends the previous detection algorithm with additional scans to see if other base frequencies might be a better match.

The algorithm is currently tested against a local database of some instruments. I am always thankful to have more samples for further tests. Ideally the samples are directly recorded through the tuner. A description can be found at the end of this release note. In case of interest I can also collect the samples in a public git repository.

Description of how to record wave files via the tuner

The tuner app has the option to record samples and store it to a wave file (please read especially point 4 carefully to understand that the sound BEFORE pressing is stored, not AFTER):

• Go to preferences and scroll down. You will find the option of recording duration in scientific mode. Turn this up to desired recording time).
• Switch on scientific mode.
• Go back to the tuner, you will now see a record button at the bottom.
• Pluck you string and wait for the phenomena to happen. After it happened, let it sound for e.g. 1 more second, then press the record button. It will save the 5 seconds BEFORE pressing the button.
• Give a filename and store it somewhere.
• Better listen to the stored file before sharing to make sure, it is really something you want to share.
• Provide the file here (maybe you have to zip it before ...)