Cythara

A musical instrument tuner for Android.

Functionality

• Provides tunings for various instruments and supports chromatic tuning.
• Changes background color from red to green to indicate that the pitch is in tune (with a tolerance of 10 cents).
• Displays deviations between -60 and 60 cents.
• Supports scientific pitch notation and Solfège.

Tests

Run ./gradlew test to run all unit tests. In addition, there are UI tests based on image comparisons which can be run using ./gradlew connectedCheck. The reference images are generated using a Nexus 5X emulator (resolution: 1080 x 1920, 420 dpi) with API level 26.

Libraries

The Tarsos DSP library (https://github.com/JorenSix/TarsosDSP) is used for pitch detection.

Current library version: commit d958352

License

Cythara is licensed under GPLv3. A copy of the license is included in the LICENSE.

Contributors

In chronological order:

• mtbu added the violin tuning
• afmachado provided the translation to Brazilian Portuguese
• tebriz159 created the logo
• toXel provided the translation to German
• TacoTheDank enabled the installation on external storage, upgraded the language level, and updated dependencies
• thim added the cello tuning, fixed issues, and updated library versions
• obibon provided the translation to Basque
• Daveed9 added the viola tuning
• SiIky added the Drop C bass tuning and suggested a more reliable way of handling note frequencies
• romgarb added the Turkish Oud standard tuning
• klausweiss added the Banjo tuning and missing translations
• berkaygunduzz provided the translation to Turkish
• gtataranni added the guitalele tuning

Thank you all!

Screenshots