Improved volume response:

[Theremingenieur]

• Smoother response and finer resolution, especially at low volumes
• Reduced distortion at low volumes with rounding before truncating
• Optimized code for scaling the samples before sending them to the DAC

[Theremingenieur]

One user from Costa Rica reported crackling noise. Might be a timing issue. Although the "new" code uses less overall CPU cycles and runs quicker, it uses much more CPU registers at a time which might be problematic when an interrupt occurs while volexp() is running. Closing this for the moment until further investigation has been made.