Test 2 – Duration and nature of vertical vibration at various MIDI velocities and various V sensor positions.

Analysis

• In general, the Stuart string maintains a vibration excursion of at least 1mm over a longer period than the Steinway string.
• Test results vary, but in all cases show that the above is true.
• Both strings start showing a strike rate of 65.406Hz (fundamental frequency f), which resolves into a strike rate half the fundamental (f/2).

Conclusion
• Compared to the Steinway string, the Stuart string maintains a vertical deflection of 1mm for longer period.
• Both strings exhibit a sub-harmonic