7. C3v20 MW mic1

Stuart
C3v20 STU MW mic1.wav
Steinway
C3v20 STE MW mic1. wav
Soundtable 4.15 C3v20 MW mic1

The bass ‘swell’ is enhanced through the added microphones. The attack tone of the Stuart is more immediate, with the higher amplitudes of Fnd. 2nd& 3rd partials.

Array sound:

Stuart
C3v20 STU MW mxd array .wav
Steinway
C3v20 STE MW mxd array .wav
Soundtable 4.16 C3v20 MW mxd arry

Decay:

The Stuart sound decayed .5 dB/s slower than Steinway in the onset oscillation (i). The Steinway’s transition to its 3rdphase settled oscillation (iii) is approximately 1.5s earlier than Stuart.

For C3v20, the Stuart was louder than Steinway at mics 1,2,5,6,7,& 8

Soundboard: At the 4 probe positions, the Stuart soundboard vibrated at 31% greater magnitude than the Steinway soundboard for C3v20.
For the note C3, the diameter of the Paulello/Stuart wire is 25mm thicker, the tensile strength of the Paulello/Stuart wire is 177 N/mm² higher , the Paulello/Stuart is 1.5mm longer, and is set at 3.5kg higher tension. The yield or capacity of the Roslau/Steinway wire is 3.6% higher than Paulello/Stuart.

C3v20 130.80 Hz Scaling, Soundboard table 4.7

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