C3v81 MW mic 8

The Stuart sound of C3v81 was 10 dB louder than Steinway at mic 8. The Steinway bass frequencies ‘swell’ at 1s, illustrated in the spectrogram below, Fnd. at 1s.The Stuart spectrum is more stable, with less change. Inner harmonic balance of the two sounds is a distinguishing factor in describing the sounds.

The Stuart sound of C3v81, was 10dB louder than Steinway at mic 8. The Steinway bass frequencies ‘swell’ at 1s, illustrated in the spectrogram below, Fnd. at 1s.The Stuart spectrum is more stable, with less change. balance of the two sounds is a distinguishing factor in describing the sounds

The Stuart piano sound produced a significantly wider and louder harmonic spectrum. The 2nd & 3rd partial frequencies of the Stuart sound, are larger in amplitude and have slower rates of decay , than in the Steinway sound. The Stuart tone is brighter, and has a significantly more stable harmonic balance than the Steinway tone The Steinway sound is in a constant state of change, with a dramatic swelling of the bass frequency at 1s, another swell at 4s, and a rapid decay at 6s. The longer duration of the 2nd partial frequency of the Stuart, has produced a note with more sustain

The energy decay curve shows later transition to the slower oscillation of the Stuart sound (ii) , to be significantly slower than Steinway (ii) at 3.2s.