Abstract. The human sense of hearing perceives a combination of sounds `in tune’ if the corresponding harmonic spectra are correlated, meaning that the neuronal excitation pattern in the inner ear exhibits some kind of order. Based on this observation it is suggested that musical instruments such as pianos can be tuned by minimizing the Shannon entropy of suitably preprocessed Fourier spectra. This method reproduces not only the correct stretch curve but also similar pitch fluctuations as in the case of high-quality aural tuning.
1. Piano Technician Guild 技術人員的調音測試要求: On the tuning exam the candidate must match as closely as possible a "master tuning" created by a panel of examiners who have agreed - after painstaking experimentation and analysis - on an optimal tuning for the test piano. Candidates who use electronic tuning devices in…
Your piano is designed to sound its best when tuned to A-440. At this pitch, power and tonal range are optimum and your piano will match the pitch of other instruments. By always maintaining your piano at standard pitch, you create long-term tuning stability because the strings and structure stay…
Tuning is the adjustment of the tension of all of your piano's 220 (or more) strings to the correct pitch or frequency. This ensures that notes played in a musical interval will sound in harmony. Voicing is the adjustment of a piano's tone or quality of sound. Tone can be…
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