Picture of a piano technician working on the hammers or dampers of a piano

Professional Piano Voicing & Tone Adjustment

Piano voicing is the specialist process of adjusting the density, shape and condition of the piano hammers to refine and control the overall tone and tonal balance of your piano. Proper piano voicing ensures that your instrument produces a sound that is even, expressive and pleasing to the ear, allowing you to project both musical detail and emotion with clarity and control.

If your piano sounds too bright or tinny, too dull or muted, or if certain notes are noticeably louder or softer than others, it is often a sign that the piano hammers require professional attention. Through expert hammer voicing, the tone of the piano can be carefully tailored to suit the player, the instrument and the environment in which it is used. When carried out correctly, piano voicing creates a consistent sound across the keyboard and significantly improves musical responsiveness.

The voicing process begins with a detailed assessment of the touch and action response, followed by the precise alignment of the hammers to the strings. Each hammer is then carefully reshaped, refaced and voiced, removing the deep grooves that develop in the hammer felt through years of contact with the strings. Restoring the hammer to its correct profile is essential, as a clean, smooth hammer surface is critical for accurate piano voicing and tonal control.

The piano hammer plays a crucial role in sound production and is responsible for up to 60% of a piano’s tonal character. For this reason, professional piano voicing and hammer regulation are among the most effective ways to improve tone quality, balance and playability, whether as part of routine piano maintenance or a full piano restoration.

Looking for piano restoration? We also provide full and partial piano restoration services. See our piano restoration page here.