What the study found
A five-minute vocoder performance by Alice Thornburgh produced a sustained vocal meditation with choral harmonic multiplication across a C/G tonal axis. The abstract describes the result as a voice converted into a multiplied witness-texture.
Why the authors say this matters
The authors suggest the vocoder turns one voice into a multiplied witness-texture, and they present the performance together with computational audial criticism and spectral visualization as a documented analysis of the work.
What the researchers tested
The article presents a five-minute vocoder performance and includes a companion Computational Audial Criticism analysis, based on the methodology used in a prior study. It also includes a four-panel spectrogram visualization with waveform, Mel spectrogram, chromagram, and energy contour with spectral brightness overlay.
What worked and what didn't
The performance is described as having breath-structured phrase architecture and a ritual decrescendo. Reported measures include spectral flatness of 0.0010, pitch range A2–B5 with median G4, dominant pitch classes G and C, harmonic ratio 77.62%, and 293 detected onsets across 300.7 seconds. Energy is said to remain sustained throughout, with a ritual withdrawal in the final segment as silence ratio rises from 13% to 27%; the abstract also notes that the spectral centroid brightens as energy withdraws.
What to keep in mind
The abstract provides descriptive and quantitative analysis, but it does not state broader conclusions beyond the performance description. The limitations are not described in the available summary.
Key points
- The performance is described as a five-minute vocoder vocal meditation.
- The abstract says the vocoder created choral harmonic multiplication across a C/G tonal axis.
- Reported measures include spectral flatness of 0.0010 and harmonic ratio of 77.62%.
- The pitch range is given as A2–B5, with median G4 and dominant pitch classes G and C.
- Energy stays sustained overall, while silence ratio rises from 13% to 27% in the final segment.
Disclosure
- Research title:
- Vocoder performance shows sustained tonal vocal texture
- Authors:
- Alice Thornburgh
- Institutions:
- Hexagon (United Kingdom)
- Publication date:
- 2026-04-27
- OpenAlex record:
- View
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