A study of the influence of audio signal processing technology on the expression of music aesthetics in piano performance
Mar 21, 2025
About this article
Published Online: Mar 21, 2025
Received: Nov 09, 2024
Accepted: Feb 09, 2025
DOI: https://doi.org/10.2478/amns-2025-0671
Keywords
© 2025 Xiting Yang, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
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Analysis of the test repertoire
| Spectral component (Hz) | 0-40 | 40-100 | 100-200 | 200-500 | 500-1K | 1K-4K | 4K-8K | 8K-16K | 16K-24K |
|---|---|---|---|---|---|---|---|---|---|
| Proportion | 0.002 | 0.003 | 0.005 | 0.009 | 0.013 | 0.035 | 0.296 | 0.331 | 0.306 |
The results of the sound quality evaluation before and after processing
| Indeies | Definition score | Stereoscopic rating | Spatial rating | Snr (db) | Thd (%) |
|---|---|---|---|---|---|
| Pre-processing | 3.26 | 3.51 | 2.84 | 80 | 0.09 |
| Post-processing | 4.39 | 4.77 | 4.42 | 93 | 0.03 |
The frequency and the tune table
| Project | Content | ||||||
|---|---|---|---|---|---|---|---|
| Scale | B | A | G | F | E | D | C |
| Simple spectrum | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
| Frequency | 495 | 441 | 393 | 350 | 331 | 294 | 262 |
| The logarithm of the frequency | 53.9 | 52.9 | 51.9 | 50.9 | 50.4 | 49.4 | 48.4 |