Table 19.
Temporal improvement (ETIR) using the proposed parallel audio watermarking system implemented on our raspberry pi cluster for various audio signals.
| Audio signal with its duration | RPi cluster (4 cores) | RPi cluster (8 cores) | RPi cluster (16 cores) | |||
|---|---|---|---|---|---|---|
| Embedding process | Extraction process | Embedding process | Extraction process | Embedding process | Extraction process | |
| Classical (60 s) | 70.02 | 70.06 | 84.02 | 83.99 | 90.88 | 90.88 |
| Rap (90 s) | 70.04 | 70.07 | 84.02 | 83.96 | 90.90 | 90.90 |
| Jazz (120 s) | 70.13 | 70.21 | 83.96 | 84.01 | 90.89 | 90.88 |
| Pop (150 s) | 70.10 | 70.07 | 83.97 | 83.99 | 90.89 | 90.90 |
| Rock (180 s) | 70.05 | 70.07 | 84.00 | 83.96 | 90.88 | 90.89 |