Table 1.
Self-Reported Preferences for Sound Quality as the Percentage of Participants in the Six Paired Comparison Conditions.
| Sound quality conditions | Preferred less aggressive NR | No preference | Preferred more aggressive NR |
|---|---|---|---|
| Listening effort | |||
| NRoff/NR8 | 25% | 3% | 72%** |
| NRoff/NR14 | 41% | 0% | 59% * |
| NRoff/NR20 | 41% | 0% | 59% * |
| NR8/NR14 | 38% | 16% | 47% |
| NR8/NR20 | 47% | 0% | 53% |
| NR14/NR20 | 63%** | 3% | 34% |
| Listening comfort | |||
| NRoff/NR8 | 22% | 9% | 69%** |
| NRoff/NR14 | 41% | 3% | 56% |
| NRoff/NR20 | 31% | 0% | 69%** |
| NR8/NR14 | 31% | 16% | 53%** |
| NR8/NR20 | 31% | 0% | 69%** |
| NR14/NR20 | 56% | 3% | 41% |
| Speech clarity | |||
| NRoff/NR8 | 25% | 9% | 66%** |
| NRoff/NR14 | 38% | 5% | 63%** |
| NRoff/NR20 | 38% | 0% | 63%** |
| NR8/NR14 | 34% | 13% | 53% * |
| NR8/NR20 | 41% | 0% | 59% * |
| NR14/NR20 | 69%** | 3% | 28% |
| Overall quality | |||
| NRoff/NR8 | 22% | 13% | 65%** |
| NRoff/NR14 | 44% | 0% | 56% |
| NRoff/NR20 | 38% | 0% | 63%** |
| NR8/NR14 | 34% | 16% | 50% |
| NR8/NR20 | 44% | 0% | 56% |
| NR14/NR20 | 69% * | 3% | 28% |
Note. The contrastive condition that resulted in significantly more participants preferred over the other are bolded. NR = noise reduction.
*
p < .05. **p < .01.