| A | B |
|---|
| ST | spondee threshold |
| PB | phonetically balanced |
| SRT | speech recognition thresold |
| PI | performance intensity |
| SAT | speech awareness threshold |
| SDT | speech detection threshold |
| MCL | most comfortable level |
| LDL | loudness discomfort level |
| UCL | uncomfortable level |
| SL | sensation level |
| HL | hearing level |
| PTA | pure tone average |
| AI | audibility index |
| PBK | phonetically balance kindergarten list |
| CNC | consonant nucleus consonant |
| NU-6 | Northwestern University list six |
| CID | Central Institute for the Deaf |
| SPL | sound pressure level |
