1. Acoustics. Audiometric test methods. Speech audiometry Part 3, (15th May 1998) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (24 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Ergonomic assessment of speech communication. Speech interference level and communication distances for persons with normal hearing capacity in direct communication (SIL method) Part 1, (15th March 1997) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (18 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
3. Sound system equipment. Objective rating of speech intelligibility by speech transmission index Part 16, (18th November 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (114 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
4. Acoustics. Audiometric test methods. Speech audiometry Part 3, (30th March 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (56 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗