AUDIBILITY SCALE.
A 1: Barely audible on ’phones. Speech indistinct. A2: Audible on ’phones. Speech clear and distinct. A 3: Loud on ’phones. Weak on loud-speaker. Speech indistinct. A 4: Too loud on ’phones. Good on loud-speaker. Speech clear and distinct. A 5: Loud on loud-speaker. Speech clearly heard all over a large room. A 6: Very loud on loud-speaker. Speech heard clearly all over the house. A 7: Loud enough on loud-speaker for speech to be heard clearly a hundred yards away.
Permanent link to this item
https://paperspast.natlib.govt.nz/newspapers/TS19281206.2.153
Bibliographic details
Star (Christchurch), Issue 18630, 6 December 1928, Page 16
Word Count
83AUDIBILITY SCALE. Star (Christchurch), Issue 18630, 6 December 1928, Page 16
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