“ZERO SPEECH
LONG-DISTANCE TELEPHONE. REMOV ING D I.BTORTION. LONDON, Afay 28. The Post Office has devised an undistorted telephone, making long distance speech as audible as local calls. The device, which is known as “zero speech,” completely removes distortion from the voice. It will be applied to all trunk lines. Two factors have led to its success, the amplifying of the current every 40 or 50 miles by a repeater, and a new device attached to every repeater The system will also improve relayed wireless broadcasts.
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https://paperspast.natlib.govt.nz/newspapers/WC19320530.2.45
Bibliographic details
Wanganui Chronicle, Volume 75, Issue 125, 30 May 1932, Page 7
Word Count
86“ZERO SPEECH Wanganui Chronicle, Volume 75, Issue 125, 30 May 1932, Page 7
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