Antiphasic speech improves word identification by 20 percentage points at low SNRs.

Evidence

In particular, Licklider found that word identification was 20 percentage points better in the antiphasic condition compared with the homophasic condition. The difference in scores was most pronounced at low SNRs and essentially vanished at SNRs greater than 4 dB. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1552

Categorization

• XREF: Relates to earlier chapters on how masking and signal-to-noise ratio shape auditory perception; also to the reader’s broader goal of understanding hearing-impaired vs. normal speech perception failure.