Manipulating the masker’s spectrum affects speech intelligibility more than manipulating the target’s spectrum.

Evidence

Changing the filter type (HP or LP) had a small influence on the slope of the linear increase (or decrease) of SRTs before reaching the asymptote, confirming that the chosen low and high frequency regions contributed equally to speech intelligibility. But, the results showed that filtering the masker seemed to have a larger impact on speech intelligibility than filtering the target. — Dijk, Pim van, Physiology, Psychoacoustics and…, 3581

Categorization

• XREF: Connects to masking release / informational versus energetic masking literature, and to how hearing-impaired listeners’ SRTs behave under fluctuating noise.