The ear ignores sideband phase once components fall outside one critical band

Evidence

As the rate of modulation increases, however, and the sidebands are spread further apart, a point is reached beyond which the just-detectable modulation is the same for both FM and AM. At and beyond this point, the phase of the side bands no longer makes any difference to our hearing capabilities. — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 900

Categorization

• XREF: Ties to the critical-band model of hearing being developed across these chapters.