((link)) - Perfect Blue Japanese Audio

Tsuji uses a formal, corporate Tokyo dialect that slowly crumbles into Kansai-ben (Osaka dialect) under stress. This regional linguistic slide is invisible to non-speakers, but it signals his loss of professional control. No English dub has ever attempted to replicate this class- and region-based vocal degradation.

If you are searching for the definitive experience, not all releases are equal. Here is a breakdown of where to find it: Perfect Blue Japanese Audio