Halloween 4K
English: DTS:X
English: DTS-HD Master Audio 7.1 (48kHz, 24-bit)
Spanish: DTS 5.1
French (Canada): DTS 5.1
Halloween Kills 4K
English: Dolby Atmos
English: Dolby TrueHD 7.1 (48kHz, 24-bit)
French (Canada): Dolby Digital 5.1
Spanish: Dolby Digital Plus 7.1
Halloween Ends 4K
English: Dolby Atmos
English: Dolby TrueHD 7.1 (48kHz, 24-bit)
Spanish: Dolby Digital Plus 7.1
French: Dolby Digital 5.1 (448 kbps)
English: Dolby Digital 2.0 (192kbps)