page_title: Surround channels
hierarchical_section_title: Surround channels
context_page_description: Surround channels are audio channels in surround sound multichannel audio. They primarily serve to deliver ambience and diffuse sounds in a film or music soundtrack.
context_section_description: Surround channels are audio channels in surround sound multichannel audio. They primarily serve to deliver ambience and diffuse sounds in a film or music soundtrack.
caption: Surround channels in a Dolby Pro Logic 4.0 system using two speakers in antiphase or a dipole speaker