SMPTE ST 2110-30 is the audio part of the SMPTE ST 2110 suite, the standard for professional all-IP live production that replaced the single combined SDI cable with separate, synchronized streams for video, audio, and ancillary data over the network. The -30 document specifies how uncompressed PCM audio is carried, and it is built to be compatible with AES67 so the two ecosystems interoperate. Keeping audio in its own essence stream — rather than embedded in video as SDI did — lets engineers route, switch, and process audio independently with full flexibility. Sample-accurate alignment of those separate flows depends on a shared PTP clock. ST 2110 is the backbone of modern broadcast plants and live-production trucks.
The book · Volume 5 of 7
Audio for Video: A Complete Guide to Sound in Video Products: From Jitter Buffers and Lip Sync to Atmos, Quality Metrics, and Neural Codecs
SMPTE ST 2110-30 moves uncompressed audio over IP in sync with separate video flows, and timing is where most installations struggle. This volume covers ST 2110-30 in detail with AES67, PTP, clock domains and synchronization, so you can plan an IP production audio setup that stays aligned. Written by Nikolay Sapunov, CEO at Fora Soft.
Moving to SMPTE ST 2110-30 audio over IP and worried about timing and sync?
Describe your production setup and we will review your ST 2110-30 and PTP design and deliver a sync and interop checklist. 250+ video products shipped since 2005.
