# AES67 audio-over-IP on the ESP32-P4

DevFeed: [AES67 audio-over-IP on the ESP32-P4](<https://devfeed.tech/articles/aes67-audio-over-ip-on-the-esp32-p4-13774.md>)

Original publisher: [Read original article](<https://developer.espressif.com/blog/2026/06/aes67-audio-over-ip-on-the-esp32-p4/>)

Author: John Lee

Published: 2026-06-24T00:00:00Z

Content type: tutorial

Language: en

Sources: [Blog on Developer Portal](<https://devfeed.tech/sources/blog-on-developer-portal.md>)

Topics: [ESP32-P4](<https://devfeed.tech/topics/esp32-p4.md>), [ESP-IDF](<https://devfeed.tech/topics/esp-idf.md>), [Ethernet](<https://devfeed.tech/topics/ethernet.md>), [Latency](<https://devfeed.tech/topics/latency.md>), [RISC-V](<https://devfeed.tech/topics/riscv.md>), [Protocol (disambiguation)](<https://devfeed.tech/topics/protocol.md>), [Toit](<https://devfeed.tech/topics/toit.md>), [Raspberry Pi](<https://devfeed.tech/topics/raspberry-pi.md>)

Tags: [aes67](<https://devfeed.tech/tags/aes67.md>), [audio](<https://devfeed.tech/tags/audio.md>), [blog](<https://devfeed.tech/tags/blog.md>), [esp-idf](<https://devfeed.tech/tags/esp-idf.md>), [esp32](<https://devfeed.tech/tags/esp32.md>), [esp32-p4](<https://devfeed.tech/tags/esp32-p4.md>), [ethernet](<https://devfeed.tech/tags/ethernet.md>), [hardware](<https://devfeed.tech/tags/hardware.md>), [ip](<https://devfeed.tech/tags/ip.md>), [latency](<https://devfeed.tech/tags/latency.md>), [low-latency](<https://devfeed.tech/tags/low-latency.md>), [network](<https://devfeed.tech/tags/network.md>), [networking](<https://devfeed.tech/tags/networking.md>), [protocol](<https://devfeed.tech/tags/protocol.md>), [ptp](<https://devfeed.tech/tags/ptp.md>), [ravenna](<https://devfeed.tech/tags/ravenna.md>), [risc-v](<https://devfeed.tech/tags/risc-v.md>), [rtp](<https://devfeed.tech/tags/rtp.md>), [sync](<https://devfeed.tech/tags/sync.md>)

## AI overview

This article describes implementing a working, PTP-synchronized AES67/RAVENNA audio endpoint on the ESP32-P4 as an ESP-IDF component. It covers clock synchronization, low-latency packet reception, and I2S playout, reporting best-case end-to-end latency of about 0.7 ms and noting which parts are solid or still limited.

## Source excerpt

AES67/RAVENNA is the audio transport behind a lot of broadcast and live-sound infrastructure, and it normally runs on dedicated silicon or Linux boxes. This article is about getting a working, PTP-synchronized AES67 endpoint onto an ESP32-P4 -- how the clock sync, the low-latency receive path, and the I2S playout fit together, what the measured latency is, and where the edges are.