Lip sync delay ICs are not a specific brand but a category of integrated circuits (ICs) designed to address audio-video synchronization issues, commonly used in consumer electronics, broadcasting, and professional AV equipment. These ICs are produced by various semiconductor companies worldwide, including major players like Texas Instruments (USA), Analog Devices (USA), and NXP Semiconductors (Netherlands). They serve industries such as home entertainment, digital signage, and video conferencing by minimizing lip-sync errors between audio and video signals. Key products in this category include delay processors, synchronization controllers, and DSP-based solutions.