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AGC: Automatic Gain Control
Jul 29 , 2022
What Is AGC? Automatic gain control (AGC) is a closed-loop feedback regulating circuit in an amplifier or chain of amplifiers, the purpose of which is to maintain a suitable signal amplitude at its output, despite variation of the signal amplitude at the input. The average or peak output signal level is used to dynamically adjust the gain of the amplifiers, enabling the circuit to work satisfactor...
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How to connect Tonmind 15W IP Ceiling Speaker SIP-S01A
Mar 23 , 2023
Tonmind 15W IP Celing Speaker SIP-S01A is consists of master speaker and satellite speaker, which works in pairs. SIP-S01A shares all the functions of other Tonmind IP Speaker, including compatible with VoIP, SIP devices via SIP, compatible with IP Camera VMS via ONVIF, supporting pre-recorded messages, HTTP API for alarm in transmit, 48K OPUS audio codec. Besides, SIP-S01A's advantage is cost-sav...
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How to Choose the Right Ceiling Speaker - Why TONMIND Offers a Superior Solution
Dec 12 , 2025
Ceiling speakers have become a preferred audio choice in modern environments such as schools, offices, hotels, hospitals, shopping centers, and smart buildings. They blend into the ceiling, save physical space, and deliver clear, evenly distributed audio. But with many models available from various manufacturers, choosing the right ceiling speaker can be challenging. This article compiles best pra...
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Tonmind Launches New IP Ceiling Speakers SIP-S04 and SIP-S05
Oct 15 , 2026
Tonmind is pleased to introduce two new IP audio products: SIP-S04 8W IP Ceiling Speaker and SIP-S05 20W IP Ceiling Speaker. Designed for modern IP public address and background music applications, these two new models offer clear sound, flexible installation, and smart integration for a wide range of environments. As part of Tonmind’s growing IP speaker portfolio, SIP-S04 and SIP-S05 are built to...
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Tonmind Factory PA Solution: Smart IP Broadcasting and Communication for Industrial Facilities
Oct 29 , 2026
Modern factories require reliable communication systems to ensure smooth daily operations, improve workplace safety, and respond quickly to emergencies. Traditional PA systems often have limitations in centralized management, flexible zone control, and two-way communication. Tonmind Factory PA Solution combines PA System Pro software, IP Speakers, and SIP-D26V IP Video Intercoms to provide an inte...
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