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Changsha Metro
Changsha Metro
Home ProductTransportation
Background
Changsha, the capital of Hunan Province, is a major economic and cultural center in China, with a history spanning over three millennia. Known as the cradle of human civilization, the city attracts millions of visitors annually.

To address increasing urban traffic and enhance passenger safety, Changsha has expanded its metro system. Alongside infrastructure development, there is a strong focus on improving daily security and ensuring high-quality surveillance. In this context, Changsha Metro Line 6 became the first to implement SPON’s CCTV surveillance microphones, deploying 130 microphones across key locations in the metro system.
Requirements
 
Clear CCTV Audio
Enhance the audio quality of CCTV footage to provide clear and reliable surveillance in metro stations.
 
Strong Noise Reduction
Minimize background noise in both indoor and outdoor environments.
 
Easy System Integration
Ensure rapid integration with existing CCTV systems for real-time monitoring.
 
Durable Metro Use
Provide robust, durable equipment capable of operating in challenging metro environments.
TS-906A CCTV Surveillance Microphone
Advanced Noise Reduction: Multi-level adaptive algorithms minimize background and environmental noise, automatically adjusting to different scenarios.

Dual Recording Capability: Supports synchronized audio-video recording for authentic surveillance footage.

Fast Response and Clarity: Provides clear and immediate audio for real-time monitoring and rapid incident response.
TS-929E Outdoor Surveillance Microphone
Durable Construction: Aluminum alloy housing offers waterproof, dust-proof, and corrosion-resistant protection for outdoor environments.

Adaptive Noise Reduction: High-speed DSP and dynamic noise reduction algorithms deliver strong, clear audio output.

Balanced Sound Amplitude: Built-in AGC maintains consistent sound levels from varying distances, achieving balanced surveillance audio.
 
Advantages
  • Improved Surveillance Accuracy
    High-quality audio enables operators to detect incidents and unusual activity more effectively.
  • Seamless Integration
    Microphones integrate smoothly with existing CCTV infrastructure, enhancing monitoring without system disruption.
  • Reliable Operation
    Durable design ensures consistent performance in harsh metro environments, including outdoor stations and tunnels.
  • Enhanced Passenger Safety
    Clear audio support allows faster emergency response, helping maintain order and security.
Why Choose SPON?
SPON is a leading provider of IP audio and CCTV microphone solutions, specializing in transport and public safety applications. Our advanced proprietary noise reduction algorithms and adaptive DSP technology ensure clear and reliable audio capture in complex environments such as metro stations and outdoor areas. SPON offers customizable solutions that integrate seamlessly with existing CCTV infrastructure, supporting secondary development and tailored operational requirements. Choosing SPON means enhanced surveillance accuracy, faster emergency response, and dependable performance for every monitoring scenario.