Contact Phone
(852) 3104 3323 (Main) / (852) 3126 1732 (Sales)
(852) 3104 3326 (Fax)Address
3/F, Ray Centre, 88 Hung To Road,
Kwun Tong, Hong Kong
S-Track Lark: Intelligent Room Acoustic Calibration
Clearer, Natural Sound. Zero Howling. Automatically Adapted.
In modern educational environments, every classroom has a unique “acoustic fingerprint.” Walls, furniture, and room size all impact how sound travels. S-Track Lark Room Acoustic Calibration eliminates the guesswork, automatically optimizing your audio system to match both the speaker’s voice and the specific classroom environment.
Why Room Acoustic Calibration?
Standard audio setups often suffer from “howling” (feedback), muffled speech, or uneven volume. Our intelligent calibration technology performs a “CT Scan” of your classroom’s acoustics to ensure every student hears a natural, crystal-clear voice without the distraction of audio interference.
The 4-Step Precision Calibration Process
The Lark system uses a sophisticated 4-step process to map and optimize your audio environment in seconds:
1. Acoustic “CT Scan” (Logarithmic Sweep)
The system plays a logarithmic sweep signal ranging from 20Hz to 20kHz. By moving continuously from low to high frequencies, the Lark performs a precise “CT Scan” of the entire audio chain—including the DAC, power amplifier, speakers, air transmission, and room reflections. This captures the complete “response fingerprint” of the environment.
2. Digital Room Mapping
Using the data from the sweep, the system identifies how the room’s architecture affects sound. It detects resonance points and reflective surfaces that typically cause echo or muddiness.
3. Automatic Feedback Suppression
The calibration intelligently identifies the specific frequencies prone to feedback (howling). It proactively notches out these problem frequencies, allowing for higher volume levels and clearer speech without the risk of ear-piercing shrieks.
4. Natural Voice Optimization
Finally, the system adapts the output to the speaker. By balancing the room’s acoustics with the microphone’s pickup, it ensures the teacher’s voice sounds natural and effortless, reducing vocal fatigue and improving student comprehension.
Please contact us at sales@securex.hk for more information.