Lecture Hall Soundproofing & Acoustic Solution

Does Your Lecture Hall Exhibit the Following Phenomena (Problems):

1. Sound trailing off, blurring, or reduced speech clarity (inappropriate reverberation time);
2. Repetitive delayed echoes (distinct echoes) or repeating sounds with shifting frequencies (flutter echoes);
3. Abnormally loud sound in certain areas (sound focusing) or unnatural tonal coloration (sound coloration);
4. Excessive sound pressure levels in the front rows cause discomfort, while insufficient volume in the back rows forces listeners to strain (uneven sound distribution);
5. Disruptions from traffic noise, HVAC systems, or nearby construction, reducing speech intelligibility (external noise intrusion);
6. HVAC or other equipment noise is transmitted through air or structure, with low-frequency "humming" masking speech details. This noise is particularly harmful to soft-spoken voices (internal equipment noise).

As a venue where speech clarity is paramount, acoustic issues in a lecture hall can severely hinder information delivery and audience experience.

With CYATCO Acoustic Design, You Can Resolve the Above Issues:

1. Speech Clarity as the Priority

Ensure that every syllable in speeches, lectures, and other spoken content is accurately received by the audience, particularly in the critical frequency range (500Hz–4kHz), to prevent muffled sound caused by excessive reverberation or noise.

2. Uniform Sound Field Distribution

Maintain sound pressure level (SPL) variations within ±3dB across all seating areas, eliminating issues such as excessive loudness in the front, insufficient volume in the back, or uneven coverage on the sides.

3. Optimal Reverberation Time

Adjust the mid-frequency (500Hz) reverberation time to 0.8–1.2 seconds, depending on the venue’s size and primary use (e.g., speech-focused or mixed music applications), avoiding excessive tailing or an overly dry acoustic environment.

4. Adequate Loudness & Dynamic Range

Ensure compliance with sound pressure level standards (e.g., ≥65dB for speech reinforcement) while retaining sufficient dynamic headroom to handle sudden high-SPL scenarios.

5. Elimination of Acoustic Defects

Prevent echoes, flutter echoes, sound focusing, and low-frequency humming through optimized room geometry and acoustic treatment, ensuring a clean and natural sound field.

Lecture Hall Acoustic Design Reference Cases

Click & Learn More >> Shenzhen Middle School Multi-Functional Lecture Hall

Click & Learn More >> Guangzhou Financial Securities Conference Room

Click & Learn More >> Guangdong Pearl River Beer

CYATCO gives you many acoustic materials from which to choose.

Lecture Hall Soundproofing Products

Lecture Hall Sound Absorption Products

What success looks like

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Get started easily with our personalized, overall solution support. Let CYATCO acoustic experts help you customize your acoustic plan.