Simple Explanation

Sony’s proprietary automatic room calibration technology used to optimize audio output in home theater setups.

Concise Technical Definition

DCAC analyzes room acoustics using a microphone and automatically adjusts speaker levels, distances, and frequency response to achieve optimal sound from an AV receiver in the user's specific environment.

Layman-Friendly Analogy

It's like having a sound engineer come to your home and fine-tune your speakers so everything sounds just right, no matter where you sit.

Industry Usage Summary

DCAC is found in many Sony AV receivers and home theater systems. It's especially useful for casual users who want improved surround sound without manual calibration.

Engineering Shortcut

Measures room acoustics with a test mic, then adjusts EQ, delay, and output for each speaker based on phase alignment and detected distances.

Full Technical Explanation

Digital Cinema Auto Calibration (DCAC) is Sony’s automated room correction system. By using a supplied calibration microphone, it detects speaker placement and room reflections to compensate for audio imbalances. DCAC adjusts parameters like speaker distance, level, phase, and equalization. More advanced versions (DCAC EX or DCAC IX) include multipoint measurements and speaker pattern recognition.