SPL Weighting Curves: The Relationship Between SPL Weighting & Human Hearing (Week 4 Video 1)

Learn how A-, C-, and other SPL weighting curves reflect human hearing and affect sound level measurements. Review key concepts for CTS exam preparation.

Frequency, Wavelength, and Amplitude (Week 1 Video 1)

Review frequency, wavelength, and amplitude and how they define sound. Connect these core concepts to real-world AV systems and CTS exam questions.

PAG NAG (Week 9 Video 3)

Learn Potential Acoustic Gain (PAG) and Needed Acoustic Gain (NAG), including how they relate to gain before feedback and sound system performance.

How Loud Should My Audio System Be?

Learn how to determine appropriate audio system levels using SPL, listening environment, audience needs, headroom, and system performance.

EPR – Estimating Loudspeaker Power Requirements

Learn how to estimate loudspeaker power requirements using sensitivity, SPL, distance, impedance, and headroom. Apply key concepts to AV system design.

Sound System Equalizing (Week 6 Video 2)

Learn the fundamentals of sound system equalization, including frequency response, system tuning, intelligibility, and practical troubleshooting.

Signal to Noise Comparison

Learn signal-to-noise ratio (SNR) and how it affects AV system performance. Review noise, signal quality, and measurement concepts for CTS exam preparation.

Setting Power Amplifier Input Levels (Week 6 Video 1)

Learn how to set power amplifier input levels using gain structure, input sensitivity, signal levels, and headroom for reliable audio system performance.

AV Math | Loudspeaker Impedance

Learn how to calculate and understand loudspeaker impedance and its impact on AV system design. Apply impedance concepts to amplifier and speaker configurations.

AV Math | Decibel Math

Learn how to perform decibel calculations and understand relationships between signal levels, power, and voltage. Build essential audio math skills for the CTS exam.