Understanding cables is critical in live sound. The right connectors keep your PA system reliable, safe, and noise-free, while the wrong ones can ruin a show or damage gear. In this guide, we break down XLR, TRS, RCA, SpeakON, and more, with clear tips on when to use balanced vs unbalanced cables and how to keep your sound clean and professional.
Understanding Sound Sources in Live Sound Engineering In live sound, every great mix starts with knowing exactly where the sound comes from and how it behaves. Sound sources are the origin points of audio signals — from a singer’s voice, to the thump of a kick drum, to the hum of an amplifier. Each source has its own tonal character, volume range, and directional pattern, all of which influence microphone choice, placement, and mixing strategy. A skilled sound engineer doesn’t just capture sound — they control it. This means identifying the type of source (acoustic, amplified, electronic), understanding its frequency range, and predicting how it will interact with other sounds in the environment. Whether you’re dealing with a solo vocalist, a full band, or a corporate panel discussion, recognising the unique qualities of each source is essential for clarity, balance, and impact. This module will guide you through: • The main categories of sound sources you’ll encounter in live sound work. • How pickup patterns (unidirectional, bidirectional, omnidirectional) influence source capture. • Strategies for managing spill, feedback, and stage noise. • Real-world examples of matching sources to microphones and processing tools. By the end, you’ll have the knowledge to approach any live sound setup with confidence, ensuring every voice, note, and beat is delivered with precision and power to your audience.
