L-Acoustics introduced Source Intelligence, a proprietary voice-separation technology that aims to deliver clearer, more intelligible vocals and gain before feedback for live performances. The solution runs as an exclusive licensed application on the L-ISA Processor II and fully is integrated in the L-Acoustics system workflow.

L-Acoustics said that Source Intelligence aims to provide front-of-house engineers with a toll for cleaning up vocals and allow performers to move freely across any stage configuration, including in front of the PA, without risking feedback or sacrificing vocal clarity. The technology launched at the L-Acoustics Keynote 2026 alongside the L1 large-format line array system and CS1 subwoofer. The event featured a performance by The War on Drugs.
The company said that the solution uses machine learning to continuously identify the voice in a microphone signal and remove everything else, something not previously possible in live sound.

“For decades, engineers have been solving the PA bleed and feedback problem with compromises like notch filters that color the sound, expanders that can be unpredictable, or staging layouts that pull performers away from the audience,” said Ryan John, director of product management, software at L-Acoustics. “Source Intelligence removes that trade-off entirely. The machine is continuously listening and continuously working, so the engineer can focus on the mix instead of fighting feedback, and the performer can own the whole stage.”

The company said that in blind listening tests with both internal and external participants, Source Intelligence consistently ranked highest for voice quality among competitors, removing up to 40 dB of non-voice signal. The technology aims to reduce feedback risk by eliminating the PA bleed and ambient noise that cause it.

Source Intelligence has been used for touring productions, Broadway shows and houses of worship since the Spring of 2025. The company said that the solution was designed to work with handheld, headset, lapel and distant-pickup microphones, and processes up to four channels at the same time.

“I’m very impressed with how much headroom it gives me. I was able to get crisp, clean vocals in any scenario—including very loud stage environments and actors in front of the PA,” said Cody Spencer, Tony Award-winning sound designer who used it on the Broadway production Dog Day Afternoon.

Source Intelligence is part of a growing portfolio of licensed technologies that run on the L-ISA Processor II as part of the full L-Acoustics ecosystem, the same platform that powers L-ISA Immersive Hyperreal Sound, L-Acoustics DJ, Ambiance and HYRISS. Source Intelligence is now available as a software subscription via L-Acoustics All Access for the L-ISA Processor II, exclusively for L-Acoustics system deployments.