The limiter that sees between the samples. Built on 4x oversampled FIR TruePeak detection with a 48-tap Kaiser-windowed sinc interpolation filter, this is the first half of MixBus Platinum's dual-stage TruePeak system — catching the inter-sample peaks that cause real-world distortion in D/A converters, lossy codecs, and streaming platforms.
Standard limiters measure sample peaks — discrete digital values. But the analog waveform reconstructed by a D/A converter can exceed 0 dBFS by +3 dB or more between those samples. These inter-sample peaks are invisible to ordinary meters and limiters, but they cause real-world distortion in every converter, every lossy codec, and every streaming platform encoder. MixBus Platinum's TruePeak Limiter uses a 48-tap Kaiser-windowed sinc interpolation at 4x oversampling — the same mathematical reconstruction that converters use — to detect and limit these peaks before they leave the plugin.
A kick drum perfectly limited to 0 dBFS can reach +3 dB after D/A reconstruction. When Spotify, Apple Music, or YouTube re-encode your audio to AAC or Opus, those invisible inter-sample peaks cause audible distortion — crackles, harshness, and clipped transients that weren't in your master. MixBus uses a 48-tap Kaiser-windowed sinc interpolation at 4x oversampling to detect and limit these peaks before they ever reach the output. Every streaming platform recommends -1.0 dBTP maximum. This limiter guarantees it.
Broadcast regulators and streaming platforms don't care about sample peaks — they measure TruePeak. EBU R128 requires -1.0 dBTP. ITU-R BS.1770-4 defines the measurement standard. Spotify normalizes to -14 LUFS with -1.0 dBTP ceiling. Apple Music, YouTube, and Amazon Music all enforce similar requirements. Without TruePeak limiting, your audio gets flagged, re-processed, or rejected. MixBus guarantees compliance with every major standard, with program-dependent release that preserves musicality.
The limiter that sees between the samples — broadcast-compliant, streaming-ready, and musically transparent.