Processing in MS mode allows the AGC to level the center channel (vocals) independently from the wide stereo elements, stabilizing the soundstage. 3. Multiband Dynamics (Compressor / Limiter)
The goal is loudness and consistency without audible pumping, breathing, or distortion. A/B test your processed vs. unprocessed signal often.
The multiband section is the heart of Stereo Tool. It splits the audio into multiple frequency bands (typically 2 to 9 bands) so loud bass frequencies do not cause the vocals or treble to duck. Band Selection
Mastering Stereo Tool Settings: The Ultimate Audio Optimization Guide stereo tool settings
This setting helps in controlling the low-end balance of the mix. It allows you to ensure that the bass remains centered, which is crucial for mono compatibility and a solid low-end foundation.
: Stereo Tool's primary tool for achieving high perceived loudness without audible distortion. It uses psychoacoustic models to "hide" the distortion caused by clipping. The documentation notes it can make the sound up to 12 dB louder without increasing the peak level. It's intended for users who want their sound to compete with the loudest stations or streaming services.
Best for podcasters and talk radio who want a natural, transparent sound. Processing in MS mode allows the AGC to
The sheer volume of settings is both Stereo Tool’s greatest strength and its biggest hurdle. You have granular control over: De-clipper & Repair:
Mastering Stereo Tool Settings: The Ultimate Guide to Audio Optimization
If broadcasting on FM radio, enable the strict 15 kHz lowpass filter to comply with broadcasting standards and protect the stereo pilot tone. 5. Summary of Recommended Preset Profiles A/B test your processed vs
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: Experts recommend calibrating input levels to roughly -12 dBFS peaks to provide sufficient headroom for the processor to work without early clipping. Operational Tips Stereo Tool vs. master_me #6997 - GitHub
This control allows you to adjust the width of the stereo image. A setting of 0% means the signal is mono, while 100% is the original stereo width. You can also increase the width beyond 100% to create a wider image, though be cautious of potential phase issues.
Subsonic rumble (frequencies below 30 Hz) wastes amplifier power and causes compressors to overreact. Filtering it out frees up valuable headroom. 2. De-Clipper: Restoring Ruined Audio
Enhancing the stereo image should be one of the final tweaks, as it affects how the clipper will react.