New Gear Review: Soundizers Stereomonoizer

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StereoMonoizer is a standalone utility that analyzes audio files to ascertain if they contain stereo information or are merely mono recorded on a stereo track. Many DAW programs render their virtual instruments’ outputs as well as live audio on stereo tracks by default—even in the absence of actual stereo content. The problems start when those tracks are exported for mixing in another DAW such as Pro Tools.

By converting those faux stereo tracks to single mono tracks, you cut your CPU usage and gain better file management with less hard drive space used. After importation into StereoMonoizer, the files are analyzed and a real-time waveform display and playback audition engine shows the entire length of the audio file with any stereo content shown in blue; monaural audio is shown in grey.

StereoMonoizer is an automated batch processer with a drag-n-drop interface for files/folders and offers a recommended conversion method. If there are stereo or mono files, they will not be converted.

StereoMonoizer works with either aiff and wav file formats and you can save time by using preset processing modes for your own file/folder/naming preferences.

Soundizers’ StereoMonoizer software runs on Macs and Windows PCs. It sells for $49 for the single license and $79 for two licenses.


Barry Rudolph is a recording engineer/mixer who has worked on over 30 gold and platinum records. He has recorded and/or mixed Lynyrd Skynyrd, Hall & Oates, Pat Benatar, Rod Stewart, the Corrs, and more. Barry has his own futuristic music mixing facility and loves teaching audio engineering at Musician’s Institute, Hollywood, CA. He is a lifetime Grammy-voting member of NARAS and a contributing editor for Mix Magazine. barryrudolph.com