Mystery Room Mastering

Audio Mastering, Editing, and Sweetening for Video located in Milwaukee, Wisconsin

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Audio Mastering Editing Sweetening for Video

Located in Milwaukee, Wisconsin United States of America

Specialized Services:

Audio Mastering For All Digital Formats & Vinyl Pre-Mastering

Audio mastering for all genres of music, using a high quality signal chain with analog equipment and select software plug-ins. Aside from the digital world, we specialize in 24-bit pre-mastering for vinyl and cassette releases. We can also guide you through the rest of the vinyl manufacturing process including finding the right lacquer cutter, broker, or pressing plant for your project.

All mastered projects are delivered to you accompanied with a licensed version of HOFA DDP Player to make sure you’re hearing your master in it’s truest form for today’s digital world. Mastered For iTunes masters are also available to ensure that your master files will be within spec for the Mastered For iTunes program either now or in the future.

No payment is required until you are 100% satisfied with the work.

Mastered For iTunes


Mystery Room Mastering is certified by Apple to provide master files for the Mastered For iTunes program. Mastered For iTunes involves creating and uploading high resolution (24-bit/native sample rate) master audio files to your online distributor for encoding to the AAC format, which is used by Apple in the iTunes Store. Currently, the standard source file resolution for submitting audio to the iTunes Store (and most other online releases) is 16-bit/44.1k sample rate. Using higher resolution source files and following the other Mastered For iTunes guidelines will result in a better sounding experience for the end user.

Mastered For iTunes files are auditioned through the same encoder in which they will be eventually processed by Apple, so proper testing and adjustments can be made to avoid problems, and optimize audio masters for distribution via the iTunes Store.

Check with your digital music distributor to learn more about their rates and policies for Mastered For iTunes releases. Tunecore, CD Baby, and The Orchard all offer Mastered For iTunes releases.

Audio Sweetening For Video Productions

Mystery Room Mastering specializes in noise reduction (background noise & equipment hiss), general audio clean-up, dialogue editing, mixing, sweetening, and mastering for video productions of all lengths. Post-production effects and library music consultation are available as well. We are happy to do a short project on spec to demonstrate the quality of work. We have found that while video editors are great at the video portion of a project, they are often guessing or in the dark when it comes to fixing, mixing, and delivering audio within specifications and parameters of various formats. To put it another way, we would never attempt to edit a video for professional distribution. Audio and video really are two separate things.

DDP Assembly & Creation

Deliver your music to a CD manufacturer with all CD-Text, ISRC codes, and audio quality as intended without errors. If you already have sonically mastered WAV or AIFF files and need them properly assembled into a Red Book master for CD production and/or online distribution, we can assemble a DDP master for you to be sure that the finished product will not contain any errors or anomalies. Easily test the DDP master yourself with the complimentary HOFA DDP Player that will accompany your DDP master. DDP is the same file format that nearly all CD replicators use to replicate CDs, so you can listen to the exact same file from which your CDs will be created. Even if you are not replicating CDs, DDP is a great method for keeping your master sequenced properly, especially when there are songs that crossfade, or for continuous live recordings that need to be played without a gap between tracks.

Audio Forensics & Restoration

A service for law enforcement and private investigators. If you have a poorly captured audio recording that needs to be cleaned up and/or analyzed, contact us to discuss options. Results are often highly dependent on the source recording but we have the latest tools to get the best possible result at this time. We can also transfer cassette tapes, vinyl LPs, and other various sources to digital files and perform restoration work for personal or professional use.

Audio Editing, Beat Detective, & Pitch Correction

Tighten up your drum tracks using a combination of Beat Detective and manual grid editing. Extreme care is taken to be sure there are no double attacks or artifacts from bad crossfades left behind. Transparent or aggressive pitch correction is available for vocals and certain instruments using Melodyne 2 and Auto-Tune 8 in manual edit mode for minimal artifacts.

The current turnaround time for a typical full-length album is about 7 days.
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