Songmastr is a reference-based online mastering service. A creator uploads a finished mix and either chooses a catalog reference or supplies an authorized reference track; the system then adjusts RMS, frequency response, peak amplitude, and stereo width and returns several uncompressed WAV masters.
Mastering cannot repair a poor arrangement or mix, and a reference track is not permission to copy protected creative elements. Leave adequate headroom, avoid limiting the input, choose a genuinely comparable reference, use only files you may upload, compare at matched loudness, and inspect clipping and tonal balance before release.
Research basis: This is a source-based directory listing prepared from public product information; it is not represented as a hands-on test. Last updated August 8, 2026. Read our methodology.
For the latest pricing, please visit this link: https://www.songmastr.com/credits/
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