Mastering — What It Means in Music Production
Mastering is the final stage of audio production where a completed stereo mix is processed to achieve competitive loudness, tonal balance, and consistency, and prepared for distribution across all playback formats. It is the bridge between the creative mixing process and the technical requirements of release.
Full Explanation
The mastering chain typically includes EQ (for tonal corrections and sweetening), compression (for glue and density), stereo processing (for width adjustments), and limiting (for final loudness). Each process is applied with subtlety, as mastering works on the entire mix and even small changes affect everything. A 1 dB EQ boost on the master bus is far more impactful than a 1 dB boost on a single channel.
Beyond processing, mastering involves critical listening and quality control: checking for technical issues (clicks, pops, clipping, phase problems), ensuring the track translates across different playback systems (studio monitors, headphones, car stereos, phone speakers, club systems), and verifying that loudness and tonal balance meet the standards of the target genre and platform.
Mastering also includes format preparation: setting the correct sample rate and bit depth for distribution, adding metadata (ISRC codes, track markers), ensuring proper fade-ins and fade-outs, and creating delivery files for streaming (typically 16-bit/44.1 kHz WAV or FLAC) and physical media. For album releases, mastering ensures consistent loudness, tone, and spacing between tracks.
In Electronic Music
Electronic music mastering must balance competitive loudness with the punch and dynamics that make tracks work on club systems. Always master with a reference track from your target genre and label. Check your master on multiple playback systems, especially in mono and on a subwoofer. For Beatport and club play, loudness targets are genre-dependent (see the LUFS entry). For streaming platforms, mastering to -14 LUFS integrated may leave your track sounding weak in a DJ set, so many electronic producers master louder and accept the platform normalization.