Tutorials

Comparing a mix against a reference only works at equal loudness, measured on a synthetic 2:40 piece in three versions: matching by sample peak left 10.78 dB of loudness difference, matching on the chorus alone was 2.5 dB off, and a reference running through the own master chain gained 1.6 LU. After loudness matching, the dense master still differed from the mix by up to 3.1 dB per third-octave band.

A vocal chain in FL Studio step by step, with the effect of each step measured on a synthetic voice signal: a high-pass at 100 Hz removed 29.4 dB below 100 Hz and cost 0.79 dB at the fundamental, the same high-pass in front of the compressor kept the voice 1.34 dB louder and removed a 1.45 dB dip on every plosive, and compression widened the distance between sibilant and vowel by 2.92 to 4.43 dB.

Release metadata step by step: what ISRC, UPC/EAN and ISWC identify, who assigns them, when the IFPI ISRC Handbook requires a new ISRC for a remix, an edit, an Atmos mix or a remaster, and which reference data belongs with each code. A measurement shows where ffmpeg 7.1.5 stores an ISRC: in MP3 only the key TSRC produces the proper ID3 frame, and in WAV the code ends up in a RIFF field that stands for Source. Finally, a check with the code validator and the MusicBrainz lookup.