Mastering Bible

Example session (illustrative; every number in a real run comes from measuring your own file).

1. Measure
I measured mix_v3.wav with ffmpeg: integrated LUFS, true peak, loudness range (LRA) and the share of energy below 60 Hz. I compared each one to the streaming target you picked and noted which were off.

2. Plan, with the reason for each move

1. Low-end cleanup first, because the sub energy reading was high and it would push the limiter too hard.
2. A gentle broad EQ tilt, judged at matched loudness so "louder" isn't mistaken for "better".
3. Light glue compression, only if the LRA reading shows the mix needs it.
4. A true-peak limiter last, set to the target's ceiling.
   One change at a time, each one checked before the next.

3. Apply and read back
I made each move in your DAW and read the actual parameter values back, so the plan and the session match.

4. Bounce and re-measure
I bounced master_v1.wav and measured it again. The report lists each target next to the measured value with pass or fail. Anything that failed gets one adjustment and a v2 bounce, never a silent overwrite.

5. Delivery checks
Sample rate, bit depth, dither applied only once at the final bit-depth reduction, and the file name matches the version.

Next steps

• Ask for a loud or Instagram version from the same mix.
• Ask for the Atmos checklist if you're delivering ADM BWF.