Compare mastering before and after at matched volume

Choose the exact versions

Keep the approved source mix and returned master clearly labelled. Select matching passages and align playback so differences in arrangement or start time do not confuse the comparison. Do not compare a demo and a revised performance as if mastering alone caused every difference.

Match the review level

Use appropriate gain adjustment or a suitable comparison tool, then keep the monitoring setup stable. iZotope recommends level matching when referencing to avoid confusing loudness with tonal or dynamic improvements. This is a listening adjustment, not an instruction to overwrite either source file.

Evaluate specific musical questions

Listen for vocal clarity, low-end control, transient character and intended dynamics. Note exact times and observations rather than writing only louder or better. Example: check whether a chorus remains engaging at matched level without the vocal becoming harsh. Rest and revisit if listening fatigue makes the judgement unreliable.

Record approval or revision

Keep the comparison conditions, feedback, engineer response and exact approved export. Review the full master before delivery, not only the strongest passage. This guide does not analyse client files, provide a clinical hearing recommendation or guarantee that one measured level determines the best artistic result.

Sources and review

Reviewed 4 November 2026. Platform requirements and plan terms can change. Examples are planning aids, not a promise of account access, release acceptance or earnings.

• iZotope level-matched comparison
• DistroBolt revision approval

Continue your release planning

• Set a measurable objective for a release campaign
• Build a music content calendar you can maintain
• Plan a repeatable TikTok series around your own music

Ask the DistroBolt team about your release. Send a concise question and release reference; never send account passwords or verification codes.