How's your mix sounding?
Drop in a bounce and we'll check it like a second pair of ears would: loudness, peaks, clipping, how it holds up in mono, and where the tone is heavy or thin. Every note comes in plain words, and you can hear the suggested EQ moves before you touch your session.
Your audio never leaves your device. Mix Check runs right here in your browser. Nothing is uploaded, saved or sent to us.
Pick a song you love the sound of. It's checked on your device too.
B plays your mix through the suggested EQ moves, turned to the same loudness as A so the louder one doesn't win.
THE REPORT
Phase correlation –
EQ MOVES TO TRY
HEAR THEM ON BThese are broad strokes for the whole mix. Often the better fix is the same move on the one instrument causing it.
Hear what Studio 48 does to it.
Studio 48 is our 48-channel recording and mixing app for Apple-Silicon Macs, with the sound and feel of a real console. Loudness and true peak metering are built into its master section, right where you finish the mix. It's a free download right now. Leave your email and we'll write once, on 10 November, when the founder price opens.
You're on the list.
We'll email you once, on 10 November. Thanks for checking your mix with us.
HOW WE MEASURE
Loudness follows ITU-R BS.1770-4 and EBU R128: K-weighted, gated 400 ms blocks for integrated loudness, 3-second windows for short-term, and EBU Tech 3342 for loudness range. We test it against the EBU test signals and against ffmpeg's R128 meter; results agree within 0.1 LU.
True peak is read with 4x oversampling (2x at 96 kHz). Clipping means runs of samples pinned flat at full scale, or at the file's own ceiling. WAV and AIFF files are read sample for sample; compressed files go through your browser's decoder.
Tone guides are broad shapes we set from finished mixes and masters we measured. They're a starting point, not a rule. For the truest comparison, pick a reference track you love. Streaming figures are from Spotify's loudness guidance, checked October 2026.