Suitable Audio Files For Your Mixing & Mastering Session

Suitable Audio Files For Your Mixing Session
Book Mixing
File Format
- Only audio files and ZIP archives (zip, gz, gzip, rar, 7z)
- .WAV / .AIFF audio files (.WAV recommended)
- Bit depth: up to 32 bit (24 bit – 32 bit recommended)
- Sample rate: up to 96 kHz (44.1 kHz – 96 kHz recommended)
File Size & Length
- Maximum single file size: 256 MB
- Maximum file count: 50
- Maximum file length: unlimited
File Quantity
- Maximum file upload quantity: depending on the mixing package you choose (allowed audio tracks)
- Note: rough mixes & reference tracks do not count in that regard; you can always upload one rough mix and one reference track “on top.”
File Naming
- Make sure to name each file meaningfully
- Please include the type of audio content in the file name
- Make sure each file is distinguishable by name & song (in case you upload files for multiple different songs)
- Feel free to add desired mixing hints in the filename, e.g., panning hints “left, center, right (LCR).”
File Bouncing
- Before bouncing your track(s), set all faders to zero
- Bypass any processing & effects (only keep processing & effects (e.g., like distortions) that are an integral part of the sound)
- Turn off any limiting before bouncing your track(s)
- All files should be of the same duration & length
- All files should start from 00:00:00 in your DAW (even if it is a blank space)
Suitable Audio Files For Your Mastering Session
Book Mastering
File Format
- Only audio files and ZIP archives (zip, gz, gzip, rar, 7z)
- .WAV / .AIFF audio files (.WAV recommended)
- Bit depth: up to 32 bit (24 bit – 32 bit recommended)
- Sample rate: up to 96 kHz (44.1 kHz – 96 kHz recommended)
File Size & Length
- Maximum single file size: 256 MB
- Maximum file count: 50
- Maximum file length: unlimited
File Quantity
- Maximum file upload quantity: depending on how many songs you ordered mastering for
- Note: reference tracks do not count in that regard; you can always upload them “on top.”
File Naming
- Make sure to name each track meaningfully
- Make sure each track is distinguishable by name & album (EP / LP) (in case you upload multiple files for mastering)
- Feel free to add the sample rate and bit depth of your file, like “44.1 kHz 24 bit.”
File Bouncing
- Provide the highest quality versions of your stereo mixes (.WAV / .AIFF)
- Turn off any limiting before bouncing your track(s)
- Leave enough headroom in your mixes (peaking at no more than -3dB)
- Make sure your mix is not too loud! (-18 to -14 LUFS recommended)
Common Audio File Upload Mistakes
Upload & Files FAQ
You Upload .MP3 Files
If .MP3 is your highest-quality format, we can work with it. We strongly recommend uploading high-quality .WAV files! .MP3 are not optimal for professional audio processing.
Nonetheless, we can still achieve great results by working with .MP3 files. Please remember that .MP3 files are highly compressed 16-bit audio files that lack crucial frequency content, especially in the high-frequency range.
Please note: If you convert an .MP3 file to a WAV file, you do not get higher sound quality; you just change the format!
You Upload DAW Project Files
Please do not upload DAW (digital audio workstation) project files. We only work with audio files.
Your Audio File Is Too Loud
- Turn off any limiting before bouncing your track(s)
- Leave enough headroom in your mixes (peaking at no more than -3dB)
- Make sure your mix is not too loud! (-18 to -14 LUFS recommended)
Your Audio File Contains Reverb & Effects
- Turn off any reverb before bouncing your track(s)
- We apply processed, multi-layered, high-end reverbs and effects on your track
- Remember: If you upload tracks with reverb and effects, any processing, like EQ, gating, and compression, will inevitably be applied to these effects as well, which can lead to unwanted tonal balance and artifacts. You can avoid this by uploading “dry” tracks
- Only keep effects that are an integral part of your track
Your Audio File Contains Severe Issues
- Make sure to avoid digital clipping/distortion of your tracks
- Make sure to avoid excessive amounts of “clicks & pops” in your tracks
- Avoid unwanted background noise / excessive microphone “bleeding,” or excessive amount of reverberation in your recordings
- Make sure all your audio files can be opened & aren’t corrupt

Mixing Monster
Perfect Mixes Start With Great Recordings
