Send Large Audio Files (WAV, FLAC, Stems)

Step by step

1. Export and collect

   Bounce your mix or stems, or collect your session, into a single folder.

2. Drop the folder in

   Drag it onto send.enzonic.com. Multiple files and folders are zipped in the browser with their structure kept.

3. Label it

   Add a title and message with the song name, version, tempo and sample rate.

4. Share

   Send the link, or give the 6-digit code to someone entering it at send.enzonic.com/receive.

Audio is easy to damage without noticing. A voice-note feature might turn your master into a low-bitrate file, and some apps quietly transcode what you attach. Meanwhile, a few minutes of multitrack WAV is already past most email attachment limits. If you are passing mixes to a mastering engineer, stems to a remixer or a session to a collaborator, you want the files to arrive exactly as exported.

Formats and what to expect

Enzonic Send does not inspect or convert audio, so every format goes through the same way. What changes is how much space your files take.

Doing the size maths

Uncompressed audio size is easy to work out: sample rate times bit depth times channels gives the bitrate. CD-quality stereo (44.1 kHz, 16-bit, 2 channels) is about 1,411 kbps, which is roughly 10 MB per minute. Double the sample rate or move to 24-bit and the size grows in proportion. A stems folder multiplies it again by the number of stems.

So a single stereo master usually fits comfortably under 500 MB. A full set of 24-bit stems for a long track may need a free account for the 2 GB limit, or a lossless conversion to FLAC.

Sending stems the way engineers like them

A clean stems delivery saves a round of emails. Before you upload:

• Start every stem at the same point, usually bar 1 or 0:00, so they line up when dropped into a new session.
• Use one sample rate and bit depth for all of them, matching the session.
• Name files clearly: SongName_120bpm_Drums.wav, SongName_120bpm_Bass.wav, and so on.
• Include a reference mix so the recipient can check they have rebuilt it correctly.
• Add a notes file if there are tempo changes, key changes or plug-ins printed into the stems.

Then put everything in one folder and drag it onto send.enzonic.com. The folder is zipped in your browser, subfolders included, so the recipient extracts one file and sees your layout. Sending a folder explains how that works.

Sending a full DAW session

Sessions reference audio files stored in different places on your drive. Collect everything into one location before sending, or the recipient will open a project full of missing files.

Ableton Live

Use File > Collect All and Save. This copies referenced samples and recordings into the project folder. Then drag the whole project folder in.

Logic Pro

A .logicx project is a macOS package, which is really a folder that Finder shows as a single file. To send it reliably, use File > Save As with the option to copy audio files into the project, then right-click the project in Finder and choose Compress. Upload the resulting .zip. See sending a zip file if you want more detail.

Pro Tools

Use File > Save Copy In with the audio files option selected, saving to a new folder. That folder contains the session file plus its audio, ready to drag in.

Other DAWs

Most have an equivalent "collect", "consolidate" or "save with media" option. Look for it before you upload.

If it is too big

Anonymous transfers are capped at 500 MB, and signed-in transfers at 2 GB. If your session goes past that:

1. Convert WAV stems to FLAC, if the recipient's DAW reads FLAC. It is lossless, so nothing is lost.
2. Remove unused takes and audio before collecting the session.
3. Split the delivery: stems in one transfer, session and extras in another.

Zipping on its own will not shrink audio much. Compressing again in a separate zip tool before uploading usually just adds a step.

Who gets access

Every transfer has a link, a 6-digit code and a QR code. For unreleased music:

• Add a password and share it separately.
• Set a download limit, from 1 to 100.
• Choose an expiry: 1 hour, 1 day or 3 days without an account, up to 7 days signed in.

Files are encrypted in transit and at rest, though not end-to-end encrypted, and they are deleted automatically at expiry. As the sender, you can delete a transfer sooner at any time.

The recipient does not need an account. They open the link, or type the code at send.enzonic.com/receive, and download the files to drop straight into their session. For other files that bounce off mail servers, see files too big for email.

FAQ

Updated 2026-10-17