Audiofile DDP

Audiofile DDP is a mastering-grade DDP player and delivery tool for macOS.

Proof your DDP image before it ships to replication. When you're ready to deliver, package it the way your artist actually wants to hear it — on the iPhone in their pocket.

Export the master as a signed Audiofile DDP bundle — a single .audiofileddp file. Your studio identity, welcome message, and album art are baked into the bundle. The audio itself is cryptographically signed at export and verified on the receiving device — no unlock code for your artist to type, no per-delivery activation. Drop the bundle into Mail, iMessage, AirDrop, or an iCloud Drive share. Your artist taps it once. If they don't have the free Audiofile DDP Player on their iPhone or iPad yet, Apple's native install flow walks them straight to the App Store — no separate link to share, no QR code, no walkthrough page. One more tap and they're inside the bundle, hearing the master through the same audio engine you proofed it on.

Other DDP delivery tools turn artist review into a desktop chore: download a third-party player, type in an unlock serial, sometimes run a one-off "custom player" the engineer had to compile for the specific delivery. Audiofile DDP replaces all of that with one signed file and a free, Apple-native receiver. The bundle proves itself; the artist never sees a code. Proofing on macOS, review on iOS, every step Apple-native — no web UI, no plug-ins, no sideloading, no friction between the master leaving your studio and your artist hitting play.

Built for mastering engineers, labels, replication handoffs, archival projects, reissues, and artists who still deliver physical masters.

DDP inspection:
- Open raw DDP folders, zipped DDP images, and .audiofileddp bundles
- Inspect DDPID, DDPMS, CD-Text, ISRC, UPC/EAN, Master ID, SCMS, track starts, durations, gaps, and indexes
- Verify the actual disc image before it leaves your studio

Playback and final-check metering:
- Bit-perfect CD-rate native 44.1 kHz / 16-bit DDP playback
- Gapless transport with track, disc, and remaining time displays
- Cue to each track transition — verify gaps, fades, clicks, and pops
- Peak/RMS VU-style metering
- EBU R128 LUFS: Momentary, Short-term, Integrated, and Loudness Range
- Goniometer / vector scope with stereo correlation
- Waveform overview with playhead and scrub-to-seek

Delivery:
- Export a cryptographically signed Audiofile DDP client bundle
- Add studio branding, album art, artist info, and a client welcome note
- Include a feedback email so clients can send timestamped notes from iPhone or iPad
- Export a PQ Sheet PDF
- Export individual tracks, or all tracks, as 44.1 kHz WAV

Free to try for 14 days. Unlock for $49.99 with a one-time in-app purchase.
No subscription. No account required.

Audiofile DDP is built by Audiofile Engineering, makers of professional audio tools since 2004.