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SIGNAL / PRIVATE RECORDING INFRASTRUCTURE

[ 001 ] -- For sessions that can't be redone

Never lose a second.

Local-first capture, redundant chunked upload, browser-only for guests. Multi-camera and multi-input audio per participant -- your USB interface, your drum machine, your B-cam, each on its own bit-perfect stem. Three lanes for what comes after.

BUILT FORpodcast networks*voiceover studios*audiobook publishers*documentary post houses*legal investigations
REC / 48kHz * 24/32-BIT WAV * UP TO 4K * VP9 / H.264
TRK_01 / CH_L+R / SEQ 00342
T+00:42:17.082
CHUNK00342 / 00509
UP94.2%
LOSS0.00%
SHAa8f3c91...

[ 002 ] -- One engine, three stakes

One engine. Every angle. Every voice.

The same capture engine records a solo songwriter at home, a documentary interview across two continents, and a witness deposition in a corner office. Multi-camera AND multi-input audio per participant -- every camera, every audio interface, every instrument source on its own bit-perfect stem. What changes between lanes isn't the engine -- it's what wraps around the recording.

SCENE / STUDIO LANE

A songwriter records remotely with their producer -- voice on the studio mic, guitar through a USB interface, drum machine on a loopback channel. Three sources, three bit-perfect stems land in the producer's session ready for Logic. Nothing to de-mix, nothing to clean up, nothing to email after the call ends.

SCENE / PREMIUM LANE

A deposition runs in a corner office. Witness on the primary cam, room cam in the corner for context, counsel on a separate participant's stem. An exhibit hands across the table; the marker drops at 00:42:17; the PDF's SHA-256 locks into the audit log. Every angle hashed, every voice auditable, every artifact ready for the production set.

SCENE / DEDICATED LANE

A government agency's internal investigation runs the same workflow -- same multi-cam, same per-voice isolation -- on a stack only their security team has keys to. The capability is identical; the perimeter is yours.

Same engine. Same multi-cam, multi-input capture. Same per-source isolation. The lane decides what wraps around the recording, not how the recording happens.

[ 003 ] -- The recording system

Six guarantees, every session.

CraterSync is built around a single idea: the recording on disk is the product, not the feed in the browser. Everything else follows.

NODE 01

Local-first capture

Every participant records at source quality on their own device. Recording quality is decoupled from call quality -- your masters are never compressed to fit the network.

NODE 02

Progressive upload

Chunks travel to the cloud while you're still recording. By the time you stop, most of the session is already safely ingested. No multi-hour waits.

NODE 03

Separate tracks

Each voice on its own stem. Each camera on its own track. Edit with the same freedom a studio engineer expects -- no mixed-down surprises.

NODE 04

Session recovery

Network drops pause uploads, not recordings. Chunks are persisted locally and resume automatically the moment connectivity returns.

NODE 05

Per-session encryption

Every session gets its own 256-bit DEK. Chunks are sealed with AES-GCM before hitting storage. Retention ends with a cryptographic erase, not a support ticket.

NODE 06

One-link guest join

Send a link. Guests walk through a device check in their browser -- no account, no install. Hosts see permissions, bandwidth, and health at a glance.

[ 004 ] -- Two trust models

Managed Cloud, or Dedicated single-tenant.

Same platform, same guest experience, same recording engine. Two ways to engage -- shared cloud or your own isolated stack -- because security teams don't all approve the same shape.

MANAGED CLOUD

Managed Cloud

We run the stack. You sign up, record, ship -- in minutes.

  • Multi-tenant SaaS, isolated by tenancy controls
  • Self-serve Studio from $299/mo; Premium $1,499/mo
  • 30-day money-back guarantee on Studio + Premium
DEDICATED CLOUD

Dedicated Cloud

Your own isolated stack. We operate it. Annual contract, sales-led.

  • Single-tenant Postgres, object storage, KMS
  • Custom subdomain or vanity domain
  • Custom DPA, right-to-review, custom retention

Compliance constraints rule out cloud entirely? Talk to us.

[ 005 ] -- Built for the work that needs it

Pick the workflow closest to yours.

Long-tail, high-stakes recording. The platform is the same -- the page below speaks to your specific shape of session.

Data never leaves your perimeter

Postgres, object storage, keys, and audit log stay in the network your security team approved. The only public surface is the guest join URL.

Retention is a policy, not a ticket

Per-org retention windows trigger cryptographic erasure on a schedule. Admins export the full audit trail as CSV whenever compliance asks.

Enterprise controls, consumer-simple guest

SAML / OIDC for your team. Verified-domain SSO lookup. Email-code sign-in everywhere else -- no passwords to leak. Guests still click a link and record.

[ EOF ] -- READY FOR A REAL SECURITY REVIEW

Your recording system should be approvable.

Every piece of the platform was built so your security team can actually sign off. Talk to us about the deployment model your compliance review will clear.