SwingFiles
opus → ndjsonANALYZE • Local processing

Summarize audio .OPUS → .NDJSON

Create a data or document summary of the audio signal. The output is a derived view; it does not preserve the complete source file.

Output scope: The output is a derived view; it does not preserve the complete source file.

Summarize audio .OPUS → .NDJSON

Drop Files for Local Browser Processing

Auto-detects magic bytes • Zero daily caps • Instant ZIP & P2P Swing chaining

Target Format & Engine Parameters

ANALYZE: Create a data or document summary of the audio signal. The output is a derived view; it does not preserve the complete source file.

Compute Engine:

Technical Specifications: OPUS (.opus) vs NDJSON (.ndjson)

Specification ParameterSource: .OPUS (OPUS)Target: .NDJSON (NDJSON)
Full Format NameIETF Opus Interactive AudioNewline-Delimited JSON Stream
IANA MIME Typeaudio/opusapplication/x-ndjson
Magic Byte Signature (Hex)4F 67 67 537B 22
Compression & FidelityLossy / PerceptualLossless Supported
Alpha / Transparency & DepthUTF-8 / Binary Structured StreamUTF-8 / Binary Structured Stream
Typical Size Reduction Ratio16:11.0:1
OS & Platform SupportCross-Platform via SwingFiles WebAssembly EngineCross-Platform via SwingFiles WebAssembly Engine

Processing Steps

  1. 1. Drop .OPUS Files Locally
    Choose OPUS (audio/opus) files from your device. The browser checks their type before processing.
  2. 2. Summarize Locally
    Create a data or document summary of the audio signal.
  3. 3. Save .NDJSON or Swing P2P
    Download the .ndjson output, export a batch ZIP, or choose "Convert & Swing" to transfer it to another device.

Frequently Asked Questions

What does this OPUS to NDJSON route produce?

Create a data or document summary of the audio signal. The output is a derived view; it does not preserve the complete source file.

Does the .opus file leave my device?

The conversion runs in your browser. Files are not uploaded to a conversion server.

Can I process large .opus files or batches?

There is no daily conversion quota. Large files and batch size depend on available browser memory and the format engine.

Reverse Pair (NDJSON-TO-OPUS) & Related Format Conversions

Reverse: ndjson to opus
NDJSON to OPUSOPUS to CSVOPUS to JSONOPUS to PARQUETOPUS to TSV

Same-Wi-Fi P2P Radar Discovery

Devices on the same Wi-Fi appear automatically below — zero codes needed

Scanning local Wi-Fi subnet… Open this page on another device to pair automatically
AES-256-GCM file key stays in the peer channel; compare fingerprints before transferringPeer-to-peer · live speed appears during transfer

Phone ↔ PC Room Pairing

VERIFY PEER
6-Digit Swing Room Code
---

Drop Unlimited Files to Swing (20GB+ Direct-to-Disk Stream)

Zero cloud upload caps • 64KB chunked SCTP DataChannel • 4MB backpressure • Mobile Screen WakeLock protection

Ready for zero-cloud WebRTC SCTP streaming (64KB chunks, 4MB backpressure control).
WakeLock: STANDBY