RadioKit Diretta Beta Program Forum Beta Updates
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🧪 BETA PROGRAM

📡 RadioKit Diretta

Professional software for low-latency audio contribution. Connect your field reporter to the radio studio live — over the internet, in broadcast quality.

How it works

RadioKit Diretta creates a real-time audio channel between two endpoints: the reporter in the field (REMOTE) and the radio studio (STUDIO). The connection goes through the RadioKit relay server — no network configuration required.

🎙
Reporter
REMOTO
TCP Opus
Low latency
🌐
Relay Server
:7400
Forward TCP
🎧
Studio
STUDIO

⚡ Typical latency 80–150ms — Opus codec 48kHz stereo — TCP (traverses NAT/firewall)

🔐 License & unique room

Each beta license includes a unique 6-character room code. STUDIO and REMOTE enter the same code to connect. No one else can access your room.

🔒 Privacy & security

The license is bound to PC hardware (HWID). Audio is transmitted directly between endpoints via relay — the server never records any audio.

Audio output modes

Two modes to integrate the reporter voice into your radio setup:

Mode A — Virtual device (VB-Cable)

Received audio is routed to VB-Cable. RadioBOSS, OBS or any DAW sees it as a normal microphone input. Full-duplex: both sides use RadioKit Diretta.

Ideal for: live broadcasts with audio return for the reporter

  • 1Install VB-Cable (free at vb-audio.com)
  • 2Select VB-Cable as output in RadioKit Diretta (STUDIO)
  • 3Set VB-Cable as audio source in RadioBOSS

Mode B — HTTP Stream (receive only)

The REMOTE audio is served by the relay as an ICY MP3 stream. RadioBOSS connects to your room's fixed stream URL. The studio PC does not need RadioKit Diretta installed.

Ideal for: automated playout, maximum simplicity, no extra software in studio

http://187.77.166.39:7401/<CODICE>/stream

💡 The room code is in your beta license — configure RadioBOSS once only.

Features

Everything you need for professional audio contribution.

🔊

Codec Opus HQ

48kHz stereo Opus, 64–320 kbps. Broadcast quality even on sub-optimal connections.

Low latency

Adaptive jitter buffer, 80ms target. 20ms frames. TCP traverses NAT/firewall without configuration.

🎙

On Air Monitor

ON AIR button in studio with LED visible to remote. The reporter knows when they are live.

📊

VU Meter

VU meter targeting -18dBFS, green/yellow/red zones. Integrated clip guard.

💬

Built-in chat coming soon

Two-way text chat studio-reporter. Off-air communications without using the audio channel.

🌍

Bilingual IT/EN

Italian and English interface. Switch language with one click without restarting the app.

🔑

HWID License

License bound to PC hardware. Key RK-XXXX-XXXX-XXXX-XXXX. 7-day offline grace period.

📡

HTTP Stream (Mode B)

ICY/Shoutcast MP3 stream for RadioBOSS/VLC/OBS. Fixed URL per room — no reconfiguration needed.

🔌

Auto port

Automatic free port detection (7500, 7501…). Multiple instances on same PC without conflicts.

Technical specifications

ParameterValue
Audio codecOpus (preferred) · PCM+zlib (fallback)
Sample rate48.000 Hz stereo
Opus bitrate64 / 96 / 128 / 192 / 256 / 320 kbps
Audio frame20ms (960 samples @ 48kHz)
TransportTCP (NAT/firewall) · UDP
Relay server187.77.166.39 — OVH VPS EU
Relay port7400 (UDP+TCP)
HTTP stream port7401 (MP3 ICY/Shoutcast)
Target latency80ms (adaptive jitter buffer)
HTTP stream320 kbps MP3 stereo 48kHz
Stream compatibilityRadioBOSS · VLC · OBS · Winamp
PlatformWindows 10/11 (64-bit) · macOS 11.0+ Intel & Apple Silicon
Size~60MB (Windows .exe) · ~80MB (macOS .dmg)

System requirements

💻 Hardware & OS

  • Windows 10 / 11 (64-bit)
  • macOS 11.0+ (Intel & Apple Silicon)
  • Any modern CPU
  • RAM: 256MB minimum
  • Working sound card
  • Internet min 256 kbps upload

🎛 Optional software

  • VB-Cable (Windows Mode A — free)
  • BlackHole (macOS Mode A — free)
  • RadioBOSS (Windows Mode B)
  • OBS Studio (alternative)
  • Microphone or USB mixer

🌐 Network

  • No port forwarding
  • Works behind NAT/firewall
  • Works with 4G/5G hotspot
  • Port 7400 TCP outbound

🔑 Beta Program

  • Free registration
  • Approval within 24h
  • 30-day renewable license
  • Guaranteed launch discount

FAQ

❓ Do I need to open ports on my router?

No. RadioKit Diretta uses outbound TCP connections to the relay server. It works with 4G/5G hotspots and behind any firewall.

❓ On Mac it says "cannot be opened because developer cannot be verified"?

This is macOS Gatekeeper. Right-click the app → Open → Open. You only need to do this once. We are working on digital signing to remove this step.

❓ Can I use it with RadioBOSS without a studio PC?

Yes — with Mode B. The reporter uses RadioKit Diretta in REMOTE mode. RadioBOSS connects to the fixed stream URL of your room. The studio PC needs no additional software.

❓ How many simultaneous broadcasts?

Unlimited. Each STUDIO+REMOTE pair uses a separate room identified by a unique code — they never interfere with each other.

❓ What happens if the connection drops?

The app attempts automatic reconnection. The jitter buffer absorbs small interruptions without audio glitches.

❓ Is audio recorded on the server?

No. The relay transfers packets in real time without recording them. See our Privacy Policy.

❓ What quality does the HTTP stream (Mode B) have?

320 kbps MP3 stereo at 48kHz — more than adequate for any AM/FM/DAB+ broadcast. Audio is decoded from Opus and re-encoded to MP3 in real time on the relay server.

🚀 Start today — it's free

Sign up for the Beta Program, get your license and download RadioKit Diretta.
As a beta tester you'll have priority access and a guaranteed discount at official launch.