Product Details

Digimedia Explorer is a free desktop application for broadcast engineers and audio professionals. It automatically discovers every Audio-over-IP stream on your network, lets you pre-listen to any stream on your local sound card, and provides broadcast-grade metering — all in a single window, with no configuration required. Available for Windows and macOS.

What it discovers

Explorer passively finds and lists every stream and clock on the network, grouped by discovery mechanism: AVB (IEEE 1722 / Milan via AVDECC), AES67 (SAP) senders announced via SAP/SDP, and mDNS — which covers RAVENNA, Dante and Axia/Livewire in one unified list. Clock discovery covers PTPv1, PTPv2 and gPTP grandmasters. It also finds network devices advertising a web management interface (DHD, Digimedia, Axia and more) and opens them in one click.

Key capabilities

• Passive, zero-configuration discovery — Explorer never alters your network or joins a multicast group in a way that affects the sender.
• Pre-listen to any stream on any attached sound card, with selectable channel mapping for multichannel sources.
• Broadcast-grade metering: stereo PPM (IEC 60268-10), ITU-R BS.1770 LUFS, Lissajous goniometer, phase correlation and a scrolling peak-level history.
• Per-NIC filtering so you can focus on one network segment at a time; discovery still runs on all NICs simultaneously.
• 17 colour themes, dark and light mode, five languages.
• Built-in update channel — one click to download, verify (SHA-256) and install new releases.

Metering panel

While a stream is monitored, the right-hand rail shows three stacked views. The goniometer is a green-phosphor Lissajous plot of the stereo field — circular for mono-compatible content, a horizontal ellipse for out-of-phase content, a vertical line for identical L/R. The PPM tab shows stereo peak programme meters with IEC ballistics and a phase-correlation strip. The LUFS tab shows ITU-R BS.1770-4 momentary loudness with a running maximum. A scrolling level-history bar chart is pinned at the bottom, colour-coded from blue (≤ −18 dBFS) through green, orange and red (> −3 dBFS).

Clock & device discovery

The Clocks tab lists every PTP grandmaster on the network with full quality detail — priority values, clock class, accuracy, steps removed and time source for PTPv2; identity and quality fields for gPTP (requires Npcap on Windows or libpcap on macOS). Explorer only listens; it never participates in the BMCA election. The Devices tab lists devices advertising an HTTP/HTTPS management interface, filtered by a configurable MAC-OUI allow-list (Micromedia AG and dhd.audio are included by default).

System requirements

Appearance & updates

17 colour themes (all named after places on Mallorca, default Illetes) in dark and light mode, five UI languages (German, English, French, Italian, Spanish), and a built-in updater that downloads, SHA-256-verifies and installs new releases with one click — independent Windows and macOS release tracks.

Digimedia Surface turns your computer into a mixing control surface for any DHD audio core. Pick one of three connection modes per workspace and ride faders, ON and PFL on a familiar console strip. Drive several cores at once in separate tabs.

Three connection modes

Each surface uses exactly one mode, chosen from a drop-down on the connection bar.

dhd.audio API and Ember+ both control a DHD mixing core and render the same strip layout. MIDI MCU is the opposite role — the DAW controls Surface, which emulates a Mackie Control surface.

The mixer console

Each channel strip carries a source drop-down (pick which core fader the strip controls), a PFL / headphone button, a fader with a dB scale drawn on every strip, a stereo PPM level meter (dhd.audio mode only — Ember+ exposes no metering), and an ON button. Show 1–24 strips at once via the Faders slider; hold Shift and drag to reorder a strip, or click Reset Layout to restore the default source mapping.

MIDI MCU mode

In MIDI MCU mode, Surface emulates a Mackie Control surface that your DAW drives over RTP-MIDI. Each strip carries the fader plus four DAW-lit buttons — Rec, Solo, Mute and Select — with channel names, time-code and meters pushed live by the DAW. Up to 32 parallel MCU connections can run at once, one per sub-tab.

Multiple surfaces

Add as many surfaces as needed — mix dhd.audio, Ember+ and MCU surfaces freely in separate tabs. Each keeps its own host, mode, layout and connection state, remembered between sessions.

Resilient connection

The dhd.audio link is kept warm with a periodic keep-alive and reconnects automatically if the core drops or freezes. On disconnect the surface goes idle — faders fall to −∞, ON/PFL clear and meters empty — so nothing on screen reads stale; current positions and states are read back automatically on reconnect.

Appearance & updates

17 colour themes in dark and light mode, five UI languages. Surface checks for a newer release at startup and via the bottom-bar link; updates are SHA-256-verified before install, with independent Windows and macOS release tracks.

Digimedia Audioeditor is a professional audio editor with two operating modes: Singletrack for quick editing of a single audio file, and Multitrack for layered, multi-channel recording and mixing sessions. All processing runs locally — no audio is ever uploaded to a server.

Two editing modes

Singletrack fills the canvas with the full waveform of the loaded file — a stereo file shows L on top, R below, separated by a thin divider, with a permanent dB level ruler across the bottom that doubles as a real-time playback meter. Multitrack switches to a lane-based layout: each track occupies its own row with colour-coded clip lanes, and a dockable Mixer panel becomes available with one channel strip per track (Rec / Solo / Mute / Select, fader, peak meter) plus a Master strip.

Non-destructive editing

Unlimited Undo / Redo covers every edit and effect operation — nothing overwrites the original audio until you export. Cut, Copy, Paste, Paste Replace, Delete/Silence and Trim are available from the toolbar or a right-click context menu, alongside zero-crossing selection snapping to avoid clicks at edit points.

Professional effects chain

Every effect opens with a real-time preview and a preset dropdown. The chain covers:

• Gain & Fade — Gain, Fade In, Fade Out.
• EQ & tone shaping — parametric (Paragraphic) EQ, 10- and 20-band graphic EQ with genre presets, and an RNN-based voice noise reducer.
• Compression & limiting — a full-parameter compressor (threshold, knee, ratio, attack, release, makeup gain) with broadcast and mastering presets, a brick-wall hard limiter, and the Normalize tool (see below).
• Time & pitch — time-stretch speed change (0.2×–2.0×, pitch preserved) and combined speed/pitch change with cinematic automation profiles (Doppler, engine, car pass-by).
• Delay & reverb — a feedback delay and a reverb with presets from vocal booth to cathedral hall.
• Distortion & character — saturation/distortion, polarity invert, and reverse.
• Repair & cleanup — three-mode Audio Repair (click reduction, mains-hum reduction with auto-detect, splice smoothing) and Remove Silence.
• Seamless Loop Builder — crossfades a region's tail into its head with adjustable crossfade length and repeat count.

LUFS loudness normalization

The Normalize tool measures Integrated Loudness in LUFS per ITU-R BS.1770 — the method used by every major streaming platform and broadcaster — alongside simpler Peak and RMS modes. A peak-ceiling slider prevents true peaks from exceeding a safe level after adjustment.

For broadcast delivery, EBU R128 sets the reference: −23 LUFS integrated, −1 dBTP true peak, loudness range ≤ 18 LU — also the basis for the AES streaming recommendation and the usual professional podcast target (often relaxed to −16 LUFS for speech-only programmes).

Export formats

Local drafts

Save snapshots to the browser/app's local storage (IndexedDB) without leaving the editor — the whole file, a selection, or the clipboard. Drafts persist indefinitely, work fully offline, and each shows a thumbnail waveform, duration and time since creation.

Digimedia MIDI connects DHD (dhd.audio) consoles to iCON fader-surface controllers via MIDI — USB or RTP-MIDI over Ethernet. It runs as a background Windows service and is controlled entirely through a browser-based web interface, with no internet connection required.

Core integration

Add any number of DHD consoles as Cores, each on its own sub-tab. A core connects over the DHD WebSocket API for real-time sync of faders, meters and buttons. A colour-coded status indicator shows the connection at a glance: green (connected and licensed), blue (connected but unlicensed — data is blocked until a key is applied), amber (scanning) or red (disconnected).

iCON surface support

Supports the iCON P1-X series and other MCU-protocol-compatible surfaces over USB-MIDI (plug and play) or RTP-MIDI (Ethernet — configure the surface's network MIDI target to the host's IP on port 5004, with automatic fallback to 5030 if occupied). Up to two surfaces can run simultaneously, covering faders 1–8 on the first and 9–16 on the second.

Visual mapper

The Mapper is a drag-and-drop graph editor: core nodes on the left expose 1..8 and 9..16 output handles, surface nodes sit on the right. Drag from a labelled handle to a surface node to wire up bidirectional sync — fader moves on the console move the physical motors on the surface, and vice versa, synchronising within seconds. An Auto Layout button arranges all nodes automatically.

V-Pot channel browsing

The rotary V-Pot above each fader enables a browse mode that reaches every DHD channel even with only one surface connected: rotate to scroll through channels on the LCD, press to swap the selected channel into that fader strip. If the displaced channel belongs to the other surface's bank it's moved there automatically; with only one surface online it's placed in the first free slot instead. Browse mode times out after 5 seconds of inactivity.

Licensing

Digimedia MIDI requires a per-console license when used with DHD audio mixing consoles on Windows, tied to the DHD hardware serial number. Available with an RM1 purchase — contact your dhd.audio dealer for details. On macOS and Linux the service always runs in fully licensed mode.

Digimedia VAD is a Windows kernel-mode virtual audio driver and control service that turns a standard PC into a professional AES67 / RAVENNA audio-over-IP node. The driver appears in Windows as standard audio endpoints, so any application can play or record network audio with no special software — configured live from a built-in web control panel.

Architecture

Two parts run together on the host PC: a kernel driver (WDM/PortCls) that transmits and receives AES67 RTP packets — up to 8 render and 8 capture instances — and a control service hosting an HTTP/WebSocket server that configures the driver and announces active streams via SAP, mDNS and RTSP. The web control panel is served directly by the service, reachable from any browser at http://<host>:9156.

AES67 transmission & reception

Each of the up to 8 independent instances pairs a render endpoint (TX) with a capture endpoint (RX). TX streams are configured with multicast group, port, sample rate (48/96/192 kHz), packet time, DSCP QoS marking and payload type; the SAP and mDNS/RTSP advertisements update within a second of applying changes. RX streams discover network sources passively via SAP and mDNS, with drag-and-drop assignment from the discovery list. Both directions support SMPTE ST 2022-7 seamless redundancy over a secondary multicast group and NIC.

Dual-slave PTP with automatic failover

Each instance runs a software IEEE 1588-2008 (PTPv2) slave entirely in the Windows kernel. Two independent slaves (PTP 1 / PTP 2) can track grandmasters on separate NICs; a five-level priority cascade selects which one drives the media clock, with LOCKED always beating UNLOCKED — so if the primary NIC loses its grandmaster, an already-locked secondary slave takes over instantly with no clock jump.

Web control panel & API

The Dashboard gives a live overview of both PTP slaves and all RX/TX flow states. All functionality is also available over a WebSocket and REST API on port 9156, following the DHD Control API protocol envelope — including a DHD-compatible surface that lets existing DHD ecosystem tooling enumerate and route streams without modification. Remote access can be protected independently with a UI login password and an API bearer token; localhost connections are always exempt.