Nero Deck
Free for every EUPHONIA owner

You have a EUPHONIA?
Then join the party.

Two decks for the EUPHONIA, on a Raspberry Pi 5.

An SD image for a Raspberry Pi 5 + Screen. Flash it, plug in and bring digital magic to the beauty of vinyl and rotary mixing!

Serato CV02 timecode Keylock + SYNC 96 kHz / 24-bit REC Bluetooth in + out
The deck · 11.26″ ultrawide touch screen Recorded on a Pi 5
Screen recording of the deck, with the sound it played · music: demo tracks made for this video · tap the video for full screen
01
Setup

The whole setup is two cables.

One cable powers the deck. The other runs from the deck to the USB-C port on the EUPHONIA, and it carries all four mixer channels in both directions, plus the master for recording. There's no laptop or audio interface in between.

Selector on PC

Set a channel's input selector to PC and that channel plays the Nero Deck, in DVS mode with a control record or in CDJ mode. The timecode from the turntable reaches the deck by itself, so there's nothing to set up on the mixer.

Back to PHONO

Set it back to PHONO and the turntable plays straight through the mixer as usual. Put a normal record on and play it like you always do.

Bluetooth on any channel

Pair a phone in the deck's settings and send it to CH1, CH2, CH3 or CH4.

Deck 1 and deck 2 start on CH1 and CH2. You can move either one to another channel in settings.
On the image

What it does

01

Two decks, DVS or CDJ

Put a Serato CV02 control record on a turntable and the deck follows it through the EUPHONIA's phono input. Needle drops, scratching and backspins work the way you'd expect. If you don't want a record on one of the decks, switch it to CDJ mode and use PLAY, CUE and SYNC on the screen.

timecodeSerato CV02
modesDVS · CDJ
per deckone mixer channel
02

Your music

Browse your Diggy collection (your own records, digitised with getdiggy.app) or any USB stick. Every track shows its key and BPM, and the ♪ MATCH button hides tracks that won't mix with what's on the other deck.

sourcesDiggy · USB
keysCamelot
match♪ one tap
03

Keylock, SYNC and loops

Keylock keeps the key steady when you change the tempo, and you can switch it on or off in the middle of a track without the beat moving. SYNC matches a CDJ-mode deck to the tempo and beat of the other deck. Loops of 4, 8 or 16 beats snap to the beat grid. WAVES shows the waveforms of both decks one above the other, so you can see if the beats line up. If a beat grid is off, you fix it once and the deck remembers.

keylockstandard · HQ
synctempo + beat
loops4 · 8 · 16
04

Recording

REC records the EUPHONIA's master output over the same USB cable, at 96 kHz / 24-bit. The deck writes a tracklist and a CUE sheet while you play. When you're done, copy the set to a USB stick at the deck or download it to your phone.

quality96 kHz / 24-bit
with ittracklist + CUE
fileWAV
05

Live stream link

The first time the deck goes online it gets its own public address, like yourdeck.nerodeck.com (that one is an example you can open). Press GO LIVE and anyone with the link can listen in a browser. It works on a venue's guest Wi-Fi, and you don't have to change any router settings.

linkyourdeck.nerodeck.com
setupautomatic
routerno changes
06

Phone remote

Scan the QR code on the deck's screen with a phone or laptop on the same Wi-Fi and you get a remote. From there you can load tracks, set trim, EQ, filter and faders, and get to your recordings.

remoteany browser
joinscan the QR
07

Bluetooth in and out

The EUPHONIA doesn't have Bluetooth, so the deck adds it. Pair a phone and play it into any channel from CH1 to CH4, for a request or a voice note. You can also send the master to a Bluetooth speaker or headphones. Both pair from the deck's settings.

inphone → CH1–4
outmaster → speaker
02
The audience page

What your listeners see

The stream plays on your deck's own web page, in any browser. Listeners don't need an app or an account.

Tap to listen to the master, live
Now playing and tonight's tracklist
Booth cam and chat with the DJ
Listeners can share their cam back to your booth
https://yourdeck.nerodeck.com Open the example page and listen
The listener page: now playing, a level meter, chat and tonight's tracklist
Shopping list

What you need

Raspberry Pi 5 4 GB or more
~ $110
GeeekPi 11.26″ touch screen 1920×440 ultrawide, fits in the faceplate
~ $90
32 GB A2 microSD card the image goes on this
~ $10
Pi 27 W power adapter the official USB-C one (cable 1)
~ $12
USB cable USB-A to USB-C, from the Pi to the EUPHONIA (cable 2)
~ $10
USB webcam optional, for the booth cam on the stream
~ $30
AlphaTheta EUPHONIA the mixer this is made for
Everything but the mixer
~ $230
03
Already configured

Set up for the EUPHONIA already

It took months of trial and error to get a Pi working properly with the EUPHONIA. All of that is on the image, so you don't have to do it yourself.

Sound to and from the EUPHONIA over USBworks
The mixer, found when you plug it inautomatic
Switch on the Pi and the decks startno login
Serato CV02 control recordsready to play
Your public stream linkautomatic
FREE
Free · EUPHONIA only

It's free

No price and no account. Email us about your setup and we'll get you a copy of the image. Write it to a microSD card, boot the Pi and plug in the EUPHONIA. That takes about ten minutes.

Get it free email us about 10 minutes to set up
free updates for the EUPHONIA's lifetime

Made for the EUPHONIA

Nero Deck is written for the EUPHONIA: its USB audio, its phono stages and its four channels. It doesn't support other mixers. If you're on a DJM, we can try. Contact us!

AlphaTheta EUPHONIA
Free for every EUPHONIA owner

You have a EUPHONIA?
Then join the party.

Send us a line. Tell us what you play and where, and we'll get Nero Deck onto your Pi.

Nero Deck · free · for the AlphaTheta EUPHONIA