Professional Background
Over a decade as a sound director and audio engineer, supporting artists and events throughout Germany. Based in Cologne, I design systems and lead teams that make artists feel safe and comfortable on stage.
Sound Direction That Creates Trust
Live sound engineering · Podcast production · Digital tools for audio pros
· Concert Sound · Podcast Production · Song Mixing · Live Recording · Web Design · AI Consulting ·
Trusted by musicians and creators across Germany
10+ Years Experience
DiGiCo · Yamaha · Allen & Heath ·
Midas
Physical + Digital Products
Experience That Delivers Results
Calm authority. Warm expertise. Based in Cologne.
Philosophy
Sound is trust. My job is to create a space where artists can focus on expression, not logistics—calm communication, reliable preparation, and empathetic direction.
Technical Expertise
$ own-gear: DiGiCo S21 · 32-ch Stagebox · Radial DIs · sE Mics $ consoles: Yamaha CL/QL · A&H SQ · Midas X32/M32 $ wireless: Sennheiser EW G3/G4 · Shure QLXD · ULX-D $ tools: Reaper · Ableton Live · Dante · Live Professor · OSM · Loopback $ roles: FOH · Monitor · System-Design · RF-Coordination
Comprehensive Audio & Digital Solutions
Audio Engineering
Concert Sound Direction
From advance to encore - system planning, stage management, and FOH/monitor workflows that keep artists confident.
Podcast Production
Editorial guidance, clean capture, and post-production that supports your story without artifacts.
Song Mixing & Production
Tasteful mixes that translate - musical decisions, modern tools, and honest revisions.
Live Recording
Discreet multi-track capture and backups designed for minimal disruption and maximum safety.
Digital Services
Web Design
Fast, accessible websites for artists and events - built with clarity and maintainability in mind.
SEO Optimization
Structure, metadata, and content strategy - so your audience actually finds you.
AI Implementation
Workflows and tools that save time - transcription, edits, asset management with auditability.
Digital Productivity
Templates, automations, and training - so your creative time stays creative.
— Browser Tools for Audio Engineers
A Platform of Tools You Can Open in a Tab
Browser-native apps for FOH, monitors, and studio — no install, no app store. Free tools work the moment you sign up; premium tools unlock with a one-time Gumroad key.
BPM Forge
Tap a beat to detect tempo, with built-in metronome (custom click sounds), instrument tuner, setlist manager, and delay calculator. Built for FOH engineers and music directors.
tempo
tuner
setlists
Learn more
FreqSense
Wireless frequency coordination for DE / UK / US / EU regions. Visualises TV-channel occupancy, finds safe wireless-mic windows, and integrates an SDR-style spectrum view.
wireless
DE/UK/US/EU
spectrum
Learn more
PitchSense
Hz ↔ note converter with cents meter, harmonic series, audible reference tones, and a full equal-temperament reference table (C0–B8). Selectable A4 tuning.
pitch
cents
ref tones
Learn more
Show Clock
€49 one-time
Full-screen stage timer for FoH and backstage use. Wall-clock / count-up / countdown modes, per-slot programs, offset controls, Wake Lock, CSV / JSON / iCal import-export, and a 3 s realtime share link your crew can open on any phone.
timer
3 s share
PWA
Learn more
RoomSense
Calibrated acoustic reference suite for live sound — room modes & RT60, SPL & hearing-safety, LUFS loudness, EQ & delay alignment, and psychoacoustics. Venue profiles, A5 print, ten languages. Runs on-device.
venue
SPL/LUFS
profiles
Learn more
ClickSmith
Upload a song, set the tempo and offset, choose a click sound, and export a stereo WAV with the song on Left and the click on Right — ready for in-ear monitoring. Browser-only; the file never leaves your machine.
click track
tap tempo
L/R WAV
Learn more
SetlistForge
€29 one-time
Build and share setlists with timing and notes. Export performed-songs reports for GEMA and other performance-rights agencies.
setlist
timing
GEMA export
Learn more
SubPress
Zero-latency low-band compressor for tight, controlled low end — VST3 / AU for macOS & Windows. A desktop DAW plugin, bought on Gumroad.
VST3 / AU
zero latency
mono low
Learn more
Spektra (SDR Plugin)
€49 one-time
Scan the UHF spectrum (470–700 MHz) with an RTL-SDR dongle and find free frequency windows for wireless mics and IEMs. A local desktop app — purchased + licensed here, runs on your machine.
SDR
RF scan
local app
Learn more
SoundSense
€49 one-time
Browser-based audio ear-training for engineers and producers. Identify EQ, delay, panning, level, compression and a dozen more processing types by ear on real instrument stems — with tolerance-based scoring, per-module mastery tracking, streaks, ranks, and a reference library.
ear training
real stems
ranks
Learn more
LightSense
Browser-based eye-training for lighting engineers and designers — the visual counterpart to SoundSense. Train your eye to read colour (hue & temperature), intensity, beam position, and movement on real fixtures, with tolerance-based scoring, per-module mastery tracking, streaks, ranks, and a reference library.
lighting
colour
training
Stage Plot Generator
€49 one-time
Canvas editor for stage plots: place backline, mics, monitors, risers and lighting fixtures, and keep the input list, monitor mix matrix, DMX patch and personnel list in the same document. Stage dimensions, venue profiles, templates, alignment tools and keyboard shortcuts; exports as PDF, PNG, patch-sheet CSV or a .stageplot file.
stage plot
input list
DMX
Learn more
PowerSense
Power & cabling calculator for audio and lighting rigs — loads per phase, cable gauge & length checks, and distro planning. Know your rig fits the venue power before load-in. Runs in the browser.
power
per phase
cables
Learn more
RiggingSense
Interactive rigging-statics trainer for live production — drag loads across beams and trusses, watch hoist reactions and bridle-leg tensions solve step by step with your own numbers, and learn what WLL and safety factors really mean. A learning tool, not an engineering calculation.
rigging
bridles
training
Learn more
RiderSmith
€29 one-time
Assemble professional tech riders from what your tools already know — stage plot & input list, wireless plan, set timing and power plan — plus multi-language boilerplate for PA, monitoring, backline and hospitality. Versioned per venue and date, exported as a clean PDF the venue takes seriously.
tech rider
imports
PDF
Learn more
PatchSmith
Patch sheets that program the console. Build the channel list once — with DCA layout, stereo pairs enforced odd→even, and the output patch — then print a clean A4 sheet for the crew and load the same show skeleton into an X32/M32 as a scene file: channels named and colored, pairs linked, buses and matrices labeled.
patch sheet
X32 / M32
DCAs
7 free tools, 6 premium — all in your browser. From Squaresmile Media, for audio engineers.
Open the platform →
Open the platform →
— Products & Downloads
Tools Built for the Stage
Practical tools made by a working sound engineer - not a marketer. Designed to save you time when time is the one thing you don't have.
Audio Plugin
SubPress
High-End Low-Band Dynamic Processor
€19
A specialized compressor that processes only your low frequencies — split at a variable 40–400 Hz crossover, compress the low band, then recombine with phase precision. Tube-style high-band saturation and a Mono Low mode for club systems and vinyl. Zero latency, VST3/AU.
VST3 / AUMultibandMono LowInstant download
View SubPress →
Physical Edition
Check: One, Two
The Audio Engineer's Field Notebook
From €14,90
A purpose-built notebook for live sound engineers. Input lists, stage plots, monitor mixes, troubleshooting pages — everything you need, nothing you don't.
Lays flatQuality paperTouring-ready
Buy on Amazon →
Digital Edition
Check: One, Two
Printable PDF + Digital Planner
€7,00
Print as many pages as you need, or use with GoodNotes, Notability, or any PDF app on your tablet. Instant download after purchase.
Instant downloadPrint
unlimitedTablet-ready
Download on Gumroad →
All products are made from real field experience — tested at live shows, not designed in a vacuum.
Visit the full shop at squaresmile.gumroad.com →
— Listen
Audio Samples
Selected sound examples embedded from Spotify, SoundCloud, or played locally. Each sample includes a short context.
Spotify
Live Mix - Ralph de Jongh
A front-of-house board mix captured during a mid-size club show. Focus: vocal
clarity and balanced low end.
Spotify
Podcast - Breaking the Frame
Photography and culture podcast hosted by Miss Souls — mixed, mastered, and
audio-branded from the ground up.
— Selected Work
Things I've Built
A mix of product design, custom tooling, and web work - each one solving a real problem for real people.
Product Design · Self-published
Check: One, Two — The Notebook
Conceived, designed, and published a physical and digital notebook for live sound engineers. From the page templates to the cover design - built entirely from my own on-the-job experience.
ProductPrint
DesignGumroadAmazon
View on Gumroad →
Eventkalender
Tooling · Airtable · Built for Freelancers
Freelance OS
One template. Everything you need to run your freelance life like a professional. Freelance OS tracks your confirmed and tentative bookings side by side, gives you a live overview of your income, and makes your availability instantly clear - to you and to anyone who asks. Built by a working freelancer for the reality of freelance work: last-minute bookings, shifting options, and the constant mental overhead of knowing where you stand. Import it once. Stop guessing.
AirtableWorkflow
DesignAutomationSaaS
Available as a managed setup for freelance crews and event companies. Enquire via contact.
Get in touch to learn more →Eventkalender
Tooling · Airtable · Built for Venues
Event Desk
Stop managing your events in Excel spreadsheets and scattered WhatsApp threads. Eventkalender Pro is a ready-to-use Airtable template built from real experience running multi-venue event operations in Cologne. Import it in minutes, add your team, and have a professional booking calendar running the same day. Track every event, every technician, every status - all in one place, always up to date.
AirtableWorkflow
DesignAutomationSaaS
Available as a managed setup for freelance crews and event companies. Enquire via contact.
Get in touch to learn more →
Web Design · DNS · Email Setup
JP Touring GmbH
Web and digital setup for a Cologne-based live entertainment and tour production company. JP Touring works with artists including Bausa, reezy, and Tream on full-scale tour productions across Germany.
Web DesignTour ProductionCologneLive Entertainment
Visit jptouring.de →
Podcast Production · Audio Logo · Loudness
Mastering
Breaking the Frame
Breaking The Frame is a Cologne-based photography and culture podcast hosted by Miss Souls - a queer female voice covering a community that rarely gets to speak for itself. Behind the scenes, the show runs on a production setup I helped build from the ground up: mic recommendations, file system, edit workflow, and a mix process designed for the reality of indie podcasting. That means cleaning up guest audio from WhatsApp and Zoom, leveling every voice to a consistent dynamic, and mastering to platform loudness targets so listeners never reach for the volume knob. The audio logo — the sound identity of the show — was composed and produced entirely in-house.
MixingSound DesignPodcastStreaming
Visit Breaking The Frame →
Have a project that needs building? Let's talk.
Get in touch →
Get in touch →
Made by a working sound engineer — not a marketer.Check: One, Two
The Audio Engineer's Field Notebook
Built for the stage. Designed for your workflow. Input lists, stage plots, monitor mixes—and pages that lay flat when you're under pressure.
Input lists & stage plots- Monitor mix pages
- Troubleshooting notes
- Lays flat — designed for busy setups
- Physical + Digital editions available
📖 Buy Physical on Amazon
⬇ Download Digital on Gumroad
Let's Create Something Exceptional Together
For urgent inquiries, include your phone number and preferred contact time.
