About Robbie Ferguson

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Aurisona Dev Update 2: Audio Profiles, Presets, and UI Beginnings

Today was another big day for backend development on Aurisona.

As tempting as it is, rather than jumping straight into Unreal Engine, I’ve concentrated my focused on building a solid foundation for user authentication, settings storage, and dynamic audio delivery. The goal is to have a fully functional system before layering in the visuals. That way, when the time comes to build the in-game experience, everything just works: user preferences load instantly, music streams dynamically, and the game is optimized from the get-go.

Today I laid the groundwork for sound profiles and user presets. Now players will be able to choose between preset audio environments like “Sleep Mode” or “Custom Mix” and the system will automatically apply compression, EQ, and separate volume levels for music, nature, and voice. Because I want to maintain a consistent experience across devices, settings save to the user’s account, and free users will have access to presets while premium users can additionally unlock full customization.

To support that, I created a new audio_presets table and added API endpoints to fetch available presets, apply them to a user, and save or retrieve custom settings. These settings are tied into the user’s account, which means they sync across devices and persist between sessions.

Once that was complete and thoroughly tested via the API, I shifted gears and finally started the Unreal Engine portion of the project.

I started by upgrading to Unreal Engine 5.6 and decided to begin with a Blueprint project, since it’s faster for prototyping UIs and interacting with APIs, which is especially important during this early phase… especially since I am eager to see the game take shape, and only have a limited amount of time off from my day job. I set up the project from scratch; an empty world, and began building the login screen. After wiring up the email and password fields in UE, I started building the login logic in Blueprints.

I was running short on time at the end of the day when I realized UE doesn’t natively support JSON in Blueprints. So I did a bit of quick research online and ended up adding the “JSON Blueprint Utilities” plugin to fix that. With that in place, I’ll be able to build the JSON payload from user input and prep the system for posting securely to the login endpoint.

The beginnings of a login Blueprint in Unreal Engine. Preparing to connect the game engine with the JSON API backend.

I’m eager to see the backend and frontend finally shake hands. Today brought me one step closer to that moment. Next, I’ll finish the HTTP request logic inside Unreal, parse the response, and save the user’s session tokens locally. Once that’s in place, the client will be able to load each user’s preferences and audio settings directly from the cloud.

The foundation is now fully in place: authentication, presets, user-specific profiles… and I’m nearly ready to start pulling that into the in-game experience.

Tonight, as I head to sleep, I’ll be listening to the first music library I’ve been working on for Aurisona. One last listen to get a sense of any anomalies or spikes in dynamics that draw a listener out of rest. It’s my way of curating, scrutinizing, and ultimately finalizing each musicscape. It’s my way of ensuring the music is effective, beautiful, and perfect for Aurisona.

Here’s to a very restful night’s sleep!

Aurisona Dev Update 1: Laying the Groundwork

It all starts with infrastructure. Phase 1 of Aurisona’s development is focused entirely on building the essential systems that will power the game.

I’ve been deep in server work, spinning up the first LAMP stack server with NGINX acting as a reverse proxy for Apache (which serves the main website) while also handling the game’s API endpoints. It’s a hybrid setup that balances efficiency with flexibility.

Most of my energy so far has gone into designing and building a fast, optimized database schema and secure API layer to match. I’m taking the time to do it right, because these are the systems that everything else depends on.

The first major system to take shape has been the user authentication and settings infrastructure. I’ve built a secure login system with long-lasting session tokens, complete with refresh tokens for persistent logins across devices. Behind the scenes, every user’s settings, from audio preferences to playback behavior, are stored in a clean, scalable way that will sync across platforms.

My years in radio broadcast experience are helping shape my decisions around the music layer of Aurisona. I’m designing the music delivery system with performance and immersion in mind. The game client never downloads full music libraries; instead, it requests individual tracks as needed, saving a ton of space on your mobile or VR hardware while still delivering a vast assortment of beautiful music to accompany the nature sounds in the game. The system remembers what songs you’ve already heard, spaces out repeats intelligently (dayparting), and ensures the playback feels organic with cross-fades and dynamic compression to ensure the volume remains consistent from song to song. I’m even preparing support for special audio modes (like “Sleep Mode” or “Study Mode”) with tailored EQ, compression, and volume settings. All this without requiring massive installs or storage space on the player’s device.

This is still just the groundwork, but it’s essential groundwork. The goal for Phase 1 is to have a stable and secure back-end capable of supporting a fully immersive, audio-first exploration game across desktop, mobile, and VR platforms.

Next steps include building the nature sound engine, real-time zone-aware audio loading, and integrating the player’s in-game location and biome data into the audio system. After that, I’ll shift toward visual prototyping… but only once the foundation is solid. That is a step I can’t wait for. To be able to bring my vision to life and share screenshots and videos is something I’m really excited for. I’ve been staring at a bash window far too long.

More updates to come as the game unfolds. For now, back to the console.

New Game Announcement: Aurisona

I’ve been secretly working on a game concept for nearly 3 years. It’s called Aurisona and I’m truly excited to announce that I’ve officially begun development.

What is Aurisona?

A Meditative Journey Through Sound and Nature

Aurisona is a peaceful, immersive exploration game where players walk a serene hiking path through beautifully rendered natural environments. From tranquil forests at dusk to babbling brooks, crackling campfires, and hidden clearings, every step is alive with the subtle, realistic sounds of nature—presented in high-fidelity, binaural spatial audio.

Whether experienced in VR, on a mobile device with headphones, or on PC, Aurisona is designed as an ambient experience you can truly feel. There’s no combat, and no objectives… just the freedom to wander, listen, breathe, and be present in the moment.

Aurisona is uniquely positioned to serve:

  • Players with anxiety, sensory needs, or burnout,
  • Users with limited mobility or chronic illness,
  • Residents in care facilities, hospitals, or assisted living,
  • Mindfulness practitioners and their patients,
  • Listeners who simply enjoy the peaceful sounds of nature while working, sleeping, or going about their daily tasks.

Aurisona’s Visual Experience

Aurisona is stunning. I’m working hard to make it as photorealistic as possible. Even the gameplay mechanics are designed from the ground up to be entirely organic. Having never played Aurisona before, any player with any technical skill level (or none at all) will be able to navigate with ease.

Aurisona’s Auditory Experience

When you go for a nature walk in the real world, you hear birds all around you, crickets, a gentle breeze in the leaves of tall trees. You don’t hear it the same as a traditional stereo audio recording: The sounds are all around you. That’s what truly sets Aurisona apart: Using fully-immersive binaural audio technology, the sounds of nature while you navigate Aurisona are everywhere, surrounding you. Close your eyes and you feel as if you’re there.

Bask in Nature

Hike the trail in Aurisona and find a spot along the path that offers the soundscape you are looking for. Rest there and enjoy the sounds of nature presented in fully-immersive 3D sound. Blank your device screen and listen as long as you like.

The Early Days

While sitting on my deck one gorgeous summer day in 2022, overlooking our forest, I began to contemplate how I wished I could enjoy that moment all year round. How I wished I could eliminate the sound of the speeding cars on the nearby thruway, and how I wanted to just live in that point in time for as long as possible, with the sounds of songbirds, cicadas and playful squirrels calming my stressed mind.

It was there and then that I began to consider how I might combine what I’ve learned about photorealistic game development while producing VR-based episodes of Category5 Technology TV, with my passion for recording binaural nature sounds.

I almost immediately started recording soundbites. The very first was a lone cricket who was making a lot of noise outside my front window, seemingly performing for me. He was sitting still on the stone patio at my front door, calling out all on his own. So I setup my recording rig (an H4N at that time) and recorded him for about 30 minutes.

That recording sat on my SD card for a year.

I planned the game mechanics, sketched out some ideas, and studied binaural audio techniques, Unreal Engine Blueprints related to spatial audio, and ultimately created the Category5 Matrix spoof as a testing ground, where, in the fly over that occurs after the camera transitions into the vintage TV set, you can hear my first-ever in-engine binaural soundscape. If you listen to that clip with headphones, you’ll notice a lot of elements surrounding you. That was an early test of the techniques I had been learning, to prepare me for the inevitable development of Aurisona.

On August 23, 2023, I imported the cricket audio file, sliced up the recording into dozens of individual chirps, and built the first test environment for Aurisona: A chair in virtual space, surrounded by crickets. The experience was incredible.

First binaural audio test for Aurisona. August 23, 2023.

Nearly two more years of planning, designing the game mechanics, layout and backend on paper, and here we are: June 11, 2025.

What’s in a Name

Aurisona is a constructed word derived from the Latin auris (meaning “ear”) and sonare (“to sound” or “resound”), suggesting a resonant, auditory experience intended for listening and immersion. Aurisona is a game by Robbie Ferguson (proprietor, Category5 TV Network), designed to transport players into richly detailed natural environments through the power of spatial audio. The game invites users to explore peaceful biomes, discover ambient soundscapes, and connect with others through shared moments of virtual nature.

Aurisona game development has begun!

Asian-Inspired Savory Peanut Noodles

This savory, umami-packing dish is a hit every time. It’s another of my recipes that’s easy to accommodate either meat eaters or vegetarians, and depending on your choice of noodle, it can even accommodate a vegan diet. As a meat-eater myself, I love the tofu version. I encourage you to give it a try as written, and then play around with it if you want to try something different.

This feeds my family of 5 with some leftovers. Simply adjust the amount of noodles and prepare as written to feed up to 8 people.

Ingredients

  • A batch of my vegan “egg” noodles, or two packages of fresh chow mein (may contain egg).
  • 2-3 tbsp Fresh Ginger Root, Peeled. If you like spicy, lean toward 3 tbsp. It doesn’t have to be exact.
  • 2 Large Garlic Cloves, Peeled and Basal Plate Removed (the woody part where the roots grow out of).
  • 1 Cup of your favorite Peanut Butter
  • 1/4 Cup Standard Soy Sauce (I like Kikkoman Naturally Brewed, which can be bought in bulk jugs)
  • 1/4 Cup Dark Soy Sauce
  • 1/2 Cup Water or Vegetable Broth
  • 6 tbsp Apple Cider Vinegar
  • 4 tbsp Toasted Sesame Oil
  • 2 tsp Sriraccha (I usually just aim to fill my tbsp measurer to approximately 3/4 full; saves dirtying an extra dish)
  • 4 tbsp Canola Oil (for frying)
  • 2-3 Packages of Extra Firm Tofu (or for a meat version, 2-3 Boneless Skinless Chicken Breasts, Cubed)
  • 4 Cups Roughly Chopped Cabbage (Any kind of green cabbage will do)
  • 2 Heads of Broccoli, Cut Into Bite-Sized Florets (no stem pieces)
  • 1 Can Baby Corn, Drained and Rinsed, Cut Into 1-Inch Segments
  • Optional: Green Onions, Thinly Sliced; Roasted Black Sesame Seeds

Directions

  • Put your tofu blocks in the freezer for 2 hours, and then place at room temperature for 30 minutes or so. This improves the texture of the tofu, making it much more chicken-like.
  • Cut the tofu into 1-inch cubes. Place evenly on a paper towel-lined cookie sheet. Cover in paper towel and place a second cookie sheet on top, with a pot or something on top to add a bit of gentle weight to press the tofu cubes. Let sit until needed.
  • Combine all sauce ingredients in a food processor (Ginger, Garlic, Peanut Butter, Soy Sauce, Water/Broth, Apple Cider Vinegar, Sesame Oil, Sriracha) No need to chop the garlic or ginger: The food processor will take care of it. Blend until smooth, approximately 30 seconds. Set aside.
  • Prepare a pot of water for cooking the noodles. It can simmer while you proceed with next steps.
  • In a large wok over medium-high heat, warm the canola oil, and then add your tofu, frying each side (approximately 12 minutes total). Replace the damp paper towel on the cookie sheet with dry paper towel, and return the fried tofu to the cookie sheet to rest.
  • Begin cooking the noodles.
  • In the same wok from the tofu, add the cabbage and broccoli and saute until soft and tender, approximately 8 minutes.
  • Reduce heat to medium and add the sauce, baby corn, and the fried tofu, mixing everything to coat well.
  • Once they’re ready, transfer the cooked noodles into the wok and mix to coat.
  • Serve; Garnish each portion with green onion and a dusting of roasted black sesame seeds.

Allergy Warning

This delicious, savory recipe contains peanuts, soy, sesame, gluten and corn. It may also contain eggs, tree nuts, and other allergens depending on your choice of ingredients. Vegetable broth may contain mustard.

Echoes in the Air: A Poem for Mic Tests

Echoes in the Air: A poem for Microphone Tests
By Robbie Ferguson, 2024.

To be read dynamically, with varying cadence, volume and dynamics, as driven by the words I’ve written.

Feel free to use my poem in your tests, projects and videos. Please simply credit me in whatever way is appropriate to the medium, such as a link in your video description, or mention in your credit roll.


I start with a whisper, soft as a breath,
A flicker, a heartbeat, as quiet as death.
Then rising, it gathers, a murmur, a tone,
Building like thunder, no longer alone.

Words shape from silence, each sound taking flight,
Soft in the shadows, then bright as the light.
I call out, then echo, like waves on the shore—
Louder, then softer, and softer once more.

The sound falls to stillness, then fades to the deep—
A voice, once awakened, now settling to sleep.

Episode Series Report: Assorted – September 17, 2024

Sho/ SeasonStatusSource
From Season 3Nearly here! Starts September 22, 2024.https://www.imdb.com/title/tt28246627/?ref_=tt_eps_nxt
Silo Season 2Coming in November, 2024.https://www.imdb.com/title/tt14688458/episodes/?season=2&ref_=tt_eps_sn_2
Snowpiercer Season 4It’s out! Final episode released September 17, 2024.https://www.rottentomatoes.com/tv/snowpiercer/s04/e10

Episode Series Report: Crime – September 10, 2024

Show / SeasonStatusSource
Anikka Season 3Renewed, but no release info yet.https://www.bbc.co.uk/programmes/b049fg98
The Bay Season 5Premieres September 18, 2024.https://www.imdb.com/title/tt8425404/episodes/?season=5
Bloodlands Season 3Will not be returning.https://www.belfasttelegraph.co.uk/sunday-life/news/bbcs-bloodlands-wont-return-for-series-three-says-star/a1293976426.html
Blue Lights Season 2It’s back! Released back in June 2024.https://www.imdb.com/title/tt27762874/
Bodyguard Season 2Shelved indefinitely even though it was apparently renewed. Maybe will be back one day?https://en.wikipedia.org/wiki/Bodyguard_(British_TV_series)
The Chelsea Detective Season 3Filmed, likely to release in 2025.https://tellyvisions.org/article/will-there-be-chelsea-detective-season-3-heres-what-know
Criminal Record Season 2Confirmed, but no release date yet. 2025?https://www.whattowatch.com/watching-guides/criminal-record-season-2
Dalgliesh Season 3Confirmed, no release date yet. Likely 2025.https://www.radiotimes.com/tv/drama/dalgliesh-season-3-release-date-channel-5/
The Fall Season 4“Not entirely put to bed” – could happen, one day. But not likely.https://variety.com/2024/tv/awards/gillian-anderson-scoop-journalism-the-fall-1236032641/
Happy Valley Season 4Very unlikely to happen… but star has considered it.https://www.radiotimes.com/tv/drama/happy-valley-sarah-lancashire-ntas-season-4-newsupdate/
Karen Pirie Season 2Filmed July 2024. Likely release in 2025.https://tellyvisions.org/article/karen-pirie-season-2-cast-plot-filming-news
Line of Duty Season 7No immediate plans for more.https://www.radiotimes.com/tv/drama/line-of-duty-martin-compston-season-7-plans-newsupdate/
Manhunt Season 3No word yet… unlikely?https://tellyvisions.org/article/will-there-be-manhunt-season-3-fans-are-still-hopeful
Payback Season 2Can’t find a thing.
Ridley Season 2Coming September 15, 2024.https://www.imdb.com/news/ni64812299/?ref_=nm_nwr_1
Shetland Season 9Filmed. Likely to drop either late 2024 or early 2025.https://www.imdb.com/news/ni64482035/
Slow Horses Season 4It’s here! Episode 1 dropped September 4, 2024.https://www.imdb.com/title/tt21223224/?ref_=tt_eps_rec
Strike Season 6Filmed. No release date yet.https://www.radiotimes.com/tv/drama/strike-season-6-filming-underway-newsupdate/
Trigger Point Season 2It’s out! Aired September 5, 2024.https://www.imdb.com/title/tt18347378/
Unforgotten Season 6Confirmed, but no release date yet.https://www.imdb.com/title/tt4192812/episodes/?season=6
Vera Season 14Appears to be confirmed, but no info.https://www.imdb.com/title/tt1693592/episodes/?season=14&ref_=ttep_ep_sn_nx

send_packet6: Operation not permitted

The Problem

My syslog shows:

dhclient[24931]: send_packet6: Operation not permitted
dhclient[24931]: dhc6: send_packet6() sent -1 of 56 bytes
dhclient[367]: XMT: Solicit on eth0, interval 122930ms.
dhclient[367]: send_packet6: Operation not permitted
dhclient[367]: dhc6: send_packet6() sent -1 of 56 bytes

The Cause

DHCP for IPv6 uses different ports than IPv4, so your IPTABLES / CSF firewall may need to have its rules adjusted if you start using IPv6.

The Solution

Set your firewall to allow UDP in/out for:
IPv4: 67,68
IPv6: 546,547

That’s it. The error is gone.

Robbie // The Bald Nerd

PINE64 has [nearly] finalized the PinePhone design

PinePhone design as of February 21, 2019

It has a headphone jack, USB-C with video output, data transfer, and 5V fast charge, and PINE64 is about 90% sure they’ve got the final design, with a few possible modifications still to come.

At Category5 TV, we’re really excited about the privacy features of the PinePhone, as discussed with Lukasz Erecinski during our recent interview. The ability to turn off the cameras, cellular data, WiFi, Bluetooth and speaker using hardware switches is definitely a sought after feature for the privacy-minded user. It comes as a bit of a surprise at first that these hardware privacy toggles will be hidden beneath the “easily removable” back cover. However, with a little more thought I begin to realize that this could be a really, really good thing. Albeit inconvenient for the impromptu Skype call with mom.

From a privacy perspective, it makes a lot of sense that the switch that re-enables your camera is hidden from accidental switching, or even from another person enabling it: Hand your child your phone to play a game and don’t worry about them accidentally triggering the camera. Similarly, it gives me great peace of mind knowing for sure that my LTE data plan isn’t being used in the background. My data minutes are a rare resource that we must conserve.

A headphone jack is very much a necessity. Personally, I listen to audio books and podcasts at night. I am not going to use Bluetooth headphones for that. I use a pillow speaker, which is ideal for nighttime listening. It also stands to be noted that the PinePhone, at a target price of just $150, is a budget phone: it is possible it will be used in markets where Bluetooth headphones (which cost significantly more than wired headphones) are not practical. At least having the headphone jack gives the budget, hard-wired option. It also means the PinePhone can be used to play music at events via loudspeaker. I know, it sounds silly, but I know businesses and restaurants who simply plug their phone into an amp to play music for the customers.

For the current mockup, PINE64 intends to put the headphone jack at the top of the phone. That’s exactly where I want it. However, some people argue it should be on the bottom. I suppose this is a personal preference thing. Back to my pillow speaker, for me, having it on the bottom would be inconvenient (my wall charger is on the far side where my pillow speaker plugs in on the opposite side). So, PINE64, being the community-centred company that they are, put it to a vote:

The speaker, at least for now, is on the back of the phone. I’m not particularly keen on that design features since it means the audio for the video I’m watching will be better heard by the person sitting across from me. But PINE64 says this may change in the final, final design.

The PinePhone will feature the typical volume rocker on the side of the phone, along with a lock button.

Here’s what we know so far about the upcoming PinePhone specs:

  • USB-C for data and charging, with HDMI Video Output (requires an adapter or special cable)
  • Bluetooth + WiFi
  • 4G LTE
  • Privacy (hardware) switches for BT/WiFi, LTE, cameras, speaker
  • eMMC module socket
  • mSD Slot
  • Gyro magnetic sensor
  • Light sensor
  • Volume, power, reset, home buttons
  • Audio aux
  • MiPi and TP interfaces
  • 2mpx and 5mpx front / back cameras
  • Small and compact size of (approx. 165x77mm)
  • 1440×720 IPS panel
  • SOPine module: Allwinner A64 with 2GB of LPDDR3 RAM
  • Price Target: $150

I’m really eager to start hearing of some manufacturers working on cases for the PinePhone. As of yet, I have not seen anything coming down the wire. But I’m really hoping we’ll see some attractive protective cases and screen protectors that will be suited to this new device.

I’ll continue to keep you updated as I learn more.

Here’s what PINE64 has to say on Twitter: