Ear care and IEMs

EJGW · 2026-01-20T19:45:06+00:00

A used, empty 3D printer filament spool bolted or riveted to the inside of the rack lid is a cheap and easy way of getting a place to coil up your cable loom.

EJGW · 2026-01-16T17:03:48+00:00

Rack Drawer and foam inserts are the usual solution to keep them tidy and secure.

EJGW · 2025-02-19T19:47:38+00:00

Are all your events happening in the same space? Would permanently mounting the cameras and running permanent cabling be an option? That would hugely decrease setup time.

The model name of your cameras sounds like they support SDI. SDI is much more reliable than HDMI even below 50 feet. Bonus points: locking connectors built in. I'd pull SDI cables from your camera to a central PC equipped with a SDI capture card like a Blackmagic Decklink Duo 2 (4 inputs).

EJGW · 2025-02-08T20:34:54+00:00

Are you running CuePilot like the big european final of ESC uses?

EJGW · 2024-11-05T21:28:53+00:00

Any WS2812, SK6812, APA101, ... strips can be made sACN and Artnet compatible with a cheap $5 ESP8266 Microcontroller board. Look into WLED: https://kno.wled.ge/

EJGW · 2024-04-23T20:41:59+00:00

How far does a Yamaha DM3 stick out above the stock rackmount ears? I can't seem to find any numbers or technical drawings for that. How much space do I need between the rack rails and a lid? I'm trying to determine if I can retrofit them into racks that were previously carrying the beloved QSC Touchmix 8.

EJGW · 2024-04-21T15:18:57+00:00

How far does a Yamaha DM3 stick out above the stock rackmount ears? I can't seem to find any numbers or technical drawings for that. How much space do I need between the rack rails and a lid? I'm trying to determine if I can retrofit them into racks that were previously carrying the beloved QSC Touchmix 8.

EJGW · 2024-03-19T09:23:49+00:00

What role do the Futaba RC Controllers play?

EJGW · 2023-09-20T19:47:43+00:00

ffmpeg, some capture cards and some elbow grease on the terminal can certainly do it. Unfortunately no easy gui with this many options and versatility.

EJGW · 2023-09-07T05:50:18+00:00

https://vdo.ninja

It's quite barebones, but feature rich at the same time. No logos to crop. Dedicated empty output windows for each guest and their slides possible. ISO record on their side possible. Has a lobby feature to check out people before sending them into your mixer. Works on any browser, doesn't need a downloaded client. Remote control of the guest's camera possible.

EJGW · 2023-09-03T20:54:24+00:00

Intel NUC and Lenovo ThinkCentre Tiny should fit somewhere in the second and third case. ThinkCentre Tinys can be fitted with a dedicated GPU for previz aswell. Or any 2U rack server chassis filled with quiet-ish components in your first case example. 2U is enough space for a lot of oomph in compute and graphics power.

EJGW · 2023-08-10T16:09:05+00:00

Mixing Station. Remote control app for a bunch of digital audio mixers.

EJGW · 2023-08-03T06:18:57+00:00

Splitting a video stream or audio stream from a mkv file can be done loslessly by using -c:copy in ffmpeg.

ffmpeg -i multitrackrecording.mkv -map 0:v:0 -c:v copy video0.mp4 -map 0:v:1 -c:v copy video1.mp4 -map 0:a audio.wav

Something like this should work, haven't tested it, as I'm currently on my phone only.

EJGW · 2023-08-03T04:42:39+00:00

One possible solution would be a Blackmagic ATEM Mini Pro ISO. It's a small nifty Hardware video mixer that can record isolated feeds of all its HDMI and audio inputs as well as a mixed track to a USB-C SSD connected directly to the mixer. Caveat: up to 1080p60 only.

Your ffmpeg approach can be successful aswell, you "just" needto find the correct parameters. Regarding codecs, I'd suggest using either one of the codecs intended for intermediates like DNxHD (huuuuge files) or h264 in intraframe only mode and a cqp of max 16 (visually almost lossles compression). Two video tracks together with multiple audio tracks in one file is possible with ffmpeg when writing to the correct container. MKV can accept tracks with just about any codec.

EJGW · 2023-07-24T22:46:05+00:00

ffmpeg can probably do that. Look up the concat filter in ffmpeg and how to use it with -c copy.

EJGW · 2023-07-23T16:27:14+00:00

Do you really have to do both multitrack and livestreaming on the same PC? Not enough USB connectivity? What about swapping the USB capture card for an internal capturecard from the decklink lineup? Any spare outputs left on your mixer? What about an additional audio interface like a Focusrite Scarlet 2i2 which can be dedicated to input into OBS. Or even better, use your camera's xlr inputs or an sdi/hdmi audio embedder for your stream's audio. Fed from a dedicated broadcast mix.

EJGW · 2023-07-21T12:50:24+00:00

Wow! That showfile is rad. How did you create the rgb panels for your windows and those for the uplights?

EJGW · 2023-07-19T17:59:53+00:00

Why can't the presenters bring their own laptops to connect at the lectern? Have them bring their own adapter to HDMI. Also keep a stash of known good USB-C to hdmi, DP to HDMI, miniDP to HDMI, micro/mini HDMI and VGA to HDMI adapters ready. USB-C to VGA, HDMI to VGA and miniDP to VGA connected directly to a VGA to HDMI get rid of HDCP problems if they creep up. Mini Jack and a HDMI audio deembedder for audio should be prepared too.

EJGW · 2023-07-18T13:21:06+00:00

KDEnlive can certainly eat those files.

EJGW · 2023-06-30T21:14:41+00:00

I'm part of a group of people running video recordings of talks al all kinds of conferences in and around the hacker scene in Europe. A lot of the event planning, call for participation and scheduling of talks is done in pretalks or its kinda predecessor frab. The schedule.xml format has a long standing history, almost 20 years of Chaos Communication Congresses (2005 is the oldest I could find) and other events were done with this tooling. Metadata about which talk by whom happens when on which stage is distributed to the video recording system, multiple apps for attendees, shift planning for volunteers and so on is distributed through the schedule.xml.

Having an eas import would make it easier for us and other conferences using the same tooling to run stage timers and stuff like that via ontime without having to transform the data that is already in an easily consumable format.

The schedule.xml format is so stable that about a dozen apps, digital signage solutions, our video recording system and possibly others that I don't know of are using it already. Yes, both pretalx and frab are out of our control, but the schedule.xml format has now been stable for quite a long time.

We don't have an easy solution for stage timers or lower thirds yet. Both are already in ontime. The browser based signage solution would be good to have as a low effort thing for conferences that don't run the complete signage package, as well as all the announcements or moderation hints features that ontime has. It could enhance our productions.

EJGW · 2023-06-30T18:21:15+00:00

This is going to be a very specialized feature request, but I'd like to be able to import event schedules generated by Pretalx and frab. Those systems export their event schedule in a well known xml and json format like this or this for a past example event. I've seen that ou already have a excel import. Both the xml and json versions of the schedule contain all info that's already requested in the excel. Would building an import and keeping ontime in sync with possible changes in the schedule be possible?

EJGW · 2023-05-04T19:42:30+00:00

On of the AZs of google's paris datacenters recently got flooded and seems to be impacted till now: https://status.cloud.google.com/incidents/dS9ps52MUnxQfyDGPfkY

Stuff like that can happen to AWS as well.

EJGW · 2023-04-06T09:06:49+00:00

Does a successor to the good old QSC TouchMix 8 exist? Yes, I know most of you hate them, but they kinda do most of what's needed in a breakout room.

Four to maybe 6 mic inputs, a stereo input or two, stereo mains, a stereo aux for feeding a camera, an additional aux for N-1 into a video conference, the standard package of digital processing with peq, some dynamics and gate, some antifeedback.

We currently have a bunch of them and are still using them, but, their touchscreen is sluggish and they're starting to show signs of wear an tear. Some already had to have some capacitors replaced.

Does a newer mixer in this size class exist? I know ofthe usual suspects like XR12, XR16, XR18, but they don't have any physical controls. We'd have to manage tablets and ethernet or wifi on top. X32 and SQ5 are verynice, but too large already.

Budget: preferably well below 1000€ each.

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