QUESTION · ARCHIVE

Have you heard anything about the new Zoom talkback feature in the API that allows you to have a comms solution?

ASKED BY · Unknown · 19 SEP 2026 · ▶ 00:13:33

THE PANEL'S ANSWER
John

The Zoom talkback is a last-mile comms solution; John has a standalone app called Zcoms that enables communication back to up to four people in the room, with eventual integration into Core Video Pro.

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From the transcript.

Machine-transcribed, so it may contain errors. Every timestamp opens the episode at that second.

13:32a lot of updates lately. And I noticed that they, some time ago, not that long ago, they added some new talkback feature. Do you know any, have you heard anything about this new talkback feature in the API that allows you to, is it supposed to be like a comms solution? Is that something that you're working on with Core Video? I think it is a comm solution, but it's more like a last mile type of thing.

13:54I do have a standalone app that can do it. It's called Zcoms. That's also on the Core Video website. You can download. It's fairly simple. It just joins a room, and then you're able to do the communication back to up to four people simultaneously or individually in the room. It will be built into Core Video Pro eventually. and there's like a version of it,

14:18a simplified version of it that's in the OBS app already. That's fantastic. Well, I appreciate the quick demo. That is amazing. I'm sure we've barely scratched the surface of it. I mean, there's zero reason now. I hope we spread the gospel when people find out about this app because, I mean, there's zero reason now for anybody to just screen scrape a Zoom meeting

14:39because this is going to look so much better. I'm sure the color quality and the frame rate and everything, your whole production is going to look a lot better when you start doing the ISO feeds and stuff like that. So, yeah, I hope everyone checks it out. The video, just want to make sure I get the domain name right. It's corevideo.io. Is that correct?

14:59That's correct. All right, everyone, go download it now and check it out. Mac OS and Windows. All right, Courtney, let's go to the next question. All right, very cool. um all right this one comes in from paul valhus in austin texas paul says what's a low budget underwater video and audio setup and high budget are you taking your podcast to the bottom of the

15:23pool uh paul i'm not sure what you want here but go ahead corny and take a crack at this you know nobody else raised their hands i did a little bit of research you know for underwater It depends on whether you're talking about just recording something and, you know, pulling it out of the underwater environment and then playing it back later. Or if you're trying to do live streaming, that could be much more difficult because then you've got to get wires out of the camera and audio.

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MENTIONED IN THE ANSWER
Zoom→Zcoms→Core Video Pro→
ALSO IN THIS EPISODE

28 more questions
from CoreVideo Pro Zoom App Uses GPU-Native Encoding | Vertical.

The whole episode →
▶ 00:00:03I hear you've been working on some production related tools. Do you have anything you can share with the class this morning?▶ 00:03:28Is this app living inside of OBS, or is this accessible within it, or is it outside?▶ 00:04:19How do you get Zoom sources into OBS, and where does OBS come into play with this app?▶ 00:05:02Is that a performance meter of some kind in the buttons at the bottom of the toolbar?▶ 00:05:48Do you have individual telemetry for the participants that are joining, like can you see their frame rate and the resolution that they're sending when they've joined?▶ 00:06:14If you've got someone that's joined the meeting and their audio is fluctuating a lot, if you as the engineer want to remotely turn their audio up or down, is there any way to do that on a per-user basis?▶ 00:08:06Are you charging for these apps, or is Core Video Pro still in alpha?▶ 00:09:15What can you speak to the differences in terms of the video performance, the engine, the graphic subsystems like on a Windows PC versus Mac—are you running OpenGL on a GPU? Is it GPU driven on the Mac as well?▶ 00:10:48Can you live stream from this app? What about recording? Where does it go from there?▶ 00:11:37How does the routing work for ISO recording and output options?▶ 00:12:25What record options and settings are available for per-camera bit rate control?▶ 00:13:13Are there plans for remote control surfaces like iPad apps or web interfaces?▶ 00:15:24What's a low budget and high budget underwater video and audio setup?▶ 00:18:24Can you recommend additional resources for underwater video and audio?▶ 00:20:19What's your AI project of the week—anything to share?▶ 00:22:57How do you start a big project like Show Hub—do you write a spec doc outside of the AI tool or upload it as a product requirements doc?▶ 00:26:32What's your current AI project related to searching and indexing Office Hours content?▶ 00:30:07How much does a talker's distance to the wall behind them matter compared to the wall behind the mic? Which side would you treat first?▶ 00:32:41What's everyone paying for AI plans?▶ 00:34:57What's the relationship between Cursor and X/Elon's companies, and what models does Cursor offer?▶ 00:37:53Can you describe your personal and work AI spending and platforms?▶ 00:39:30How do you think about AI plan costs relative to the value and time savings they provide?▶ 00:40:50Can you describe your experience building production tools with AI using MCP and cloud instances?▶ 00:42:16How has AI enabled rapid clip generation and highlight creation for Office Hours content?▶ 00:52:52The iPhone 18 Pro has variable aperture—what can't the iPhone still do that Apple needs to add next?▶ 00:53:15What is the optical zoom and sensor size on the iPhone 18 Pro, and how much does computational photography still play a role?▶ 00:56:04Did Samsung have a phone camera with editing capability years ago, and how does that compare to iPhone features?▶ 00:57:45What role did the Newton's patents play in iPhone development and Apple's survival?