WEBVTT 00:00.000 --> 00:09.640 Okay, let's start the next presentation. 00:09.640 --> 00:16.760 Our next speaker is Ari Carmody and he will, they will talk about self hosting a student 00:16.760 --> 00:17.760 radio station. 00:17.760 --> 00:18.760 Welcome. 00:18.760 --> 00:19.760 Hello. 00:19.760 --> 00:20.760 Hello. 00:20.760 --> 00:21.760 Hello. 00:21.760 --> 00:22.760 Yeah. 00:22.760 --> 00:24.760 We're making a start. 00:24.760 --> 00:30.760 Oh, there we go. 00:30.760 --> 00:31.760 Hello. 00:31.760 --> 00:36.760 There's a lot more people here than I expected. 00:36.760 --> 00:38.760 I'm going to talk about self hosting a student radio station. 00:38.760 --> 00:43.760 I'm going to quickly clarify English is my first language, but I'm from rural Ireland, 00:43.760 --> 00:46.760 so that's actually not true. 00:47.760 --> 00:51.760 I'm just going to point out, in Ireland, university and college are interchangeable, so I will be using both of them. 00:51.760 --> 00:58.760 I know that's not the same system in the UK, and I don't know how student organizations work at the rest of Europe, but we call them societies. 00:58.760 --> 01:01.760 They're just clubs, but we don't do sports. 01:01.760 --> 01:02.760 And I want to have time for class. 01:02.760 --> 01:04.760 I may have time for questions. 01:04.760 --> 01:05.760 Let's find out. 01:05.760 --> 01:14.760 Radio Sock was originally based in Tallah, which is in the suburbs of Dublin, back when that college was IT Tallah. 01:15.760 --> 01:25.760 They actually broadcast on FM on broadcast radio, and they won a huge amount of awards over many, many years, and then they died over COVID. 01:25.760 --> 01:28.760 And then they didn't get the radio license back, so they don't do anything anymore. 01:28.760 --> 01:39.760 Since then, a bunch of smaller colleges in Dublin merged to form TU Dublin, which is the university that I go to, and we've since reformed the radio society, now in the city center broadcasting on the internet. 01:39.760 --> 01:42.760 We are currently slightly mid. 01:43.760 --> 01:46.760 The hardware we've got is some small stuff. 01:46.760 --> 01:48.760 We have a roadcaster, which is not in this picture. 01:48.760 --> 01:51.760 It's a little mixer, and just lets us mix our audio. 01:51.760 --> 01:56.760 We have some road mics, cheap DJ decks that I got in trouble for buying, because they were too bad. 01:56.760 --> 02:00.760 The manager of our society's office is a professional DJ. 02:00.760 --> 02:02.760 And that's basically it. 02:02.760 --> 02:04.760 That's all you really need to run a radio station. 02:04.760 --> 02:10.760 You just need a mixer, which you can do in software, and a DJ deck, which you can also do in software. 02:11.760 --> 02:13.760 And we're going to look at the software. 02:13.760 --> 02:16.760 Here is our creepy tunnel where the server is. 02:16.760 --> 02:22.760 If you saw Ruan's talk earlier, where my friend was talking about the HLCS plus is run, there's a nicer picture of it. 02:22.760 --> 02:26.760 There's three bits of software we use, a Zerakast, which is the actual streaming server. 02:26.760 --> 02:33.760 Mix, which is on my laptop, which is just a virtual DJ deck, and but, which stands for broadcast using this tool. 02:33.760 --> 02:36.760 And that is just a client. 02:37.760 --> 02:39.760 Zerakast is the main star of the show. 02:39.760 --> 02:40.760 We've been trying to get this working. 02:40.760 --> 02:45.760 I'll point out, up until now, we've been using radio cult, which we've been paying for streaming. 02:45.760 --> 02:48.760 But I don't like doing that, because the cloud is someone else's computer. 02:48.760 --> 02:50.760 So we're trying to get it working here. 02:50.760 --> 02:52.760 We have had issues with it. 02:52.760 --> 02:55.760 That's not to say that the Zerakast developers are bad. 02:55.760 --> 02:58.760 More that they're not the same as me. 02:58.760 --> 03:00.760 It is slightly over-complicated. 03:00.760 --> 03:04.760 You can probably just run ice cast on its own, which is the actual streaming protocol. 03:04.760 --> 03:09.760 But Zerakast includes a system for managing lots of radio stations. 03:09.760 --> 03:12.760 By default, it can handle about 50 stations simultaneously. 03:12.760 --> 03:14.760 And it includes everything you need. 03:14.760 --> 03:19.760 Ice cast, the streaming client, and liquid soap, which is a playlist programming system. 03:19.760 --> 03:22.760 Mix is used on the laptop. 03:22.760 --> 03:26.760 The way we stream is that each DJ or each host brings in their laptop, 03:26.760 --> 03:30.760 connects it up to everything, and then connects to the server. 03:30.760 --> 03:33.760 This causes problems that I will talk about later. 03:33.760 --> 03:36.760 But mix is great just as a general recommendation. 03:36.760 --> 03:37.760 It's open source. 03:37.760 --> 03:39.760 It has virtual DJ decks and a virtual mixer. 03:39.760 --> 03:44.760 If you want to get into music, you can try out DJing with this, although it is very difficult. 03:44.760 --> 03:45.760 And it does also stream on its own. 03:45.760 --> 03:49.760 You don't actually need to use but we use but because we do. 03:49.760 --> 03:50.760 But is there. 03:50.760 --> 03:52.760 That's not to say that it's bad. 03:52.760 --> 03:54.760 It just only does one thing, and it does it well. 03:54.760 --> 03:55.760 So I can't complain. 03:55.760 --> 03:58.760 It just connects to a streaming server. 03:58.760 --> 04:02.760 Getting this working will talk about this. 04:02.760 --> 04:09.760 Installing is there a cast requires running a bash script directly onto your server, 04:09.760 --> 04:12.760 which I don't like doing, and this is that it didn't like doing. 04:12.760 --> 04:14.760 But I convinced them to do it. 04:14.760 --> 04:16.760 Whoops, I forgot about CloudFlare. 04:16.760 --> 04:20.760 You can't use CloudFlare because CloudFlare proxy will interrupt the audio stream, 04:20.760 --> 04:22.760 so we have to go around that. 04:22.760 --> 04:26.760 Then there was too many firewalls because there's the node firewall, the cluster firewall, 04:26.760 --> 04:30.760 the ubiquity firewall, and then the Docker and the VM, 04:30.760 --> 04:35.760 and then the fact that we're connected to the university's internet, which is a whole other system. 04:35.760 --> 04:37.760 Okay, I think EngineX is the problem. 04:37.760 --> 04:43.760 So I think we're just going to have to forward the port because the reverse proxy isn't working. 04:43.760 --> 04:45.760 Oh, it's working now. 04:45.760 --> 04:48.760 This slide was made before we got it working. 04:48.760 --> 04:52.760 I was up two hours last night trying to actually get it working, and it's still not working. 04:52.760 --> 05:07.760 I think our server is just really not set up the way it should be for it. 05:07.760 --> 05:13.760 But problems we have still been like streaming on radio calls using our old system. 05:13.760 --> 05:18.760 And a lot of things I've learned about actually running the station don't have dead air. 05:18.760 --> 05:22.760 This is the main thing that you will hear about running a radio station. 05:22.760 --> 05:24.760 And seriously, it's actually awful. 05:24.760 --> 05:30.760 The actual chairperson of the society who is not me doesn't see this as much of an issue as it actually is. 05:30.760 --> 05:34.760 But it's very annoying if you're trying to listen to the radio station, 05:34.760 --> 05:38.760 and you connect to it, and then you hear nothing, and you don't know if your phone is broken, 05:38.760 --> 05:41.760 or if they're just in the middle of switching laptops. 05:41.760 --> 05:42.760 Which is the problem. 05:42.760 --> 05:46.760 You have to stop the stream, unplug the laptop, someone else comes into the studio, 05:46.760 --> 05:48.760 set the laptop up, and then it won't connect for some reason. 05:48.760 --> 05:52.760 We have to keep plugging it in and out until it eventually connects, and then it does work. 05:52.760 --> 05:54.760 But that takes like 10 minutes. 05:54.760 --> 05:58.760 Sometimes the roadcaster just doesn't work, but I don't know, road or weird. 05:58.760 --> 06:00.760 You just have to keep changing ports. 06:00.760 --> 06:05.760 Please get pop filters if you're going to be doing streaming, and you have money. 06:05.760 --> 06:06.760 It's really annoying. 06:06.760 --> 06:10.760 I've did by pop filters, but they're actually the wrong shape, and they don't go on their rights properly. 06:10.760 --> 06:12.760 And seriously, don't have dead air. 06:12.760 --> 06:14.760 So fixing them. 06:14.760 --> 06:16.760 The best thing you can do about dead air. 06:16.760 --> 06:18.760 I found is dead air playlist. 06:18.760 --> 06:24.760 This is a feature in liquid soap, which manages the actual stream on the actual audio stream. 06:24.760 --> 06:28.760 You can set it up in a zerk house, so that when there is no live audio source, 06:28.760 --> 06:32.760 it just simply goes back onto a fallback playlist, and it will run through that. 06:32.760 --> 06:38.760 So that instead of just 10 minutes of silence, you get 10 minutes of some random song, 06:38.760 --> 06:40.760 which then gets interrupted by the live broadcast. 06:41.760 --> 06:44.760 Ideally, we would have a shared PC, but we can't afford them. 06:44.760 --> 06:48.760 And yeah, for the roadcaster, just changing the USB ports eventually works. 06:48.760 --> 06:50.760 And we take a pop filters, but I got the wrong ones. 06:50.760 --> 06:52.760 But it's still work, and yeah, the dead air. 06:52.760 --> 06:54.760 Don't have dead air. 06:54.760 --> 06:56.760 Where can you listen to this amazing station? 06:56.760 --> 06:58.760 You can listen to it at radio.sociities.au, 06:58.760 --> 07:02.760 slash public slash to ut radio, because I haven't set the URL up correctly. 07:02.760 --> 07:04.760 Or you can listen to it on neocities.org. 07:04.760 --> 07:07.760 This was not created by me, the people who run the society 07:07.760 --> 07:09.760 to have no computer science experience at all. 07:09.760 --> 07:13.760 We've been begging them to change it, and also you can follow us on Instagram. 07:13.760 --> 07:17.760 We do live broadcast every Thursday and Friday when it's working. 07:17.760 --> 07:21.760 And we should, we are setting up the auto DJ to play music for the rest of the week. 07:21.760 --> 07:25.760 If you have questions, I have scheduled this talk tonight to run for a flight, 07:25.760 --> 07:28.760 but I will actually be outside for a few minutes at least. 07:28.760 --> 07:32.760 And you can email my university email there. 07:32.760 --> 07:35.760 This is a great of comments. 07:35.760 --> 07:38.760 And also, thanks to Rouen and Tyler for helping me set up the server. 07:38.760 --> 07:40.760 James and Thomas were setting the society. 07:40.760 --> 07:42.760 No, the hug and my great girlfriend who was watching right now. 07:42.760 --> 07:45.760 And Katie Behan for running society's office. 07:45.760 --> 07:49.760 A four person job being done by one person because we're in middle hiring freeze. 07:49.760 --> 07:51.760 And I've duplicated the slide. 07:51.760 --> 07:52.760 And that's it. 07:52.760 --> 07:57.760 So I'm going to do a little bit of a live demo here, 07:57.760 --> 07:58.760 because it is somewhat working. 07:58.760 --> 08:01.760 And dear girl, the hyperland doesn't play nice with the projector. 08:02.760 --> 08:04.760 This is what Zercast looks like. 08:04.760 --> 08:06.760 So here we have, I can't duplicate it. 08:06.760 --> 08:09.760 Here we have our dashboard. 08:09.760 --> 08:10.760 So this is to your radio. 08:10.760 --> 08:12.760 You can see it's playing the playlist right now. 08:12.760 --> 08:13.760 But I just set up a test. 08:13.760 --> 08:15.760 You can set up streams in different quality. 08:15.760 --> 08:17.760 You can set up different pages. 08:17.760 --> 08:18.760 You can have podcasts. 08:18.760 --> 08:19.760 You can schedule. 08:19.760 --> 08:21.760 You can really do proper good stuff with this. 08:21.760 --> 08:24.760 Ice casting connective for the actual live streaming when it works. 08:24.760 --> 08:27.760 And it even supports song requests, which is kind of fun. 08:28.760 --> 08:32.760 And I believe let's see how much storage I was given on the staging server. 08:32.760 --> 08:34.760 I think we were given 100 gigabytes. 08:34.760 --> 08:36.760 No, 30. 08:36.760 --> 08:39.760 Ron's being stingy with the server today. 08:39.760 --> 08:41.760 So this is our main page here. 08:41.760 --> 08:43.760 I had to get this working last night. 08:43.760 --> 08:44.760 But it is actually playing music. 08:44.760 --> 08:49.760 So at the very least, if you do want to run a just a simple DJing station, 08:49.760 --> 08:51.760 it's actually very easy to set up. 08:51.760 --> 08:54.760 Because the incoming connection was the problem that we were having. 08:54.760 --> 09:00.760 It's the outgoing connection is actually just proxy through the HTTP and HTTPS ports. 09:00.760 --> 09:03.760 So any web browser can easily access it. 09:03.760 --> 09:06.760 I believe is going through CloudFlare and NGNX. 09:06.760 --> 09:09.760 And I guess I have time for a few questions. 09:09.760 --> 09:10.760 You. 09:10.760 --> 09:25.760 I think I was talking too fast. 09:25.760 --> 09:30.760 Hi. 09:30.760 --> 09:36.760 Question and then getting the mic mustered on. 09:36.760 --> 09:38.760 Do you integrate? 09:38.760 --> 09:44.760 Can you show up your the songs that are playing in some way? 09:44.760 --> 09:48.760 Our says feed, the but client, whatever. 09:48.760 --> 09:50.760 Not that I know of, but you probably can. 09:50.760 --> 09:53.760 I believe it does support embedding on websites. 09:53.760 --> 09:55.760 If I actually go to. 09:55.760 --> 10:01.760 That works. 10:01.760 --> 10:07.760 We do have our website here and you can integrate on websites with HTML and you can have an embedded 10:07.760 --> 10:08.760 player in there. 10:08.760 --> 10:11.760 But I don't know but I don't know but I don't use it on. 10:11.760 --> 10:14.760 I'm looking into it though. 10:14.760 --> 10:15.760 Any more questions? 10:15.760 --> 10:16.760 Yep. 10:16.760 --> 10:18.760 Question from the back here. 10:18.760 --> 10:23.760 So with all the reverse proxy stuff, how does ice cast listener count work? 10:23.760 --> 10:26.760 That's a problem I run into pretty regularly with ice cast. 10:26.760 --> 10:28.760 Because it just doesn't like proxies. 10:28.760 --> 10:29.760 Yeah, it doesn't. 10:29.760 --> 10:30.760 I have no idea. 10:30.760 --> 10:32.760 It's not working. 10:32.760 --> 10:33.760 So. 10:33.760 --> 10:36.760 Do you have more questions? 10:36.760 --> 10:37.760 Yep. 10:37.760 --> 10:39.760 I was going to. 10:39.760 --> 10:41.760 The mic is there one second. 10:41.760 --> 10:42.760 Yeah. 10:42.760 --> 10:43.760 Thank you. 10:43.760 --> 10:45.760 I was looking for the room. 10:45.760 --> 10:46.760 I'm not late. 10:46.760 --> 10:48.760 Maybe this is out of scope. 10:48.760 --> 10:49.760 Please let me know if it is. 10:49.760 --> 10:52.760 I was going to ask about the licensing and stuff about hosting. 10:52.760 --> 10:57.760 Radio online and broadcasting the songs. 10:57.760 --> 11:01.760 Because I emailed the media authority in Germany. 11:01.760 --> 11:05.760 In the state, they said for a small radio, it's not required. 11:05.760 --> 11:10.760 But I'm afraid, again, to publicly share. 11:10.760 --> 11:11.760 I don't know. 11:11.760 --> 11:15.760 I would not recommend doing anything commercial with other people's music. 11:15.760 --> 11:17.760 We're probably violating copyright. 11:17.760 --> 11:18.760 Yeah. 11:18.760 --> 11:19.760 Not commercial. 11:19.760 --> 11:20.760 Like a hobby project. 11:20.760 --> 11:21.760 No ads. 11:21.760 --> 11:22.760 No customized fits. 11:22.760 --> 11:24.760 Did you have some experience in that? 11:24.760 --> 11:25.760 I have no experience. 11:25.760 --> 11:27.760 You probably won't get in trouble. 11:27.760 --> 11:30.760 But fast them does not endorse that statement. 11:30.760 --> 11:31.760 That's so political answer. 11:31.760 --> 11:33.760 I wasn't waiting for that. 11:33.760 --> 11:34.760 Thank you. 11:34.760 --> 11:35.760 Good work. 11:35.760 --> 11:36.760 Hi. 11:36.760 --> 11:49.760 Did you happen to evaluate like Libra time or airtime as a station program in management? 11:50.760 --> 11:51.760 I actually haven't heard of it. 11:51.760 --> 11:53.760 What did you say the name was? 11:53.760 --> 11:55.760 It was airtime some time ago. 11:55.760 --> 11:58.760 But then it was forked as a Libra time. 11:58.760 --> 12:00.760 I haven't heard of it. 12:00.760 --> 12:02.760 I have been looking into other alternatives. 12:02.760 --> 12:03.760 I just haven't stumbled on it. 12:03.760 --> 12:05.760 Is there a chance to just say that? 12:05.760 --> 12:08.760 It should be where mix is, I think. 12:08.760 --> 12:09.760 Interesting. 12:09.760 --> 12:11.760 I will look into that. 12:11.760 --> 12:13.760 Thank you. 12:13.760 --> 12:14.760 One more. 12:14.760 --> 12:18.760 I'm just curious. 12:18.760 --> 12:20.760 How do you handle bandwidth? 12:20.760 --> 12:24.760 Are you using any CDN or who I best? 12:24.760 --> 12:27.760 That would be a sadman question that I don't know the answer to. 12:27.760 --> 12:28.760 I'm sorry. 12:28.760 --> 12:32.760 I can pass it to one of the systems if you like. 12:32.760 --> 12:33.760 Is it wrong there? 12:33.760 --> 12:36.760 We will one day do a bit length because a double exchange. 12:36.760 --> 12:37.760 If we just give them everything. 12:37.760 --> 12:38.760 Thank you. 12:38.760 --> 12:41.760 Please repeat the answer, maybe. 12:41.760 --> 12:47.760 We have one gigabit link through the Dublin Exchange and all of the services are just given everything. 12:47.760 --> 12:51.760 We only have about five services running on the CSS++ service. 12:51.760 --> 12:52.760 So it's not a big deal. 12:52.760 --> 12:54.760 And about four of those are websites. 12:54.760 --> 12:56.760 And one Minecraft server. 12:56.760 --> 12:59.760 I can probably do one more. 12:59.760 --> 13:04.760 Or I think it's all. 13:04.760 --> 13:06.760 Let's thank this speaker again. 13:06.760 --> 13:13.760 Thank you very much. 13:13.760 --> 13:17.760 Thank you very much.