Using Streaming Audio

To get streaming audio into Opensim/SL is a breeze. Just follow these instructions:

1. Download the free software
Download Broadwave Streaming Audio Server (free). When the webpage opens, click the Get It Now button.

2. Give it an mp3 file
When the software has installed and is running, go to the toolbar, and click on Options, Audio Files, and Add an mp3 file from your hard-drive. Click on OK. The server should now show a varying green bar, showing that the mp3 file is playing.

3. Connect locally
Click the Connect button. A webpage will open, containing links. Click the Broadwave Playlist, Broadband Stream, Windows Media link. Windows Media Player should now open in your browser and start playing the mp3 file.

Now that the first goal of getting the server delivering a streaming mp3 to your media player, in local mode, it is now time to broadcast to the internet.

4. Open your Router for TCP Port 88
If you use a router with an in-built hardware firewall, then you need to configure the router to pass the required port (called port-forwarding). The port that Broadwave needs to be open for inbound traffic is: TCP/88. There are detailed instructions on how to setup port-forwarding on your router on the PortForwarding website. Select your router from the list, then you will be taken to a page that lists most on-line games that need port-forwarding. Choose 3-In-a-Bed, as an example, this uses port 4871, follow the instructions for that, but replace 4871 with 88.

5. Get your current external IP address
You are probably connected to the internet using a dynamically assigned IP address (it changes from time to time) by your Internet Service Provider, and this will be the actual external address of your router. Get the current, external IP address of your router, using this link. Copy this to the clipboard. Mine looked like this:

6. Create the Streaming URL
On the toolbar click Options, then General, and under Connection select the 'Use this specified known domain or public IP', then paste your external IP address into the box, and OK. If you now click the Connect button all the links will now have this address inserted. The link here we need is the Broadband Download link, mine looked like this:

7. Try the URL
Just copy and paste that Streaming URL you just created into any browser. Windows media should now open, and your mp3 should play. Now launch Opensim or Second Life, and copy this URL into the Music URL box, on the Media tab of About Land. Press the music start button, and you should be able to hear your stream!

You can now experiment with several mp3 files, or even stream live music through your soundcard and use that as the source. You may also wish to move this software to a dedicated server, with a static IP address, especially if you want many people to be able to hear your broadcast.

Have fun,



Anonymous said...

Web casting, or broadcasting over the internet, is a media file (audio-video mostly) distributed over the internet using streaming media technology. Streaming implies media played as a continuous stream and received real time by the browser (end user). Streaming technology enables a single content source to be distributed to many simultaneous viewers. Streaming video bandwidth is typically calculated in gigabytes of data transferred. It is important to estimate how many viewers you can reach, for example in a live webcast, given your bandwidth constraints or conversely, if you are expecting a certain audience size, what bandwidth resources you need to deploy.

To estimate how many viewers you can reach during a webcast, consider some parlance:
One viewer: 1 click of a video player button at one location logged on
One viewer hour: 1 viewer connected for 1 hour
100 viewer hours: 100 viewers connected for 1 hour…

Typically webcasts will be offered at different bit rates or quality levels corresponding to different user’s internet connection speeds. Bit rate implies the rate at which bits (basic data units) are transferred. It denotes how much data is transmitted in a given amount of time. (bps / Kbps / Mbps…). Quality improves as more bits are used for each second of the playback. Video of 3000 Kbps will look better than one of say 1000Kbps. This is just like quality of a image is represented in resolution, for video (or audio) it is measured by the bit rate.

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Anonymous said...

Thanks for the steps served me much because I understand because I was working, thanks always wonderful ideas!

Raven Green said...

the new version of broadwave does not have the same options as the old version . I can play and connect with winamp but the same URL will not play in OSGrid or SL. HELP !