live stream synchronization issue

RobotDJ · 19th March 2009, 17:22

I setup Winamp with Shoutcast server running on a computer. However, when it plays a MP3 file via Winamp, and streams it out with Shoutcast Source, the audio I hear on a different machine (listen.pls) does not match what is being played on the server's Winamp. They are the same mp3 file, but they just not synchronized to each other. I understand that there are issue with prebuffering and latency, but the offset is a lot more than just a few seconds. I was able to synchronized once or twice, but I can't seem to repeat it. Any hint about how to do it right, or I just have to live with this?

caraoge · 19th March 2009, 19:09

A offset > 10 seconds at 128kbps is normal.
The higher the bitrate, the higher the offset.

RobotDJ · 23rd March 2009, 15:39

Is there anything I can do to make it near-real time? 10 second delay is not acceptable, since I want to use the live stream to broadcast time of day, etc.

caraoge · 23rd March 2009, 15:51

You can try to use the lowest MP3 or AAC+ encoder to reduce the offset to a couple of seconds (3-4).
But this causes a very bad sound quality!

I`ve never seen a (free) realtime streaming media server. Most of them have at least a three seconds offset (with a bad quality).

19th March 2009, 17:22	#1
RobotDJ Junior Member Join Date: Mar 2009 Posts: 3	live stream synchronization issue I setup Winamp with Shoutcast server running on a computer. However, when it plays a MP3 file via Winamp, and streams it out with Shoutcast Source, the audio I hear on a different machine (listen.pls) does not match what is being played on the server's Winamp. They are the same mp3 file, but they just not synchronized to each other. I understand that there are issue with prebuffering and latency, but the offset is a lot more than just a few seconds. I was able to synchronized once or twice, but I can't seem to repeat it. Any hint about how to do it right, or I just have to live with this?

19th March 2009, 19:09	#2
caraoge Senior Member Join Date: Dec 2003 Location: Saarland, Germany Posts: 331	A offset > 10 seconds at 128kbps is normal. The higher the bitrate, the higher the offset. greets, Michael TechnoBase.FM \| HouseTime.FM \| HardBase.FM \| TranceBase.FM \| CoreTime.FM \| We aRe oNe

23rd March 2009, 15:51	#4
caraoge Senior Member Join Date: Dec 2003 Location: Saarland, Germany Posts: 331	You can try to use the lowest MP3 or AAC+ encoder to reduce the offset to a couple of seconds (3-4). But this causes a very bad sound quality! I`ve never seen a (free) realtime streaming media server. Most of them have at least a three seconds offset (with a bad quality). greets, Michael TechnoBase.FM \| HouseTime.FM \| HardBase.FM \| TranceBase.FM \| CoreTime.FM \| We aRe oNe

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23rd March 2009, 15:39	#3
RobotDJ Junior Member Join Date: Mar 2009 Posts: 3	Is there anything I can do to make it near-real time? 10 second delay is not acceptable, since I want to use the live stream to broadcast time of day, etc.