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Reduce delay streaming on youtube
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Joined: 10/1/2013(UTC) Posts: 195  Location: Bovalino (Italy) Thanks: 86 times
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Goodmorning everyone. I would like to understand a few things, I ask someone who may have more experience. We produce sporting events on the web, just a tv broadcasts our productions, taking audio and video from our youtube channel on DTT. Unfortunately stream brings with it a delay of about 30 seconds, I would understand if in the future this delay can be minimized or if you already can do. Alternatively there is an inexpensive system that guarantees a reduced delay for a 720p transmission 4mega upload?
Thank you
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Joined: 3/20/2014(UTC) Posts: 2,721  Location: Bordeaux, France Thanks: 243 times
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Hi!
Streaming to YouTube or any RTMP platform usually gives around 20/30 seconds delay. This is common.
Here are suggestions (among others) for streaming to the DTT TV channel:
- install a streaming server in their facility and stream both destinations (YT + TV)
Using a small and open source solution like Mist Server for example you can reduce latency at least by half. Give it a try!
Using Wowza Low Latency feature, it can be much less but it's not free.
- use another protocol like RTSP or Unicast over UDP for providing the feed to the TV channel. These can be close to realtime.
- use a professional broadcast solution like Aviwest or LiveU or TVU (or some others) or Satellite.
I use Aviwest often like many european channels. Latency can be reduced to 3 seconds.
Obviously it is not cheap and requires long-term investments or rentals...
Maybe this channel is already equipped with such a solution, talk to them...
Cordiali saluti,
Guillaume
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Joined: 6/4/2013(UTC) Posts: 308 Location: Germany Thanks: 1 times
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Or just set the stream option to "Low Latency" in your YouTube Live-Dashboard ;-) Then you should have a latency around 5 to 10 seconds.
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2 users thanked ovinas for this useful post.
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@ovinas
I never had under 15/20 seconds latency on YouTube for 1080p ingests even with Low Latency option, due to the multiscreen transcoding process I suppose. Maybe for SD streams? I don't know that...
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1 user thanked DWAM for this useful post.
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Joined: 8/2/2013(UTC) Posts: 1,033  Location: Fairhope, Alabama USA Thanks: 543 times
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ovinas wrote:Or just set the stream option to "Low Latency" in your YouTube Live-Dashboard ;-) Then you should have a latency around 5 to 10 seconds. We routinely get 6-12 seconds latency on a 720p/30 stream to YouTube. In fact sometimes our European viewers have less than those here in the States. - Tom
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1 user thanked sinc747 for this useful post.
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