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TerryLiberty
Lokahi
USA
207 Posts |
 Posted - 11/20/2012 : 5:47:56 PM
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A local buddy and I are trying to hook up online to jam and not having much luck. We can hook up with Skype but every time he plays a few notes it shuts off my sound at his end. Whenever I play a few notes his sound disappears from my speakers. Does anyone out there have a way to use the web to jam with friends where you're both playing at the same time?
Mahalo!!
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Terry
Olympia, WA
Forever a haumana |
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Fran Guidry
Ha`aha`a
USA
1581 Posts |
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TerryLiberty
Lokahi
USA
207 Posts |
Posted - 11/21/2012 : 09:37:04 AM
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Mahalo, Fran!
I'll take a look. |
Terry
Olympia, WA
Forever a haumana |
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slipry1
Ha`aha`a
USA
1511 Posts |
Posted - 11/25/2012 : 12:38:07 PM
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| The problem with the free version of Skype is that it runs in the half duplex mode, which results in a 2 - 4 second delay, so no duets. If you pay for the full-up Skype, it runs in the full duplex mode, so no time delay and duets (or more) are possible. I know this because I'm taking Skype lessons from Alan Akaka, and I'm an electrical engineer by trade. |
keaka |
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TerryLiberty
Lokahi
USA
207 Posts |
Posted - 11/25/2012 : 6:21:08 PM
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Jack:
So cool!!!!! Being as how I'm an ME by education and an audio freak by avocation ever since high school, I get exactly what you're saying. So how is the latency in a full duplex Skype hookup? Is it tolerable? I'm going to look into this immediately!
Mahalo. |
Terry
Olympia, WA
Forever a haumana |
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Lawrence
Ha`aha`a
USA
1597 Posts |
Posted - 11/26/2012 : 08:15:44 AM
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There is bound to be some latency due to the speed of light and the multiple levels of buffering for network transmission. Due to the fact that the route taken by your internet packets with change every time you "hook up" the latency will also be somewhat unpredictable. At 186K miles per second and assuming "line of sight" transmission works out to 10mS of latency per 1000 miles round-trip. Somewhere around 50mS the delay will become intolerable so things should be OK up to 5000 miles (for the speed of light problem). Of course the route through the wires may be MUCH longer than the line of sight distance. If your signal is sent out to a Clark orbit satellite (like a lot of TV transmissions still do) you have to add another 80K miles to the round-trip distance. The buffering problem is much more unpredictable, some communications may be buffered into chunks as big as 100mS and will will result in noticeable delay even for short distances.
So expect some unpredictability in this latency issue.
This is part of the reason why Ninjam was developed, so that the latency could be "built into" the music.
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Mahope Kākou...
...El Lorenzo de Ondas Sonoras |
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TerryLiberty
Lokahi
USA
207 Posts |
Posted - 11/26/2012 : 6:15:50 PM
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Lawrence:
Thanks for the info on latency. Very illuminating.
Jack:
I sprung (sprang? springed?) for a "premium" version of Skype. Is that the same as the full-up version you mention? In contacts, I set up a new group with my collaborator in it. When I initiated the group call, I got the same results. Whenever he played, it blanked out the sound coming from me. Whenever I played, it blanked out the sound coming from him. I've searched the web for quite a while and can't find anyone that has a solution. Do I need to get some lessons from Alan?
Are you having better luck?
Regards. |
Terry
Olympia, WA
Forever a haumana |
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Mika ele
Ha`aha`a
USA
1493 Posts |
Posted - 12/28/2012 : 7:50:17 PM
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As a Cisco trained and certified Network Engineer by trade, there are lots of other things that will cause your "experience" quality to be degraded and the VAST majority of them have nothing to do with the version of skype you use. You will have NO CONTROL over how the myriad of switches, modems, routers, cabling, satellite uplinks (vice under water cabling), and such -- actually transfer/modify/change your video and audio packets from one end to the other. This is ON TOP of the speed of light issue discussed above.
Like to old days when phone circuits were less busy during off-peak hours, the internet traffic has peak busy times and "not-so-busy" times. However, your packets may get routed to Timbuktu, then to Kyoto, then to Chicago, and then to Atlanta, before reaching the intended destination -- so the distance is ALMOST never the mercator projection (great circle) distance from Point-A to Point-B. So, speed-of-light is the limiting factor -- but the actual distance is usually much farther than you think. |
E nana, e ho'olohe. E pa'a ka waha, e hana ka lima. |
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