[Freeswitch-users] World Record with Freeswitch

[Stanislav Sinyagin]

yes, I would also place the ticker source in a location equally
distant from singing locations, but Thomas mentioned it was played
from Patagonia. So, the singers in Patagonia had to receive it from
Wales, together with Wales' orchestra and singers?



On Tue, Jun 9, 2015 at 12:36 AM, Ken Rice <krice at freeswitch.org> wrote:
> The use of the click track was to sync the singers. This is a common
> recording method. The click track is one of the reasons when you see video
> of people recording in the studio, they all have headsets on.
>
> So if they have a click track originating at the furthest point for the duet
> it allows both singers to be recorded in sync on the other end.
>
> K
>
>
> On 6/8/15, 5:22 PM, "Stanislav Sinyagin" <ssinyagin at gmail.com> wrote:
>
>> wait a sec, you were sending sync clicks from Patagonia, so the
>> singers in Wales received them 0.5 sec later, and their sound arrives
>> to you with 1 second delay. Or were you recording in Wales and
>> Patagonia, and later mixing in a studio? But that would be a cheating
>> :)
>>
>> On Mon, Jun 8, 2015 at 4:57 PM, Thomas <lists at virtues.net> wrote:
>>> "Exactly"? - no. :-) Those left at home made a Storify for it, but it doesn't
>>> have much tech info:
>>> https://storify.com/inquality/world-record-attempt-using-ipdtl ...
>>>
>>> Basically it went from Chrome (ipdtl.com) to a Freeswitch installation in the
>>> US, because the direct path to the UK was
>>> riddled with packet loss, and from there to a Comrex Bric in Wales.
>>> Freeswitch was important, because it allowed us to
>>> influence the path and to remove Chrome's DTLS encryption, so the Comrex
>>> could work with it. The location in Patagonia
>>> was a private home with a consumer 512/2048kbit DSL uplink, the audio was
>>> 64kbit/s Opus mono.
>>>
>>> They used a "click track" to sync the singers. We were playing a CD with the
>>> clicks in Patagonia and everyone joined in
>>> on the 12th click. Quite low tech. :-)
>>>
>>> Disclaimer: I'm not with the BBC. I was there for In:Quality / ipDTL.
>>>
>>> On 07.06.2015 22:03, Ken Rice wrote:
>>>> Is there more documentation on exactly how this took place?
>>>>
>>>> Sent from my iPhone
>>>>
>>>>> On Jun 7, 2015, at 6:28 PM, Thomas <lists at virtues.net> wrote:
>>>>>
>>>>> I thought you might be interested to know that this:
>>>>>
>>>>> http://www.bbc.com/news/uk-wales-33031520
>>>>>
>>>>> ... involved Freeswitch between Chrome and a Comrex Bric. :)
>>>>>
>>>>> Cheers!
>>>>>
>>>>> P.S.: A video of the transmission is here:
>>>>> http://www.bbc.co.uk/programmes/p02t3b36?ns_mchannel=social&ns_campaign=bbc
>>>>> _wales&ns_source=twitter&ns_linkname=wales
>>>>>
>>>>>
>>>>>
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>
> --
> Ken
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