[Freeswitch-users] World Record with Freeswitch

[Ken Rice]

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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>> 
>> 
>> _________________________________________________________________________
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>> http://www.freeswitchsolutions.com
>> 
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> 
> _________________________________________________________________________
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> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
> 
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> http://confluence.freeswitch.org
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> 
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-- 
Ken
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