W3C home > Mailing lists > Public > public-webrtc@w3.org > June 2018

Re: WebRTC NV Use Cases

From: Harald Alvestrand <harald@alvestrand.no>
Date: Mon, 18 Jun 2018 18:23:24 +0200
To: public-webrtc@w3.org
Message-ID: <9ab7ce83-3e1b-450a-da2b-1d2b7ae3f163@alvestrand.no>
On 06/18/2018 05:21 PM, Mészáros Mihály wrote:
>
> You are right it is low latency audio and video.
>
> The key how low it could be. Ultra low latency is important for
> performing arts.
>
> Requirements what I could think about is to turning off the jitter
> buffer totally, raw audio codec, (may skip encryption), no packet
> checksum counting, so to avoid anything that could add any latency.
>

The requirement for reasonable quality in conversation is ~100 ms
microphone-to-ear.

The requirement for musicians playing together is (depending on who you
ask) between 5 and 20 ms microphone-to-ear.

> Misi
>
>
> 2018-06-18 17:05 keltezéssel, Peter Thatcher írta:
>> How is it different than an audio call, which allows attempts to be
>> as low-latency as possible?  Is there a requirement for this use case
>> that we don't already have?
>>
>> On Mon, Jun 18, 2018 at 11:43 AM Mészáros Mihály <bakfitty@gmail.com
>> <mailto:bakfitty@gmail.com>> wrote:
>>
>>     2018-05-09 21:29 keltezéssel, Bernard Aboba írta:
>>>     On June 19-20 the WebRTC WG will be holding a face-to-face meeting in Stockholm, which will focus largely on WebRTC NV. 
>>>
>>>     Early on in the discussion, we would like to have a discussion of the use cases that WebRTC NV will address. 
>>>
>>>     Since the IETF has already published RFC 7478, we are largely interested in use cases that are either beyond those articulated in RFC 7478, or use cases in the document that somehow can be done better with WebRTC NV than they could with WebRTC 1.0. 
>>>
>>>     As with any successful effort, we are looking for volunteers to develop a presentation for the F2F, and perhaps even a document. 
>>>
>>     Hi,
>>
>>     Let me add one possible WebRTC Use Case: Ultra Low Latency audio/
>>     video for musical performances and other performing arts with WebRTC
>>     Tuned WebRTC stack for ultra low latency.
>>
>>     SW/HW solution that we use actually to solve the use case
>>     e.g.
>>
>>       * http://www.ultragrid.cz/
>>       * https://www.garr.it/en/communities/music-and-art/lola
>>
>>     Read more on tools and use case on https://npapws.org/ :
>>
>>       * https://npapws.org/wp-content/uploads/2017/01/S.Ubik-J.Melnikov-Network-delay-management-2017.pptx
>>       * https://npapws.org/wp-content/uploads/2016/02/Performing-Arts-and-Advanced-Networking.pptx
>>
>>     Regards,
>>     Misi
>>
>

-- 
Surveillance is pervasive. Go Dark.
Received on Monday, 18 June 2018 16:23:53 UTC

This archive was generated by hypermail 2.4.0 : Friday, 17 January 2020 19:18:42 UTC