EducationBot: Новая страница: «{{Английская Википедия/Панель перехода}} {{short description|Audio-over-Ethernet technology}} {{Infobox AoE | name = EtherSound | logo = 150px | manufacturer = Digigram | date = {{start date and age|2002}} | switchable = NoAudio may only be passed unidirectionally through a hub or switch. | routable = No | 100meg =...»

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Новая страница: «{{Английская Википедия/Панель перехода}} {{short description|Audio-over-Ethernet technology}} {{Infobox AoE | name = EtherSound | logo = 150px | manufacturer = Digigram | date = {{start date and age|2002}}<ref name=introduction/> | switchable = No<ref group="note">Audio may only be passed unidirectionally through a hub or switch.</ref> | routable = No | 100meg =...»

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{{Английская Википедия/Панель перехода}}
{{short description|Audio-over-Ethernet technology}}
{{Infobox AoE
| name = EtherSound
| logo = [[File:LogoEtherSound.png|150px]]
| manufacturer = Digigram
| date = {{start date and age|2002}}<ref name=introduction/>
| switchable = No<ref group="note">Audio may only be passed unidirectionally through a [[Ethernet hub|hub]] or [[Ethernet switch|switch]].</ref>
| routable = No
| 100meg = yes
| 1gig = yes
| latency = {{val|125|ul=µs}}<ref name=buildingNetworks/>
| maxchannels = 512 (256 each direction)<ref name=introduction/>
| samplingrate = {{val|192|ul=kHz}}<ref name=introduction/>
| bitdepth = 24 bits<ref name=introduction/>
}}

[[File:Fostex NetCIRA ES6300, ES-2PRO.jpg|thumb|Left: Fostex NetCIRA ES6300 – active speaker receiver which receives audio data converted to EtherSound protocol; right: Fostex NetCIRA ES-2PRO – EtherSound to analog audio converter]]

'''EtherSound''' is an [[audio over Ethernet|audio-over-Ethernet]] technology for [[audio engineering]] and [[broadcast engineering]] applications. EtherSound is developed and licensed by [[Digigram]].
<ref name="RefName">{{cite web
| url=http://www.lsionline.co.uk/news/story/The-EtherSound-Tested-Programme/-SFCU73
| title=The EtherSound Tested Programme
| publisher=
| accessdate=2016-05-18
| archive-url=https://web.archive.org/web/20160818133027/http://www.lsionline.co.uk/news/story/The-EtherSound-Tested-Programme/-SFCU73
| archive-date=2016-08-18
| url-status=dead
}}</ref>
EtherSound is intended by the developer to be compliant with [[IEEE 802.3]] Ethernet standards.<ref>{{citation |title=Tech Focus: Digital Audio Networks, Part 2 — The Major Players |author=Dan Daley |date=May 5, 2016 |url=http://www.sportsvideo.org/2016/05/05/tech-focus-digital-audio-networks-part-2-the-major-players/ |work=SVG News}}</ref> Just as the IEEE defines rates such as [[Fast Ethernet|100 Megabit]] and [[Gigabit Ethernet]] standards, EtherSound has been developed as both ES-100 (for use on dedicated 100 Megabit Ethernet networks or within a Gigabit network as a VLAN) and ES-Giga (for use on dedicated Gigabit Ethernet networks). The two versions of EtherSound are not compatible.

==Network technology==
While Ethersound is compliant with the IEEE 802.3 [[physical layer]] standards, logically it uses a [[token passing]] scheme of transporting audio data which prevents all of its features from being used on a standard Ethernet network. On a standard network, it is only able to distribute audio and control data one way. It is not designed to share Ethernet [[LAN]]s with typical office operations data or Internet traffic such as email. It supports two-way communications only when wired in a daisy chain topology.<ref name="AES">{{Cite web|title=Best Practices in Network Audio |publisher=Audio Engineering Society |year=2009 |url=http://www.aes.org/technical/documents/AESTD1003V1.pdf |accessdate=2010-05-05}}</ref> For this reason Ethersound is best used in applications suitable to a daisy chain network topology or in live sound applications that benefit from its low point-to-point latency.

==Low latency==
Low latency is important for many users of [[audio over Ethernet]] technologies.<ref>{{citation |title=Studer, Digigram partner for connectivity |work=Television Broadcast |date=2007|url=https://www.highbeam.com/doc/1G1-167104123.html|archive-url=https://web.archive.org/web/20160910080852/https://www.highbeam.com/doc/1G1-167104123.html|url-status=dead|archive-date=2016-09-10}}</ref><ref group="note">One of the most critical applications involves picking up sound from a vocalist's or instrumentalist's microphone on a live performance stage, mixing that signal with those received from other microphones (and performers) and delivering the mix to the performer via [[in-ear monitors]]. Latency in this application is particularly annoying to vocalists. This is because a singer hears his or her own voice through [[bone conduction]] as well as through the outer ear. If the sound from the in-ear monitor lags the bone-conduction sound by more than a few milliseconds, [[phase shifts]] and [[comb filter]]ing will become audible.</ref> EtherSound can deliver up to 64 channels of 48 kHz, 24-bit [[Pulse-code modulation|PCM]] audio data with a network latency of 125 [[microseconds]].
<ref name="buildingNetworks">
{{citation
|title=Building EtherSound Networks
|work=Digigram
|date=2005
|url=https://www.point-sourceaudio.com/wp-content/uploads/2016/12/BuildingESnetworks_v2.0.pdf
|archive-url=https://web.archive.org/web/20200811125018/https://www.point-sourceaudio.com/wp-content/uploads/2016/12/BuildingESnetworks_v2.0.pdf
|archive-date=2020-08-11
}}
</ref>
If including A/D and D/A conversions, this latency is about 1.5 milliseconds, the major part of
this latency being caused by the converters. Each device in a [[daisy chain (network topology)|daisy-chain]] network adds 1.4 microseconds of latency.
<ref name="introduction">
{{citation
|title=Overview: An Introduction to the ES-100 Technology
|work=Digigram
|date=2006
|url=http://www.radikaltr.com/LeCatalogue/images/attachments/Digigram_EtherSound_Overview_Brochure.pdf
|archive-url=https://web.archive.org/web/20200811112536/http://www.radikaltr.com/LeCatalogue/images/attachments/Digigram_EtherSound_Overview_Brochure.pdf
|archive-date=2020-08-11
}}
</ref>
EtherSound's network latency is stable and deterministic; The delay between any two devices on an EtherSound network can be calculated.

==EtherSound Licensees==

The following companies have licensed the EtherSound technology.<ref>{{cite web|url=http://www.ethersound.com/manufacturer/list.php|title=EtherSound Partners List|website=ethersound.com|publisher=Digigram|accessdate=2016-05-11}}</ref>

{{div col|colwidth=20em}}

* [[Allen & Heath]]<ref name="Allen">{{cite web | url=http://www.prosoundnetwork.com/article.aspx?articleid=28243| title=Allen amp Heath Joins EtherSound Licensee Network
| publisher=
| accessdate= 2016-05-18}}</ref>

* Amadeus<ref name="Amadeus">{{cite web | url=http://www.mixonline.com/thewire/amadeus-launches-new-pmx-d-series-speakers/427122
| title=Amadeus Launches New 'PMX D Series' Speakers
| date=5 April 2016
| publisher=Mixonline
| accessdate= 2016-05-18}}</ref>

* Apex Audio
* Archean Technologies<ref name="DiGiCo">{{cite web | url=http://www.avnetwork.com/print-page/article/76120
| title=EtherSound Adds DiGiCo And Whirlwind
| publisher=
| accessdate= 2016-05-18}}</ref>

* Audio Performance<ref name="MELPOMEN">{{cite web | url=http://nexo-sa.com/en/articles/259/melpomen-completes-its-first-ethersound-based-nexo-installat/
| title=MELPOMEN COMPLETES ITS FIRST EtherSound-BASED NEXO Installation
| publisher= NEXO
| accessdate= 2016-05-18}}</ref>

* AuviTran<ref name="CAMCO">{{cite web | url=http://www.creativemac.com/article/CAMCO-To-Equip-Entire-Product-Range-With-EtherSound-30164
| title=CAMCO To Equip Entire Product Range With EtherSound
| publisher=
| accessdate= 2016-05-18}}</ref>

* AuxTran<ref name="MELPOMEN" />
* Barix<ref name="Barix">{{cite web | url=http://newsletter.barix.com/public/archive.php?view=html&id=10:13
| title=Barix Up Date - Barix Relevance
| publisher=
| accessdate= 2016-05-18}}</ref>

* Bittner Audio<ref name="DiGiCo" />
* Bouyer<ref name="MELPOMEN" />
* CAMCO Audio<ref name="MELPOMEN" />
* [[Crest Audio|Crest]]<ref name="Peavey">{{cite web | url=http://www.avnetwork.com/miscellaneous-articles/0031/peavey-and-crest-audio-license-ethersound-technology/76355
| title=Peavey And Crest Audio License EtherSound Technology
| publisher=
| accessdate= 2016-05-18}}</ref>

* [[DiGiCo]]<ref name="DiGiCo" />
* [[Digigram]]<ref name="MELPOMEN" />
* [[Focusrite]]<ref name="Focusrite">{{cite web | url=https://www.soundonsound.com/sos/mar13/articles/focusrite-rednet.htm
| title=Focusrite RedNet - Ethernet Audio Interface System
| publisher=
| accessdate= 2016-05-18}}</ref>

* [[Fostex]]<ref name="MELPOMEN" />
* [[Innovason]]<ref name="MELPOMEN" />
* Klein + Hummel<ref name="Klein">{{cite web
| url=http://www.lsionline.co.uk/news/story/Klein-Hummel-licenses-EtherSound/UBP9ZE
| title=Klein+Hummel licenses EtherSound
| publisher=
| accessdate=2016-05-18
| archive-url=https://web.archive.org/web/20160818132130/http://www.lsionline.co.uk/news/story/Klein-Hummel-licenses-EtherSound/UBP9ZE
| archive-date=2016-08-18
| url-status=dead
}}</ref>

* LabX technologies<ref name="MELPOMEN" />
* [[Martin Audio]]
* Mediachip<ref name="DiGiCo" /><ref name="MELPOMEN" />
* [[Nexo]]<ref name="MELPOMEN" />
* [[Peavey Electronics]]<ref name="Peavey" />
* Pinanson<ref name="MELPOMEN" />
* [[QSC Audio Products|QSC]]<ref name="DiGiCo" />
* [[Richmond Sound Design]]<ref name="Digigram">{{cite web
| url=http://www.lsionline.co.uk/news/story/Digigram/-XXE0BF
| title=LSI online - Digigram
| publisher=
| accessdate=2016-05-18
| archive-url=https://web.archive.org/web/20160818132911/http://www.lsionline.co.uk/news/story/Digigram/-XXE0BF
| archive-date=2016-08-18
| url-status=dead
}}</ref>

* [[Studer]]<ref name="Studer">{{cite web | url=http://www.centron.sk/Storage/Document/Product/3447-Studer_OnAir%20SW-V4.0_Flyer_280-2.pdf
| title=New OnAir Software V4.0
| publisher=
| accessdate= 2016-05-18}}</ref>

* VTG Audio<ref name="MELPOMEN" />
* [[Whirlwind USA|Whirlwind]]<ref name="DiGiCo" />
* [[Yamaha Corporation]]<ref name="Yamaha">{{cite web | url=http://livedesignonline.com/theatre/peavey-crest-audio-yamaha-license-ethersound| title=Peavey, Crest Audio, & Yamaha License EtherSound
| publisher=
| accessdate= 2016-05-18}}</ref>

{{div col end}}

==Notes==
{{Reflist|group="note"}}

==References==
{{Reflist}}

==External links==
{{commons category|EtherSound}}
* [http://www.ethersound.com EtherSound website]

{{Digital audio and video protocols}}

{{DEFAULTSORT:Ethersound}}
[[Category:Audio engineering]]
[[Category:Audio network protocols]]
[[Category:Ethernet]]
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Английская Википедия:EtherSound - История изменений