Master Clock - Revision history

Andy: /* Hardware */

2026-02-04T21:21:40Z

Hardware

← Older revision		Revision as of 22:21, 4 February 2026
Line 19:		Line 19:
	==Hardware==		==Hardware==
	<div class="rightbox">[[Media:Isochrone Trinity Master Clock Manual.pdf\|'''User Manual''']]</div>		<div class="rightbox">[[Media:Isochrone Trinity Master Clock Manual.pdf\|'''User Manual''']]</div>
	[[~~File~~:Conectivity-trinity-front.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Front Panel)]]		[[Image:Conectivity-trinity-front.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Front Panel)]]
	[[Image:Conectivity-trinity-back.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Rear Panel)]]		[[Image:Conectivity-trinity-back.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Rear Panel)]]
	New Adelphi uses an [http://en.antelopeaudio.com/products/isochrone-trinity/ Antelope Isochrone Trinity] master clock. This unit provides three audio clock outputs, three HD video clock outputs and four SD clock outputs.		New Adelphi uses an [http://en.antelopeaudio.com/products/isochrone-trinity/ Antelope Isochrone Trinity] master clock. This unit provides three audio clock outputs, three HD video clock outputs and four SD clock outputs.

Andy: /* Hardware */

2026-02-04T21:21:24Z

Hardware

← Older revision		Revision as of 22:21, 4 February 2026
Line 19:		Line 19:
	==Hardware==		==Hardware==
	<div class="rightbox">[[Media:Isochrone Trinity Master Clock Manual.pdf\|'''User Manual''']]</div>		<div class="rightbox">[[Media:Isochrone Trinity Master Clock Manual.pdf\|'''User Manual''']]</div>
	[[~~Image~~:Conectivity-trinity-front.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Front Panel)]]		[[File:Conectivity-trinity-front.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Front Panel)]]
	[[Image:Conectivity-trinity-back.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Rear Panel)]]		[[Image:Conectivity-trinity-back.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Rear Panel)]]
	New Adelphi uses an [http://en.antelopeaudio.com/products/isochrone-trinity/ Antelope Isochrone Trinity] master clock. This unit provides three audio clock outputs, three HD video clock outputs and four SD clock outputs.		New Adelphi uses an [http://en.antelopeaudio.com/products/isochrone-trinity/ Antelope Isochrone Trinity] master clock. This unit provides three audio clock outputs, three HD video clock outputs and four SD clock outputs.

Andy at 21:21, 4 February 2026

2026-02-04T21:21:06Z

← Older revision		Revision as of 22:21, 4 February 2026
Line 19:		Line 19:
	==Hardware==		==Hardware==
	<div class="rightbox">[[Media:Isochrone Trinity Master Clock Manual.pdf\|'''User Manual''']]</div>		<div class="rightbox">[[Media:Isochrone Trinity Master Clock Manual.pdf\|'''User Manual''']]</div>
	[[~~Media~~:Conectivity-trinity-front.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Front Panel)]]		[[Image:Conectivity-trinity-front.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Front Panel)]]
	[[Image:Conectivity-trinity-back.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Rear Panel)]]		[[Image:Conectivity-trinity-back.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Rear Panel)]]
	New Adelphi uses an [http://en.antelopeaudio.com/products/isochrone-trinity/ Antelope Isochrone Trinity] master clock. This unit provides three audio clock outputs, three HD video clock outputs and four SD clock outputs.		New Adelphi uses an [http://en.antelopeaudio.com/products/isochrone-trinity/ Antelope Isochrone Trinity] master clock. This unit provides three audio clock outputs, three HD video clock outputs and four SD clock outputs.

Andy: /* Hardware */

2026-02-04T21:20:50Z

Hardware

← Older revision		Revision as of 22:20, 4 February 2026
Line 19:		Line 19:
	==Hardware==		==Hardware==
	<div class="rightbox">[[Media:Isochrone Trinity Master Clock Manual.pdf\|'''User Manual''']]</div>		<div class="rightbox">[[Media:Isochrone Trinity Master Clock Manual.pdf\|'''User Manual''']]</div>
	[[~~Image~~:Conectivity-trinity-front.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Front Panel)]]		[[Media:Conectivity-trinity-front.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Front Panel)]]
	[[Image:Conectivity-trinity-back.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Rear Panel)]]		[[Image:Conectivity-trinity-back.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Rear Panel)]]
	New Adelphi uses an [http://en.antelopeaudio.com/products/isochrone-trinity/ Antelope Isochrone Trinity] master clock. This unit provides three audio clock outputs, three HD video clock outputs and four SD clock outputs.		New Adelphi uses an [http://en.antelopeaudio.com/products/isochrone-trinity/ Antelope Isochrone Trinity] master clock. This unit provides three audio clock outputs, three HD video clock outputs and four SD clock outputs.

Andy at 11:31, 16 May 2018

2018-05-16T11:31:36Z

← Older revision		Revision as of 12:31, 16 May 2018
Line 1:		Line 1:
	~~<div class="rightbox">[[Media:Isochrone Trinity Master Clock Manual.pdf\|'''User Manual''']]</div>~~

	The master clock allows devices that require accurate timing to be synchronised. The clock signal is distributed through the [[Facility Panels]] on [[BNC]] or [[Fibre]] depending upon the transmission distance. The same clock signal is also carried by the [[Dante]] protocol over ethernet, providing timing pulses to all Dante / AES67 devices on the [[Facility Panel Network\|network]].		The master clock allows devices that require accurate timing to be synchronised. The clock signal is distributed through the [[Facility Panels]] on [[BNC]] or [[Fibre]] depending upon the transmission distance. The same clock signal is also carried by the [[Dante]] protocol over ethernet, providing timing pulses to all Dante / AES67 devices on the [[Facility Panel Network\|network]].

Line 20:		Line 18:

	==Hardware==		==Hardware==
			<div class="rightbox">[[Media:Isochrone Trinity Master Clock Manual.pdf\|'''User Manual''']]</div>
	[[Image:Conectivity-trinity-front.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Front Panel)]]		[[Image:Conectivity-trinity-front.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Front Panel)]]
	[[Image:Conectivity-trinity-back.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Rear Panel)]]		[[Image:Conectivity-trinity-back.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Rear Panel)]]
	New Adelphi uses an [http://en.antelopeaudio.com/products/isochrone-trinity/ Antelope Isochrone Trinity] master clock. This unit provides three audio clock outputs, three HD video clock outputs and four SD clock outputs.		New Adelphi uses an [http://en.antelopeaudio.com/products/isochrone-trinity/ Antelope Isochrone Trinity] master clock. This unit provides three audio clock outputs, three HD video clock outputs and four SD clock outputs.

A.j.davison at 08:52, 16 May 2018

2018-05-16T08:52:08Z

← Older revision		Revision as of 09:52, 16 May 2018
Line 1:		Line 1:
	<div class="rightbox">[[Media:Isochrone Trinity Master Clock Manual.pdf\|'''User Manual''']]</div>		<div class="rightbox">[[Media:Isochrone Trinity Master Clock Manual.pdf\|'''User Manual''']]</div>

	~~[[Image:Conectivity-trinity-front.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Front Panel)]]~~
	~~[[Image:Conectivity-trinity-back.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Rear Panel)]]~~
	The master clock allows devices that require accurate timing to be synchronised. The clock signal is distributed through the [[Facility Panels]] on [[BNC]] or [[Fibre]] depending upon the transmission distance. The same clock signal is also carried by the [[Dante]] protocol over ethernet, providing timing pulses to all Dante / AES67 devices on the [[Facility Panel Network\|network]].		The master clock allows devices that require accurate timing to be synchronised. The clock signal is distributed through the [[Facility Panels]] on [[BNC]] or [[Fibre]] depending upon the transmission distance. The same clock signal is also carried by the [[Dante]] protocol over ethernet, providing timing pulses to all Dante / AES67 devices on the [[Facility Panel Network\|network]].

	Clock synchronisation is critically important when pairing audio and video, or when using multiple audio or video devices together. If devices do not receive accurate clock signals they will ''[https://en.wikipedia.org/wiki/Clock_drift drift],'' causing artefacts and communication problems.		Clock synchronisation is critically important when pairing audio and video, or when using multiple audio or video devices together. If devices do not receive accurate clock signals they will ''[https://en.wikipedia.org/wiki/Clock_drift drift],'' causing artefacts and communication problems.

	New Adelphi uses an [http://en.antelopeaudio.com/products/isochrone-trinity/ Antelope Isochrone Trinity] master clock. This unit provides three audio clock outputs, three HD video clock outputs and four SD clock outputs.

	==Rates==		==Rates==
Line 21:		Line 18:

	There are instructions provided on this wiki which describe [[Using_the_RME_Audio_Interfaces\|how to change sample rates]] of the equipment provided in our studios.		There are instructions provided on this wiki which describe [[Using_the_RME_Audio_Interfaces\|how to change sample rates]] of the equipment provided in our studios.

			==Hardware==
			[[Image:Conectivity-trinity-front.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Front Panel)]]
			[[Image:Conectivity-trinity-back.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Rear Panel)]]
			New Adelphi uses an [http://en.antelopeaudio.com/products/isochrone-trinity/ Antelope Isochrone Trinity] master clock. This unit provides three audio clock outputs, three HD video clock outputs and four SD clock outputs.

A.j.davison at 08:50, 16 May 2018

2018-05-16T08:50:09Z

← Older revision		Revision as of 09:50, 16 May 2018
Line 1:		Line 1:
	<div class="rightbox">[[Media:Isochrone Trinity Master Clock Manual.pdf\|'''User Manual''']]</div>		<div class="rightbox">[[Media:Isochrone Trinity Master Clock Manual.pdf\|'''User Manual''']]</div>

			[[Image:Conectivity-trinity-front.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Front Panel)]]
			[[Image:Conectivity-trinity-back.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Rear Panel)]]
	The master clock allows devices that require accurate timing to be synchronised. The clock signal is distributed through the [[Facility Panels]] on [[BNC]] or [[Fibre]] depending upon the transmission distance. The same clock signal is also carried by the [[Dante]] protocol over ethernet, providing timing pulses to all Dante / AES67 devices on the [[Facility Panel Network\|network]].		The master clock allows devices that require accurate timing to be synchronised. The clock signal is distributed through the [[Facility Panels]] on [[BNC]] or [[Fibre]] depending upon the transmission distance. The same clock signal is also carried by the [[Dante]] protocol over ethernet, providing timing pulses to all Dante / AES67 devices on the [[Facility Panel Network\|network]].

	Clock synchronisation is critically important when pairing audio and video, or when using multiple audio or video devices together. If devices do not receive accurate clock signals they will ''[https://en.wikipedia.org/wiki/Clock_drift drift],'' causing artefacts and communication problems.		Clock synchronisation is critically important when pairing audio and video, or when using multiple audio or video devices together. If devices do not receive accurate clock signals they will ''[https://en.wikipedia.org/wiki/Clock_drift drift],'' causing artefacts and communication problems.

			New Adelphi uses an [http://en.antelopeaudio.com/products/isochrone-trinity/ Antelope Isochrone Trinity] master clock. This unit provides three audio clock outputs, three HD video clock outputs and four SD clock outputs.

	==Rates==		==Rates==
Line 17:		Line 21:

	There are instructions provided on this wiki which describe [[Using_the_RME_Audio_Interfaces\|how to change sample rates]] of the equipment provided in our studios.		There are instructions provided on this wiki which describe [[Using_the_RME_Audio_Interfaces\|how to change sample rates]] of the equipment provided in our studios.

	~~==Clocking==~~
	Devices can be clocked locally or synchronised to a high definition master clock which ensures every device receives the same timing pulse. This can be used to ensure a transmission 'lock' can be maintained between digital devices and is especially critical when working with audio for video content.

	~~==Hardware==~~
	~~[[Image:Conectivity-trinity-front.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Front Panel)]]~~
	~~[[Image:Conectivity-trinity-back.jpg\|thumb\|400px\|Isochrone Trinity Master Clock (Rear Panel)]]~~

	New Adelphi uses an [http://en.antelopeaudio.com/products/isochrone-trinity/ Antelope Isochrone Trinity] master clock. This unit provides three audio clock outputs, three HD video clock outputs and four SD clock outputs.

A.j.davison: /* Clocking Rates for Recording */

2018-05-16T08:41:56Z

Clocking Rates for Recording

← Older revision		Revision as of 09:41, 16 May 2018
Line 13:		Line 13:
	The house clock rates cannot be changed. If you require different clock rates, you must use standalone clocking generated by a local device as the master.		The house clock rates cannot be changed. If you require different clock rates, you must use standalone clocking generated by a local device as the master.

	===Clocking Rates ~~for Recording~~===		===Recommended Clocking Rates===
	It is recommended that 48kHz be used in preference to 44.1kHz for audio recording <ref>Audio Engineering Society, Inc., ''AES recommended practice for professional digital audio - Preferred sampling frequencies for applications employing pulse-code modulation'' (Audio Engineering Society, 2008) - AES5-2008</ref>, as this provides the greatest degree of compatibility between hardware and the latest audio format standards (eg. [[Blu-ray]] and [[Dolby Atmos]]) and can be easily down-converted to 44.1kHz for CD delivery. However, the [[Recording Studios\|recording studios]] each default to local 44.1kHz clocking for historical reasons. When producing audio recordings to be used with video, or using the [[Facility Panel Network#Dante\|Dante]] protocol to move audio between devices or facilities, a sampling rate of 48kHz '''must''' be used.		It is recommended that 48kHz be used in preference to 44.1kHz for audio recording <ref>Audio Engineering Society, Inc., ''AES recommended practice for professional digital audio - Preferred sampling frequencies for applications employing pulse-code modulation'' (Audio Engineering Society, 2008) - AES5-2008</ref>, as this provides the greatest degree of compatibility between hardware and the latest audio format standards (eg. [[Blu-ray]] and [[Dolby Atmos]]) and can be easily down-converted to 44.1kHz for CD delivery. However, the [[Recording Studios\|recording studios]] each default to local 44.1kHz clocking for historical reasons. When producing audio recordings to be used with video, or using the [[Facility Panel Network#Dante\|Dante]] protocol to move audio between devices or facilities, a sampling rate of 48kHz '''must''' be used.

A.j.davison: /* Rates */

2018-05-16T08:41:33Z

Rates

← Older revision		Revision as of 09:41, 16 May 2018
Line 13:		Line 13:
	The house clock rates cannot be changed. If you require different clock rates, you must use standalone clocking generated by a local device as the master.		The house clock rates cannot be changed. If you require different clock rates, you must use standalone clocking generated by a local device as the master.

	It is recommended that 48kHz be used in preference to 44.1kHz for audio recording <ref>Audio Engineering Society, Inc., ''AES recommended practice for professional digital audio - Preferred sampling frequencies for applications employing pulse-code modulation'' (Audio Engineering Society, 2008) - AES5-2008</ref>, as this provides the greatest degree of compatibility between hardware and the latest audio format standards (eg. [[Blu-ray]] and [[Dolby Atmos]]) and can be easily down-converted to 44.1kHz for CD delivery. However, the [[Recording Studios\|recording studios]] each default to local 44.1kHz clocking for historical reasons. When producing audio recordings to be used with video, or using the [[Facility Panel Network#Dante\|Dante]] protocol to move audio between devices, a sampling rate of 48kHz '''must''' be used.		===Clocking Rates for Recording===
			It is recommended that 48kHz be used in preference to 44.1kHz for audio recording <ref>Audio Engineering Society, Inc., ''AES recommended practice for professional digital audio - Preferred sampling frequencies for applications employing pulse-code modulation'' (Audio Engineering Society, 2008) - AES5-2008</ref>, as this provides the greatest degree of compatibility between hardware and the latest audio format standards (eg. [[Blu-ray]] and [[Dolby Atmos]]) and can be easily down-converted to 44.1kHz for CD delivery. However, the [[Recording Studios\|recording studios]] each default to local 44.1kHz clocking for historical reasons. When producing audio recordings to be used with video, or using the [[Facility Panel Network#Dante\|Dante]] protocol to move audio between devices or facilities, a sampling rate of 48kHz '''must''' be used.

	There are instructions provided on this wiki which describe [[Using_the_RME_Audio_Interfaces\|how to change sample rates]] of the equipment provided in our studios.		There are instructions provided on this wiki which describe [[Using_the_RME_Audio_Interfaces\|how to change sample rates]] of the equipment provided in our studios.

A.j.davison: /* Rates */

2018-05-16T08:38:40Z

Rates

← Older revision		Revision as of 09:38, 16 May 2018
Line 6:		Line 6:

	==Rates==		==Rates==
	The clock rates have been chosen to provide the greatest degree of interoperability between devices according to standards set by the [http://www.aes.org/ ~~AES~~].		The clock rates have been chosen to provide the greatest degree of interoperability between devices according to standards set by the [http://www.aes.org/ Audio Engineering Society].

	* Audio clock rate: '''48kHz'''		* Audio clock rate: '''48kHz'''