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Old 11-22-2018, 10:52 PM   #121
mschnell
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Quote:
Originally Posted by pipelineaudio View Post
Has anyone got any Dante numbers? Dying to see them!
"Dante" is just a protocol and does not provide any latency of it's own. With a GBit Ethernet transfer medium, the transfer time itself should be neglectable.

I suppose for useful Dante latency numbers in a given situation, you would need to specify the device or software at either end of the Dante link.

-Michael
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Old 12-02-2018, 10:01 PM   #122
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Default Latency

I have an apollo twin solo connected to a macmini. I am having a bad latency response. I however have zero latency problems when using garage band or presonus. What is the deal with reaper?
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Old 12-02-2018, 10:42 PM   #123
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Reaper itself does not introduce any considerable latency. but it will set the parameters of the audio device according to what you choose in the preferences, and it can host plugins, that do introduce latency.

-Michael
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Old 12-02-2018, 10:46 PM   #124
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I have an apollo twin solo connected to a macmini. I am having a bad latency response. I however have zero latency problems when using garage band or presonus. What is the deal with reaper?
It makes sense to discuss the details in the Mac forum ... here it‘s a bit off-topic.

https://forum.cockos.com/forumdisplay.php?f=34

I bet, it‘s just a matter of the correct settings in Reaper.

For my old Tascam US-122MkII for example I needed the optional setting „Ignore running change notifications“.

PS: Interestingly I forgot to deactivate this setting after I switched to my new Presonus Quantum 2 thunderbolt interface and it worked like a charm, so I kept it switched on.
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Old 12-02-2018, 11:34 PM   #125
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Thanks for the info.
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Old 11-19-2020, 10:29 AM   #126
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Default This Link is DEAD - http://www.centrance.com/downloads/ltu

THis link is DEAD - http://www.centrance.com/downloads/ltu


Quote:
Originally Posted by pipelineaudio View Post
Since this comes up so much I thought I'd make a sticky and hopefully that will help for buying cards and such

If you want to help, download the Latency Test Utility from CEntrance

http://www.centrance.com/downloads/ltu

Remember to turn off any monitoring so as not to skew the results. Please also check to see if the value changes every time you hit test. State Stable/Unstable according to whether it changes or not

Here's the list, Ill add to it as it grows:

LTU results(in msec) @44.1khz
32/64/128/256 sample buffer size

**NA/12.56/15.46/25.54 - Stable Echo Audiofire 12

**NA/ 7.35/13.15/24.76 - Stable Egosys Wami Rack PCI

**NA/***NA/18.44/27.14 - Unstable Line6 KB37 *

**NA/ 3.06/***NA/***NA - Stable Maudio Delta 44 PCI

**NA/ 3.20/ 6.10/11.88 - Stable Maudio Delta TDIF PCI

**NA/ 5.06/ 7.91/13.72 - stable within .05 msec M-Audio Fast Track Ultra USB

2.04/ 3.85/ 6.76/12.54 - Stable MOTU 896 (measuring digital I/O)
3.79/ 5.24/ 8.14/13.95 - Stable MOTU 896 (measuring analog I/O)

2.49ms/ 3.95ms/ 8.46ms/ 14.26 ms - Stable MOTU traveler driver rev 3.6.7.4 (measuring analog I/O)

3.61/ 5.06/ 7.96/13.76 - Stable RME Multiface

N/A / 6.10/ 9.00/14.81 - Stable RME FF800

* The line6 drivers are acting very screwy and reporting thruput without anything plugged in. In 16 bit mode the measurment appears accurate. In 24 bit mode, there is some internal passthru fudging the numbers
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Old 11-19-2020, 10:32 AM   #127
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Default This Link is DEAD - http://www.centrance.com/downloads/ltu

THis sticky is 10 years old and the link is dead. Come on Cockos...do you monitor your own forums any more? THis is re-dick-u-lous.





Quote:
Originally Posted by pipelineaudio View Post
Since this comes up so much I thought I'd make a sticky and hopefully that will help for buying cards and such

If you want to help, download the Latency Test Utility from CEntrance

http://www.centrance.com/downloads/ltu

Remember to turn off any monitoring so as not to skew the results. Please also check to see if the value changes every time you hit test. State Stable/Unstable according to whether it changes or not

Here's the list, Ill add to it as it grows:

LTU results(in msec) @44.1khz
32/64/128/256 sample buffer size

**NA/12.56/15.46/25.54 - Stable Echo Audiofire 12

**NA/ 7.35/13.15/24.76 - Stable Egosys Wami Rack PCI

**NA/***NA/18.44/27.14 - Unstable Line6 KB37 *

**NA/ 3.06/***NA/***NA - Stable Maudio Delta 44 PCI

**NA/ 3.20/ 6.10/11.88 - Stable Maudio Delta TDIF PCI

**NA/ 5.06/ 7.91/13.72 - stable within .05 msec M-Audio Fast Track Ultra USB

2.04/ 3.85/ 6.76/12.54 - Stable MOTU 896 (measuring digital I/O)
3.79/ 5.24/ 8.14/13.95 - Stable MOTU 896 (measuring analog I/O)

2.49ms/ 3.95ms/ 8.46ms/ 14.26 ms - Stable MOTU traveler driver rev 3.6.7.4 (measuring analog I/O)

3.61/ 5.06/ 7.96/13.76 - Stable RME Multiface

N/A / 6.10/ 9.00/14.81 - Stable RME FF800

* The line6 drivers are acting very screwy and reporting thruput without anything plugged in. In 16 bit mode the measurment appears accurate. In 24 bit mode, there is some internal passthru fudging the numbers
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Old 11-19-2020, 11:45 AM   #128
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Quote:
Originally Posted by bsac View Post
THis sticky is 10 years old and the link is dead. Come on Cockos...do you monitor your own forums any more? THis is re-dick-u-lous.
If they had to check if every link posted by a forum member is up to date I'm afraid they'd have no time to develop Reaper at all.

Looks like Oblique utility is pretty current:

https://oblique-audio.com/rtl-utility.php
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Old 08-15-2021, 04:00 AM   #129
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Quote:
Originally Posted by mschnell View Post
"Dante" is just a protocol and does not provide any latency of it's own. With a GBit Ethernet transfer medium, the transfer time itself should be neglectable.

I suppose for useful Dante latency numbers in a given situation, you would need to specify the device or software at either end of the Dante link.

-Michael
The DANTE network latency is determined by

a) The DANTE hardware boards present in the same DANTE Network-Adress-Space
b) The Router used
c) The device with the highest latency compared to the other devices determines the latency that all devices will adjust to

Example:

Board 1: 250 µs
Borad 2: 250 µs
Board 3: 500 µs
Board 4: 1 ms

--> Negotiated Network Latency Devices: 1 ms

I currently run:

• RedNet PCIeR Dante PCIe-Card: 250 µs
• Aurora(n) Dante: 250 µs

• Cisco SG350-P Switch

For the switch I have no number in memory, but it - of course adds some processing latency - but compared to the 250 µs negligible.

PCIe-Cards provide the lowest device latency currently possible and help to use lower buffer sizes in the DAW or higher samplerates.

I am testing live setup with 192k and it does do well even on a 10 year old Xeon. Would only be Ableton Lives Audio Engine enhanced in efficiency - Version 11 is a disappointment here, especially compared to LPX 10.5 and 10.6 and REAPER.



cheers
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