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disk light flashing

 
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leetheedge
Junior Member


Joined: 01 Sep 2011
Posts: 87
Location: england

PostPosted: Thu Apr 19, 2018 9:34 pm    Post subject: disk light flashing Reply with quote

why does the disk light flash.it seems to be only on a piano/keyboard sounds..ive just got the kronos today so I'm still pretty new to it..cheers in advance
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IAA
Full Member


Joined: 10 Feb 2013
Posts: 131

PostPosted: Thu Apr 19, 2018 9:37 pm    Post subject: Reply with quote

It flashes when the SSD is being read. So for reading and streaming samples for HD programmes etc.
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leetheedge
Junior Member


Joined: 01 Sep 2011
Posts: 87
Location: england

PostPosted: Thu Apr 19, 2018 10:00 pm    Post subject: Reply with quote

I don't understand.why only on keyboard category thou
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Synthee
Senior Member


Joined: 21 Apr 2013
Posts: 298
Location: Sweden

PostPosted: Thu Apr 19, 2018 10:07 pm    Post subject: Reply with quote

leetheedge wrote:
I don't understand.why only on keyboard category thou

It flashes when it streaming big audiofiles in realtime from the SSD disk. So only on sounds with heavy samples.
When you play the synth engines its the processor that makes the sound, so then its no need for streaming samples.
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Korg Kronos 2 88 ; The River ; Cubase 10.5 Pro ; PC Win 10
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leetheedge
Junior Member


Joined: 01 Sep 2011
Posts: 87
Location: england

PostPosted: Fri Apr 20, 2018 12:10 am    Post subject: Reply with quote

ok thanks a lot for the answer guys.. as long as its not a fault( phew ) Wink
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19naia
Platinum Member


Joined: 29 Nov 2012
Posts: 1216

PostPosted: Fri Apr 20, 2018 12:26 am    Post subject: Reply with quote

Kronos has HD-1 and SGX synth engines that use samples.
SGX is the one with the most GB intensive sample sets per sound, and the particular sounds are the premium Pianos. The Premium Pianos use more memory per sample set than the total or available RAM memory can provide, so those sample sets are designed to stream from SSD-disk.
Other sample based sounds can be low byte users and read from RAM which is not part of disk.

There are custom setups where you can get RAM samples to stream from disk.

Disk has starting at 30gb to work with while RAM has 3gb maximum to work with.
The top Premium Piano can have around 5gb of samples behind the sound. they will have several samples per each key and if you look at “Velocity layering” in HD-1, you will see they have up to 8 velocity layered samples. SGX may have more layers or at least 8. I think SGX goes farther by having different samples per each of the keys in a single piano program and likely multiple sample unique samples per each key. A true velocity layered multisample.

Hit the key soft(soft velocity) and that is one sample you hear, and then hit it hard(hard velocity) then it becomes another sample you hear. And all the velocities inbetween the softest and hardest key strokes. At least 8 different samples for 8 different velocities of key strike.

I think the disk light was put there just for SGX engine when the large sample set pianos became common and the SSD-disk made it possible to move away from low GB RAM. RAM has been the sample base for advanced keyboards for a very long time and it is still very hard to beat for speed of response.
RAM has limited memory. Even in the highest end laptops, getting RAM beyond 16gb is no sure bet. You cannot get more than 4 into any Kronos and only 3 is available for users.
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leetheedge
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Joined: 01 Sep 2011
Posts: 87
Location: england

PostPosted: Fri Apr 20, 2018 1:43 am    Post subject: Reply with quote

thanks for a brilliant explanation Wink
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voip
Platinum Member


Joined: 27 Nov 2014
Posts: 3758

PostPosted: Fri Apr 20, 2018 8:52 am    Post subject: Reply with quote

Also, never turn the Kronos off whilst the disk access LED is lit, especially after doing any disk write operations, like saving Programs, Combis, Songs, or Global settings, since the SSD may still be in the process of being written to.
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