Korg Forums Forum Index Korg Forums
A forum for Korg product users and musicians around the world.
Moderated Independently.
Owned by Irish Acts Recording Studio & hosted by KORG USA
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

RX noise level issue??

 
Post new topic   Reply to topic    Korg Forums Forum Index -> KORG SV-1
View previous topic :: View next topic  
Author Message
engineerjoel
Full Member


Joined: 10 Jan 2013
Posts: 133

PostPosted: Wed Oct 07, 2015 6:24 pm    Post subject: RX noise level issue?? Reply with quote

When I trigger patches from the SV1 using an external Midi controller, the RX noise level for each patch is way too over exaggerated—very clankety-clankety sounding

But, when I play the same patches directly from the SV1’s keyboard the RX noise is almost non-existent. What would be causing this phenomenon?

thanks,
Back to top
View user's profile Send private message
oy5t3h
Full Member


Joined: 27 Sep 2011
Posts: 136

PostPosted: Thu Oct 08, 2015 9:33 am    Post subject: Reply with quote

I suspect that there may be something odd with the velocity being sent from your MIDI controller.

I think that the RX noise is constant, but the actual note gets louder or softer with the received velocity. So if your MIDI controller is sending very low velocity values, then that would perhaps explain the problem?

Can you capture the MIDI data being sent and check the velocity somehow?
_________________
PaulR
Korg SV-1 88
Kurzweil PC361
Back to top
View user's profile Send private message
alexbbrown



Joined: 28 Sep 2015
Posts: 16

PostPosted: Wed Oct 21, 2015 5:58 pm    Post subject: Reply with quote

what happens if you set touch sensitivity to 8, do you get the same issue?
Back to top
View user's profile Send private message
la_saucisse



Joined: 22 Nov 2015
Posts: 5

PostPosted: Sun Nov 22, 2015 4:37 pm    Post subject: Reply with quote

hello,

(excuse my poor english, I'm french)

I have the same problem, and recorded a video with a camera for a french forum : very well mean that RX noise is stronger while playing with midi on a MP4 keyboard :

https://www.youtube.com/watch?v=kDrOGT7_3UQ

I alternate SV-1 (right hand) and MP4 (left hand) trying to have the same dynamic.

1st series: the noise to a minimum volume (-5): no RX noise
2nd series: the average noise volume (0): very slight RX noise with the SV-1 on release, light using the mp4
3rd series: maximum noise volume (5): slight noise with the SV-1, loud on the MP4

I end with a single note played pianissimo.


Last edited by la_saucisse on Sun Nov 22, 2015 4:44 pm; edited 1 time in total
Back to top
View user's profile Send private message
la_saucisse



Joined: 22 Nov 2015
Posts: 5

PostPosted: Sun Nov 22, 2015 4:40 pm    Post subject: Reply with quote

alexbbrown wrote:
what happens if you set touch sensitivity to 8, do you get the same issue?

I tried : yes
Back to top
View user's profile Send private message
la_saucisse



Joined: 22 Nov 2015
Posts: 5

PostPosted: Sun Nov 22, 2015 4:43 pm    Post subject: Reply with quote

another detail :
- on press : normal RX noise with velocity
- on release : louder RX noise, no velocity

It seems to be an issue on key release via MIDI only.
Back to top
View user's profile Send private message
oy5t3h
Full Member


Joined: 27 Sep 2011
Posts: 136

PostPosted: Mon Nov 23, 2015 9:43 am    Post subject: Reply with quote

la_saucisse wrote:
another detail :
- on press : normal RX noise with velocity
- on release : louder RX noise, no velocity

It seems to be an issue on key release via MIDI only.


Can you use a MIDI monitor program on a PC to see what the SV-1 produces when you release a key, versus what the MP4 produces?

The Note On and Note Off message within the MIDI standard both have a velocity component. It's ignored by most keyboards, but it sounds like the SV-1 is using that value to determine the volume of the release RX noises. Probably the SV-1 is producing low values of release velocity, whereas your MP4 is producing high values for release velocity?
_________________
PaulR
Korg SV-1 88
Kurzweil PC361
Back to top
View user's profile Send private message
la_saucisse



Joined: 22 Nov 2015
Posts: 5

PostPosted: Mon Nov 23, 2015 9:09 pm    Post subject: Reply with quote

I could try, but I don't know any MIDI monitor program able to do this.
Have you a suggestion for Win7 ? (freeware or open source, please Wink )
Back to top
View user's profile Send private message
la_saucisse



Joined: 22 Nov 2015
Posts: 5

PostPosted: Mon Nov 23, 2015 9:26 pm    Post subject: Reply with quote

I founded this :
http://www.forum-pianoteq.com/viewtopic.php?id=384
Quote:
I found that there are no Yamaha, Kawai or CASIO modells that transmit or receive Noteoff Velocity.


It seems you're right : my MP4 must send wrong note off values (probably 64, as many keyboards) and it must be louder than the real value)

well... never mind, I won't serve my SV-1 as an expander anymore
Back to top
View user's profile Send private message
oy5t3h
Full Member


Joined: 27 Sep 2011
Posts: 136

PostPosted: Tue Nov 24, 2015 10:05 am    Post subject: Reply with quote

la_saucisse wrote:
I could try, but I don't know any MIDI monitor program able to do this.
Have you a suggestion for Win7 ? (freeware or open source, please Wink )


MIDI-OX is free, but they do ask for a donation http://www.midiox.com/
_________________
PaulR
Korg SV-1 88
Kurzweil PC361
Back to top
View user's profile Send private message
Mojo Bone



Joined: 25 Feb 2016
Posts: 6
Location: Up in Indiana, where the tall corn grows

PostPosted: Thu Feb 25, 2016 3:10 am    Post subject: Reply with quote

You could also record MIDI into any DAW/sequencer and open up the event editor.
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    Korg Forums Forum Index -> KORG SV-1 All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group