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SDI Embedded +10db higher than it should
When outputting SDI embedded audio and feeding FCP bars/tone (-10db) to Digibeta or HDCAM. My levels are +10db higher than the 0 mark. In the past the drivers didn’t lock out the “core” audio. SDI audio was greatly affect when adjusting “Output Volume”. Now it seems the drivers has locked me out of it. Which is fine but my levels are radically out of spec. Is there a solution or work around? Please do a test to see if I’m crazy or not.
By the way I’ve already trash preference and repaired permissions in safe boot.
Thank YouMarcus
10.4.4
FCP 5.0.4
KONA 2 1.2 w/K-BOX
QT 7.0.4 -
17 Replies
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OPen up the Kona control panel and find the option in there to uncheck “lock input gain to unity”. THis should only effect input (which I think you are doing coming off of DigiBeta, or are you outputting TO digibeta?). Maybe this will help in your current situation.
Jeremy
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response:
“Open up the Kona control panel and find the option in there to uncheck ‘lock input gain to unity'”.reply:
Spoke w/ AJA Tech support and they said it would only affect incoming audio.
SDI audio incoming is right on but on output it is off +10db.Have you done a test? Curious about what’s happening on your system.
Thanks for the reply
Marcus
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Check this thread out from a few days ago
https://forums.creativecow.net/cgi-bin/new_read_post.cgi?forumid=98&postid=858124&pview=t#head
Peter McAuley
Axyz Edit
Toronto
G5 dual 2.0
4 gigs ram
10.4.3
FCP 5.03
QT 7.03
Kona 2 v1.1.4 with K Box
4 X 250 gig external F800 Lacie firewire drive
2 X 23″ Apple cinema display -
Do you have the kona set as your system outgoing sound preference? Can you hear your system sounds through the Kona? If this is true, then the volume that is currently set on your system sound will effect the volume that is outgoing to your KOna. To defeat this, turn off your kona as your system sound preference.
This article will help you:
https://www.aja.com/pdfs/KONA2_Audio_FAQ.pdf
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The KONA2 Audio FAQ pdf supplied by AJA is for the earlier drivers. My problem only pertains to the newest release. For your information my sound configuration is as follows.
System Pref. > Sound > Sound Effects >Play alerts and sound effects through: Line Out
System Pref. > Sound > Output> AJA Kona PCI Card > Setting for the Selected device: The selected device has no output controls
System Pref. > Sound > Output> Output Volume > muteAnd still my SDI embedded audio is +10db higher when outputting to Digibeta or even HD CAM.
Also by deselecting in the AJA Control Panel > Setup > Audio Setup : un-checking or checking “Lock Input Audio Gain to Unity”. Does not effect out going audio.If you are on the latest drivers for the Kona 2 and are on Tiger 10.4.4, please run at test. Would like to know if you are getting the same results.
Thank you sooo much for your help
Marcus
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For what it’s worth, I have always had this problem. I work at a post house and have audio coming in from lots of different sources, some of which are at the correct levels, some of which are at the +db level. The levels out that I have on the + side are at +8db even from Final Cut’s bars
To solve this problem and give me a bit more control on sound input and output, we put in a small mixer by Junger.
I used to correct this problem by simply going into Final Cut, making a movie out of the sequence if I needed to, opening that movie in the browser and lowering the audio by 8db.
I don’t know if this helps you or not but you can rest assured that you are not crazy. 🙂BTW, I am running the latest drivers for Kona with Tiger 10.4.4. I just ran a test and on the embedded audio out from Final Cut’s bars, it is still at a +8db.
Leigh
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Thank you so much for your reply. SDI embedded audio should not be off what so ever. This is really poor on AJA part. The previous drivers were not perfect but manageable. Currently having the drivers 8+db is pretty severe. My clients supply us with files all time for tape output. Having audio that’s off and compensating the levels, really compromises the integrity. I really hope more people look into this and report it to AJA.
Thank again
Marcus
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I agree. I guess I just got used to it because it was a problem with the Cinewave card that I had as well. I was happy when we got the Kona2 card and we could add in a mixer so I could adjust the input and output as needed.
Maybe someday, it will get fixed. I wonder if the Blackmagic card has the same problem?Leigh
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This is why I’m not quick to move to new drivers or OS’s very quickly. Sorry for your pain.
Peter McAuley
Axyz Edit
Toronto
G5 dual 2.0
4 gigs ram
10.4.3
FCP 5.03
QT 7.03
Kona 2 v1.1.4 with K Box
4 X 250 gig external F800 Lacie firewire drive
2 X 23″ Apple cinema display -
I’m not sure what the heck you guys are seeing. I don’t have a digibeta deck on hand, but I do have a DV50 deck (AJ-SD93). My output levels are dead nuts accurate through SDI embedded. I encourage you to go into your sound system preferences (again) and double check your settings. Here’s what I have:
Sound Effects Tab-> Play alerts and sound f/x through: Line out.
Output tab -> AJA Kona -> Make sure this is set at 67% (unity). you can see where it’s set if you hover your mouse over the blue volume slider on the bottom. This should be set to 67%.
i output -12 bars (which is FCPs default) -12 shows up in FCP -12 shows up on the deck. If I output -20 bars, FCP meters read -20, deck meters read -20. I am running os 10.4.2, QT 7.0.3 and Kona 1.2 drivers and latest firmware (from April 2005). It should be working for you guys, unless there’s some setting in your deck that you’re missing.
Jeremy
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