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Forum Index » Profile for b_dann_b » Messages posted by b_dann_b
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Live Sound » Line or Mic input » Go to message
Working this one out depends on what the DI is/what its doing. I'm going to use made up numbers here to provide you with some insight.

In general there are 3 common "levels" that you deal with (there are actually probably 4 but that's going to over complicate things).

They are Mic level, line level and speaker level. Each level uses a different voltage (using made up numbers):
mic level - 0.1V - 2v
line level - 4v
speaker level - 120v+

when you use the specific ports on a mixer they all aim to bring the signal you put in up to line level which is generally where the mixer works at within itself. When you plug a mic into a mic input on the mixer, because the mic only produces a small voltage a preamp attached to the other side of the socket on the mixer boosts the signal to line level. this boost is variable using the gain pot.

So in comes the DI. the DI does 2 things - converts the signal to a balanced signal (to reduce noise) and converts the voltage between the 3 types of levels depending on the DI in question (you do this using the pad buttons). So if you were to put a line level source into a DI and pad it once, it would bring it to mic level. If you put a speaker level and pad it twice, it would take it to mic level. If you put a mic into a DI and pad it, it would bring it below mic level (which is not something you would generally do).

(note that the above are random numbers just to explain the general workings).

So if you have line level coming out of your keyboard and you put it into a DI and pad it, it would be mic level and therefore best to plug it into Mic input. If you did not pad the signal it would be a line level voltage coming through the cable to the mixer. Whilst it may seem right to put it in the line socket on the mixer, it may not be the best way as your DI has balanced the signal and you are now plugging into an unbalanced socket.


Simple answer:
Pad you DI once. If your using headphone out, put the volume up to about 3/4 full and then plug into the mic/xlr socket and you'll be fine.

16.4.2 » 16.4.2 firmware update from 1.12 or below to 1.2 "Solution" » Go to message
Common issue i have as well on and off.

Most of the time closing the app fixes it. By closing i mean double click the home button to bring up the multi task menu at the bottom, then close the app entirely (not just exit the app by by pressing the home button).

Flaky wireless also causes this - make sure u use a router and not an ad hoc connection directly to the mac.
Depending on the router and the ios device versions, it sometimes helps to change the setting on the router to a specific wifi channel instead of leaving it on auto.
16.4.2 » 16.4.2 firmware update from 1.12 or below to 1.2 "Solution" » Go to message
Doug - good info, not a problem that i would have thought people would run into, but makes complete sense.

FYI - you can actually install a instance of OSX on a USB/firewire hdd and boot off that so you dont need to repartition your main hdd.

The steps a pretty much the same.
1. plug in USB HDD
2. insert OSX CD
3. hold the option key and then turn on machine
4. select the OSX disc to boot from
5. from within the install there is a menu option for the disk utilities
6. format/partition the USB HDD
7. continue installation and select the usb drive as the installation destination.

Once its installed, reboot the machine and hold the option key again and select the USB hdd to boot from.

I use this method for diagnostics. I have a USB hdd with a partition on it that has some tech tools. if ever my machine dies i can just plug the usb drive in a boot from that to diagnose the hdd in my mac.
Live Sound » NAMM 2014 » Go to message
presonus aviom compatible personal monitor system that links in with the AI hardware
Live Sound » Presonus Digimax FS for sale » Go to message
lol yeah i did see that one but i didnt want to get a warning from the admins about to many posts

would be good to have a second hand sales forum for people looking and selling second had presonus gear
Live Sound » Presonus Digimax FS for sale » Go to message
HI everyone,

in case anyone is interested i am selling my digimax FS units. Will ship internationally. Note that these are located in Australia.
Open to offers via ebay - just let me know that you've seen this post.

http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=191028866925
AudioBox VSL 1818 » Presonus Digimax FS for sale » Go to message
HI everyone,

in case anyone is interested i am selling my digimax FS units. Will ship internationally. Note that these are located in Australia.
Open to offers via ebay - just let me know that you've seen this post.

http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=191028866925
AudioBox VSL General Discussion » Presonus Digimax FS for sale » Go to message
HI everyone,

in case anyone is interested i am selling my digimax FS units. Will ship internationally. Note that these are located in Australia.
Open to offers via ebay - just let me know that you've seen this post.

http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=191028866925
16.4.2 » Smaart Room Analysis Wizard » Go to message
gadget69 wrote:If you look at it from the point of view that each and every one of those EQ bands is a tuned tank circuit that delays, causes phase differentials, and generally affects the relationship with the unaffected signal...each one does this differently...so, multiply this by 31 bands and you can REALLY screw up the sound with an EQ, this happens with PEQ's also but with a PEQ, you can get to the exact frequency, and adjust the width of the filter to only affect the frequencies that are necessary to accomplish the goal. With Geq's you can use one band to affect very Little of the spectrum or anything up to the whole frequency range,

This would require multiple Geq bands and even if you need to make a small cut to a very narrow frequency group, you wold likely need to use 2 or more Geq bands because it seems the problems are NEVER on the ISO center frequencies. If you doubt this, do a SMAART of the room and get the trace as flat as you can, not worrying about the small peaks and dips... now, take that same curve and try and duplicate it with the GEQ....now play something like Steely Dan or something that your familiar with and then turn the GEQ off and see what it sounds like, do the same with the Peq... It WILL be illuminating!


what he said
16.4.2 » Smaart Room Analysis Wizard » Go to message
Actually Michael, using the 31 band EQ will have a worse affect than the parametric.

Because each band has a set frequency and Q, using this will actually make it more difficult to shape the response smoothly. Instead you'll probably end up with small peaks or dips instead a smooth curve.

The parametric EQ allows you do make the changes you need to make exactly how you need to make them without destroying the sound.

You will find that in much bigger setups 31 band eqs and generally used for foldback speakers only. Everything else (in ears, FOH) they will try to use fully parametric.
StudioLive General Discussion » Smaart on 16.4.2 - trace line not appearing » Go to message
found this issue... dodgy cable at the other end of the multicore
StudioLive General Discussion » Smaart on 16.4.2 - trace line not appearing » Go to message
Hi Guys,

had a funny one yesterday. Running the smaart analysis in basic and advanced from laptop (tried both) and i hear the pink noise but when the tool goes to show the graph (white line) i see a few dots as if it is starting to trace and then it disappears completely so i cant actually see the response at all.

Running UC version prior to the latest. Was working fine on tuesday, nothing has changed. Also tried from the ipad and it doesn't show there either.

Any thoughts? Any one seen this before?

Have rebooted everything and zeroed the board.
16.4.2 » Control trim using virtual studiolive » Go to message
sorry mate, not possible. the trim knobs are analog, not digital.

the only potential work around (and not ideal) is to use the compressor gain makeup.
Live Sound » Scene Recall Usage » Go to message
i setup pretty much the same as gadget except after Bass i do all other DI based stuff i.e. keys.

Drums->Drum overheads->Bass->keys (if i have them)->Guitars->Other stuff (Sax, flute)->Vox->FX

For Aux Sends i do (from aux 1 to 4 on the SL) Left of stage->Centre->Right of stage->Drum fill.
Note that left of stage is when i am looking at it from the mixing console, not when looking at the audience.
StudioLive General Discussion » Novice Ethernet/CAT5/Dante questions... » Go to message
hsfinlayson,

unfortunately from what we know about the Presonus offerings (they have talked about Dante) the behringer wont work directly with the desk. It uses AES50 which is another protocol. Unless presonus come out with an expansion card that supports both Dante and AES50, you'll have to get a Dante compatible stage box.

One thing that may be on the plus side is that the Audio Video Bridge (AVB) protocol which aims to standardize all of this stuff is supposedly going to be compatible with the Dante protocol. Given Presonus is part of the AVB alliance, there's a good chance that their Dante card will support AVB compatible products when AVB becomes a/the standard.

This a list of manufacturers that are part of the alliance:
http://www.avnu.org/about_us/our_members

this site has a list of currently available Dante stageboxes:
http://dev.audinate.com/kb/product_catalogue/webhelp/

The thing with the Behringer stage box is if you buy 2 of them, you can use one at either end independant of the mixer, but they are like $1200 a piece - at thats cheap from what i've seen.
 
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