Edirol UA-25 EX Popping Noise Probelm Help!!!!!

Hi there to all Cakewalk people.

Why does my Edirol ua-25 EX makes a popping noise? It makes a popping noise while I'm not doing any thing and also while I'm playing audio. I play some songs in windows media player and it pops. I use Sonar Home Studio XL 6.2.2 and it pops. I use Propellerhead Reason 4.0.1 and it pops. 

I bought this audio interface used from a music retail, so it's not brand new but it's only a year and a half old since it's 2008 model and comes with Sonar LE 6. I download the latest drive and installed it but still makes a popping noise. I tried adjusting the buffer size in Sonar, Reason and the Ua-25 EX and nothing change. I have my Sonar Home Studio in Asio mode and I have my Reason 4 in Asio mode. I even tried changing the I/O Buffer Size (KB) in Sonar Home Studio 6 XL and nothing change. I even restarted the computer several times and still noting change. still makes a popping noise though my speakers. I plug in my head phones into the interface and I can hear a popping noise too. so it's diffenilty not my speakers or head phones. 

I even adjust all of the switches on the back of the interface from sample rate to Advance mode to Standard mode. But what I have notice when I switch off the Advance driver mode and go into standard USB Audio mode it doesn't making any popping noise weird umm. But in standard mode I cant use the Midi I/O or asio. Why does it pop while I'm playing music with windows media player. I even have the but in sound card on my computer disabled. The advance driver is installed properly, it was digitally signed and is the latest driver. So can someone help fix this problem, is my interface defected?

My setup is a Toshiba Satellite L305D, 3GB Ram, AMD Athlon x2 Dual-Core QL-62 2.00 Ghz, Windows Vista Home Premium SP2, Cakewalk Sonar Home Studio XL 6.2.2, Propellerhead Reason 4.0.1, Edirol UA-25 EX, Yamaha KX 8.

Emmanuel

Are the pops random?  Does it happen when your CPU kicks in for some background task?
 
Could be electrical interference from something... A fridge / freezer kicking in for example can cause problems for people.
 
I have a satellite signal piped to my upstairs TV via a wireless sender.  Picture turns to mush somewhere between half 7 and 8 am on a weekday.  It's next door cooking their breakfast in a microwave!!!

I don't know if this will help. But try using a different driver like the WASAPI. WASAPI driver is available for Vista OS only. I had tried a few minutes ago and seems like I had reduced the latency a bit compared to ASIO.


My set up is is Dell Inspiron 6400 laptop.VISTA home premium 32bit.  Centrino Duo at 1.7Ghz, 4 G RAM. UA25EX and Sonar 8.5. 

Did you disable the onboard sound in the BIOS?

Hi Gilly,

I did pretty much every thing above but still no success. I have the audio interface plugged directly in to the laptop no hub. I can hear the popping sound in my head phones too. I will try my unit on a couple of my friends computers and see if it does the same. If it doesn't do the same then it's just my laptop, which is just the way it's made and configurated, But if it do does the same then it's the interface that is defected or has some electrical shortage on the circuit board inside the box.

But the weird thing about it how come it's doesn't pop while the Advance Driver mode switch is off. It only pop's while in Advance Driver mode but in Standard mode 16 bit 44.1 it never pops. Why is that? I know it uses two different drives. One is a generic usb audio driver which is included in Windows Vista OS and the other is the Roland ASIO Driver for the UA-25EX.

I don't want to use the standard mode since I use the MIDI I/O for my Keyboard and always use a 24 bit 48 recording. The interface is kind of useless with out the high quality if I just use the standard mode. I Know there is a free asio driver out there called ASIO4ALL but in my opinion I do not like it. I tried it once and my sonar was very unstable and too many dropouts because that driver couldn't handle heavy midi and audio projects.

How is your interface I'm sure you have the same one I do, but just with the Cakewalk name slapped on it instead of Edirol brand name. I will let you know what I find out after I test it on my friends computer.

Emmanuel

Hi Gilly

I got good news I just resolve that annoying poping noise. It was my BIOS the whole time. I just went to Toshiba and downloaded the lasted BIOS update from version 1.30 to 1.80. now every thing works great. At first I thought is was the interface but it was my computer.

anyways thanks for the help and information, you where very helpfu. Now I can finally start making music.

Switch the Advanced Driver to OFF from your soundcard.   Switch the KHz to 44.1 from your soundcard. You can see those switches at the back of UA-25EX.    

In Sonar,  go to Audio -  Switch the driver to '' MME-32 Bit '' at first.  Then put the latency to 10 or 20 ms.     At the Sonar screen, you will see '' 44.100 Khz - 16-Bit '' under the Sonar main screen.  

Try these settings on Windows Media Player and on Sonar.  

Windows Media Player just runs 16 or 32 bit music.   So when the Advanced Driver is on, UA 25-EX works on 24-bit.  This causes popping on Windows Media Player.  


In My Laptop ;   It's really hard to use UA 25 EX stable with ASIO drivers.  I've tried few USB Sound Cards with their own ASIO drivers, and also tried ASIO4ALL.   Nothing solved my problem.

I was using it with MME-32 @ 10 or 20ms latency ( Monitoring on from UA-25 EX  which makes you feel  like there's no latency )

About half an hour ago I decided to try WASAPI and @ 9 ms latency I took a record without any stability problem.  

Try Both MME-32 Bit and WASAPI with 44.1 KHz - 16 Bit set from both your UA 25 EX and Sonar. Hope it works.