Audacity and Behringer sampling rate issue


I’ve been using Audacity and Behringer USB Audio Midi Interface (FCA610) on Windows 7 for some time, they worked like a charm. Unfortunately I have to switch to a new notebook with Windows 10, here the problem comes.

I installed Audacity “2.1.3-alpha-Nov 5 2016” and the latest Behringer Driver FCA610_USB_Drv_V6_13_0 on my Windows-10 notebook. BTW, Audacity is recommended by Behringer. When Sampling Rate is set to 44.1kHz, recording and playback work fine with Audacity. But, when I set Behringen Sampling Rate other than 44.1kHz (e.g. 48 kHz), Audacity doesn’t like to record anything. Starting “Recoding” results in message “Error opening sound device. Try changing the audio host, recording device and the project sample rate.”

Why Audacity only recording at 44.1kHz? Do I miss any configuration in my setup? Is this a Windows 10 specific issue? Note: I did set the sampling rate in Audacity “Preference → Quality” accordingly.

tips & tricks are very appreciated!


Try changing the sample rate in the Windows Sound Control Panel to match the Behringer setting (and also the sample rate setting in Audacity “Edit menu > Preferences > Quality”, but leave the “sample format” as “32-bit float”).

Hi Steve,
Thanks for your prompt answer. Unfortunately there is no “advanced” tab for the Behringer device under Sound Control Panel in Window-10. In window-7 there is such tab and I could select the correct sampling rate for Behringer device.
Any other suggestion?

Why Audacity only recording at 44.1kHz? Do I miss any configuration in my setup? Is this a Windows 10 specific issue?

I assume you’re using the WASAPI Audio Host? There’s a “WASAPI Exclusive Mode” setting somewhere in the Windows Control Panel. I believe that “locks you in” to whatever sample rate the hardware is running. (Normally, the drivers will re-sample the audio so it’s hard to tell what the hardware is doing.)

Did your interface come with some configuration software that allows you to change the hardware sample rate?

There is an “Exclusive Mode” setting that works with compatible host API’s offered by the audio application. Among the hosts that Audacity offers, Exclusive Mode is supported by WASAPI and Windows DirectSound (that host is believed to respect the sample format you choose in the hardware / audio application but on Windows Vista and later it always upsamples to 32-bit float before handing off audio to the application).

That Exclusive Mode setting is in the “Advanced” tab of Windows Sound too, so you must be able to see that tab. If you enable both Exclusive Mode boxes, then the “Default Format” sample rate above the boxes is ignored. You then set the same sample rate in the audio application and the hardware.

Have you also installed the device’s “Firmware 8348_RC”?


Yes, Behringer FAC610 driver comes with a small UI where I can set Sampling rate and Clock Source. As soon as I set the Sampling rate other than 44.1kHz, Audacity will not start recording. As I wrote before, there is no such “Advance” tab for my Behringer device under Sound Control panel, therefor I can’t change the setting to Exclusive Mode either. My setup works perfect on Windows-7 where I just select MME in the Audacity UI.
I haven’t installed the device’s “Firmware 8348_RC”, since it works on Windows-7 without that. I may try to install it on Windows-10 Notebook and see if it helps.

Thanks Gale and Steve. After struggling with the problem the whole week, I decide to giveup and move back to a Windows-7 Notebook. Within 10min everything is settingup and works perfectly with Windows-7. To all who have the siilar problem, if you use many 3rd party apps on Windows OS, do NOT upgrade to windows-10. This will save you lot of time and trouble.

I don’t know if you installed the firmware before giving up on Windows 10, but as a general rule it is always best to install firmware as well as drivers of external devices. I would call it broken if there is no “Advanced” tab after installing drivers and firmware and I would not be blaming Windows 10 for that.