Sound Cards that do not work with the MLS measurement method

Note that you can use most the sound cards in the list below for the other measurement methods. If you use the sine sweep method, you must use a single sweep only and no averages.

The list below shows the cards that have been tested and been shown not to work with the MLS method, but they might still work fine with the sine sweep method. (Sine sweep is set as default in WinMLS except for STI measurements so MLS should not be needed) If this is because of a bug in the sound device driver, note that the sound device may work with future releases of the driver. It is also possible that some of these have an internal sampling of 48 kHz, this means that they will work properly only at sampling frequencies 48, 24 and 12 kHz.

Some sound devices do not support simultaneous play and record and therefore cannot be used with WinMLS. Most of the newer cards support simultaneous play and record operation, but may not work with WinMLS due to errors in the hardware or with the driver.

USB Pre – sampling frequency input/output is not equal

Edirol Ua-1A – sampling frequency input/output is not equal

Roland USB Audio Interface (UA-30) – sampling frequency input/output is not equal

SonicPort – This is a device for the USB port. It seems to work fine, but in full duplex mode it does not work properly and we were not able to get correct measurements using this device. It is probably because sampling frequency input/output is not equal.

LP600 – did not seem to work.

Turtle Beach Montego – sampling frequency input/output is probably not equal. Sampling frequency 48 kHz might work.

Turtle Beach Montego 2– sampling frequency input/output is probably not equal.  Sampling frequency 48 kHz might work.

Yamaha DS-XG – sampling frequency input/output is probably not equal. Sampling frequency 48 kHz might work.

Event Darla, Layla and Gina – sampling frequency input/output is probably not equal.