| deviceName | The name of the device. |
| minFreq | Returns the minimum sampling frequency of the device. |
| maxFreq | Returns the maximum sampling frequency of the device. |
Get the frequency capabilities of a device.
Passing null or an empty string for the device name will select the default device. You can use the devices property to get a list of all available microphones.
When a value of zero is returned in the minFreq and maxFreq parameters, this indicates that the device supports any frequency.