Quote:
Windows Audio Session error: Input and output sample rates must match. Audio input (recording) will be disabled. The error number is -9997.


This error happens for two reasons - either it's exactly as described and your sound input is set to a different sample rate than output, or there is no audio input device. Often the first case happens when using a Bluetooth speaker or headphones, since the microphone on most of them usually uses a very low sample rate (8-16khz) while the output is usually 44.1 or 48khz. To avoid this when using a Bluetooth device, you need to select something else as the audio input device.

To avoid this error with your regular sound card, you need to set the sample rate properly. Try this:

Right click on the Windows Start menu and choose Run, then enter "control mmsys.cpl sounds" and press OK. This will open up the Windows Sound control panel.

Under the Playback tab, choose your default audio device (with the Green checkmark), then click on Properties. Go to the Advanced tab and choose 16-bit 44100 Hz (CD Quality) and click OK. If there is only the option of 24-bit 44100 Hz (Studio Quality), choose that instead. While we're here, uncheck the option to "Allow applications to take exclusive control of this device".

Next, do the same on the Recording tab with the device that has the Green checkbox. Click Properties, go to the Advanced tab, and choose 16-bit 44100 Hz (CD Quality) and click OK. If there is only the option of 24-bit 44100 Hz (Studio Quality), choose that instead. While we're here, uncheck the option to "Allow applications to take exclusive control of this device".

Once that is done, click OK on the Sound window, then go back to Band-in-a-Box and make sure it is working.

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