Description
Sound card 1 is the most sophisticated but simple to use device. It has Onboard 5W Class D amplifier circuit and can directly drive 4ohm 3~5W speakers. It plays MP3 and WAV decoding format sampling frequency (KHz) 8/11.025/12/16/22.05/24/32/44.1/48. Both have 24-bit DAC output, dynamic range of 90dB, SNR 85dB.
When either card is connected to your computer via the USB port it shows as a drive connected for simple drag and drop sound file transfers. This sound card is compatible with any system that has an open collector that can drive one of the selection pins to ground. The selection switches determine if the file plays until the ground is lifted 1, 2 ON 3 OFF or to loop continuously 2 off. See the diagram below. See files in memory for naming convention and to confirm sound card is working.
Includes
Select Wire for gate controller, Speaker, Mountings and different bell sounds including a wigwag and farm ambiance.
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