As we all know that Raspberry Pi has digital audio capability via HDMI port. The analog audio provided from 3.5mm jack is extremely low quality. Since there been room on board for good quality codec chip for improvement. Taking digital audio data directly from BCM2835 system-on-chip processor, the codec could have driven any number of digital or analogue outputs at an extremely high level of quality. Wolfson audio card add-on for the Raspberry Pi, This is the first audio card add on for Raspberry Pi and it allows user to capture sound from camera and experiment with digital audio capture.
Wolfson audio card is highly integrated low power audio system based on WM5102 coded which targets mobile devices such as smart phones, tablets, MP3 players and so on… making it the perfect fit for the ultra portable Raspberry Pi. Wolfson audio is based in Edinburg. Thankfully this wolfson audio card is available at reasonable cost of Rs. 2464 in India from element14.