Acer Aspire V5-571 Acer Aspire V5-531 Notebook Service Guide - Page 39

Audio Codec Controller Features Item Audio Interface Item Controller Audio onboard Audio channel Resolution Compatibility Sampling rate Internal microphone Internal speaker/quantity Webcam Item Vendor and models Resolution Specification Realtek ALC271X_VB6 QFN-48  98 dB Signal-to-Noise Ratio (A-weighting) for DAC output  90 dB Signal-to-Noise Ratio (A-weighting) for ADC input  Internal Digital Power support: 3.3 V digital core power; 1.5-3.3 V digital IO power for HDA link; 3.0-5.0 V analog power; 3.0-5.0 V power stage voltage  Acoustic Echo Cancellation (AEC), Noise Suppression (NS), and Beam Forming (BF) technologies for voice application  48-pin green QFN package Specification Realtek ALC271X_VB6 QFN-48 Yes Stereo 18 bit stereo full duplex High Definition Audio Specification 1 Hz resolution VSR (Variable Sampling Rate) Yes Yes, two speakers Specification  Chicony HD CH_OV9726_AU  Liteon HD LT_OV9726_SP  Suyin HD SY_OV9726_AU 1.3 MP HD Hardware Specifications and Configurations 1-31