stiahni rozbaľ a spusti setup.exe http://global-download.acer.com/GDFiles/Driver/Aud io/Audio_Realtek_v6.0.1.5413_Vistax64.zip?acerid=6 33639058957170264&Step1=NOTEBOOK&Step2=ASPIRE&Step 3=ASPIRE%205520&OS=V09&LC=en&BC=ACER&SC=EMEA_27