For some a new users, the digital sound from the HP Pavilion DV7 1273ca, 1270ca, 1279ca, 1275 laptop computer is connected to external speakers, you need to check the HDMI cable. Ok, if that, make sure that the amplifier and to ensure that the speakers to output digital audio such as Dolby Digital or DTS. Thus, the HP Pavilion DV7 1273ca, 1270ca, 1279ca, 1275 speakers will be able to receive the digital audio input for portable computers. 2. all the test that the DVD movie, you’ve probably observed. Make sure that support digital audio ( HDMI ) or not. If the DVD does not help, then there is no way it will not be able to output HDMI digital sound in the film.
Last but not least, test the HP Pavilion DV7 1273ca, 1270ca, 1279ca, 1275 software you use to play videos. Look for Digital audio settings and set the digital audio output to individuals. Some players do not support digital video output, which means that you must go out to explore. You can use CyberLink PowerDVD, as it will help some of Dolby Digital and DTS Surround.