Wednesday, May 14, 2014

Problem with laptop speakers?




b e r r y


I use Windows 7 64-bit on a Dell laptop and everytime I plug in my earphones my music plays as expected but then the sound randomly switches to speakers when the sound comes from a different source such as my Skype message bleep. When I click on the speaker icon on the bottom right hand side of my desktop two sound sources come up, the earphones and the speaker. When I plug in the earphones, the green bar moves under the speaker icon as if it's still playing through the speakers (even if the audio is playing through my headphones). How can I stop this so my laptop automatically mutes speakers when I plug in my earphones and doesnt switch between them randomly? Thanks.


Answer
start
control panel
system
hardware
device manager
System devices
disable system speaker

Sony HT-CT660 sound bar with wireless subwoofer?




Juan De lu


I just bought a Sony HT-CT660 sound bar with wireless subwoofer (http://store.sony.com/46-sound-bar-with-wireless-subwoofer-zid27-HTCT660/cat-27-catid-All-Sound-Bars?_t=pfm%3Dcategory) and planning on buying a 7.2-channel 4K Wi-Fi Network A/V Receiver (http://store.sony.com/7.2-channel-4k-wi-fi-network-a-v-receiver-zid27-STRDN1040/cat-27-catid-All-Speakers-and-Stereo-Components), does sony have wireless speakers that I can add so I can have a surround sound home theater set? I don't want to buy a home theater set with the player and speakers WITH WIRES.


Answer
Sorry, but you can't mix and match those two systems.

The STRDN1040 is a full-on high quality AV surround receiver. Wireless rear (or wireless anywhere) speakers have no place being used with such a fine amp. It doesn't have that feature because it would compromise the sound quality and undermine the reason for buying a high quality receiver in the first place.

If you wanted wireless rear speakers then you should have bought something like the Sony BDV-N790W.

However, there are no true wireless home theatre speakers. The speakers need power to make sound. They also need power to work any wireless receiver module. That power has to come from somewhere. Your wireless sub has to plug in to the mains. It's the same with any "wireless" speakers. Batteries alone aren't up to the task.

In most cases "wireless" means there's no direct link from the main player unit to the rear speakers. But there will be a power cord and usually at least one linking speaker cable between the rear speakers. Often the power comes from the sub. So the rear speakers are connected to the subwoofer rather than the main unit.

None of the main manufacturers do wireless front and centre speakers.

Bluetooth wireless connectivity requires far too much audio compression to use for the main front speakers. You'll hear the drop in sound quality with on-the-fly audio compression. Bluetooth is okay for sending music data files that a main unit decodes and plays. But trying to compress the front channel speaker outputs as a live stream is just asking too much. The sub channel is an exception. There's far less data to compress because the channel is dealing with audio from a very small segment of the frequency range; typically 0-120Hz or less. Rear channels do sound worse though though via wireless. The trade-off is that there's very little really important sound carried via the rears so it's an acceptable compromise. This is not being elitist or snobby about sound. It's just an honest appraisal and true reflection of what's actually happening once you sweep away the marketing BS.




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