ph0n6,   It seems you are looking for a Bluetooth receiver to connect to your audio equipment and you want to have a high fidelity connection with low latency, right?  Does your audio equipment have a  S/PDIF Digital Audio Coax Cable connector for input?  If so, the DAC is already in your...

Davidhall,  You are right about the vintage status of Aptx.  The codec has been around for a while.  Over time Bluetooth sink manufacturers have used the codec in their products because of its impressive wireless audio performance.  Unfortunately, there aren't as many Bluetooth source...

BeMyMonkey asked:       Based on what you have said, the periodic streaming skip you are experiencing is caused by your MiFi, portable WiFi router, which is buffering your content stream.  You'll likely experience this buffering with video streaming as well.  You can test this with a...

josephkarthic,   As unbiased has the Sony MDR-1RBT headphones and the capability of turning Aptx on/off from his BT source, he can provide you with the best analysis.   Let me say that a wired connection to your source device will always outperform a wireless BT connection in almost all...

Unbiased,   Some Sony headphones actually have 3 modes of BT using various CODECs which are selectable, i. e., Priority on Sound Quality, Standard, and Priority on Stable Connection.  I have the Sony MDR10RBT Wireless Headphones with V3.0 Bluetooth and NFC.  The Help Guide on the Sony website...

Unbiased,   I think Giogio and turbobb's advice only applies if you are running Win 7.  Audio rendering does not exist in Win 8 as it does in Win 7.  Win 8.1 will load all the drivers necessary for BT 4.0 A2DP (given your PC has BT 4.0 radio hardware).  The Azio website posts some usage notes...

ClieOS,   Thank you for your exhaustive explanation of how audio coding and decoding are performed over a wireless connection, such as, BT.  This is how I understand it, also.   Giogio,   Your ABC analogy of the physical layer of a BT connection is correct.  In the case of radio waves...

Hi Giogio,   Well, not everyone knows that AAC is a BT transmission CODEC.  I found this interesting so I did some research on Apple and their implementation of BT on their devices, iPhones, iPods, iPads, and etc.  There is a specification for Apple developers that provides guidelines for the...

Quote:  ClieOS   I wasn't aware that Apple was using the AAC codec as a replacement for the BT SBC codec in their BT source devices.  Thanks for the input.  The AAC codec would be a great improvement over the built-in BT SBC codec.  Sound Quality and latency would be very good.  I'd really...

Hi Giogio,   Actually, BT Class 1 will require more than just an improved antenna.  It will include a tiny Power Amp (PA) transistor and a capacitor to tune the antenna.  This would not be an easy modification to a BT Class 2 source.  Nevertheless, these components are relatively low cost. ...

Giogio,   What current an electronic device draws is very important when it comes to battery or portable power.  In regards to the Plantronics BackBeat Pro headphones, all I can think of, without opening the circuit to see for myself, is that there must be 2x power circuits to the antenna. ...

Jugate,   What makes you think that the Sony Xperia E3 has the Bluetooth Aptx codec?  If you buy either the LG or Sony headphones you will need to find a BT source with the Aptx codec to take advantage of the lossless audio.  In the case of the Sony Xperia E3, you should stick to wired...

GioGio,   Let me clarify the Class 1 vs. Class 2 issue.  Having a Class 1 BT sink, such as the Plantronics BackBeat Pro headphones, will not give you a 100m range by itself.  The source would also need to be BT Class 1.   Good luck finding one that does acceptable A2DP.    So, a Class 1 sink...

Quote: from Giogio   The answer is power consumption.  Class 2 BT devices use less battery.  It will be a while until mobile phone manufacturer's ship phones with Class 1 BT.  Same is true for portable PC's and tablets.   Quote:  from GioGio   Great, carry your mobile phone in your...

Quote: from ClieOS   ClieOS is absolutely correct here.  There are many parameters that effect sound quality and fidelity.  BT is essentially a wireless replacement for a twisted pair of wire.  It is also digital, as opposed to analog.  This is core to BT no matter which profile is being...

James444,   Thank you for your evaluation of these BT sink devices.  Can you tell us what your BT Aptx source (transmitter) is?

Hello Optik,   Yes, I see it now.  The Plantronics BackBeat Pro does have CSR's Aptx.  The CSR logo is at the bottom of the home page.  I found it curious that they didn't include the Aptx codec within their BT spec.  Aptx is an improved alternative for the Sub-band Coding, SBC, codec...

Hi Optik,   I have noticed the same thing with my Microsoft Surface Pro 2.  Once you install the Harmony software on the Surface Pro it seems improve Sound Quality and latency (lip synch is really good), although there is nothing that tells me that CSR Aptx is connected to my sink (which is...

I can attest to the fact that if you have a display that you can use your finger, a pen, or a trackpad for input, then you don't really need a mouse.  Although I still like navigating a browser with a mouse.   It appears that the Dell XPS 18 has BT built-in.  Unless Dell has also included the...

Well, GioGio, you have a conflict with Setpoint and the CSR BT Aptx codec.  Apparently, the wireless mouse works, but you can't control it with Setpoint.  You'll have to prioritize what you want to run on your PC.  BTW, you'd love Win 8.1.  It's a great OS.  Perhaps one of the new Microsoft BT...

Okay GioGio,   Previously you had a computer (laptop???) with no BT built-in, a Logitech BT mouse with no dongle, an Azio USB Micro Bluetooth Adapter V4.0 EDR and aptX (BTD-V401), Logitech Setpoint software to customize your mouse buttons, keyboard F-keys and hot-keys, control tracking speed...

Hi Giogio,   I have a non-BT wireless mouse on my desktop.  I simply plug in the Azio dongle and I have Aptx A2DP.  The wireless mouse isn't a Logitech mouse, nor do I use SetPoint mouse drivers.   I have a BT mouse for my Microsoft Surface Pro 2 tablet.  To use the Azio dongle with CSR...

Hi Giogio,   The Aptx software, Harmony, that comes with the Azio dongle is at best demonstration software intended to showcase the great fidelity and latency of Aptx.  It's my opinion that this combination was given to hundreds of prospective OEMs for all sorts of portable electronics as a...

Well, Giogio, you have detailed the saga of BT on your PC very well.  I admire your patience with radio devices.  For sure they can be frustrating, even for a seasoned electronics engineer like me.   It may be a blessing that you don't have BT built into your PC.  You don't have to disable it...

Hi Giogio, you have asked several questions.  Let me see if I can answer them.   You haven't said what your PC is.  So, I'll assume it's a PC with built-in Bluetooth and you have a Logitech mouse that pairs to it.  Perhaps your BT headphones will pair up with your PC.  So, your PC is running...