Cynagen
02-03-2006, 12:13 AM
I've been putting off posting this thread, as I really haven't bothered to sit down and take the time, but now that I do here at work, well... my thread.
Now, this thread, i'm putting towards the use of finding out the different Bluetooth chipsets out there and identifying their pitfalls and peaks. Now I have experience with only 3 chipsets so far, so I'm going to post the information on those and how well they performed doing different tasks, and what device I found them in.
===PLEASE NOTE: When you post your experience, please be sure to have your CHIPSET, DEVICE, and PROTOCOLS you used, just follow the format I'm using below, if you're missing the protocol, just describe what you were doing and I can identify it for you later, the chipset is a MUST, and the device is just a helper so we know what products to watch out for when shopping.===
Chipset: Cambridge Silicon Radio (CSR)
Found in: Macsense BT-100 USB2.0-BT1.2 Adapter, Motorola HT820 Stereo Headset, Bluetake BT009x USB2.0-BT1.2 Adapter
Protocols used with chipset and how well they performed:
A2DP (Stereo Audio): (HT820+BT-100/BT009x) - It has this annoying problem with extremely sensitive high-end clipping, where it just turns to static, not just myself but others had this same issue, not sure if it's the same chipset he had, but with all my CSR ones, it's the same story, and with 2 CSR chips, it's FAR worse.
Headset (Used for phonecalls, mono+mic): (HT820+BT009x/BT-100) - Sounds just fine, nothing really wrong here, the delay isn't too much, almost instant, but god forbid you go outside the range of the device, static.
File transfer: (BT-100<->K750i) Worked fine, pushed a nice 45kb/sec transfer rate through to the phone, and back, no problems here at all.
Pros: Works great if data is all you want.
Cons: Use it for audio and you suffer.
Chipset: Integrated Systems Solutions Corp (ISSC)
Found in: ? (USB2.0-BT1.2 Adapter)
Protocols used with chipset and how well they performed:
A2DP: (HT820+ISSC BT Adpt) - It got rid of a lot of the high-end clipping on the sound, but there's still clipping on the headset, so go figure, got 20m without LOS (cubicle dividers, computers, printers all in the way).
Headset: (ISSC<->HT820) - Works well, doesn't get static at the end of the range, just cuts out and stays out, adapter with the BlueSoleil stack holds the call open till you get back in range and reconnect to it
File transfer: (ISSC<->K750i) - Worked fine, pushes the same 45kb/sec, but gets better distance on the transfers, got 20m without LOS (cubicle dividers, computers, printers all in the way)
Pros: Gets great distance, works great for audio and data
Cons: Headset audio suffers a bit, people can't seem hear you well, still unsure why
Chipset: Philips Semiconductors
Found in: Sony Ericcson K750i World/Smartphone (BT1.2)
Protocols used:
File transfer: (K750i<->K750i) - Works great, has even better distance
Headset: (K750i<->HT820) - Works, but get obstructions like humans and walls in the way, and you're screwed.
Pros: Good distance, with data
Cons: Piss poor distance, with audio, very easy to drop calls without LOS
Now, this thread, i'm putting towards the use of finding out the different Bluetooth chipsets out there and identifying their pitfalls and peaks. Now I have experience with only 3 chipsets so far, so I'm going to post the information on those and how well they performed doing different tasks, and what device I found them in.
===PLEASE NOTE: When you post your experience, please be sure to have your CHIPSET, DEVICE, and PROTOCOLS you used, just follow the format I'm using below, if you're missing the protocol, just describe what you were doing and I can identify it for you later, the chipset is a MUST, and the device is just a helper so we know what products to watch out for when shopping.===
Chipset: Cambridge Silicon Radio (CSR)
Found in: Macsense BT-100 USB2.0-BT1.2 Adapter, Motorola HT820 Stereo Headset, Bluetake BT009x USB2.0-BT1.2 Adapter
Protocols used with chipset and how well they performed:
A2DP (Stereo Audio): (HT820+BT-100/BT009x) - It has this annoying problem with extremely sensitive high-end clipping, where it just turns to static, not just myself but others had this same issue, not sure if it's the same chipset he had, but with all my CSR ones, it's the same story, and with 2 CSR chips, it's FAR worse.
Headset (Used for phonecalls, mono+mic): (HT820+BT009x/BT-100) - Sounds just fine, nothing really wrong here, the delay isn't too much, almost instant, but god forbid you go outside the range of the device, static.
File transfer: (BT-100<->K750i) Worked fine, pushed a nice 45kb/sec transfer rate through to the phone, and back, no problems here at all.
Pros: Works great if data is all you want.
Cons: Use it for audio and you suffer.
Chipset: Integrated Systems Solutions Corp (ISSC)
Found in: ? (USB2.0-BT1.2 Adapter)
Protocols used with chipset and how well they performed:
A2DP: (HT820+ISSC BT Adpt) - It got rid of a lot of the high-end clipping on the sound, but there's still clipping on the headset, so go figure, got 20m without LOS (cubicle dividers, computers, printers all in the way).
Headset: (ISSC<->HT820) - Works well, doesn't get static at the end of the range, just cuts out and stays out, adapter with the BlueSoleil stack holds the call open till you get back in range and reconnect to it
File transfer: (ISSC<->K750i) - Worked fine, pushes the same 45kb/sec, but gets better distance on the transfers, got 20m without LOS (cubicle dividers, computers, printers all in the way)
Pros: Gets great distance, works great for audio and data
Cons: Headset audio suffers a bit, people can't seem hear you well, still unsure why
Chipset: Philips Semiconductors
Found in: Sony Ericcson K750i World/Smartphone (BT1.2)
Protocols used:
File transfer: (K750i<->K750i) - Works great, has even better distance
Headset: (K750i<->HT820) - Works, but get obstructions like humans and walls in the way, and you're screwed.
Pros: Good distance, with data
Cons: Piss poor distance, with audio, very easy to drop calls without LOS