September 2012 - Bluetooth-dev

Unable to scan while the application in the background.
by ramprakash.thinakaran＠wipro.com 18 Sep '12

18 Sep '12

_______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

1 0

Re: Long Disconnect Time
by Etan Kissling 18 Sep '12

18 Sep '12

_______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

1 0

Re: CoreBluetooth and ARC
by Etan Kissling 18 Sep '12

18 Sep '12

_______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

1 0

Re: slow image loading
by Etan Kissling 18 Sep '12

18 Sep '12

BLE shares an antenna with WiFi and Classic BT. Does the problem only occur while scanning or is it also there while connected? On 18.09.2012, at 00:43, "Josh Marinacci" <joshua(a)marinacci.org> wrote: > I'm working on an app that uses BluetoothLE scanning as well as loading images over the network. I discovered that image loading is incredibly slow if a scan is in progress. This seems strange to me since image loading is over HTTP through the wifi connection while scanning is using the bluetooth chip. Does anyone know what would cause this? What should be a 4 second image load is taking almost a minute if a scan is in progress. Very odd. > > thanks, > Josh > > -- > Josh Marinacci > joshondesign.com > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/bluetooth-dev/kissling%40oberon.ch > > This email sent to kissling(a)oberon.ch _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

1 0

Re: Long Disconnect Time
by Michael Kroll 18 Sep '12

18 Sep '12

_______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

1 0

slow image loading
by Josh Marinacci 17 Sep '12

17 Sep '12

_______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

1 0

Long Disconnect Time
by deric＠blueradios.com 17 Sep '12

17 Sep '12

_______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

1 0

Re: IOBluetoothHandsFreeDevice has failed during initialization
by Matt Gillette 17 Sep '12

17 Sep '12

For 2 there's an issue connecting to a device that only supports SCO (not eSCO), but everything else should work. If it's not, please file a bug with a bluetooth diagnostics attached captured after the problem occurs (option click the Bluetooth Menu extra). Opening and closing the SCO connection should be improved. 10.8 should keep the RFCOMM connection alive, so opening and closing the SCO connection should be quicker and rarely fail. IOBluetoothHandsFreeDevice should implement HFP with only a few lines of code. It also moves away from the old deprecated code previously used. Matt On Sep 17, 2012, at 8:18 AM, Peter Sichel <psichel(a)sustworks.com> wrote: > I'm the developer of Phone Amego which also lets the Mac act as a Bluetooth HandsFree device. > > In my experience, this has been challenging for a number of reasons: > > (1) There's no built-in support for echo cancellation or noise reduction. > > (2) The Bluetooth audio fails on some Macs depending on their Bluetooth hardware. > > (3) Opening and closing the SCO audio connection can take several seconds > and sometimes fails. > > (4) Siri on the iPhone 4S tries to use the HandsFree device outside the context of a call. > Is there any documentation on how this works? > > (5) The CAPlayThrough sample code is broken and unreliable. I've switched > to using QTCapture sessions. > > Have any of these issues been addressed in 10.8 ? > The IOBluetoothHandsFreeDevice requires 10.7 or later. Is this significantly more robust > than the previous API for supporting HandsFree? > > Thanks for any insight, > > - Peter > > > On Sep 16, 2012, at 6:17 PM, Matt Gillette <mgillette(a)apple.com> wrote: > >> Before creating the IOBluetoothHandsFreeDevice you need to call >> >> IOBluetoothAddSCOAudioDevice((IOBluetoothDeviceRef)device, (CFDictionaryRef)[NSDictionary dictionaryWithObject:@YES forKey:@"Autoconfig hidden"]); >> >> This only needs to be called once per pairing. >> >> Matt >> >> On Sep 16, 2012, at 12:32 AM, 김영태 <bestyt.kim(a)gmail.com> wrote: >> >>> Hi, >>> >>> I have a trouble to use IOBluetoothHandsFreeDevice on MacOS 10.7. >>> >>> I'm developing the Mac app to emulate Handsfree device on MacPC so that I need to control BT SCO channel to open/close this stream and route it to system default input/ouput devices on Mac. When I create/initiates RFCOMM channel to remote device, everything is okay and AT-COMMANDS are transferred to BT devices properly. But whenever IOBluetoothHandsFreeDevice is initaited, it is always saying "Failed to create SCO audio device". I have no idea why this error came out..(Already spent so many hours around 2 weeks.. No luck until now) > _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

1 0

BLE for iOS 6 and iPhone 5 What's New?
by Mike Wirth 17 Sep '12

17 Sep '12

_______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

1 0

Re: IOBluetoothHandsFreeDevice has failed during initialization
by Peter Sichel 17 Sep '12

17 Sep '12

I'm the developer of Phone Amego which also lets the Mac act as a Bluetooth HandsFree device. In my experience, this has been challenging for a number of reasons: (1) There's no built-in support for echo cancellation or noise reduction. (2) The Bluetooth audio fails on some Macs depending on their Bluetooth hardware. (3) Opening and closing the SCO audio connection can take several seconds and sometimes fails. (4) Siri on the iPhone 4S tries to use the HandsFree device outside the context of a call. Is there any documentation on how this works? (5) The CAPlayThrough sample code is broken and unreliable. I've switched to using QTCapture sessions. Have any of these issues been addressed in 10.8 ? The IOBluetoothHandsFreeDevice requires 10.7 or later. Is this significantly more robust than the previous API for supporting HandsFree? Thanks for any insight, - Peter On Sep 16, 2012, at 6:17 PM, Matt Gillette <mgillette(a)apple.com> wrote: > Before creating the IOBluetoothHandsFreeDevice you need to call > > IOBluetoothAddSCOAudioDevice((IOBluetoothDeviceRef)device, (CFDictionaryRef)[NSDictionary dictionaryWithObject:@YES forKey:@"Autoconfig hidden"]); > > This only needs to be called once per pairing. > > Matt > > On Sep 16, 2012, at 12:32 AM, 김영태 <bestyt.kim(a)gmail.com> wrote: > >> Hi, >> >> I have a trouble to use IOBluetoothHandsFreeDevice on MacOS 10.7. >> >> I'm developing the Mac app to emulate Handsfree device on MacPC so that I need to control BT SCO channel to open/close this stream and route it to system default input/ouput devices on Mac. When I create/initiates RFCOMM channel to remote device, everything is okay and AT-COMMANDS are transferred to BT devices properly. But whenever IOBluetoothHandsFreeDevice is initaited, it is always saying "Failed to create SCO audio device". I have no idea why this error came out..(Already spent so many hours around 2 weeks.. No luck until now) _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

1 0