![]() ![]() That can help MR readers when making purchase decisions. So, one thing this thread can do is help reveal which models have the lowest trigger delay. If each bluetooth model can have a different trigger delay, then we should expect a variety of user experiences but consistency with each model. But then, I've seen many teams come up with "excessive" specs! If no audio content is being streamed, why keep waking up the bluetooth headset? Personally I think that is a bit of a stretch. When I asked why wouldn't all devices be designed to have zero trigger delay, they suggested one reason is so that the bluetooth device won't run out of power unnecessarily when phone buttons are pushed due to "accidental bumps while the phone is in the user's pocket or purse". They said it is a parameter controlled by the bluetooth device designer. )Īpple told me this has nothing to do with their iOS. (Opened this thread so that I stopped hijacking one over here. If you are interested in helping generate a sample of affected users, please post withīluetooth device = (any, not just Jawbone) I'm hoping to get the trigger delay reduced and have opened cases with Apple and Jawbone. I have listened carefully and the trigger delay affects iPod, Pandora, YouTube, Netflix, Phone - any app that can generate audio streams sendable to the bluetooth device. On the Jawbone ICON I can hear faint clicks at ~ 1 second (gate triggers), ~ 2 seconds (gate is open), and then after a stream terminates at ~ 5 seconds (gate closes). If something holds the gate open - for example streaming background audio by iPod or Pandora - then when a navigation app interrupts with a TTS instruction none of it is lost. The trigger delay can be a significant problem for navigation apps with text-to-speech (TTS) enabled.Īn instruction spoken via the iP4's built-in speaker has no delay and sounds like, "In one mile at the T junction turn right onto First Street."īut the same instruction over bluetooth loses words and becomes, " tion turn right on First Street." According to Apple, the trigger threshold is controlled by the bluetooth device manufacturer. Audio content is lost each time the gate must be triggered open. The gate closes a short period of time after the audio stream terminates. For users, this means roughly 1 to 2 seconds of audio can be lost at the beginning of a stream. Background: A bluetooth device must detect a preset amount of A2DP audio stream to trigger open a gate allowing the stream to actually play through the device. ![]()
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