I am using this style of QCC3008 Bluetooth module in my car radio.
I've noticed when audio starts to play after silence, about the first second of it is cut off/not played. This behaviour is different from any wireless earphones I have used, which seem to wait a moment before starting to play.
Does anyone know of an option in ADK configuration tool which may change this? I recently bought a QCC5125 version of this too, which also has the same problem by default.
Just to explain why this is a problem, I have the chip in my car radio and use it for navigation.
Instead of -
"In five mile, turn left"
I get -
"...miles, turn left"
I've noticed when audio starts to play after silence, about the first second of it is cut off/not played. This behaviour is different from any wireless earphones I have used, which seem to wait a moment before starting to play.
Does anyone know of an option in ADK configuration tool which may change this? I recently bought a QCC5125 version of this too, which also has the same problem by default.
Just to explain why this is a problem, I have the chip in my car radio and use it for navigation.
Instead of -
"In five mile, turn left"
I get -
"...miles, turn left"
This is due to some sort of idle volume related muting. For starters, make sure your audio sink profile is set to something meant for high quality audio, like AADP/A2DP. You do not want the HFP handset mode switching in.
I'll have a look if there's a specific setting in the configuration tool that would relate to this when it is in A2DP profile mode. But first, confirm it is actually set to that profile.
I'll have a look if there's a specific setting in the configuration tool that would relate to this when it is in A2DP profile mode. But first, confirm it is actually set to that profile.
Thanks for your reply 🙂
I've checked and I did have HFP Plug-in set to hands free and 1 mic, but changing this to 'No DSP' had no effect.
Unchecking all 'supported profiles', HSP, HFP1.5 and HFP1.7 had no effect.
Messing with AVRCP audio switching also had no effect - the description of one of them makes it sound like it will be ready faster if checked.
Attached are a few screenshots of some pages in the config tool.
I have previously played about in the timers section a lot to try and fix this, but I can't remember what I have tried, only that nothing worked.
I've checked and I did have HFP Plug-in set to hands free and 1 mic, but changing this to 'No DSP' had no effect.
Unchecking all 'supported profiles', HSP, HFP1.5 and HFP1.7 had no effect.
Messing with AVRCP audio switching also had no effect - the description of one of them makes it sound like it will be ready faster if checked.
Attached are a few screenshots of some pages in the config tool.
I have previously played about in the timers section a lot to try and fix this, but I can't remember what I have tried, only that nothing worked.
Attachments
Can you see any change in voltage (in reference to GND) on the Mute pin/line when the audio is muted or resumed with delay?
I might get one of these modules myself to investigate whether I can reproduce the issue.
I might get one of these modules myself to investigate whether I can reproduce the issue.
Yes. It seems when there is no audio, the pin is at 0V. Once I play audio, after approximately 1 second, it is pulled to 1.8V. After about 4 seconds without audio, it falls to 0V again.
I suppose it might be possible to pull this high to force it to never mute, if we can't find the solution in software. I've been playing in the config tool again (searching for mute), but I still can't find anything that had an effect on this.
If you have use for one, it would be great if I could pass the torch a bit 😀
I suppose it might be possible to pull this high to force it to never mute, if we can't find the solution in software. I've been playing in the config tool again (searching for mute), but I still can't find anything that had an effect on this.
If you have use for one, it would be great if I could pass the torch a bit 😀