Bowers & Wilkons PX7: "Qualcomm aptx adaptive codec" is not working - OnePlus 7 Questions & Answers

Hey!
I just got my Bowers & Wilkons PX7 headphone.
If the Adaptive Codec is activated, there is no sound at all.
I would be happy about a troubleshooting or something.
Greets.

I think I saw your post over at the oneplus forums, but I'm having the same problem as you.
I tested the headphones on my oneplus 3t and aptx HD worked perfectly. There's even a transparent overlay when the headphones connect letting you know the audio is in HD.
THis is a no go on the oneplus 7pro.
I've created a bug post on their forums, let's hope it gets some attention (it likely won't as there aren't many of us using this tech yet!)
https://forums.oneplus.com/threads/qualcomm-aptx-adaptive-audio-doesnt-work.1129695/
May I ask what OS you are using? I'm wondering if this is an Android 10 issue or if this existed on 9.x. I didn't have the opportunity to own these headphones before I had A10

The aptX HD codec is not the same as aptX Adaptive. While aptX HD has been around for awhile and is widely supported by devices using Qualcomm chipsets, aptX Adaptive is a brand new codec that as of yet has not been implemented in hardly any headsets. In fact, I think the Bowers & Wilkins PX7 is one of, if not the very first shipping headset with the new codec. I've used at least 2 or 3 wireless headsets on my OnePlus 7 Pro that utilized aptX HD without any problems. However, I am still on Android 9, so if you're on 10, perhaps the problem could be related to that...

Related

AUKEY Wireless Headphones and AptX on Oreo

I got the EP-B40 from aukey and I was prepared to use the AptX capabilities with the pixel with android 8.
https://www.amazon.com/gp/product/B06ZZSQQTD/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1
in development tools, I can see that they only connect using SBC. and this made me sad. anyone has any experience with forcing a codec?
i am not actually sure that they support aptx despite being advertised as aptx capable.
just tried with another phone and checked logcat and it also only connects with SBC. so it appears this headset does not support aptx.

AptX HD and LDAC

I have an older Motorola Z Play running Oreo 8.0. The Developer Options do show AptX HD and LDAC as selectable codecs. I recently got a Bluetooth receiver allowing AptX HD. However, when I tried transmitting HiRes Audio my phone would not hold the AptX HD setting, and kept the AptX setting. I contacted Motorola and the agent told me the phone was not capable of this. Does this make sense? Is it possibly because it doesn't have a Bluetooth 5.0 chip? I am nearing the need for a new phone and was curious about the Motorola g Power and chatted with an agent. Again, I was told that the g Power, several years newer, and running OS 10, that it also does not support AptX HD or LDAC. Can someone explain why this may be on both situations, and if there is any work around? I'm assuming it may be hardware related and Motorola not using a Qualcom BT chip, but I'm relatively naive. I know if you're really an audiophile transmitting over Bluetooth is not ideal, but it would be nice to get the highest resolution while doing so.
Thanks for any information.

[Q] Can anyone else confirm Qualcomm "aptX adaptive" backward aptX HD compatibility is broken on Android?

I recently bought certified AptX Adaptive earbuds (Soundpeats H1), and while the official Qualcomm website says the AptX adaptive is backward compatible with both AptX and AptX HD, on my pixel 3 dev menu only AptX is detected (AptX HD is greyed out and can't be selected). Other AprX HD only options like 24bit audio are also greyed out.
I contacted the Google support service but they seemed unaware of the issue, and told me to contact the earbuds brand. But the earbuds work fine, and they truly are AptX adaptive, so I don't see how that could be an issue with them.
So I wanted to know if other users have been facing the same issue or if it's only me.
My Android is non rooted and up to date, if that's any importance.
Stremon said:
I recently bought certified AptX Adaptive earbuds (Soundpeats H1), and while the official Qualcomm website says the AptX adaptive is backward compatible with both AptX and AptX HD, on my pixel 3 dev menu only AptX is detected (AptX HD is greyed out and can't be selected). Other AprX HD only options like 24bit audio are also greyed out.
I contacted the Google support service but they seemed unaware of the issue, and told me to contact the earbuds brand. But the earbuds work fine, and they truly are AptX adaptive, so I don't see how that could be an issue with them.
So I wanted to know if other users have been facing the same issue or if it's only me.
My Android is non rooted and up to date, if that's any importance.
Click to expand...
Click to collapse
Might be a bit late to reply... But it seems that aptx adaptive is only backwards compatible one way - an aptx adaptive phone can transmit to aptx hd headphones, but an aptx hd Phone can't transmit to adaptive headphones.

aptx Adaptive compatibility

Hello!
Is the Oppo Find X2 Pro compatible with aptx Adaptive?
I bought some earbuds (Bang and Olufsen Beoplay EQ), which are compatible with it. But I can hear no sound, unless I switch the codec down to aptx..... Which is two times a pain, first because I have to downgrade the connections, and also because I have to manually do it every time!
I asked B&O support and they are blaming the phone saying it's not compatible -_-
Can someone confirm whether the phone is compatible or not?
talofen said:
Hello!
Is the Oppo Find X2 Pro compatible with aptx Adaptive?
I bought some earbuds (Bang and Olufsen Beoplay EQ), which are compatible with it. But I can hear no sound, unless I switch the codec down to aptx..... Which is two times a pain, first because I have to downgrade the connections, and also because I have to manually do it every time!
I asked B&O support and they are blaming the phone saying it's not compatible -_-
Can someone confirm whether the phone is compatible or not?
Click to expand...
Click to collapse
I have find X5 pro and it is compatible with aptx adaptive. My bowers and Wilkins pi7 connected to aptx adaptive no problem. But when I connect my beoplay EQ it auto detects as aptx only. I think the fault is with the EQ

Question Bluetooth codecs?

Trying to find info about the BT codecs it supports, and not having much luck.
When i look in developer menu, aptx and ldac are both there, no aptx hd though? i don't have any ldac headphones.. will they actually work (full ldac support) on this phone if i did buy some?
Also, my Pixel 3a xl would output 48khz when in aptx, but it only shows as 44.1 on this phone?! cannot pick 48khz, not that i'd probably hear the difference
Thanks for any info.
LDAC works on both my WH-1000XM3 and WF-1000XM4. Sad that aptX HD doesn't work (at least, there is no way to tell whether it is HD or just normal aptX).
For most music though, 44.1khz is better than 48khz since CDs are at 44.1khz.
themostunique said:
LDAC works on both my WH-1000XM3 and WF-1000XM4. Sad that aptX HD doesn't work (at least, there is no way to tell whether it is HD or just normal aptX).
For most music though, 44.1khz is better than 48khz since CDs are at 44.1khz.
Click to expand...
Click to collapse
That's good to know about LDAC working ok.
Thanks for the reply.
Thought i'd add a confirmation from myself.
Recently got a pair of Sony XM4s, and LDAC is perfect on this phone..when you've enabled it
Lovely headphones btw..

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