Develop Bugs

[Q] 3.5mm Stereo A2DP Bluetooth Headset Handsfree MP3

Hi There,
It's very first time I would like to buy and use bluetooth headset. I would prefer the BCK-08 Bluetooth Stereo Headset, please see features below:
* Listen to your music and take calls without wires
* 3.5mm audio jack for Customized Earphone
* Remote control feature with Adjustable volume
* Buzzer function lets you know when a call is coming through
* Up to 10 hours of talk time AND 200 hours of standby time
* Standard: Bluetooth V2.0 class 2
* Supports Bluetooth headset, handsfree, A2DP and AVRCP profiles
* Controls various calling features with the push of a button
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Anybody is using it please give me some comments about the battery life, quality of sound and remote control. Is it compatible with O2 Atom Life?
Any comment is highly appreciate.
Thanks in advanced.

Blutooth with 3.5 Jack
hi, where did you find this, Iif I can find one I will test it for you. How much does it cost?

yasamin said:
hi, where did you find this, Iif I can find one I will test it for you. How much does it cost?
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You can find it everywhere on ebay. Actually, you can access this ebay link for more information http://cgi.ebay.com.au/ws/eBayISAPI...loc=closed_view_item&refwidgettype=osi_widget.
Because I am in Australia so I use Australian ebay. I think can find it on your localized ebay site. Is costs around 21 USD excluding shipping cost.

I have just tried mine out. The exact model you list, the BK 08.
It sounds good. I have only tested for a few minutes, but it paired up instantly and just worked. I have tried incoming calls, and it switches over to the call correctly and back to the music. The buttons work as expected, controlling calling and music playback.
I walked away from the phone to check the range, and I experienced a skip or two beyond 5m distance, but when in normal range of the phone, it's flawless.
More about the quality. I have reasonably good ears, having owned etymotic ER4s before now and consider myself a minor audiophile. From a limited listen, I have no complaints about the quality of the stream.
I was expecting to hear encoding artifacts as the material listened to was MP3, and afaik, the a2dp device will encode for transmission using the SBC codec. No obvious negative effects were detected with my admittedly average Technics headphones. If anything, the audio loses a little definition and punch. Not the same as a wired connection, but easily good enough for me.
I have enabled the a2dp registry tweak in the Kaiser tweak tool.
I bought from an ebay user called phone_base, paid £18 including postage, and received the item after about 18 days.
Very happy, and pleasantly suprised.

It wasn't so great on the train on the way home. I heard some little pops and there were more skips, so I did some more tweaks:
http://forum.ppcgeeks.com/showthread.php?t=7715
It is much better now.
Also, I realised there was no easy way to turn on/off the bluetooth stereo output, so I installed this:
http://forum.xda-developers.com/showthread.php?t=338263&highlight=a2dp
The only other problem is that Mort player doesn't support avrcp so I can't pause it with the headset. I might have a go at this later:
http://forum.xda-developers.com/showthread.php?t=274730&highlight=mortplayer+avrcp

USB audio

So I have a Fiio E10 DAC and it works fine with my nexus 7, but my N7 dropped like 2 feet and broke, so I don't feel like buying either a $100 dac or a new nexus 7 and I want the Fiio to work with my S3.
It powers the DAC and you hear the pop when it turns on but it won't play any sound...until I tried USB Audio Recorder app thingy and selected the Fiio as a test device for playback and it sent my own voice INTO THE DAC into my headphones..
So why the hell can that app send my own voice through to my headphones but I can't use the DAC on like the only phone ever to support USB DACs? and before someone sends me a retarded useless "the holy grail of android dac support thread" Iv'e already read it like 19 times and it's just a bunch of retardation where people post pictures and tell you what dac they got to work with their S3 or whatever. I want to know why my damn DAC won't work.

Here's very detailed proof that it works. on this stupid app that is for USB audio recording or whatever, and it only plays FLAC, WAV and ****
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Explain how it's fair that this is THE ONLY WAY TO GET SOUND OUT OF MY DAC
how come no one has even tried to get one of the most popular affordable DACs to even work with the S3?

Are you using an OTG usb cable?

edit: n/m

USB Audio to FiiO E17
Like others, I can confirm that the GS3 will play audio files using the USB Audio Recorder app out the USB connection to a FiiO E17 DAC. I used a straight micro USB to mini USB cable, not an OTG cable with shorted 4&5 pins.
However, it isn’t a great solution for a general music player. USB Audio Recorder is not really a full music player, and it plays only 5 file types (OGG, WAV, FLAC, AICC, and one other). But my music app on my PC (Media Monkey) won’t synch files to the GS3 that it doesn’t think the GS3 will play, which is most or all of those file types. So I can only synch files that I can’t play with USB Audio Recorder. I tested that it works by transferring a FLAC file with the GS3 as a “Storage Device.” So, it works but it isn’t a good general music player solution.

Skullcandy - Crusher Over-the-Ear Headphones [REVIEW]

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I use these headphones everyday for literally every audio purpose in my house, which includes my phone (HTC One), my console (PS3), and laptop. They are bid enough to give you all the bass you could want, and they are still light enough not to be an issue while moving around during my adventures. The cord is lightweight and also includes a mic on it that works for my phone and laptop. I've tried Bose and Beats By Dre and didn't notice anything that would make me want to spend an extra $200. This is the best bang for the buck for me for this style of headphones.I haven't had them long enough to know how long they will last but one thing I noticed was my old set broke because the wire got pulled from the speaker somehow. These speakers have a cord that can disconnect so they won't break. And if that wasn't enough to convince you how much I love these headphones I will get you 10 more reason.
The Over-the-ear design along with dual earcup are made for comfort during extended listening sessions. REX40 driver delivers a smooth frequency response with minimal distortion for clear audio that works great with the built-in Beats our HTCs have. Sensation55 bass extension driver provides powerful bass for a realistic listening experience if you wish to place the battery in the headset which in my opinion isn't needed. Neodymium magnets offer sound reinforcement that way we don't blow out of ears. Acoustical porting allows both drivers to move freely for increased bass and reduced distortion. Built-in amplifier features an auto on/off smart circuit that powers off the amp if your music stops or the headphones have been unplugged for 10 seconds. Amp automatically powers up once music is restored. Adjustable bass control which lets you control the sensation levels to your preference using the bass sensation slider on the left earcup. As I mentioned it includes In-line remote with microphone which lets you answer the phone or stop the music with just one click. Detachable cable that helps eliminate tangles, increases longevity, customizes your look, upgrades your microphone and can be used as an auxiliary cord for my TV when I'm gaming. Now those are all the selling points that draw me to this headset. Hope I change some peoples minds on REAL STUDIO QUALITY headphones
Price: $99.99
Height: 5-7/8"
Width: 3-3/8"
Depth: 8-7/8"
Weight: 1.1 pounds
Headphone Style: Over-the-ear
Sound Isolating: Yes
Magnet Type: Neodymium
Impedance: 32 ohms
Ear Cushions: Leather
Connector: 3.5mm
Cord Length: 4.3'
Folding: Yes

Thanks for the review.
How do they stack up to other over-the-ear type headphones?
Sent from my HTCONE using Tapatalk

Distortion on RCA out

Hi,
I know the MTCE are not known for their sound quality but anybody have distortion on RCA level out? Even set the gain at the amplifier to minimum I get distortion when the volume slider goes higher than 20.
Why is that? I also feel like frequency response sucks on the RCA.
Is speaker level better from your experience?
Will a line driver help in this case?
Thank you for your time!
Laurent

Maybe your rca s are like mine and have a groundloop.
If your amp has highlevel input, id try using them

Had the same issue. Went with a AudioSource Matrix Line driver that definitely helped a lot in Sound Quality. Not where I wanted, after the line driver there was still a little noise so I got noise filters and gone (ground loop isolators are the same thing). Noise was gone but sound was not there completely. So I went with a JBL DSP. night and day. So clean coming from a crappy Android Unit. lol. I dont care what anyone says. these android units are the best way to go. Just need to beef them up at the outputs to get them sounding amazing.

What do you mean by a "JBL DSP"? Is it a JBL Amp with DSP capabilities or just a straight DSP? Are you still using the RCA line-level outputs or did you end up using the speaker-level outputs?
Thanks.

jtrosky said:
What do you mean by a "JBL DSP"? Is it a JBL Amp with DSP capabilities or just a straight DSP? Are you still using the RCA line-level outputs or did you end up using the speaker-level outputs?
Thanks.
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Stand alone DSP.. I went with Audio Control Matrix to JBL Stand alone DSP. I used the RCA's but some noise filter on my single input to the line driver and then used the line driver to convert the signal since my line driver is also an EQ.. One (front) input and pushes my three outputs (Front, Rear and Sub). Sounds great but I recommend doing all three inputs and outputs. It boosts sound quality. I am waiting another set of interconnects to change from single input to three inputs.

Ok, thanks for the clarification. I gave up completely on my Eonon-branded Android 8 MTCE unit. Between the noise-related issues and the overall sound quality, I just wasn't happy with it. The WinCE unit I was coming from (Dynavin N7) just sounds *considerably* better, even when using the same external Kicker auto-tuning DSP amp and all of the same wiring in the car. So I've re-installed the WinCE unit and will use the Eonon for another project (creating a portable wooden "boombox" with the Eonon as the main "control center" and some component speakers I had laying around. Should make a nice portable do-it-all, touchscreen Android "media center".
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General XDA article: Google is bringing several new features to Bluetooth enabled audio devices

https://www.xda-developers.com/google-new-features-bluetooth-enabled-audio-devices/
January 5, 2022 1:00pm Aamir Siddiqui
Google is bringing several new features to Bluetooth enabled audio devices​Bluetooth-enabled hearables and other home audio devices have gathered great momentum in the past few years thanks to OEMs skimping out on the headphone jack on smartphones and the general increase in audio-only content like podcasts. There’s massive potential in this space, both for growth and for the technology to mature, and the growing interest from consumers and manufacturers is testimony to that. Google is now playing its part in the maturity of these product categories, as it has announced a range of new features for Bluetooth-enabled hearables and home audio devices that improves their utility within Google’s ecosystem.
Bluetooth Multipoint, but made by Google​Google is building a tech similar to Bluetooth’s multipoint, but for Chromebooks and Android devices. Google’s press release is sparse on details, but considering that Bluetooth Multipoint already exists and that the supported devices are going to be Chromebooks and Android devices, we suspect this is something that will leverage Google Play Services or some other proprietary solution.
“We’re building a technology for Bluetooth-enabled headphones that will enable them to automatically switch the audio to whatever device you’re listening to.”
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Google says that this audio switching will work in situations where you are watching a movie on a different device, and receive a phone call on a second device, the movie will pause and the headphone audio will automatically switch to your Android phone and then switch back to the movie when you’re done. This sounds very similar to what can already be achieved with Bluetooth Multipoint, so we are indeed curious to see what new tech Google is building to achieve this. This feature will be made available on supported headphones in the next few months.
Spatial Audio​Google is also bringing Spatial Audio features to supported headphones when used with Android and ChromeOS devices. Spatial Audio adapts sound based on your head movements, positioning the audio in the space all around you.
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Spatial Audio was a highlight feature for the Apple AirPods Max at its launch, and many attest to it being a more noticeable feature than lossless audio. This feature will be made available on supported headphones in the next few months, so we hopefully get to experience what the hype is all about.
Expanding Chromecast built-in to more speakers and soundbars​Chromecast is a nifty way to move playable content across devices. The most common use-cases for Chromecast have been sharing videos playing on Android phones to TVs with built-in Chromecast. But Chromecast is also useful for audio-only content as well, leveraging the speaker and soundbar ecosystem to more conveniently playback songs and audiobooks.
With this announcement, Google is bringing Chromecast built-in to more home audio brands, starting with all Bose smart speakers and soundbars in the next few months. We’re expecting more brands to be added to this budding list.
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