SynekPablo
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Posts posted by SynekPablo
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22 hours ago, Airwind said:
@SynekPablo oh，i see.you must be a kind man.thx for your patient explanation!!
I am also always happy when I have questions and find someone who wants to help seriously.
Therefore, I behave as I would expect from others.
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On 7/3/2019 at 6:03 AM, Airwind said:
@SynekPablohi,happen to find your reviews so minute&professional!! my axon 7 had just degrade to andriod 6 from 7,in order to enjoy better sound quality.but then i start to confuse that why the variant display shows 'snapdragon pcm',instead of 'direct hd'(in andriod 7 it was)??i can feel the sound improved now, by the way.
Yes, that's how I perceived it with the sound quality.
The Axon 7 played best with Android 6, and the overall performance of the Axon 7 was best on Android 6.
I think that it is due to the poor implementation of Android 7 and 8 and that in turn have the software developers to borrow.
According to consistent reports, the U.S version has not deteriorated after the upgrades of Android.
There was also another developer team at work.
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5 hours ago, Seve-s said:
There are always two opinions - one wrong and the right one is mine.
A person's opinion can be neither right nor wrong. That's the special thing about it. Maybe you'll understand that someday.
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4 hours ago, Seve-s said:
I am not here to convince you of anything. I have my opinion and you have yours. Is there at least one point where we agree?
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7 hours ago, Seve-s said:
Codec AK4961 can not affect the DAC AK4490. Never and never, under any conditions. It only works for conversations, speakers and mic. only. The DSP function makes the SD820, more precisely the Hexagon DSP core.
It's not very difficult to see datasheets, is not it?
Axon 7 is equipped with headphones amplifiers TI OPA1612, again codec does not participate.I have this information from a ZTE developer. He has worked in software development for the AXON 7 G model. If somebody should know then He.
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57 minutes ago, Seve-s said:
You confused the names: AKM 4490 is DAC chip, AKM 4691 is codec. They can not work at the same time. AKM 4490 is a power DAC, but the power of the system is not more than a weak player, consequently 24-bit / 192kHz.
Since you're right, the two reversed. Sorry. The AK 4490 first provides the necessary power to signal in Hi Res. For this he needs a DSP and a codec to process the signals optimally. The AK 4961 takes over. That means as much as, the two works always at the same time only that they do not do the same. Did you wonder why the stock music player is only used to select a track? The equalizer is DOLBY ATMOS. The reason is simple and logical, it should make sure that the audio file is in no way influenced by the Music App. The audio file should be clean when it reaches the AK 4961. This should ensure the best possible AKM quality.
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On 5/29/2018 at 6:30 PM, maxmp said:
It's quite old device, hard to get now. I have ZTE 7 Mini, which has no Hi-res (while having the same DAC), and ZTE Nubia 17s, which has up to 384khz and works in PA just fine.
From your audio_policy for Axon7 it should work with PA.
What is your Android version and ROM if you have any custom one?
If you have installed a custom ROM on the AXON 7, you often experience problems with the AKM DAC. The AXON 7 has an ADVANCED AUDIO DSP CODEC (AKM 4490) and the DIGITAL ANALOG CONVERTER (AKM 4961). When the Official Stock Rome is installed then the ADC and DAC are working great. I think that has something to do with the internal code that allows ADC and DAC to work optimally together. A custom rome changes this code, which means that the ADC and DAC can no longer work optimally together. In the specs of AKM AK 4961 this is 32bit and 768 kHz dedicated DAC. This can do this but there is a lock that allows a maximum of 24bit and 192 kHz. In addition, a Class G Cap was installed so that the power of the DAC comes to its best advantage. The sound of the AXON 7 is optimal only with the Stock Rome. Any change made by a custom rome affects the sound of NEGATIVE.
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On 7.5.2018 at 11:24 PM, wannaskoo said:
1) Zte Axon 7
2) AospExtended Oreo 8.1 (but also LineageOs 15 when it comes out, it will include zte's Oreo blobs)
3) AK4490 DAC and AK4961 DSP. This audio chipset should also have a dedicated amp, but i'm not sure.
Yes the AXON 7 has a dedicated amp.
The AK 4490 DAC controls the amp before the signal goes out over the 3.5 jack.
This is a class G cap
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Hi,
I am using AXON 7 and Hi-Res support works very fine. It also plays files with 32bit and 192 kHz.
Requests for Hi-Res Support (please state which build of Poweramp you are using)
in Poweramp Feature Requests
Posted
hi, I also use the Fiio BTR3.
However, the HWA / LHDC codec, but the Fiio BTR3 plays Hi-Res audio with a maximum of 24 bit and 96 kHz.
Can you access the developer settings of your phone?
There you can make the Bluetooth audio settings like sample rate, bit depth, codec, audio quality and latency.
You can also download the Fiio Music app, the settings that you keep there are stored on the BTR3.