Jump to content

Seve-s

Approved Members
 View Profile  See their activity

  • Posts

    37

  • Joined

  • Last visited

 Content Type 

Profiles

Forums

Blogs

Gallery

Downloads

Poweramp Knowledge Base

База знаний Poweramp

Poweramp知识库

Poweramp Equalizer Knowledge Base

База знаний Poweramp Equalizer

Store

Events

Ideas

Posts posted by Seve-s

    Requests for Hi-Res Support (please state which build of Poweramp you are using)

    in Poweramp Feature Requests

    Posted

    10 hours ago, SynekPablo said:

    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.

    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.

     

     

    Requests for Hi-Res Support (please state which build of Poweramp you are using)

    in Poweramp Feature Requests

    Posted

    13 minutes ago, SynekPablo said:

    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.

    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.

    Requests for Hi-Res Support (please state which build of Poweramp you are using)

    in Poweramp Feature Requests

    Posted

    9 hours ago, Ecksdee said:

    Axon 7, pretty please? AFAIK Poweramp has never been able to output to the AK4996 DAC at more than 48k. Neutron is able to output 192k/24 without too much trouble.

    I guess it'd not be easy to output hi-res properly on this phone because ZTE has these weird quirks here and there, but if you need any file from the system i can definitely fetch it for you.

     

    edit: on another note, i can't actually find audio_policy.conf under /etc... I have audio_effects.conf though. No idea why, maybe it's 8.0 related, or because i have V4A?

    its name can be audio_policy_configuration.xml

×
×
  • Create New...