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    • andrewilley

      Poweramp v3 Project Update   04/24/2017

      As you may be aware, the Poweramp developer has been working hard on an updated material design user interface for Poweramp v3 which required a full ground-up rebuild of the code and is taking some time to get to a beta-test stage. See the forum thread for more details and to discuss.    

Timmy Fox

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About Timmy Fox

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    Advanced Member
  • Birthday October 5

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  • Gender
    Male
  • Location
    Sweden
  • Interests
    Tech, music, photography, furry fandom
  1. The time it needs.
  2. More than likely that difference is because it's two different versions of the same track and not just a plain 16bit vs 24bit. If you instead take the 24 bit file and downconvert it to 16bit and do a blind test to compare, I doubt you'd be able to hear the difference. All the bit depth does is affect the amplitude range. 16 bit is plenty for playing at a loud rock concert at full volume. By the time you would need more than 16 bits you would already be at the point where you'd have turned the volume up so loud either the speakers would have already broken or your permanently damaged your ears (if you're not already completely deaf by that point), whichever would come first.
  3. Oh pardon my misspelling. Harry Nyquist was born in Sweden as Harry Theodor Nyqvist. I'm not entirely sure why his last name is more commonly spelled as Nyquist and not Nyqvist but he may have changed it as he emigrated to the US. Either way here in Sweden the spelling with a v is the most common one and is an old/alternative spelling for the Swedish word "Kvist", meaning a piece of a wooden branch or a twig. Despite being spelled with a u, it is still pronounced with a hard v-sound due to said origin. A lot of Scandinavian last names have their origin in nature, actually. Either way, that is essentially a simplified version of how I was thought back in Electronics and Computer Sciences class. His proof shows that the lowest sampling rate required to accurately reproduce any given frequency is one that's twice of said frequency. Going higher (so called oversampling) does have some use in certain situations due to certain factors but as far as digital audio reproduction goes, 44.1 or 48 kHz has been proven time after time to be plenty.
  4. This is incorrect. More samples does mean more data but it does not equate to more detail. This does not work the same as, say, frames per second in a movie or something of the like. Having more samples per second is effectively just more of the same. As per the Nyqvist theorem, 2 samples per reproduced frequency has been mathematically proven to be enough to reproduce the recorded sound in its entirety. Adding more samples is practically just adding more dots to fill in an already perfect sine wave. This is the basically adding extra redundant points to a mathematical graph when you already have the proper points required to make a perfect sketch of said graph. Or with an oversimplification; Adding more samples (say 4X the samples instead of 2X) is practically the same as adding 5+5+3+3 = 16 instead of 10 + 6 = 16. It's adding redundant samples to fill in an already perfect sine wave.
  5. No. Flac is like a zip file, you can compress a wav into flac and then extract the identical wav file back from the flac file again just fine. The audio data that comes out of your headphones or speakers will be identical regardless if you use wav or flac. You're telling me my Sennheiser HD800 are not good enough headphones to hear the difference? Ok, let me ask you if you actually know what you are talking about. First off, let's address 192kHz vs 48Khz. If you're familiar with the Nyqvist theorem it is a scientific theorem that proves you need a sample frequency that is double that of which you wish to reproduce. This means that with 192kHz audio you can accurately reproduce sound with frequencies up to 96kHz. With 48kHz you can reproduce up to 24kHz frequency sounds. For a reference, the limit of human hearing is reached at around 19-20kHz though it gets lesser with age. If you've ever heard a mosquito, they emit sounds at around 17kHz (and is thus close to the limit of the very brightest sound that your ears are physically able to perceive). A dog whistle, depending on type, emits sounds anywhere between 23 and 54kHz and are known to be impossible to hear by just about any human (the same way you can not see infrared not UV light). Thus proves that both 44.1 and 48kHz is, per the Nyqvist theorem, more than enough to accurately reproduce any sounds that fall within the audible range of human hearing. Any more is only necessary if you wish to reproduce sounds of dog whistles. As for bit depth (16, 24, 32 etc.) 16 bit audio is enough to natively reproduce up to 96dB of dynamic range. That is the difference between the loudest and quietest sound. 96dB is about the difference between a concert and complete silence. And I don't mean as in a quiet room in the middle of the night, that's still around 10 dB or so (a whisper is ~20dB), I mean complete silence which is only really achievable in special extremely insulated anechoic chambers. This 96dB figure however is not a true limit; There is also a technique called dithering which is applied to (without any loss of quality) increase this to an effective 120dB of dynamic range. This is the difference the complete silence I already explained and a sticking your ear right next to a jet engine. 120dB is loud enough to give you permanent hearing damage in seconds. Many consumer headphones and speakers will likely break before you exceed these levels of loudness anyway. Thus, 16 bit audio is enough to playback music loud enough to either break your headphones/speakers or permanently damage your hearing in seconds (whichever comes first).
  6. To be fair, high-res audio is more of a marketing ploy and a myth. I mean, unless you can actually hear dog whistles there is very little reason to go above the standard 44.1kHz ...
  7. Gingerbread? Damn, I hate to say it but you're probably due for a new phone.. That OS is over 5 years old and I don't expect any real support coming for it - rather more and more apps will stop being compatible with it. Supporting older Android versions, for developers, is just a major hassle that causes a bunch of unnecessary issues and time wasting with the only end result that people running a version that's like half a decade old can use the app.
  8. Huh, cause I have a faint memory of accidentally setting a rating on my PC on a song that showed up in Poweramp after I copied the file to my device.. I might be mistaken though, or perhaps it just reads rating tags but doesn't write to them?
  9. I thought this already was implemented? Perhaps it depends on what file type you're using?
  10. As has been said before, your best option is to contact Max directly via Poweramp.maxmpz@gmail.com rather than post on the community forum.
  11. That's strange because if DVC is turned off, the preamp is disabled/doesn't do anything so long as EQ is disabled.
  12. Consider the fact that Poweramp is an audio player. It's made to play music, not movies or videos.
  13. Is EQ turned on of off? Try turning up the preamp to the highest available setting, also try turning on the "limiter".
  14. Try disable DVC for Bluetooth; Settings > Audio > Advanced Tweaks > BT Direct Volume Control