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База знаний Poweramp


Poweramp Equalizer Knowledge Base

База знаний Poweramp Equalizer

Everything posted by quirK

  1. Hi, I've submitted the bug via Google Forms. When checking the Info/Tags of an Ogg Opus file during its playback, the track gain is shown at a constant +5 dB regardless of the file. Is this a display bug? Does Poweramp use the Replaygain tag or the Opus gain tag, or prioritises one of them over the other (but of course using the respective reference level)? V3 build 823, Oreo 8.0.0, Asus Zenfone 3 ZE552KL
  2. I stand corrected. I was trying to leave some face, some space, for the hi res shills. But I admit I haven't refreshed my reading in recent months. The data does say that 48 kHz is actually better because the lowpass filter can be gentler when tapering off from 20 kHz to 24 kHz. But that's because of the Fourier transform. Brickwalling right at 22.05 kHz would introduce more obvious ringing artifacts. Other than that, 16 bits is more than enough for playback. It is more than the difference between the softest whisper and standing next to a jet turbine. That said, if 24 bits can be had for no extra financial and processing cost, why not? Sad fact is that 24 bits is purely marketing, to increase the damn costs. Only studio engineers need to use it, for DSP headroom. The end listeners don't.
  3. The weakest link in an audio chain is the speakers or the headphones. So that's where you find the biggest improvement and pleasure in your audio journey. I have to caution that you're still only referring to your subjective experience. The answer to the "problem" of mp3 is not high res. The problem of mp3 is not low res, but suboptimal frame sizes and sfb21 bitrate bloat that affects 16 kHz and above. It suffers from pre-echo due to the first, and deprivation of bits below 16 kHz due to the second, if the lowpass is not low enough. The answer to mp3 is the modern codecs that were designed to overcome its specific weaknesses, or designed after years of dealing with psychoacoustic models, transforms, and filters, and learning about minimising the non-linear artifacts that arise from using them. These codecs today are lc-aac and opus, opus being unencumbered by patents. If one is sensitive to the various artifacts of lossy codecs, they can go on to lossless codecs like FLAC or ALAC, FLAC being unencumbered by patents. The sufficiency of 16-bits and 44.1 kHz has been proven by hard research data again and again. Perhaps a handful of people can go beyond, and even so, it's more likely that they are simply _different_, not better. There is no need to envy them or to try to be like them. The latest audio technology was created because of people who did correct science. Why then, may I ask, do you insist on applying anti-science when promoting high res as a magic potion? Is it wrong for Poweramp to playback high res? No. If technology improves and creates a bigger buffer against mistakes made in studio mixing and recording, then we should move in that direction. Is it wrong to falsely claim that high res is audible? Yes.
  4. Sad to see the anti-science high res pushers in here too.
  5. https://ask.audio/articles/music-theory-432-hz-tuning-separating-fact-from-fiction Might as well make a plugin that converts to any frequency of one's choosing.
  6. Glad to see this post, I bought the ZE552KL, same audio codec, but jumped straight to Nougat and was surprised to see no Hi-Res. Should I also post audio_policy.conf?
  7. Try modifying build.conf and audio-policy.conf to see if that will work?
  8. Hi, Xperia M4 Aqua (E2353, 5.0, 26.1.A.2.167, unlocked bootloader, TWRP, rooted) works once the relevant lines for high-res audio or 24_bit audio are added to build.conf and audio_policy.conf. The build.conf was edited based on a copy that someone pasted in one of these threads. (just the compress-offload line, as well as the deep-buffer one for the heck of it) The audio_policy.conf was edited based on these files that are supposed to work with CM12.1 and 13 and not original ROMs. I carefully added just enough samplerates, formats and devices that refer to high-res audio in any way, did a restart, and Poweramp began to sing. Didn't seem to need the mixer_paths.xml . http://forum.xda-developers.com/m4-aqua/themes-apps/cm12-1-13-192khz-24b-hi-res-audio-m4-t3377706/ There is no lag when using the Sony API, but clipping may occur unless clipping protection is used in Replaygain. There is volume change, track change and seeking latency when using the default Snapdragon, but no clipping ever occurs. 1st image - no resampling, "OEM Variant" option checked 2nd image - no resampling, option unchecked 3rd image - resampling to show highest samplerate support 96000, option checked
  9. Is it possible to check if there is capable hardware and the required software support for Hi-Res on the Xperia M4 Aqua?
  10. Can I request Opus support. http://www.opus-codec.org/comparison/
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