maxmp
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List of Android Devices with Hi-Res Audio Support (Internal DAC)
maxmp replied to maxmp's topic in Using Poweramp - Q&A
From audio_policy looks like it supports hi-res. Granted, some devices have config OK, but no hi-res audio, but for meizus it's usually working (work for all my meizu test devices on snapdragons 600+ or MTKs). -
List of Android Devices with Hi-Res Audio Support (Internal DAC)
maxmp replied to maxmp's topic in Using Poweramp - Q&A
No. No. You can check via https://www.gsmarena.com see AUDIO section, it should state something like - 24-bit/192kHz audio -
Build 790 OpenSL HD output has no device (both device as phone and device as output device) filters - meaning - it doesn't know if the given output device supports hi-res or given phone supports hi-res at all. Build 709 has appropriate logic to filter out known non-hi-res platforms, phones, and output devices. While DAC actually is able to accept hi-res for speaker, speaker itself is not able to produce any meaningful hi resolution audio and this is specifically disabled / filtered out. This is a good thing, as hi-res require 4x CPU (or more - e.g. 384k is 8x) processing power vs standard definition audio, you surely don't want to waste your battery this just for numbers in UI.
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@XrayDoc88 Strange, I PM'ed you, so you should be able to reply. Thanks! @slayman Can you please also PM me with your google accout (which PA was purchased for)? Thanks!
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@sethnet Thanks for the configs. They are the same as P20 which is tested and which works fine with 709, I wonder why it fails for View 10. Will try to get this device on hands and test. @Reiza Unfortunately, Snapdragon 4xx series has no hi-res output (not sure why Aqstic is mentioned on that page - probably there is an error as no any mention of Aqstic in 435 specs PDF). Your configs contain references for Hi-Res, but as this is custom ROM, they just cause extra resampling from hi-res back to standard res. Nevertheless thanks for the configs.
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@XrayDoc88 Let's try to check your license - just PM me with your google account - I'll check shortly. Thanks!
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@Noobie Please go to Audio => Output => Hi-Res Output and hit Restore Defaults. Also check if you have DVC enabled as from your description you have it Off (DVC should be indicated under Poweramp frequency analyzer). Generally, Xiaomis on Snapdragon works fine with Hi-Res and DVC.
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Poweramp just have huge "grace period" i.e. time it continues to work despite license check failed by Play. Other apps will fail immediately, but Poweramp allows app usage even if license can't be checked at the moment. Exept for this and permanent license storage there is no difference vs standard Play license checking, and this can be only changed in the way of tightening/reducing the grace period. (By default Play asks to recheck license every few days.) All the cases with "license failed in airplane mode" that was investigated shown that given customers had no valid license at all (refunded, cancelled by google, or card declined, etc.) Poweramp still continues to work in this case, but fails to do the second check (within 24 hours from purchase), and license checking is continued until grace period ends (can be weeks for infrequent player usage). No connection means checking can't happen and error is shown earlier. This approach works well for users with the valid license, but unfortunatelly, is less friendly to users without valid license, and I'll try to change that by reducing the grace timeouts and showing the error earlier in next Poweramp releases.
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Poweramp build-589 INTEL ONLY VERSION 589: fixed issue with Android 6.0 @ Intel based devices
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Can you please send (PM) your /etc/audio_policy.conf file and build.props file? I'll check if adding Hi-Res is possible for this device. Thanks!
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Version 703/704
40,718 downloads
Poweramp v3 (ALPHA-3 test builds 703 / 704) for standard (ARM-based) Android devices. Released: 16 April 2016 This is alpha version of upcoming major Poweramp release. Please make backup of your existing Poweramp app/settings/db before installation as you won't be able to rollback to Poweramp v2 without alpha uninstallation, causing settings to be lost. You can install it over your existing v2 installation (your purchase and settings will be carried over). At this time, only ARM processors are supported. We'll add Intel support for later beta builds. Min. supported Android: 4.1. Skins are disabled in alpha as UI is partially changed and there is no point in (re-)building skins now. Alpha-3: - added DVC support for Hi-Res Snapdragon 24-bit PCM variant (e.g. LG Gx/v10, HTC A9, etc.) - Hi-Res support for Sony Z3, Meizu 5 Pro, Lenovo Vibe X3 - Look and Feel / Status Bar/Notification / Notification Colors option to override non-standard ROM notification colors - mp3 vbr seeking improvements - 2 Hi-Res API variants (Sony Hi Res and Snapdragon 24-bit offload) for Sony Z5/P - option to always process/send album art (useful for smartwatches) - bt pause/resume polishing - scrobbling fixes, removed obsolete ScrobbleDroid support - album art downloading update - language selection fix - better current output device detection (wired headset vs bt) - other few small fixes -
List of Android Devices with Hi-Res Audio Support (Internal DAC)
maxmp replied to maxmp's topic in Using Poweramp - Q&A
Yes, in setup you described the only resampling happens in SoX then (DAC works at 96khz), no any other intermediate resampling. -
No, Poweramp can't modify ROM, and on Nexuses, despite capable hardware, it's disabled on software level.
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Why do you think it supports Hi-Res output?
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List of Android Devices with Hi-Res Audio Support (Internal DAC)
maxmp replied to maxmp's topic in Using Poweramp - Q&A
Unfortunately, Z3 will resample to 48khz anyway. There is only one DAC clock, so it works on multiples of 48khz, always. (Then delta-sigma DACs will oversample to very high frequency and quantize all those 24/16bits to 1bit). Android audio system, though, can work on 44.1 or 48khz, so no resampling will happen in Android in this case (but it will still resample on lower levels to DAC 48khz). It's debatable if Qualcomm DSP resampling is better/worse vs Android resampler. -
Usable bit width is hard to measure independently - it can measured vis SNR, but there are to many factors which affect SNR (most DACs are 24/32 bits nowadays, but there is a noise in lower bits anyway for most audio content), but sample rate is easy to detect. Axon mini is marketed to have the almost the same DAC/audio 32bit chip as Pro. Axon mini produces max 48khz. I will try to obtain Pro model for tests, but that will certainly take some time (as they are available in selected parts of world).
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While ZTE Axon series of smartphones have (as claimed by ZTE) capable hardware, I wasn't able to get anything beyond 16bit/48khz from that device (tried Axon Mini @ 5.1.1). May be 6.0 (when official OTA comes) will change something. ZTE only claims HiFi support - this is not Hi-Res.
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The point of Hi-Res is not just reproduction of frequencies above 20khz. It's mostly about moving various noises well above hearing range (this is what DSD exploits also). On modern smartphone level hardware this results in "clarity", "clear sound" for Hi-Res enabled devices. You can hear difference in midrange headphones, e.g. Sony mdr-1. The increased sample bit width (24bit) also gives benefits, though, that may be harder to hear. Difference can be noticeable even for non-High-Res tracks. It may be even more apparent on non-Hi-Res tracks due to (44.1->48khz) resampling, always associated with smartphone level DACs. Only very limited number of smartphones have DUAL (44.1/48) audio clock and can output standard definition audio without associated resampling, e.g. Samsung S7. It can be easily checked in Poweramp as you can enable/disable/enable Hi-Res output and hear difference immediately.
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build-702 Hi-Res should work on v10 even on 5.x androids Meizu Hi-Fi is supported by (debug) build 703, soon to be released Unfortunately, "same" hardware/chips or even hi-fi/hi-res DAC installed in the device means nothing if the OEM doesn't support Hi-Res. There will be missing Hi-Res support starting from firmware/kernel to Android AudioFlinger. Basically, Poweramp can't add Hi-Res if device doesn't support it. For Moto X the OEM doesn't claim any support for Hi-Res audio (https://www.motorola.com/us/motomaker?pid=FLEXR2#moto-x+1-story-specs). Ultimately, this is checked by playing 24bit/192khz sine sweep file in stock player and capturing/analyzing the resulting audio (as some devices, while claiming Hi-Res capable hardware, doesn't actually go beyond 48khz, like ZTE Axon mini).
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Afaik, no asus zenfones support Hi-Res Output. Your screenshot shows Hi-Res playback (which is supported by Poweramp v2 as well), but device output is still limited to max 16bit/48khz.
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Unfortunately, Samsung Alpha series has no hi res output (no UHQA, as Samsung calls it, support).
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Nexus 5 has no Hi-Res output, sorry. Same for S3.
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Yes, as headphones (wired headphones/aux 3.5 jack) requires internal DAC capable of Hi-Res playback. The debug Poweramp build now has support for Lenovo HiFi 16bit/192khz output (Android 6.0). It's much better than standard output, even with just 16bit resampling. When Hi-Res output is activated in that debug Poweramp build, HiFi output is used, no matter if the HiFi system switch is enabled or not. From this link, Z2 has no internal Hi-Res DAC: As for Z3, I'll test it soon, most probably support will be added.
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Still, even with 24=>16 resampling by Lenovo (I guess, this is due to Dolby being 16-bit only, it supports 192khz though), Hi-Fi audio path is better, and I'm adding separate "Lenovo Hi-Fi" variant into Hi-Res output plugin (Android 6.0+).
