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jumpingjackflash5

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  1. Hello, is it possible to enable native 44.1 playback on my moto G5s, so that I need not resample CD tracks in advance on my PC (16/44.1) to 16/48 sample rate to avoid resampling on mobile device - or better said avoid resampling at all? Thank you, log attached lower. Jan 08:06:45.167 v3-build-835-arm32-play Device: motorola motorola Moto G (5S) montana_n msm8937 [armeabi-v7a, armeabi] reading=/system/etc/audio_policy.conf has outputs_primary, sampling_rates=44100|48000 has direct_pcm, sampling_rates=8000|11025|16000|22050|32000|44100|48000|64000|88200|96000|176400|192000 direct_pcm AUDIO_OUTPUT_FLAG_DIRECT_PCM has direct_pcm formats=AUDIO_FORMAT_PCM_16_BIT has compress_offload, sampling_rates=8000|11025|12000|16000|22050|24000|32000|44100|48000|64000|88200|96000|176400|192000 has compress_offload formats=AUDIO_FORMAT_MP3|AUDIO_FORMAT_AC3|AUDIO_FORMAT_E_AC3|AUDIO_FORMAT_PCM_16_BIT_OFFLOAD|AUDIO_FORMAT_PCM_24_BIT_OFFLOAD|AUDIO_FORMAT_FLAC|AUDIO_FORMAT_ALAC|AUDIO_FORMAT_APE|AUDIO_FORMAT_AAC_LC|AUDIO_FORMAT_AAC_HE_V1|AUDIO_FORMAT_AAC_HE_V2|AUDIO_FORMAT_WMA|AUDIO_FORMAT_WMA_PRO|AUDIO_FORMAT_VORBIS|AUDIO_FORMAT_AAC_ADTS_LC|AUDIO_FORMAT_AAC_ADTS_HE_V1|AUDIO_FORMAT_AAC_ADTS_HE_V2 compress_offload AUDIO_OUTPUT_FLAG_NON_BLOCKING has usb has usb outputs has usb_device, sampling_rates=dynamic has usb formats=dynamic FLAG_NEEDS_EXTRA_SLEEPS FLAG_SUPPORTS_UNITY_GAIN_STREAM USB can handle Hi-Res - sdk=27 OK flags=0x214020700000000 FLAG_VARIANT_PCM_OFFLOAD FLAG_NON_BLOCKING_WRITE FLAG_SUPPORTS_PCM_24_OFFLOAD FLAG_SUPPORTS_UNITY_GAIN_STREAM FLAG_SUPPORTS_USB FLAG_NEEDS_EXTRA_SLEEPS FLAG_SUPPORTS_LDAC INTERNAL_OUTPUT_FLAG_SR_192K INTERNAL_OUTPUT_FLAG_SR_176K INTERNAL_OUTPUT_FLAG_SR_96K INTERNAL_OUTPUT_FLAG_SR_88K INTERNAL_OUTPUT_FLAG_SR_48K INTERNAL_OUTPUT_FLAG_SR_44K
  2. I don't know the internals of Android, but the concept of "application volume" and "system volume" ain't applicable for this OS? For sure there is a 16 bit, 48 kHz pipe that sound playback must go through in majority of Android phones, and we can adjust volume before that pipe or after that pipe. As I wrote now I am satisfied with the DVC sound, so I keep it on.
  3. Ok thank you that I also read and it supports the hypothesis that dvc controls the system volume instead of the stream that goes into 16 bit "pipe". Which would be good. But I think that it should better confirmed.
  4. Nobody knows the mechanism of Direct Volume Control? Sounds good but I would like to know how it works.
  5. Hello, I am using Poweramp latest version (paid) on Moto G5S. Generally I do not use any equalizers - I prefer flat playback, I know that resampling to 48000 Hz and dithering to 16 bit is neccessary on Android since my phone has no 24 bit support. When I disable DVC sound volume is lower and a little bit "thinner", whereas when enabled it is louder. When I started to use Poweramp I left DVC disabled, but recently with the new builds I enabled it and started to like the new sound better than with DVC disabled. I would like to ask what exactly the Direct Volume Control function does. Does really DVC just control the volume on hardware level, preserving maximum fidelity possible on Android? I have read somewhere that DVC acts like a compressor, that seems strange to me, since it would change the sound character of the track and would be very CPU intensive. On the other hand, if it works in such a way that it controls the volume at the phone DAC (or system) level and lets use the full 16 bit pathway (that is available) for sending the audio stream from Poweramp to android mixer, it can really help given that 16 bit dynamics is already at the edge of fidelity on playback, and if without DVC the volume reduction but be done within 16 bit stream it can make audio worse. So please experienced users explain.
  6. Hello, thanks for this great version. It may be my listening bias, but since this version I think that the sound is a little bit smoother and less grainy that I perceived with the some of previous versions. I use Sox, 95.4 (or 90.5 passband), modified-e-weighted dither, standard 16/48 headphone output on Moto G5S (Android 7.1.1)
  7. Yes that is true that the EQ etc. settings can be very useful. On the other hand is would be nice to allow "bitperfect" playback of AAC through bluetooth. Direct AAC (e.g. from ITunes or encoded from FLAC) has decent quality.
  8. that is a pity, therefore aac files are reencoded again to sbc or aac (whatever headphones support) which degrades quality :(
  9. Hello, does current Poweramp support direct (without reencoding) AAC (e.g. iTunes ) files playback over headphones that support AAC codec? If so how it can be set up ? Jan
  10. Hello, first to say: Poweramp is great for Android and I use the paid version. I have question about Resampler/Dithering. I highly appreciate this possibility with SoX since unfortunately Android now is limited to 16/48 output (i do not use external DAC with my phone). I have some files in 16/44.1 format and some files in 16/48 format (I use offline resampling beforehand for some tracks and some files I have in 48 kHz format native sample rate). I assume that Resampler only kicks in if the input file has different sample rate than 48000 Hz, if I play back 48000 Hz files it will do "nothing" and pass the stream to the DAC. That is correct behaviour. But what about dither? If I enable dither, will it dither only when resampling (e.g. from 44100), or maybe also when the source is 24 bit (regardless of sample rate), that would be great and correct behaviour (even the first possibility based on sample rate different than system rate of 48000 Hz would be sufficient and actually is more important for me). Or if I play back 16/48 file, will it dither "again" - that would be worse, because in that case I must probably disable dither so that my 16/48 files are not dithered "twice"? Thank you for information. Jan
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