ahmed98 Posted August 29, 2019 Share Posted August 29, 2019 Greetings. I run a Win 7 PC as a source to my Audioengine A5+ speakers paired to a Topping D50s DAC to stream FLAC music files. Wondering which option I should select from the given sample and bitrates. Link to comment
Popular Post esldude Posted August 29, 2019 Popular Post Share Posted August 29, 2019 My initial thought is 192/24, but I'm hazy on how Win 7 does all this now. I think it will internally resample anything not in the sample rate you select to that sample rate, and do a poor job of it. So if all your FLACs were from CD, I'd select 44/16 so no resampling is done. If they are in another sample rate then select that. I'm also not up to date on whether or not there is a Topping D50 driver file for Win7 which might bypass all of this. If there is use it, and the Topping should get the data rate the file is in. There is a driver file if you haven't installed it. http://www.tpdz.net/wdzn_detail/newsId=80.html lucretius and ahmed98 1 1 And always keep in mind: Cognitive biases, like seeing optical illusions are a sign of a normally functioning brain. We all have them, it’s nothing to be ashamed about, but it is something that affects our objective evaluation of reality. Link to comment
ahmed98 Posted August 29, 2019 Author Share Posted August 29, 2019 2 hours ago, esldude said: My initial thought is 192/24, but I'm hazy on how Win 7 does all this now. I think it will internally resample anything not in the sample rate you select to that sample rate, and do a poor job of it. So if all your FLACs were from CD, I'd select 44/16 so no resampling is done. If they are in another sample rate then select that. I'm also not up to date on whether or not there is a Topping D50 driver file for Win7 which might bypass all of this. If there is use it, and the Topping should get the data rate the file is in. There is a driver file if you haven't installed it. http://www.tpdz.net/wdzn_detail/newsId=80.html I am using JRiver music player just so you know. ☺️ Most my flac files are 24/196 and 24/192. Link to comment
Kal Rubinson Posted August 29, 2019 Share Posted August 29, 2019 1 hour ago, ahmed98 said: I am using JRiver music player just so you know. ☺️ Most my flac files are 24/196 and 24/192. I would play them at those rates. The Win7 settings are irrelevant if you are using Jriver with the DAC manufacturer's drivers. ahmed98 1 Kal Rubinson Senior Contributing Editor, Stereophile Link to comment
ahmed98 Posted August 29, 2019 Author Share Posted August 29, 2019 8 minutes ago, Kal Rubinson said: I would play them at those rates. The Win7 settings are irrelevant if you are using Jriver with the DAC manufacturer's drivers. Ah okay! Thank you for your insights! ☺️🙏🏼 Link to comment
yamamoto2002 Posted August 30, 2019 Share Posted August 30, 2019 These OS setting is used on “shared mode audio session” such as You Tube, Spotify, Skype etc. It is not used on “exclusive mode audio session”, apps (not OS) can change DAC sample format, as Mr. Rubinson said. 16bit settings: Limiter is applied when mixed signal magnitude exceeds 98.5 %. Dither is applied (16bit 2 LSB TPDF dither, even when input data is 16bit full scale signal and dither is not necessary) and 24bit PCM is truncated to 16bit. 24bit settings: Limiter is applied when mixed signal magnitude exceeds 98.5 %. Dither is not applied. So 24bit settings output signal is slightly more cleaner than 16bit. And 24bit is recommended even when playing 16bit PCM. I recommend 24bit 48000 Hz for You Tube watching, 24bit 44100 Hz for local music file playback. ---- If app uses Windows Audio Session API directly to play sound using shared mode audio, Surprisingly Window Audio Engine does not provide automatic resampling feature: resampling to shared mode sample rate should be performed by app. If app uses Media Foundation API to play shared mode audio, OS automatically resamples to target rate using Media Foundation resampler with quality=30. its conversion quality is reasonable (not best) and it is sharp roll-off linear phase. If app uses DirectSound API to play shared mode audio, OS uses slow roll-off linear phase resampler (conversion quality is lower than Media Foundation resampler, I think this is to improve throughput, reduce delay for better user experience of game sound effect). If app uses MM API to play shared mode audio, OS uses sharp roll-off linear phase resampler, and its conversion quality improvement patch is released on 2013 or 2015 ? I don't remember CatManDo 1 Sunday programmer since 1985 Developer of PlayPcmWin Link to comment
yamamoto2002 Posted August 30, 2019 Share Posted August 30, 2019 MME resampler patch number is KB2653312 Sunday programmer since 1985 Developer of PlayPcmWin Link to comment
Popular Post PAR Posted August 31, 2019 Popular Post Share Posted August 31, 2019 On 8/30/2019 at 12:45 AM, Kal Rubinson said: The Win7 settings are irrelevant if you are using Jriver with the DAC manufacturer's drivers. Just to clarify your excellent point for the OP, he needs to select the correct audio device settings in JRiver. Ctrl O/audio/audio device then check the appropriate setting offered for his DAC's driver using WASAPI or ASIO. If he selects Direct Sound then that will still use the Windows upsampler which ideally he should avoid. lucretius and Kal Rubinson 2 Link to comment
Kal Rubinson Posted August 31, 2019 Share Posted August 31, 2019 4 hours ago, PAR said: Just to clarify your excellent point for the OP, he needs to select the correct audio device settings in JRiver. Exactly. Kal Rubinson Senior Contributing Editor, Stereophile Link to comment
lucretius Posted August 31, 2019 Share Posted August 31, 2019 6 hours ago, PAR said: Just to clarify your excellent point for the OP, he needs to select the correct audio device settings in JRiver. Ctrl O/audio/audio device then check the appropriate setting offered for his DAC's driver using WASAPI or ASIO. If he selects Direct Sound then that will still use the Windows upsampler which ideally he should avoid. Yes. The driver provided is a standard Thesycon driver. mQa is dead! Link to comment
PAR Posted August 31, 2019 Share Posted August 31, 2019 The Thesycon driver is USB audio class 2. Class 2 is necessary to play bit rates over 24/96. It is also ASIO compliant . So, if you follow the path in my earlier posting, JRiver should ( I hope) offer you a menu with a choice of audio devices, one of which may be called something like " Thesycon ASIO" so check that one. There may be other options like Thesycon WASAPI, Thesycon WASAPI Exclusive and the default Direct Sound of course. You could also try the WASAPI options and see what sounds best to you. Note that these options can spread onto a second page of the menu i.e. " Show More". Link to comment
PAR Posted August 31, 2019 Share Posted August 31, 2019 NB: I mean the OP rather than you lucretius! Link to comment
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