More > JRiver Media Center 22 for Windows
SoX, upsampling filters, MQA, etc.
tyler69:
Ah understood, thanks. So the filters and graphs posted are used in resampling only?
Mitchco:
Fyi: http://archimago.blogspot.ca/2016/07/musings-digital-interpolation-filters.html
Matias:
--- Quote from: JimH on December 15, 2017, 07:29:08 am ---Making more noise isn't going to change things.
https://www.computeraudiophile.com/forums/topic/37893-jriver-sox-upsampling-parameters-call-for-1/
JRiver's focus is on delivering the original sound as faithfully as possible, and not on providing lots of tools for tinkering with the sound.
Some of the more esoteric tools just lead from one rabbit hole to another. That's not our thing.
--- End quote ---
@JimH
1. I understand JRiver feature request is influenced on +1 requirements, as we previously had features implemented because of multiple +1s. So I see nothing wrong if I gather support for it elsewhere ("making noise").
2. Delivering as faithful is subjective now, isn't it? Linear phase brickwall filter has lower THD (good) but worst impulse response (bad). Minimum phase slow roll off has higher THD (bad) but better impulse response (good). Again, give us the OPTION to choose it (both on local and DLNA playback). Leave your preferred setting as default setting if you wish. Bury the option in an advanced menu if you like. Doesn't matter: just give us the option which is there implemented in SoX already.
Most DAC manufacturers "tinker" with upsampling filters. All your competing software have this option too. The most popular hi-fi magazine Stereophile measures and publishes the filter implementations. Why does JRiver insist this is not relevant?? ?
From JRiver main website:
Why JRiver?
For the purist
Because the sound engineered into the CD is the sound you will hear when you play the audio. No changes are made to it by JRiver. Nothing will come between you and the recording. The promise we deliver is fidelity and ease of use.
For the person who likes to experiment
If you need to manipulate the sound, you can use JRiver to modify playback. Upmixing, downmixing, bitdepth, speaker control. Because the audio path is fully 64 bit, any adjustments to volume, bitdepth and sample-rate are mathematically lossless.
Isn't this your core value, "earned the respect of many leading audiophile manufacturers and their customers"?
JimH:
Matias,
I don't wish to argue with you. I just think you're off in the rough. I don't think your statement about our competitors is accurate. Maybe you have a different view of who they are.
I think you've said quite a lot about this subject and tried to organize support for it. I just don't see this as an important area to work in.
Did you read Archimago's article that Mitchco referenced?
Matias:
JimH,
I did read Archimago's post. He explains it quite well. Although the subjective parts always state "IMO (in my opinion)" and "I suspect". He even did a blind test, nice.
On the other hand, all these high end DACs have minimum phase slow roll off, as seen on Stereophile:
* Ayre QX-5 (saw the PDF I linked above?) https://www.stereophile.com/content/ayre-acoustics-qx-5-twenty-da-processor-measurements
* Bryston BDA3 https://www.stereophile.com/content/bryston-bda-3-da-processor-measurements
* Mytek Manhattan https://www.stereophile.com/content/mytek-hifi-manhattan-ii-da-preamplifier-headphone-amplifier-measurements
* Auralic Altair https://www.stereophile.com/content/auralic-altair-da-processor-measurements
* dCS Rossini https://www.stereophile.com/content/dcs-rossini-player-rossini-clock-measurements
* T+A DAC8 https://www.stereophile.com/content/ta-elektroakustik-dac-8-dsd-da-processor-measurements
* BelCanto Black https://www.stereophile.com/content/bel-canto-design-black-amplification-system-measurements
* Meridian Prime https://www.stereophile.com/content/meridian-audio-prime-da-headphone-amplifier-measurements
* Luxman DA06 https://www.stereophile.com/content/luxman-da-06-da-processor-measurements
* MSB Diamond DAC IV https://www.stereophile.com/content/msb-technology-platinum-data-cd-iv-transport-amp-diamond-dac-iv-amp-da-converter-measurement
* AMR DP777 https://www.stereophile.com/content/abbingdon-music-research-dp-777-da-processor-measurements
* Esoteric D-07 https://www.stereophile.com/content/esoteric-d-07-da-processor-measurements
* PS Audio Directstream DAC filter options: http://www.psaudio.com/forum/pwd-topics/filter-setting/Just to name a few. Plus MQA itself is all about it. And their filters are optional. Do their opinions count too?
As for software upsampling competitors:
* Roon https://kb.roonlabs.com/DSP_Engine:_Sample_Rate_Conversion
* Audirvana https://audirvana.com/?p=4015
* HQPlayer http://www.signalyst.com/consumer.html
* Foobar free plugin https://sourceforge.net/projects/resamplerv/
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