More > JRiver Media Center 22 for Windows
NEW: SoX Resampling
jmschnur:
Does upsampling 44 to 96 make sense in this rendition of sox on JR?
AndyU:
Any chance of also using Sox to support playing back CDs that were recorded with pre-emphasis? This is an issue that applies to a small, but not insignificant, number of early CDs. You'd probably need to have a PREEMPHASIS tag to indicate which tracks to apply this to, and detect it when ripping if possible. I have a few CDs which I am pretty sure were recorded with preemphasis, as they seem to have an unnatural treble boost, but at the time I ripped them I was unaware of the issue. I think sox has a setting that can correctly de-emphasise.
Hendrik:
--- Quote from: AndyU on July 24, 2016, 05:26:10 am ---Any chance of also using Sox to support playing back CDs that were recorded with pre-emphasis? This is an issue that applies to a small, but not insignificant, number of early CDs. You'd probably need to have a PREEMPHASIS tag to indicate which tracks to apply this to, and detect it when ripping if possible. I have a few CDs which I am pretty sure were recorded with preemphasis, as they seem to have an unnatural treble boost, but at the time I ripped them I was unaware of the issue. I think sox has a setting that can correctly de-emphasise.
--- End quote ---
SoX Resampling does nothing but resample the audio, we do not use the full SoX tool, just their resampling algorithm. No other features are available to us at this time.
Batosai:
Hello,
I'm not that knowledgeable about the internal operations of DAC's but i thought using an ASIO connection through a USB interface it sets the DAC to the correct timing without upsampling if it can support the various playback rates?
I'm using an Pioneer SC-LX87 amp which has ESS SABER32bit Ultra DAC's in it. I have not checked if it does any other funny stuff when receiving the signal from the source but will try to found out. Quite an interesting discussion though :D.
Edit: Found a link to DAC http://www.esstech.com/index.php/en/products/sabre-digital-analog-converters/audiophile-dacs/classic-sabre-8-channel-dacs/es9016/
It appears to do:
32bit processing up to 192khz (have only need to upsample low quality files through JRiver when using ASIO)
Digital Filter: fast/slow roll-off frequency (this is an option within the amp, fast just speeds playback affecting speech intelligibility so i have it on slow),
DSP: De-emphasis for 32kHz, 44.1kHz, and 48kHz sampling,
DSP: Programmable Zero detect
DSP: Click-free soft mute and volume control.
Slightly curious 2 of the DSP options as to what they do and whether the amp allows me to set them, last one seems self explanatory though.
Thouston:
The new Sox Resampler sounds great. Thanks for implementing it. :)
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