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Topic: Convolver CD de-emphasis impulsefile (Read 9800 times) previous topic - next topic

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  • Wombat
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Convolver CD de-emphasis impulsefile
an impulse file to use with foobar convolver for example to do de-emphasis on CDs that were recorded with pre-emphasis, should be highly accurate

It is old and not based on the Waves impulsefile that was floating around.
  • Last Edit: 15 November, 2009, 01:09:21 PM by Wombat
Is troll-adiposity coming from feederism?
With 24bit music you can listen to silence much louder!

  • pawelq
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Convolver CD de-emphasis impulsefile
Reply #1
A simpler solution: foobar EQ de-emphasis preset
Ceterum censeo, there should be an "%is_stop_after_current%".

  • lvqcl
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  • Developer
Convolver CD de-emphasis impulsefile
Reply #2
Deemphasis impulse file generated by SoX: [ Specified attachment is not available ]

Quote
A simpler solution: foobar EQ de-emphasis preset

Simpler, but also less accurate (green line  - SoX, red - impulse from Wombat, yellow - fb2k eq.):
  • Last Edit: 14 February, 2013, 10:18:39 AM by lvqcl

  • pawelq
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Convolver CD de-emphasis impulsefile
Reply #3
Deemphasis impulse file generated by SoX: (Attachment Link)

Quote
A simpler solution: foobar EQ de-emphasis preset

Simpler, but also less accurate (green line  - SoX, red - impulse from Wombat, yellow - fb2k eq.):



Wow. You're right. I thought that foobar eq worked differently using smooth interpolation between center frequencies of bands. I should have checked it
Ceterum censeo, there should be an "%is_stop_after_current%".

  • pawelq
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Convolver CD de-emphasis impulsefile
Reply #4
Now, there is no quick way to enable/disable the convolver from the UI, like I can do with the eq. One has to go through preferences, DSP, etc. So I converted my pre-emphasized ogg to FLAC while convolving it with your impulse file, and I got rid of all the hassle at the expense of losing 200 MB of disk space :-).

Thanks again for showing me the frequency response of the eq, and for providing impulse files.
Ceterum censeo, there should be an "%is_stop_after_current%".

  • 2E7AH
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Convolver CD de-emphasis impulsefile
Reply #5
Now, there is no quick way to enable/disable the convolver from the UI, like I can do with the eq. One has to go through preferences, DSP, etc.

Save it as DSP preset and pin it to button or shortcut (in latest betas)

  • pawelq
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Convolver CD de-emphasis impulsefile
Reply #6
Now, there is no quick way to enable/disable the convolver from the UI, like I can do with the eq. One has to go through preferences, DSP, etc.

Save it as DSP preset and pin it to button or shortcut (in latest betas)



As I said, I already chose another solution. But out of curiosity - will this give me feedback so I can easily tell if the DSP is on or off?
Ceterum censeo, there should be an "%is_stop_after_current%".

  • 2E7AH
  • [*][*][*][*][*]
Convolver CD de-emphasis impulsefile
Reply #7
If you shift-click playback menu, active DSP is ticked in DSP settings submenu

  • Wombat
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Convolver CD de-emphasis impulsefile
Reply #8
I uploaded the sample for Aquares mostly. If he could find some time he may compare it like the other ones here: http://www.hydrogenaudio.org/forums/index....=65067&st=0
Of cause we still donĀ“t know how exact this Denon sourced reference file is but it may be fun.
Is troll-adiposity coming from feederism?
With 24bit music you can listen to silence much louder!