CD-De-emphasis in R17 on Mac

[rnrmf]

Hi,

Thank you for adding the cd-demphasis feature.

Does the pop up screen (photo attached) mean that de-emphasis will happen automatically without adding the DSP effect? It doesn't seem to be working automatically, right now.

I ripped a disc that needs de-emphasis (and plays back properly on a CD player), but de-emphasis was only added when the DSP effect was added. It wasn't auto-added as the pop up suggests.

Just to confirm, I ripped a disc that did NOT need de-emphasis and de-emphasis was added with the DSP effect added.

Thanks in advance for clarifying.

[Spoon]

Re: CD-De-emphasis in R17 on Mac

You should not add the DSP effect in CD Ripper, if it is needed then CD ripper self adds.

[rnrmf]

Re: CD-De-emphasis in R17 on Mac

You should not add the DSP effect in CD Ripper, if it is needed then CD ripper self adds.

I can confirm that it does NOT self add to ripped files on MAC. I tried 3 discs that require emphasis and CD Ripper did not apply emphasis to any of them.

Is it related to the MAC version being unable to detect pre-emphasis in the "track technical" column?

https://forum.dbpoweramp.com/showthread.php?44436-quot-Track-Technical-quot-column-in-Mac-OS-X-CD-Ripper

[rnrmf]

Re: CD-De-emphasis in R17 on Mac

I also just read there's a fix in the beta of 17.1 in a different thread:

https://forum.dbpoweramp.com/showthread.php?44920-dBpoweramp-R17-1-for-Mac

[rnrmf]

Re: CD-De-emphasis in R17 on Mac

Further testing of the latest R17 beta indicates that CD Ripper is auto detecting and applying de-emphasis to compact discs with pre-emphasis in the TOC but not for discs with pre-emphasis in the subcode.
CD Ripper's "track technical" column reads "pre-emphasis" for those particular discs.

Playing compact discs with pre-emphasis in either TOC or subcode in a CD player still play back properly, in both cases.
Does software detection of pre-emphasis in both TOC and subcode pose a particular challenge that CD players are able to overcome but software cannot?

[Spoon]

Re: CD-De-emphasis in R17 on Mac

There are a few discs which were incorrectly created without De-emphasis highlighted in the toc, for those discs you can manually add the effect.

[LazLong]

Re: CD-De-emphasis in R17 on Mac

There are a few discs which were incorrectly created without De-emphasis highlighted in the toc, for those discs you can manually add the effect.

So, I guess this means that dBpoweramp only uses the TOC to detect pre-emphasis, and doesn't check the Q Channel bit for pre-emphasis on either Mac or Windows?

[Spoon]

Re: CD-De-emphasis in R17 on Mac

It was not worth while putting it in, there were only 2 cds in existence as far as I know that had a channel and no toc, they were mastered incorrectly.