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Getting ready to transcode library to AAC
Eli
post Jan 18 2013, 14:59
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I am getting ready to transcode my ~2TB flac library to AAC-LC in an MP4 container and want to be sure I get it right.

My intention is to encode at ~96kbps TVBR with QAAC. The goal is for portability and streaming, and this seems to be a good quality level that will give reasonable listening (I still have the lossless archive).

Is TVBR widely supported? I know many years ago when I used to encode to LAME MP3 VBR ipods had a hard time with it.



I need to pick the right tool for transcoding and have some specific tasks that I want to achieve and can hopefully achieve all of them in one transcode step.

- Scale down album art automatically. Probably to <50kb and 500x500. Is this still to big?
--- 90+% of my albums have embedded and folder.jpg, a minority have one or the other. If they differ, I would like to scale down from the higher resolution one.

- Identify HDCD tracks, and encode to 24b on the fly

- Identify pre-emph files and de-emph

- Apply EBU R128 ReplayGain ( I still need to calculate EBU R128 ReplayGain values for my flac files)

Is there a tool that can do all of these?

This post has been edited by Eli: Jan 18 2013, 15:18


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spoon
post Jan 21 2013, 17:15
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QUOTE
I believe dBpowerAmp's DSP plugin system also lets you deal with ReplayGain when converting, though I'm unaware of whether it applies the EBU R-128 or original algorithm or gives you the option.


It can write RBU R128, the R9 DSP effects (which are in beta test), and also all the other things on the list (except detect Pre-emphasis which is not detectable outside of a CD Ripper AFAIK)



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Eli
post Jan 21 2013, 18:03
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QUOTE (spoon @ Jan 21 2013, 11:15) *
QUOTE
I believe dBpowerAmp's DSP plugin system also lets you deal with ReplayGain when converting, though I'm unaware of whether it applies the EBU R-128 or original algorithm or gives you the option.


It can write RBU R128, the R9 DSP effects (which are in beta test), and also all the other things on the list (except detect Pre-emphasis which is not detectable outside of a CD Ripper AFAIK)


Spoon, I am well aware that dBpoweramp can do 95% of this. However, I don't think I can do it in one step with dBpoweramp.

In regards to pre-emphasis, most of mine are flagged in the meta-data thanks to to dBpoweramp flagging them. I'm sure some have slipped through in the past.

However, can I de-emph with dBpoweramp? I assume I would need to run SOX through the command line...

This post has been edited by Eli: Jan 21 2013, 18:04


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