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I have "Golden Ears" Which AAC VBR Bitrate is acceptable?
KmanKaiser
post Aug 29 2012, 09:28
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So, yes, I have the "golden ears" everyone refers too...

I can actually hear the difference between FLAC, and MP3 320 kbps

I can hear the difference between 1,536 Kbps DTS, 800 Kbps VBR AAC, and 384/640 Kbps AC3 when I watch films, and my equipment isn't very fancy either


I just finished transcoding my FLAC discography of Eminem to 128 Kbps VBR AAC

I am thinking of retranscoding (again, from flac) to 192 Kbps or 320 Kbps VBR AAC
but is it necessary? (this is going to be for playback from my ipod touch)

My FLAC files look something like this...
Format/Info : Free Lossless Audio Codec
Duration : 6mn 42s
Bit rate mode : Variable
Bit rate : 2 849 Kbps
Channel(s) : 2 channels
Sampling rate : 96.0 KHz
Bit depth : 24 bits
Stream size : 137 MiB (100%)

This post has been edited by KmanKaiser: Aug 29 2012, 09:37
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Kohlrabi
post Aug 29 2012, 09:39
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QUOTE (KmanKaiser @ Aug 29 2012, 10:28) *
I can hear the difference between 1,536 Kbps DTS, 800 Kbps VBR AAC, and 384/640 Kbps AC3 when I watch films, and my equipment isn't very fancy either
More often than not DTS and AC3 tracks on a movie medium are based on different masters, making them unsuitable for comparison.

QUOTE (KmanKaiser @ Aug 29 2012, 10:28) *
I am thinking of retranscoding (again, from flac) to 192 Kbps or 320 Kbps VBR AAC
but is it necessary? (this is going to be for playback from my ipod touch)
Use ABX tests to determine your threshold for AAC encoding. There is no golden setting for everybody, especially not if you are able to routinely identify artifacts at high bitrates.

QUOTE (KmanKaiser @ Aug 29 2012, 10:28) *
My FLAC files look something like this...
Format/Info : Free Lossless Audio Codec
Duration : 5mn 13s
Bit rate mode : Variable
Bit rate : 2 726 Kbps
Channel(s) : 2 channels
Sampling rate : 96.0 KHz
Bit depth : 24 bits
These files are based on DVD-A rips? If these are CD rips you should seek to replace them with proper CD rips.

This post has been edited by Kohlrabi: Aug 29 2012, 09:40


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