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iTunes MP3 CODEC: Strange Setting? It use LAME or other?, Smart Encoding and 10 Hz Filter????
Antigen
post Apr 19 2012, 00:03
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Hi to all,

I hope that some one have experience with the iTunes MP3 ENCODER.

I don't know if iTunes use LAME or other encoder for MP3 but I have see strange setting in the setup page-

My setting are:

- STEREO BIT RATE 320 KBPS
- SAMPLE RATE: AUTO
- CHANNELS: AUTO
- STEREO MODE: JOINT STEREO

- SMART ENCODING ADJUSTMENTS ON
- FILTER FREQUENCIES BELOW 10 Hz

But what is the SMART ENCODING ADJUSTMENT?

And is not a bad idea filter the frequencies below 10 Hz?

What do you suggest?

For LAME I know that is better JOINT STEREO but with iTUNES ENCODER?

Thanks

This post has been edited by Antigen: Apr 19 2012, 00:25
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Antigen
post Apr 19 2012, 00:54
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Group: Members
Posts: 135
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My assumption is based only on this

Stereo Mode:

In Normal mode, your MP3 files contain one track for the right stereo channel and one track for the left. In many cases, the two channels contain related information. In Joint Stereo mode, one channel carries the information thatís identical on both channels, and the other channel carries the unique information. At bit rates of 160 kbps and below, this can improve the sound quality of your converted audio.


Apple suggest that on bitrate below of 160 is better Joint Stereo.


I know that for LAME is suggested to use Joint stereo every time :-)

I hope that from 2004 to 2012 the MP3 encoder of iTunes is improved... but there is not the possibility to see what version it use?
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Posts in this topic
- Antigen   iTunes MP3 CODEC: Strange Setting? It use LAME or other?   Apr 19 2012, 00:03
- - db1989   I looked these up recently in preparation for usin...   Apr 19 2012, 00:10
- - Antigen   Thank you. I have see that if I use SMART ENCODIN...   Apr 19 2012, 00:25
|- - db1989   QUOTE (Antigen @ Apr 19 2012, 00:25) I ha...   Apr 19 2012, 00:28
- - Antigen   yes, I have tried with: SMART ENCODING ON and OFF...   Apr 19 2012, 00:35
- - db1989   Assuming proper (read: not incompetent) implementa...   Apr 19 2012, 00:42
- - Antigen   The ABX test on iTunes MP3 codec that I have found...   Apr 19 2012, 00:46
|- - db1989   I hoped Iíd emphasised enough that you should not ...   Apr 19 2012, 00:50
- - Antigen   My assumption is based only on this Stereo Mode: ...   Apr 19 2012, 00:54
- - db1989   Yes, joint stereo can improve quality at low bitra...   Apr 19 2012, 01:04
- - Antigen   I think that Joint Stereo, that is a lossless comp...   Apr 19 2012, 01:09
|- - db1989   QUOTE (Antigen @ Apr 19 2012, 01:09) I th...   Apr 19 2012, 01:15
||- - Antigen   QUOTE (db1989 @ Apr 19 2012, 02:15) QUOTE...   Apr 19 2012, 01:17
||- - Antigen   Here and interesting link http://myweb.tiscali.co...   Apr 19 2012, 01:38
||- - greynol   QUOTE (Antigen @ Apr 18 2012, 17:17) And ...   Apr 19 2012, 01:59
||- - pdq   QUOTE (Antigen @ Apr 18 2012, 20:17) Join...   Apr 19 2012, 12:57
|- - Nessuno   QUOTE (Antigen @ Apr 19 2012, 02:09) The ...   Apr 19 2012, 05:47
- - RobertoDomenico   I don't know if this is any help but it's ...   Apr 19 2012, 03:56
- - RobertoDomenico   Totally agree with what Nessuno said. XLD is by fa...   Apr 19 2012, 07:46
- - Antigen   Thanks very much, I think that I will use XLD in a...   Apr 19 2012, 09:17
- - [JAZ]   10Hz Filtering: This is not a setting about improv...   Apr 19 2012, 19:50


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