Posted by NRen2k5 on 08/26/05 01:52

On 8/21/2005 1:26:15 PM, CQ wrote:
>In article <nf2Oe.9427$7b7.91909@weber.videotron.net>, NRen2k5 said...
>
>> They're not standard AAC's. They're Apple AAC's. They've made their own changes to the format and some ostensibly make it sound better, while others only serve to make it encode faster, and these typically hurt the quality.
>>
>Where did this information come from? Apple and the AAC site both seem
>to think Apple is using standard AAC with DRM enabled. What "changes"
>have they made to AAC other than using it and spreading it so widely that
>many people wrongly think AAC stands for "Apple Audio Codec"?
>--
>CQ
>
>

Their encoder. Like anybody else, they tune it. At HydrogenAudio, some time ago, I had read that a certain I-Tunes update resulted in AAC encodings that didn't sound quite as good as those made with the earlier version. When you tune an encoder, you usually do so for either encoding speed or sound quality. However, improvements to one will osften worsen the other.

- NRen2k5

[Back to original message]