Re: iTunes back door, API, DLL raw sample question
Re: iTunes back door, API, DLL raw sample question
- Subject: Re: iTunes back door, API, DLL raw sample question
- From: Gordon Rankin <email@hidden>
- Date: Mon, 01 Jun 2009 11:50:14 -0400
- Organization: Wavelength Audio, ltd.
Message: 5
Date: Fri, 29 May 2009 14:23:56 -0700
From: William Stewart <email@hidden>
Subject: Re: iTunes back door, API, DLL raw sample question
To: email@hidden
Cc: email@hidden
Message-ID: <email@hidden>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
On May 29, 2009, at 1:34 PM, Gordon Rankin wrote:
One of the reason's why iTunes does not sound as good is that iTunes
takes a snap shot of Audio Midi Setup for the device output in
question and resamples to that rate and bit size before it goes out.
So you may have a 44.1/16 bit track then a 24/96 track and they will
both be resampled to the rate specified in the Audio Midi setup.
The issues in iTunes that gave this a sub-optimal experience This is
an old issue in iTunes that has been addressed.
Bill,
While it is true that the resampler is better in iTunes it still happens
and this conflicts with some of the dacs that use minimal phase output
filters. The results just don't sound as good as they are when iTunes is
outputting at the sample rate of the selection.
Since iTunes takes a snap shot of these settings at run time there is no
way to change the output settings during an iTunes session. If you do
then CoreAudio will resample again which is really bad.
Thanks
Gordon
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