iTunes PC Bit Transparent @ High Resolution
I had written an article earlier regarding the bit transparent playback issue with PC (http://www.designwsound.com/dwsblog/?page_id=1607)
The article was incorrect, there is setting which makes PC iTunes bit perfect software even in high resolution playback. iTunes is based on QuickTime, and there is Quicktime – > Edit – > QT Preference – > Audio -> Audio Output.
You will need to match this output to your playback files. For example if you want to playback HRx files from Reference Recording, you will need to set 24bit and 176.4kHz. If you want to playback 24/96kHz, you will need to select 24bit/96kHz on this preference.
I have done the same bit transparent test and the result is once the QT preference setting matches with the iTunes playback resolution and sampling rate, the audio output is bit transparent. I have also tested using 24bit/192kHz setting to playback 24/96kHz files, the output is not bit transparent.
At least this is a good news that PC iTunes works the same as MAC version and allows bit transparent playback.
Not a very good news, as Windows 7 / Vista still required to switch the working sampling rate and bit depth in sound properties, and now also required to change in QT, so when I’m using Iphone Remote, I must stick to single resolution file like 16/44, if playing High Rez, I must seating in front of PC and switching between 24/48, 24/88. 24/96, 24/176 and 24/192…..
Dear Hercules,
The force is not on your side…….
You need a Mac!
I found out the PC QT doesn’t equip with 176.4kHz selection.
@admin
Yes, no 176.4k, so I just use itunes for 16/44 now, until itunes PC can change the sampling rate and bit sync with the source file.
The sampling is okay, playing back 24/192 is bit transparent.