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More => Old Versions => Media Center 17 => Topic started by: jaynyc on May 29, 2012, 08:15:17 pm

Title: some .m4a tracks show "64" for Bit Depth ?
Post by: jaynyc on May 29, 2012, 08:15:17 pm

Hi.  Some .m4a tracks, like the ones I recently bought from iTunes, show as 64 for Bit Depth, when they are most definitely and obviously just 16 bit.

What is the cause and remedy for this?

Title: Re: some .m4a tracks show "64" for Bit Depth ?
Post by: Matt on May 29, 2012, 08:16:09 pm

http://wiki.jriver.com/index.php/Audio_Bitdepth#Bitdepth_of_Lossy_Formats

Title: Re: some .m4a tracks show "64" for Bit Depth ?
Post by: jaynyc on May 29, 2012, 08:23:08 pm

educational... though none of my MP3 tracks, which are definitely lossy, show 64 bit depth.  They also show 16.

I am wondering if there is perhaps an option somewhere to correctly show lossy M4a bit depth as 16 etc..

Title: Re: some .m4a tracks show "64" for Bit Depth ?
Post by: Matt on May 29, 2012, 09:00:59 pm

Quote from: jaynyc on May 29, 2012, 08:23:08 pm

I am wondering if there is perhaps an option somewhere to correctly show lossy M4a bit depth as 16 etc..

There is no "correct" bitdepth (see the link I posted).

The M4A decoder outputs 64-bit, which is good.

Title: Re: some .m4a tracks show "64" for Bit Depth ?
Post by: Matt on May 31, 2012, 10:36:56 am

In a coming build:
Changed: Lossy M4A and AAC files will show a bitdepth of "16" (what the source probably was) in the library instead of "64" (what the decoder outputs).

Title: Re: some .m4a tracks show "64" for Bit Depth ?
Post by: jaynyc on May 31, 2012, 10:43:29 am

hooray