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More => Old Versions => JRiver Media Center 18 for Windows => Topic started by: maciekb on December 24, 2012, 07:05:54 pm

Title: Bug when converting 24bit ALAC to FLAC - MC 18.0.103
Post by: maciekb on December 24, 2012, 07:05:54 pm

Hi,

I have bunch of 24bit M4A ALAC files. When I tried to convert them to FLAC, output FLAC files has only 16bit.


Regards,
Maciej

Title: Re: Bug when converting 24bit ALAC to FLAC - MC 18.0.103
Post by: Matt on December 25, 2012, 11:05:51 am

Thanks for the report.

We'll take a look next week when we're back in the office.

Title: Re: Bug when converting 24bit ALAC to FLAC - MC 18.0.103
Post by: Yaobing on December 31, 2012, 03:11:04 pm

Hi Maciej,

Can you provide a sample ALAC file that exhibit this problem?

yaobing at jriver dot com

EDIT:
Never mind.  I found a 24 bit WAV file and tested with it.  I can reproduce the problem.  WAV -> ALAC -> FLAC created a 16 bit file.  WAV -> FLAC created a 24 bit file.

Title: Re: Bug when converting 24bit ALAC to FLAC - MC 18.0.103
Post by: Yaobing on December 31, 2012, 05:57:42 pm

This is fixed.  I was not fast enough to make it in 18.0.104.  So you will see the fix in a later build.

Title: Re: Bug when converting 24bit ALAC to FLAC - MC 18.0.103
Post by: maciekb on January 04, 2013, 06:44:58 am

Hi Yaobing,

Quote from: Yaobing on December 31, 2012, 05:57:42 pm

This is fixed.  I was not fast enough to make it in 18.0.104.  So you will see the fix in a later build.

Converting 24bit ALAC to FLAC works perfectly now. But i've observed one more thing. After convert M4A to FLAC, column "Compression" still have ALAC not FLAC, but File Type is flac.


Best regards,
Maciej

Title: Re: Bug when converting 24bit ALAC to FLAC - MC 18.0.103
Post by: Yaobing on January 04, 2013, 03:09:29 pm

Quote from: maciekb on January 04, 2013, 06:44:58 am

But i've observed one more thing. After convert M4A to FLAC, column "Compression" still have ALAC not FLAC, but File Type is flac.

That is a bit strange.  Anybody else seeing this?  My flac audio files all have blank Compression field, whether they were converted from ALAC or not.

Title: Re: Bug when converting 24bit ALAC to FLAC - MC 18.0.103
Post by: Matt on January 04, 2013, 03:12:18 pm

Ideally the compression field should always have something useful, so it would probably be worth adding to the FLAC plugin.

Title: Re: Bug when converting 24bit ALAC to FLAC - MC 18.0.103
Post by: Yaobing on January 04, 2013, 03:20:40 pm

I can now reproduce the problem.  My conversion setting was such that it produced new file without deleting the old.  Once I set the the setting to "replace old file on disk and in library", "ALAC" shows up in the compression field.  I think our FLAC plugin may not provide a compression value.  I will look into this.

Title: Re: Bug when converting 24bit ALAC to FLAC - MC 18.0.103
Post by: Yaobing on January 04, 2013, 03:38:31 pm

It is now fixed and will appear in the next build.