[jegarn]

I've got a lot of Zeppelin albums in flac from vinyl. My problem is that I can't convert them to apple lossless since they are 24-bit instead of 16-bit.

I'm using dbPoweramp to convert the music.
What do I need to do to get the files to 16-bit apple lossless?

 

[PouncePony]

He is reference to a tool that allows coversion to 16 bit flac : Link

 

[jegarn]

Will there be any loss of quality?
What's the difference?

 

[pjmarrio]

I've been playing some 24 bit/96 kHz .flac files on my iPod using Rockbox. This is one way you could play them without converting if you have a 5.5 gen iPod or earlier, and aren't opposed to changing the firmware.

 

[jegarn]

While converting to wav I found out that I could convert to 16 bit at the same time with dbPoweramp

 

[krmathis]

The iPod play 24-bit files, and Apple Lossless does 24-bit as well.
Perhaps dbPoweramp don't support encoding to 24-bit Apple Lossless though. In that case, decode the FLAC files using the flac binary and encode those to Apple Lossless using iTunes..

 

[jegarn]

why did you say that?

I've already converted them to wav to m4a and deleted the original flac files.

Next time what program do I need for the flac binary encoding?

How does the sound differ between 24 and 16 bits?

 

[chinesekiwi]

Quote:

Originally Posted by jegarn /img/forum/go_quote.gif deleted the original flac files.

One question: why!?

Ok sure if you got the CD and all, all good, just rerip it but if you say, acquired it via 'other means'...why!?

 

[jegarn]

I have a new problem with the files.

When moving them to the iPod it says that the sampling frequency isn't compatible. What do I do now?

 

[jegarn]

Quote:

Originally Posted by chinesekiwi /img/forum/go_quote.gif One question: why!? Ok sure if you got the CD and all, all good, just rerip it but if you say, acquired it via 'other means'...why!?

I converted them first and then I deleted the files. still got them all, just in apple lossless instead

. But only in 16-bit

 

[ClieOS]

I think the question should go back to what kind of sampling rate does the original FLAC encoded with. If it is 24bits/48kHz than the loss is minimum when converting it to 16bits/44.1kHz. If the FLAC is ripped from CD (which is 16bits/44.1kHz by default) by oversampling to 24bits, than using either 24bits or 16bits shouldn't show much different since 16bits is already enough to cover the whole sampling range - that is my understanding.

 

[krmathis]

Quote:

Originally Posted by jegarn /img/forum/go_quote.gif why did you say that?

Why not?
If I knew and did not tell, you might have missed out of the crucial information.

 

[jegarn]

the sample rate is 30,5KHz

and I want it to be 44,1KHz, right?

 

[ClieOS]

What is the original sampling rate of the FLAC files? Is it ripped from CD?

Regardless, you want your end result to be at least 44.1kHz (more precisely, >40kHz) to cover the sampling range of 20~20kHz. According to Nyquist–Shannon sampling theorem, sampling rate need to be double of the maximum of your sampling frequency. To achieve 44.1kHz of sampling rate, you will need 16bit of quantization. If you sample your music at 30.5kHz, you will end up losing part of your music data even if it is 16bit (as 30.5kHz is only good for freq. range up to 15kHz).

 

[jegarn]

I tried listening to them....

Well the least I can say is that it was noise at least