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Tips for the
Optimization of FLAC?
FLAC is a file format that is used extensively for the
compression of audio files. The benefit of using FLAC for
audio compressions is that there is no loss in data after the
compression of the file. This means that the quality of the
music that existed before compression remains the same after
data compression.
Though FLAC is wonderful for compressing audio files, there
are some tips that can be followed to optimize its service.
Basically, FLAC does not store all WAVE metadata. However if
you want to store some non-audio parts of a WAVE file with
FLAC, you can use the ‘keep foreign metadata’ option when
storing the file in FLAC and then use the same option when
decoding to the decoded WAVE file.
FLAC is one of the fastest audio codecs available. In fact it
is faster on weak systems and is not slower than the fastest
codecs. However if you want to make FLAC encode faster, it may
not work as FLAC is asymmetric where it is optimized for
decoding speed while placing encoding speed at stake. This is
because decoding on low powered hardware is easier and because
encoding is usually done once and decoding many times.
When using FLAC Frontend, it is probable that you find the
message ‘run-time error 75: Path/File access error’. In such
situations, this could be the result of two things; you could
be encoding your file in a directory that does not offer write
permission. The other reason could be that the FLAC Frontend
program was set to run as Administrator. This is when you have
to open Windows Explorer and right click on the FLAC
Frontend.exe and check the program as an administrator.
It is possible to encode files starting with dash in FLAC. The
file starting with a dash is treated as an option; but you can
use ‘--‘to signify the end of options, and the start of
filenames. With this, you will be able to encode your dash
files as required. You may find that FLAC files with metaFLAC
take some time to edit.
It proves to be difficult to change the length of the FLAC
file as metadata is usually found at the start of the file.
However it is possible to avoid this by adding padding with
FLAC when encoding, or with metaFLAC after your encoding. FLAC
always adds 8k of padding; however you can change this to more
or less, as your requirements.
When compressing a file to FLAC for verification, you may
sometimes get the message ‘Verify failed!’. The reason for
receiving this message is usually faulty hardware. And if you
give the same command, it is possible that the error will be
found in a different place or disappear. Sometimes this also
happens when decoding or testing a FLAC file; in such
situations, the problem is not your FLAC bug but your
hardware.
It arises because of over clocking or overheating of the CPU
or RAM. You could try some of the free programs for testing
hardware and if you have a verify error that occurs at the
same place all the time, you could file a bug and get the
problem solved. You may wonder why the same file that is
compressed on different machines having the same options all
produce the same FLAC file.
Though this happens frequently, it is not supposed to. However
its occurrence does not signify that encoding was bad. It is
because there are variations between different machines and
different builds of FLAC on the same machine. All this leads
to slight difference in the FLAC file, even if they have the
same final size.
These are some tips that could be used to get better results
with your FLAC files. Try them out when you encounter problems
while compressing files using FLAC.
Source:
http://www.flacsite.com |
