Re: [podcasters] LAME vs. Fraunhofer MP3 Encoding
> On Wed, May 7, 2008 at 12:09 AM, Mike Wills <mike@...> wrote:Also, I forgot: you should be encoding to joint stereo, not full
> > My WAV file is 32 bit, and I tried using the following switches " -b 160 -m
> > s -h -p --bitwidth 16".
stereo. That would be '-m j', not '-m s' as you typed.
Podcasters should *always* encode to joint stereo, not mono or stereo.
If your source file is mono, it'll sound just as good, and play
correctly on some devices that flake out on mono MP3 files (including
iPods with older firmware). If your source file is stereo, joint
stereo will usually sound *better* than encoding to full stereo,
because it makes more efficient use of your bitrate.
This is probably a good time, too, to puncture the false belief some
people still have that mono MP3 files are smaller, or that sample rate
or bit width makes a difference to the MP3 file size. It doesn't.
All of those things matter to your input, but they don't matter after
compression. Look at the math in my prior post. The *ONLY* things
that determine the size of an MP3 file are the bit rate and the number
of seconds. Period.
Sound files are not magical. These numbers and settings all mean
things. MP3 compression algorithms may be complicated, but terms like
'bit rate' and 'sample rate' are pretty easy to grasp. You can read
and find out what they are and how they work, and it'll make you a
Steve Eley (sfeley@...)
ESCAPE POD - The Science Fiction Podcast Magazine