[Brian Gaff \(Sofa 2\)]

You can also change the sample rate down on Goldwave, and I'd actually
suggest 192kbits for reasonable stuff, but if you want quality avoid mp3,
use Flac but this does have issues as not all devices can play them due to a
much larger memory demand at decode time.
Brian

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"Mike Rivers" wrote in message
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On 1/3/2020 4:05 PM, lid wrote:
I want to convert this to an MP3 file.

Please tell me what settings I should use for the MP3 file, eg; MP3
Fraunhofer IIS MPEG Layer-3 Codec (professional), attributes eg 128
kbit/sec, 48.000 Hz, Mono

If you take Don's advice to use the defaults (and his advice is perfectly
reasonable) you'll likely end up with a stereo file with the same audio on
both channels. There's nothing wrong with that other than that the file is
twice as big as it needs to be. So if you want a mono MP3 file, you'll
need to find the setting for it.

As far as bit rate is concerned, 128 kbps is roughly equivalent in quality
to a high quality cassette, though distortion characteristics are
different. Sadly, that's good enough for most listeners, and better than a
good many of them get through streams and downloads. In many listening
tests, all but the most skilled listeners, when comparing a CD with a 192
kbps 44.1 or 48 kHz MP3 file, can't accurately identify which is which.

When I make MP3 files to listen to in my car or on a plane, I use 128
kbps. I usually use Audacity by importing the WAV file, then exporting it
as an MP3. It gives you the choice of stereo or mono and a choice of bit
rates. I don't think it converts sample rate (you can't import a 44.1 kHz
WAV file and export it as a 48 kHz MP3).

Bit rate can either be fixed (64, 128, 192, 256, etc kbps) or variable.
Variable can provide slightly better fidelity - the encoder gives you a
little extra resolution when it thinks it's advantageous, but saves space
by not running at a high bit rate all the time. I use fixed bit rates
because I know everything can play them.

So for "plenty good enough" use 128 kbps, fixed rate, or for the peanut
gallery, they won't know the difference, other than in time it takes to
download or space it takes on a drive, between 64 and 128 kbps.


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