--- Forwarded Message from Roberto Perez <[log in to unmask]> ---
>Date: Fri, 15 Sep 2006 11:53:31 -0400
>To: Language Learning and Technology International Information Forum
<[log in to unmask]>
>From: Roberto Perez <[log in to unmask]>
>Subject: Re: #8321 Creating MP3s
>In-Reply-To: <[log in to unmask]>
>References: <[log in to unmask]>
At 11:38 AM 9/15/2006, Barbara wrote:
>Good (128 kbps) and Higher (192) (both mono and 48 kHz) sound basically
>the same to me, with a 13 MB difference in size for the same material.
>What would 320 kbps get me?
If you are recording voice, the difference in quality between 128
kbps (the minimum for "CD quality), 256 kpbs, and 320 kpbs will be
imperceptible if you use regular computer speakers. The difference in
quality *may* be perceived when you play the files over a PA system,
for instance, or some other quality sound system.
If you are recording voice, then that's a different story. There are
certain instruments at certain frequencies which sonority may be
affected (i.e., decreased) at lower qualities. So a higher quality
file played in a high quality sound system will give you a better
rendition of the music, with all the little arrangements, additions,
and "embellishments" added by the different instruments.
I'd say, if storage space is not an issue, use the highest quality
(e.g., 256 or 320 kpbs). You can easily use a "save as" function with
the mp2 files to shrink them later if needed. But if you have the
lower quality ones, and you want to increase the quality, you'd have
to go back to your original .wav files and do the conversion again.
Regards,
Roberto Perez
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