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From: lanky <lankydave@hotmail.com>
Newsgroups: alt.binaries.mp3.audiobooks
Subject: Re: sample rate
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Date: 18 Mar 2015 11:27:02 GMT
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> I have been messing around reducing the sample rates on some of the
> high rate stereo spoken voice rips. My goal is the minimum
reasonable
> file size. For voice it would seem that 3-5 KHZ would be fine but I
> see settings here that seem way bigger. What are the preferred
> settings folks find that work? If you can spare a bit of why I
could
> use that too. ;-) Thanks for any help!
Based entirely upon my own experience, hearing quality and storage
size - I decided to use 48Kb/s bit rate and 44KHz mono sample rate
for voice audio as in audiobooks.
The "standard" these days is tending towards 64/44 mono, or 64/22
stereo. (I don't like stereo for normal voice audio) My experience
leads me to conclude that increasing the bit rate above 64 KB/s is
merely a waste of storage space for 99% of voice audio. The other 1%
is "special effect" audio as in "a movie in your mind" stuff.
There is a lot of 32/22 recordings about but these are nearly always
noticeably of lower quality, sometimes so annoyingly so as to lead to
deletion :)
A sample rate of less than 32 is usually unacceptably rough to me. I
do have some 16 KHz stereo voice stuff but I have manipulated it,
usually, in cool edit or similar to make it less tinny, echoey etc.
I am talking about audiobooks which last several hours, so irksome
sound quality builds up after a while. If you find 3-5Khz OK then your
ears are very different to mine, but its a free world.....
lanky
I'd give you a piece of my mind, but I'm on the last one
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