On Thu, 3 Mar 2011, Timothy Smith wrote:
Do you guys know of a better way I can convert mp3 to wav and restore
quality?
You can't restore quality lost by converting to MP3. You shouldn't be
'losing' quality by converting from MP3 to WAV.
----------------------------
#!/bin/bash
for i in `ls $1/*mp3`
Using "for i in $1/*mp3" will save creating a process.
do
lame -a $i $i.wav
Lame is an MP3 encoder. Specifying '.wav' doesn't create a WAV encoded
file, just a 'single channel' (because of '-a') MP3 encoded file with
'.wav' tacked on the end of the file name.
mplayer -quiet -vo null -vc dummy -ao pcm:waveheader:file="$i.h.wav" $i.wav
sox $i.h.wav -t raw -r 8000 -s -2 -c 1 `echo $i|sed "s/.mp3/.sln/"`
Using "sox $i.h.wav -t raw -r 8000 -s -2 -c 1 ${i%.mp3}.sln" will save
creating a process.
done
-----------------------------
I tried your commands converting an old Pink Floyd track and it sounded
about as good as I would expect.
Try something 'simpler'
mpg123 -q -w "${TEMP}" "${INPUT}"
sox "${TEMP}" -c 1 -s -w -r 8000 "${OUTPUT}"
and see if that helps. Otherwise, how do the 'intermediate' files in your
process sound? Can you hear when things fall apart?
If you post a link to a sample input file and a 'degraded' output file,
this may provide more clues.
--
Thanks in advance,
-------------------------------------------------------------------------
Steve Edwards sedwa...@sedwards.com Voice: +1-760-468-3867 PST
Newline Fax: +1-760-731-3000
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