Re: [asterisk-users] Converting MP3 files to wav for Asterisk
On Thu, 2011-03-03 at 08:19 -0800, Steve Edwards wrote:
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?
I had been having the same issue and this above method has really
improved the quality of my wav files (I had previously been using
sox -V ${INPUT} -r 8000 -c 1 -s ${OUTPUT} resample -ql)
Thanks for that
Ish
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Ishfaq Malik
Software Developer
PackNet Ltd
Office: 0161 660 3062
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Re: [asterisk-users] Converting MP3 files to wav for Asterisk
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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Re: [asterisk-users] Converting MP3 files to wav for Asterisk
Try to convert into gsm instead wav. sox test.wav -r 8000 -c1 test.gsm Am 03.03.2011 06:20, schrieb Timothy Smith: Hi, I am running a service where I play full songs but MP3 files kept on crashing my server. I resorted to wav but the quality is really poor after converting..or even sometimes not audible at all! Do you guys know of a better way I can convert mp3 to wav and restore quality? Below is the script I am using, I also tried the steps at http://www.voip-info.org/wiki/view/Convert+WAV+audio+files+for+use+in+Asterisk but it wasnt any better. #!/bin/bash for i in `ls $1/*mp3` do lame -a $i $i.wav mplayer -quiet -vo null -vc dummy -ao pcm:waveheader:file=$i.h.wav $i.wav sox $i.h.wav -t raw -r 8000 -s -2 -c 1 `echo $i|sed s/.mp3/.sln/` done - Any thoughts please? Regards, Tim -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- Thorsten Göllner OVM Office Voice Media GmbH Herderstrasse 68 40237 Düsseldorf Tel.: +49(0)211 / 618 57 53 Fax: +49(0)211 / 618 57 54 -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
