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Posted to rec.audio.tech
TimPerry
 
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Default can radio sound be processed like this?


"equalizing songz," wrote in message
oups.com...
Hey all,


I have hooked up my boom box to my "line in" in my computer, and then
use a song file recorder/editor to record the music as wav directly to
the hard disc.

The songs sound very close to the way they do when played from a cd,
and I don't have the heart yet to tell a couple friends that the cds I
made for them were burnt with songs recorded this way from the radio,
not downloaded or ripped from cd.

However, I would like to know if radio-source songs can be re-processed
with equalizers, to remove or hide that slightly "distant" sound that
radio-recorded songs have, and maybe make it sound more like it came
directly from a cd...?

So far, after a long night of loudness, and playing with midranges, the
best sound yet seems to be merely increasing the gain to just below the
level of buzzing. But that slightly "distant" sound is still there.

I was thinking maybe the distance effect is just the stereo signal the
song came through, and perhaps mixing the radio wav file down to mono
(with a few other boosts) will make the song sound more like it came
straight off a cd?

thanks in advance for your answer and any other options you may know
of.

eqd


a dynamic range expander such as the dbx 1BX (or its multiband cousin the
3BX) or some effect setting in your DAW that emulates these will make
"radio" audio sound more like the original source material, however, like
the other poster said once the audio goes through the process chain you can
not fully resurrect it.

the dbx units are long out of production but appear on e-bay regularly.

several other makers produce boxes with a similar effects as part of thier
menu options.

some types of single ended noise reduction units may be of assistance. some
of these have an adjustable noise gate that mutes the audio below a preset
threshold. this gives you silence instead of static. it works particularly
well with TV audio.


your boom box may not have a good 19 KHz filter. the strong pilot tone may
be making its way on to your recording. as FM radio's audio will contain no
useful audio above 15 KHz try cutting all frequencies above 15 K.

if you are recording from the headphone out jack you may be getting
amplifier noise along with your signal. a stand alone tuner or system with
REC out jacks would be preferable.