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Re: [ARSCLIST] Stereo records.



Actually there's more going on in broadcast audio processing than just
compression. There's multiband peak limiting and compression, enhanced
stereo imaging on transients, deliberate even order bass distortion (for
pseudo bass on clock radios), and phase rotation, which is hardly known in
the audio world outside of broadcasting.

Almost all broadcast audio has been processed with phase rotation.

The Orban Optimod products have many different presets, supposedly for
different genres, like urban, classical, sports programs, etc. It's up to
station management to select the proper settings, it's not the device's
fault. 

The Optimods are almost infinitely customizable outside of the presets, but
like you, I can't listen to many stations today.

As you say, the audio train wreck occurs when broadcast audio processors run
into hypercompressed commercial CDs. Then it gets really ugly.

See http://www.masterdigital.com/24bit/radioprocess.htm for more info on
this, partly written by Robert Orban himself.

---
Parker Dinkins
MasterDigital Corporation
CD Mastering + Audio Restoration
http://masterdigital.com




on 6/20/06 10:47 AM US/Central, David Lennick at dlennick@xxxxxxxxxxxx
wrote:

>> One of my long time complaints against overly compressed audio has been
>> from hearing both on FM and AM broacast, the active compressors
>> broadcasters use to make their signal " louder " in relation to each
>> other. To the point of being unlistenable....IMNSHO
>> Compression does helps AM get more volume for the RF power involved
>> without overmodulation.
>> 
>> I wonder if the record companies aren't trying to emulate what the
>> broadcast industry has given the public  for years ?
>> Does any one of this generation really know how uncompressed audio is
>> supposed to sound ? The phrases compressed and uncompressed are in this
>> case not related to digital processing.
>> Of course, take a music CD which already has too much compression to
>> it, and run it through a agressive  broadcast level compressor and I
>> don't see how AYTHING could sound acceptable !! All broadcasters aren't
>> guilty of this.


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