[SBE] CALM

[Mulliner, Rich]

Folks,

 

Dolby makes has a DP600 Program Optimizer List Price of $ 26,000:

This is a device that provides a file-based workflow solution for
loudness correction, audio conversion, and up-mixing.  The DP600 can be
used in cable, satellite, IPTV, terrestrial TV, radio, and
postproduction facilities.  It includes audio analysis and automated
loudness normalization engine, along with the ability to encode, decode,
convert, or trans-code between the following formats: Dolby Digital
Plus, Dolby Digital, Dolby E, PCM, MPEG-1 LII, AAC, and HE AAC v2 

 

We use this device prior to server input to analyze and correct levels
before server ingest, that way everything in the server is correct and
meets CALM standards.   

Richard L. Mulliner

Director of Engineering/IT WLNY TV

270 South Service Road Suite 55

Melville, New York 11747

Main:    631-777-8855

Direct:   631-622-9471

Cell:      516-456-6606

mullinerr at wlnytv.com

 

________________________________

From: sbe-bounces at sbe.org [mailto:sbe-bounces at sbe.org] On Behalf Of
Richard Burden
Sent: Wednesday, July 27, 2011 12:36 PM
To: 'sbe member discussion mail list'
Subject: Re: [SBE] CALM

 

Folks,

 

Here is a simplified answer.

 

The ear is a power sensitive device.    Thus, the related measurement is
a measurement of amplitude over time.    The documents A/85 and
ITU-BS1770 refer to the method by which the measurement is made.

 

Many TV facilities rely on file based program material.    Perhaps the
smartest approach would be to measure the loudness content of the
program material prior to entering it into the file.     This is
probably easier said than done.

 

There are loudness controllers on the market today, which when inserted
into the program chain will provide some control over loudness.  While
these devices do a creditable job, it is better practice to solve the
problem prior to entry. 

 

 

Dick Burden

rwburden at pacbell.net

818-340-4590

 

________________________________

From: sbe-bounces at sbe.org [mailto:sbe-bounces at sbe.org] On Behalf Of Gary
Stewart
Sent: Wednesday, July 27, 2011 6:59 AM
To: sbe member discussion mail list
Subject: Re: [SBE] CALM

 

You at least should have a way to monitor loudness.  I don't know if you
can then get away with regular processors and better QC.

 

Gary Stewart

Engineering Dept.

Cornerstone TV

412-824-3930

 

________________________________

From: sbe-bounces at sbe.org [mailto:sbe-bounces at sbe.org] On Behalf Of
Edwin Bukont
Sent: Wednesday, July 27, 2011 12:33 AM
To: sbe
Subject: [SBE] CALM

 

What are folks doing with regard to the future implemenation of CALM
A/85?  Is it expected to be all about use of processors, or are there
production and technical concerns being implemented beyond an
Orban/Omnia solution?

Edwin Bukont CSRE, DRB, CBNT 
E2 Technical Services LLC
Tech-Knowledgy for When Sound Matters
Nashville, Baltimore, Wherever
V- 240.417.2475; F- 240.368.1265
ebukont at msn.com

 






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