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 <H1>[SC-04-08] X215 Initiation: Calibrate of Cinema B-Chain</H1>
 Mark Yonge 
 <A HREF="mailto:sc-04-08%40standards.aes.org?Subject=Re%3A%20%5BSC-04-08%5D%20X215%20Initiation%3A%20Calibrate%20of%20Cinema%20B-Chain&In-Reply-To=%3C1873EDA4-0F74-4297-B43F-D97411C2B56F%40aes.org%3E" TITLE="[SC-04-08] X215 Initiation: Calibrate of Cinema B-Chain">muy at aes.org
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 Mon Mar 4 07:21:28 MST 2013
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<PRE>Dear SC-04-08 and SC-04,

As requested by David Josephson, chair of SC-04, and hearing no objection from that subcommittee,  I have today initiated the new project AES-X215, "Liaison with SMPTE project to codify current procedures to calibrate the Cinema B-Chain", assigned to SC-02-08.

The initiation form with the scope and justification for this project is on the SC-04-08 document site:

pif-x215-bchain-smpte-liaison-130222.pdf

Subcommittee members can access this document site by logging in at: <A HREF="https://secure.aes.org/standards/documents/?ID=28">https://secure.aes.org/standards/documents/?ID=28</A> and navigating the the SC-04-08 document folder.

Working group members can go directly to <A HREF="https://secure.aes.org/standards/documents/?ID=91">https://secure.aes.org/standards/documents/?ID=91</A>

For quick reference - here's a summary:

**********
The scope of the project, named AES-X215, is as follows:

TITLE:  "Liaison with SMPTE project to codify current procedures to calibrate the Cinema B-Chain"

SCOPE:  "This project will liaise with SMPTE TC-25CSS in their project to Codify current procedures as used by skilled theater technicians to calibrate the Cinema B-Chain. The project will consider comments as appropriate for communication to SMPTE. "

OUTPUT:  Liaison

Mark Yonge
<A HREF="https://secure.aes.org/mailman/listinfo/sc-04-08">muy at aes.org</A>
tel: +44 1594 517200
mob.: +44 7939 166511
skype: markyonge

</PRE>

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 <H1>[SC-04-08] X216 Initiation: Calibration pink-noise</H1>
 Mark Yonge 
 <A HREF="mailto:sc-04-08%40standards.aes.org?Subject=Re%3A%20%5BSC-04-08%5D%20X216%20Initiation%3A%20Calibration%20pink-noise&In-Reply-To=%3CA499858A-2D9B-4F32-9399-0EF057396B48%40aes.org%3E" TITLE="[SC-04-08] X216 Initiation: Calibration pink-noise">muy at aes.org
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 Mon Mar 4 07:32:23 MST 2013
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<PRE>Dear SC-04-08 and SC-04,

As requested by David Josephson, chair of SC-04, and hearing no objection from that subcommittee,  I have today initiated the new project AES-X216, "Liaison with SMPTE project on Calibration Pink-Noise Standard and Test File", assigned to SC-04-08.

The initiation form with the scope and justification for this project is on the SC-04-08 document site:

pif-x216-pinknoise-smpte-liaison-130222.pdf

Subcommittee members can access this document site by logging in at: <A HREF="https://secure.aes.org/standards/documents/?ID=28">https://secure.aes.org/standards/documents/?ID=28</A> and navigating the the SC-04-08 document folder.

Working group members can go directly to <A HREF="https://secure.aes.org/standards/documents/?ID=91">https://secure.aes.org/standards/documents/?ID=91</A>

For quick reference - here's a summary:

**********
The scope of the project, named AES-X216, is as follows:

TITLE:  "Liaison with SMPTE project on Calibration Pink-Noise Standard and Test File"

SCOPE:  "This project will liaise with SMPTE TC-25CSS in their project to "Create a pink-noise Standard, and a reference pink-noise file available in a digital audio file and DCP formats that conform to the description of the pink noise in ST 202:2010 and RP 200-2012 and for which the time domain (mean, standard deviation, skew, kurtosis, etc) and frequency domain (energy per bandwidth, bandwidth, etc) characteristics are defined. Specify the algorithm used to generate the pink-noise file." The project will consider comments as appropriate for communication to SMPTE. "

OUTPUT:  Liaison

Mark Yonge
<A HREF="https://secure.aes.org/mailman/listinfo/sc-04-08">muy at aes.org</A>
tel: +44 1594 517200
mob.: +44 7939 166511
skype: markyonge

</PRE>

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 <H1>[SC-04-08] X218 Initiation: Measurement and calibration of sound	systems in rooms</H1>
 Mark Yonge 
 <A HREF="mailto:sc-04-08%40standards.aes.org?Subject=Re%3A%20%5BSC-04-08%5D%20X218%20Initiation%3A%20Measurement%20and%20calibration%20of%20sound%0A%09systems%20in%20rooms&In-Reply-To=%3CEF030D7D-0AE3-47CB-AA06-6F1146F550DB%40aes.org%3E" TITLE="[SC-04-08] X218 Initiation: Measurement and calibration of sound	systems in rooms">standards at aes.org
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 Mon Mar 4 07:39:40 MST 2013
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<PRE>Dear SC-04-08 and SC-04,

As requested by David Josephson, chair of SC-04, and hearing no objection from that subcommittee,  I have today initiated the new project AES-X218, "Measurement and calibration of sound systems in rooms", assigned to SC-04-08.

The initiation form with the scope and justification for this project is on the SC-04-08 document site:

pif-x218-room-measurement-130222.pdf

Subcommittee members can access this document site by logging in at: <A HREF="https://secure.aes.org/standards/documents/?ID=28">https://secure.aes.org/standards/documents/?ID=28</A> and navigating the the SC-04-08 document folder.

Working group members can go directly to <A HREF="https://secure.aes.org/standards/documents/?ID=91">https://secure.aes.org/standards/documents/?ID=91</A>

For quick reference - here's a summary:

**********
The scope of the project, named AES-X218, is as follows:

TITLE:  "Measurement and calibration of sound systems in rooms"

SCOPE:  "to document relevant parameters affecting the audience experience of a sound system in a generalized room, and identify appropriate objective methods of measurements to quantify them. The intent is to identify tools and procedures for a technician to measure the performance of a loudspeaker system in a room, and then support accurate and reliable calibration of this system to a specified performance. "

OUTPUT:  Information Document

Mark Yonge
AES Standards Manager

<A HREF="https://secure.aes.org/mailman/listinfo/sc-04-08">standards at aes.org</A>
tel: +44 1594 517200
skype: markyonge

</PRE>

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 <H1>[SC-04-08] X219 Initiation: Method of measurement for sound systems	in auditoria</H1>
 Mark Yonge 
 <A HREF="mailto:sc-04-08%40standards.aes.org?Subject=Re%3A%20%5BSC-04-08%5D%20X219%20Initiation%3A%20Method%20of%20measurement%20for%20sound%20systems%0A%09in%20auditoria&In-Reply-To=%3C9661C2D6-9F36-4160-A010-028843F1E463%40aes.org%3E" TITLE="[SC-04-08] X219 Initiation: Method of measurement for sound systems	in auditoria">muy at aes.org
 </A> 
 Mon Mar 4 07:47:00 MST 2013
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<PRE>Dear SC-04-08 and SC-04,

As requested by David Josephson, chair of SC-04, and hearing no objection from that subcommittee,  I have today initiated the new project AES-X219, "Method of measurement for frequency and impulse response of sound systems in auditoria", assigned to SC-04-08.

The initiation form with the scope and justification for this project is on the SC-04-08 document site:

pif-x219-freq-response-130222.pdf

Subcommittee members can access this document site by logging in at: <A HREF="https://secure.aes.org/standards/documents/?ID=28">https://secure.aes.org/standards/documents/?ID=28</A> and navigating the the SC-04-08 document folder.

Working group members can go directly to <A HREF="https://secure.aes.org/standards/documents/?ID=91">https://secure.aes.org/standards/documents/?ID=91</A>

For quick reference - here's a summary:

**********
The scope of the project, named AES-X219, is as follows:

TITLE:  "Method of measurement for frequency and impulse response of sound systems in auditoria"

SCOPE:  "to specify a method of measurement for frequency and impulse response of sound systems in auditoria. "

OUTPUT:  Standard

Mark Yonge
<A HREF="https://secure.aes.org/mailman/listinfo/sc-04-08">muy at aes.org</A>
tel: +44 1594 517200
mob.: +44 7939 166511
skype: markyonge

</PRE>

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 <H1>[SC-04-08] [Steering] X216 Initiation: Calibration pink-noise</H1>
 John Woodgate 
 <A HREF="mailto:sc-04-08%40standards.aes.org?Subject=Re%3A%20%5BSC-04-08%5D%20%5BSteering%5D%20X216%20Initiation%3A%20Calibration%20pink-noise&In-Reply-To=%3CbRSrOYDJJLNRFwEp%40jmwa.demon.co.uk%3E" TITLE="[SC-04-08] [Steering] X216 Initiation: Calibration pink-noise">jmw at jmwa.demon.co.uk
 </A> 
 Mon Mar 4 07:40:09 MST 2013
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<PRE>In message <<A HREF="https://secure.aes.org/mailman/listinfo/sc-04-08">A499858A-2D9B-4F32-9399-0EF057396B48 at aes.org</A>>, dated Mon, 4 
Mar 2013, Mark Yonge <<A HREF="https://secure.aes.org/mailman/listinfo/sc-04-08">muy at aes.org</A>> writes:

>As requested by David Josephson, chair of SC-04, and hearing no 
>objection from that subcommittee, I have today initiated the new 
>project AES-X216, "Liaison with SMPTE project on Calibration Pink-Noise 
>Standard and Test File", assigned to SC-04-08.

I am surprised to note the absence of 'amplitude-probability 
distribution' included in the list of characteristics. Not everything is 
Gaussian, and this can have profound effects. I have done some work on 
this and have a Mathcad worksheet that finds APDs from .wav files.
-- 
OOO - Own Opinions Only. See www.jmwa.demon.co.uk
SHOCK HORROR! Dinosaur-like DNA found in chicken and turkey meals
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
</PRE>

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 <H1>[SC-04-08] X215 reference document posted</H1>
 Mark Yonge 
 <A HREF="mailto:sc-04-08%40standards.aes.org?Subject=Re%3A%20%5BSC-04-08%5D%20X215%20reference%20document%20posted&In-Reply-To=%3C7443BEE4-A730-4077-BF1C-D7C0D6057F46%40aes.org%3E" TITLE="[SC-04-08] X215 reference document posted">standards at aes.org
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 Fri Apr 12 01:38:38 MDT 2013
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<PRE>Dear SC-04-08,

For reference in project AES-X215, I have today posted working copy of the current ST0202, "SMPTE  standard for Motion-Pictures - Dubbing Stages (Mixing Rooms), Screening Rooms and Indoor Theaters - B-Chain Electroacoustic Response"  You can find it on the SC-04-08 document site with the filename:

x215-smpte-st0202-130403.pdf

A direct log-in is available at: <A HREF="https://secure.aes.org/standards/documents/?ID=91">https://secure.aes.org/standards/documents/?ID=91</A>

This document is made available to us specifically for our standards work and you may not distribute it to others. Please treat it with the confidentiality we require of all our working documents.

regards,

Mark Yonge
AES Standards Manager

<A HREF="https://secure.aes.org/mailman/listinfo/sc-04-08">standards at aes.org</A>
tel: +44 1594 517200
skype: markyonge

</PRE>

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 <H1>[SC-04-08] X215 reference document posted</H1>
 David Weinberg 
 <A HREF="mailto:sc-04-08%40standards.aes.org?Subject=Re%3A%20%5BSC-04-08%5D%20X215%20reference%20document%20posted&In-Reply-To=%3CCAGE46ewKCt83UTg13OMCAc8ZB%2BAzm%2B20uhaHsi4h0uJkoSo5eQ%40mail.gmail.com%3E" TITLE="[SC-04-08] X215 reference document posted">weinberg.d.j at gmail.com
 </A> 
 Fri Apr 12 13:58:58 MDT 2013
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<PRE>This email was sent in error. I think you have the wrong David Weinberg.

On Fri, Apr 12, 2013 at 2:38 AM, Mark Yonge <<A HREF="https://secure.aes.org/mailman/listinfo/sc-04-08">standards at aes.org</A>> wrote:

> Dear SC-04-08,
>
> For reference in project AES-X215, I have today posted working copy of the
> current ST0202, "SMPTE standard for Motion-Pictures - Dubbing Stages
> (Mixing Rooms), Screening Rooms and Indoor Theaters - B-Chain
> Electroacoustic Response" You can find it on the SC-04-08 document site
> with the filename:
>
> x215-smpte-st0202-130403.pdf
>
> A direct log-in is available at:
> <A HREF="https://secure.aes.org/standards/documents/?ID=91">https://secure.aes.org/standards/documents/?ID=91</A>
>
> This document is made available to us specifically for our standards work
> and you may not distribute it to others. Please treat it with the
> confidentiality we require of all our working documents.
>
> regards,
>
>
> Mark Yonge
> AES Standards Manager
>
> <A HREF="https://secure.aes.org/mailman/listinfo/sc-04-08">standards at aes.org</A>
> tel: +44 1594 517200
> skype: markyonge
>
> _______________________________________________
> SC-04-08 mailing list
> <A HREF="https://secure.aes.org/mailman/listinfo/sc-04-08">SC-04-08 at standards.aes.org</A>
> <<A HREF="http://standards.aes.org/sc.cfm?ID=91">http://standards.aes.org/sc.cfm?ID=91</A>>
>
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 <H1>[SC-04-08] Amplitude Probability Distribution,	speech and noise signals</H1>
 John Woodgate 
 <A HREF="mailto:sc-04-08%40standards.aes.org?Subject=Re%3A%20%5BSC-04-08%5D%20Amplitude%20Probability%20Distribution%2C%0A%09speech%20and%20noise%20signals&In-Reply-To=%3CD2TdX0Vx6piRFw9R%40jmwa.demon.co.uk%3E" TITLE="[SC-04-08] Amplitude Probability Distribution,	speech and noise signals">jmw at jmwa.demon.co.uk
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 Wed May 8 12:51:29 MDT 2013
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<PRE>I have uploaded a zip archive containing various papers on this subject 
that I produced for numerous purposes. I haven't made any attempt to 
edit them for closer applicability to SC-04-08 projects.

The Mathcad script will produce the APD of any .wav file if you know how 
to drive Mathcad. It is not compatible with the current version of SMath 
Studio, which is a free application. The authors of this run their web 
site as a forum, so the contact URL is:

<A HREF="http://en.smath.info/forum/default.aspx?g=posts&t=1778">http://en.smath.info/forum/default.aspx?g=posts&t=1778</A>

-- 
OOO - Own Opinions Only. See www.jmwa.demon.co.uk
They took me to a specialist burns unit - and made me learn 'To a haggis'.

John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
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 <H1>[SC-04-08] Definitions about noise</H1>
 John Woodgate 
 <A HREF="mailto:sc-04-08%40standards.aes.org?Subject=Re%3A%20%5BSC-04-08%5D%20Definitions%20about%20noise&In-Reply-To=%3CHyTcWoE3pJjRFwVc%40jmwa.demon.co.uk%3E" TITLE="[SC-04-08] Definitions about noise">jmw at jmwa.demon.co.uk
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 Fri May 10 00:57:59 MDT 2013
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<PRE>I have uploaded X216Woodgate-noise130510.doc
-- 
OOO - Own Opinions Only. See www.jmwa.demon.co.uk
They took me to a specialist burns unit - and made me learn 'To a haggis'.

John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
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 <H1>[SC-04-08] About bad frequencies in room calibration (AES-X218,	X219)</H1>
 Alberto Pereira 
 <A HREF="mailto:sc-04-08%40standards.aes.org?Subject=Re%3A%20%5BSC-04-08%5D%20About%20bad%20frequencies%20in%20room%20calibration%20%28AES-X218%2C%0A%09X219%29&In-Reply-To=%3C16B235628D3CC14FB6116D4DD7740604602D5F%40server.exchange.local%3E" TITLE="[SC-04-08] About bad frequencies in room calibration (AES-X218,	X219)">alberto.pereira at dms-cinema.com
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 Tue May 14 06:58:48 MDT 2013
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<PRE>Dear Philip Newell, dear all,
I remember when we met in Rome, you said no frequencies would appear in the chain when we calibrate a room (correct me if I'm wrong, I'll be sorry).
Is it possible that some inaudible frequencies are amplified and become audible because of some acoustics phenomenon of a particular room ?
Some sound systems can induce unwanted harmonics of the original sound, then these harmonics could be amplified in the acoustic chain even if they are inaudible in the begining...

I hope I made myself clear.

Best regards,

Alberto PEREIRA
Ingénieur R&D - R&D Engineer
Tel. : + 33 (0)1 80 81 52 40
E-mail : <A HREF="https://secure.aes.org/mailman/listinfo/sc-04-08">alberto.pereira at dms-cinema.com</A><mailto:<A HREF="https://secure.aes.org/mailman/listinfo/sc-04-08">alberto.pereira at dms-cinema.com</A>>
[cid:<A HREF="https://secure.aes.org/mailman/listinfo/sc-04-08">part1.03020605.02020801 at dms-cinema.com</A>]
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