[Medin_standards] definition of audio files

Fri Jun 3 09:59:56 BST 2016

Thanks Sean & Co. It's good to see these things progressing!

(Paul's MEDIN strapline also works well!)

D

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From: medin_standards-bounces at mailman.nerc-liv.ac.uk [mailto:medin_standards-bounces at mailman.nerc-liv.ac.uk] On Behalf Of Gaffney, Sean P.
Sent: 03 June 2016 09:42
To: Lowry, Roy K.; Steve Gontarek; medin_standards at mailman.nerc-liv.ac.uk
Subject: Re: [Medin_standards] definition of audio files

Great - unless I hear otherwise from anyone by the end of the day, I'll therefore go with the definitions as follows:

Digital Audio:

Recordings of sound converted to an electrical signal the properties of which are sampled at regular intervals and stored.

Analogue Audio:
Recordings of sound converted to an electrical signal which is stored continuously using a medium such as magnetic tape or vinyl.

Thanks

Sean

[cid:image001.jpg at 01D1BD7E.69D0B6F0]

                Dr Sean Gaffney
                Manager, MEDIN Standards and Guidelines Work Stream
                Joseph Proudman Building, 6 Brownlow Street Liverpool L3 5DA
                w: www.oceannet.org<http://www.oceannet.org/>; e: sgaf at bodc.ac.uk<mailto:sgaf at bodc.ac.uk>; t: +44 (0) 151 795 4950

From: Lowry, Roy K.
Sent: 03 June 2016 09:40
To: Steve Gontarek; Gaffney, Sean P.; medin_standards at mailman.nerc-liv.ac.uk<mailto:medin_standards at mailman.nerc-liv.ac.uk>
Subject: Re: definition of audio files

Works for me.  Cheers, Roy.

Please note that I partially retired on 01/11/2015. I am now only working 7.5 hours a week and can only guarantee e-mail response on Wednesdays, my day in the office. All vocabulary queries should be sent to enquiries at bodc.ac.uk<mailto:enquiries at bodc.ac.uk>. Please also use this e-mail if your requirement is urgent.

________________________________
From: Steve Gontarek <Steve.Gontarek at sams.ac.uk<mailto:Steve.Gontarek at sams.ac.uk>>
Sent: 03 June 2016 08:56
To: Gaffney, Sean P.; medin_standards at mailman.nerc-liv.ac.uk<mailto:medin_standards at mailman.nerc-liv.ac.uk>
Cc: Lowry, Roy K.
Subject: RE: definition of audio files

Yeah, I'd go for that , but for one small tweak -  would suggest that instead of saying "determined as numbers" you use 'sampled at regular intervals and stored' - that after all is the essence of digitisation - sampling.

Steve

From: Gaffney, Sean P. [mailto:sgaf at bodc.ac.uk]
Sent: 03 June 2016 08:52
To: Steve Gontarek <Steve.Gontarek at sams.ac.uk<mailto:Steve.Gontarek at sams.ac.uk>>; medin_standards at mailman.nerc-liv.ac.uk<mailto:medin_standards at mailman.nerc-liv.ac.uk>
Cc: Lowry, Roy K. <rkl at bodc.ac.uk<mailto:rkl at bodc.ac.uk>>
Subject: RE: definition of audio files

Hi Steve,

Roy has proposed the following, which I think captures our requirements very nicely...

Digital Audio:

Recordings of sound converted to an electrical signal the properties of which are determined as numbers at regular intervals and stored.

Analogue Audio:

Recordings of sound converted to an electrical signal which is stored continuously using a medium such as magnetic tape or vinyl.

Sean

From: Steve Gontarek [mailto:Steve.Gontarek at sams.ac.uk]
Sent: 03 June 2016 07:46
To: Gaffney, Sean P.; medin_standards at mailman.nerc-liv.ac.uk<mailto:medin_standards at mailman.nerc-liv.ac.uk>
Cc: Lowry, Roy K.
Subject: RE: definition of audio files

Hi Sean,

I don't know if I would restrict the definition to 'fluids'.  What about something a bit more simple like "an electronic recording\representation of sound". And I agree with Roy, I think you probably what to differentiate between analogue and digital.

Steve

From: medin_standards-bounces at mailman.nerc-liv.ac.uk<mailto:medin_standards-bounces at mailman.nerc-liv.ac.uk> [mailto:medin_standards-bounces at mailman.nerc-liv.ac.uk] On Behalf Of Gaffney, Sean P.
Sent: 01 June 2016 11:46
To: medin_standards at mailman.nerc-liv.ac.uk<mailto:medin_standards at mailman.nerc-liv.ac.uk>
Cc: Lowry, Roy K. <rkl at bodc.ac.uk<mailto:rkl at bodc.ac.uk>>
Subject: [Medin_standards] definition of audio files

Dear MEDIN Standards Working Group,

I have an action to include the term 'Audio' as one of the data format types that MEDIN has in its vocabulary, M01. See the hyperlink below for details of current entries.

https://www.bodc.ac.uk/data/codes_and_formats/vocabulary_search/M01/

For audio, I propose as a first draft of the definition:

"Audio: Recordings, in either digital or analog form, of vibrations which cause a periodic disturbance in the pressure or density of a fluid or the elastic strain of an object and travel as longitudinal waves"

I would be grateful for any comments relating to this definition.

Regards

Sean Gaffney

[cid:image002.jpg at 01D1BD7E.69D0B6F0]

        Dr Sean Gaffney

        Manager, Standards and Guidelines Work Stream

        Joseph Proudman Building, 6 Brownlow Street Liverpool L3 5DA

        w: www.oceannet.org<http://www.oceannet.org/>; e: sgaf at bodc.ac.uk<mailto:sgaf at bodc.ac.uk>; t: +44 (0) 151 795 4950

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