[ProAudio] [ProAud] The High-Resolution Challenge

[Dan Lavry]

Hi James,Are talking about some program that "listen" to the music (from start to finish) to determine the highest and lowest frequency content?RegardsDan LavrySent from my Verizon, Samsung Galaxy smartphone

-------- Original message --------
From: James Johnston via ProAudio <proaudio at bach.pgm.com> 
Date: 2/10/20  10:28 PM  (GMT-08:00) 
To: mark whitehouse <mark at procopy.com.au>, proaudio at bach.pgm.com 
Subject: Re: [ProAudio] [ProAud] The High-Resolution Challenge 

I must say that I am sorely tempted to see if I can get somebody to whip up an app that measures effective bandwidth of a PCM track at any common sampling rate.On Mon, Feb 10, 2020 at 10:15 PM mark whitehouse via ProAudio <proaudio at bach.pgm.com> wrote:Following on from our discussion of around 18 months ago,I know in Australia there were moves to get some kind of "truth in marketing" in regards to High sample rate recordings.And promoting the differences in standards that are now available. Essentially a standard that could be understood by and promoted to consumers, musicians etc.It doesnt seem to have gone far and when you see things like thishttp://archimago.blogspot.com/2013/07/list-suspected-44-or-48khz-pcm.html  It makes you wonder if things will improve.Is there any consensus on getting this acknowledged? regardsMark  To upload files to our server, Please click the following link and follow the steps on the Hightail page. https://spaces.hightail.com/uplink/ProCopy-DataPro-Copy - Promote Media Group Unit 2  39 Enterprise Crescent MalagaWA  6090 PH +61 (08) 9375 3902 AustWide: 1300 4 PROCOPY  For general enquiries email - info at procopy.com.auwww.procopy.com.auThis transmission is confidential. This e-mail including any attachments, is for the original addressee only. Virus detection software has been used to detect the presence of any computer viruses, however, we cannot guarantee that this e-mail and any attached files are virus free.On Fri, Jun 15, 2018 at 8:25 AM Mark Waldrep <mwaldrep at aixmediagroup.com> wrote:In the interest of exploring the issue of perceptibility of high-resolution vs. Redbook versions of the exact same file, I've posted on my blog page today "The High-Resolution Audio Challenge". I've prepared 6 of my AIX Records native 96 kHz/24-bit PCM masters as A and B versions. One is the original high-res master and the other is a Redbook downconversion. You are welcome to download the files and play them. Please do not share them outside of the group. I'm conducting a casual survey to see if people can detect differences. I don't claim this will be definitive. However, I've always complained that previous tests failed because the source materials weren't actual high-resolution files. This removes that flaw. These are the real deal. The conversion was done using triangular dither and noise shaping.

You can find the article at http://www.realhd-audio.com/?p=6197

Mark Waldrep, Ph.D.
AIX Records and author of
Music and Audio: A User Guide To Better Sound


On 6/14/18, 3:13 PM, "Stephen Morley" <proaudio-bounces at bach.pgm.com on behalf of stephenmorley at iprimus.com.au> wrote:

    I can record DXD and the downsample in Pyramix, or else at 192/24 and then downsample to 44/24
    -------- Original message --------From: James Johnston <audioskeptic at gmail.com> Date: 14/6/18  8:56 pm  (GMT+10:00) To: proaudio at bach.pgm.com Subject: Re: [ProAud] Wow. 384/32 LPCM! 
    Just make sure the content is identical on both.

    On Thu, Jun 14, 2018 at 2:36 AM, Stephen Morley <
    stephenmorley at iprimus.com.au> wrote:

    > Hi James,I could send something, but not until next week when I return
    > from leave.Stephen
    > -------- Original message --------From: James Johnston <
    > audioskeptic at gmail.com> Date: 13/6/18  8:53 am  (GMT+10:00) To:
    > proaudio at bach.pgm.com Subject: Re: [ProAud] Wow. 384/32 LPCM!
    > I'll repeat my request:
    >
    > Send me some recordings at 24/192 and a similar one at 44/16. I can and
    > will measure the actual "information" present, via SFM and bit depth.
    >
    > _______________________________________________
    > ProAudio mailing list
    > ProAudio at bach.pgm.com
    > http://bach.pgm.com/mailman/listinfo/proaudio
    >



    -- 
    James D. (jj) Johnston
    Independent Audio and Electroacoustics Consultant
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-- James D. (jj) JohnstonIndependent Audio and Electroacoustics Consultant
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