https://wiki.hydrogenaudio.org/index.php?action=history&feed=atom&title=High_resolution 2026-05-02T12:51:04Z Revision history for this page on the wiki MediaWiki 1.44.2 https://wiki.hydrogenaudio.org/index.php?title=High_resolution&diff=35452&oldid=prev 2022-01-15T12:33:17Z

<p>More explanation; RIAA definition; faking it.</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:33, 15 January 2022</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>With regards to audio, '''''high <del style="font-weight: bold; text-decoration: none;">resolutions</del>''''' <del style="font-weight: bold; text-decoration: none;">often </del>means <del style="font-weight: bold; text-decoration: none;">using </del>[[sampling rate]]<del style="font-weight: bold; text-decoration: none;">s higher than 48kHz and</del>/<del style="font-weight: bold; text-decoration: none;">or </del>[[bit depth]]s <del style="font-weight: bold; text-decoration: none;">higher </del>than <del style="font-weight: bold; text-decoration: none;">16bit</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>With regards to <ins style="font-weight: bold; text-decoration: none;">(digital) </ins>audio, '''''high <ins style="font-weight: bold; text-decoration: none;">resolution</ins>''''' <ins style="font-weight: bold; text-decoration: none;">typically </ins>means [[sampling rate<ins style="font-weight: bold; text-decoration: none;">|sampling rates</ins>]] / [[bit depth<ins style="font-weight: bold; text-decoration: none;">|bit depths</ins>]] <ins style="font-weight: bold; text-decoration: none;">exceeding 48 kHz / 16 bits (compare to [[CD|CD'</ins>s<ins style="font-weight: bold; text-decoration: none;">]] 44100/16).  48k/16 is the least sampling rate and bit depth possible in [[DVD|DVDs]] that choose [[PCM]] for audio&lt;ref&gt;https://en.wikipedia.org/wiki/DVD-Video#Audio_data&lt;/ref&gt;, and was at some time even more common </ins>than <ins style="font-weight: bold; text-decoration: none;">44.1k/16 in computer soundcards (cf. Intel's AC'97 standard&lt;ref&gt;https://en.wikipedia.org/wiki/AC%2797#Revisions&lt;/ref&gt;).  Given that this format is widely accepted as sufficient as an end-user format, given the limitations of human hearing, the absence of a ''universally agreed-upon'' definition of “high resolution” audio need not be of much practical concern, and possibly the least resolution accepted in any widepsread definition is 48 kHz / 20 bits adopted for marketing purposes by the RIAA&lt;ref&gt;https://www.riaa.com/high-resolution-audio-initiative-gets-major-boost-with-new-hi-res-music-logo-and-branding-materials-for-digital-retailers&lt;/ref&gt;.  </ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">There are "fake" high resolution claims made for marketing purposes, and also algorithms that manipulate the audio to that end - notably has the lossy MQA format been exposed of adding noise to CDDA format files and falsely presenting the doctored file as an "authentic" high-resolution master&lt;ref&gt;https://www.audiosciencereview.com/forum/index.php?threads/mqa-deep-dive-i-published-music-on-tidal-to-test-mqa.22549&lt;/ref&gt; - but arguably, this constitutes only a next step over [[lossy]] files decoded and sold as lossless, or fake SPARS codes indicating that a CD was digitally sourced&lt;ref&gt;https://en.wikipedia.org/wiki/SPARS_code&lt;/ref&gt;.</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">&lt;references/&gt;</ins></div></td></tr> </table>

Porcuswiki https://wiki.hydrogenaudio.org/index.php?title=High_resolution&diff=8187&oldid=prev 2005-04-16T03:48:56Z

<p>Initial commit</p> <p><b>New page</b></p><div>With regards to audio, &#039;&#039;&#039;&#039;&#039;high resolutions&#039;&#039;&#039;&#039;&#039; often means using [[sampling rate]]s higher than 48kHz and/or [[bit depth]]s higher than 16bit</div>

Rjamorim