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	<title>BAASnotes.com - Bay Area Audiophile Society &#187; Technical</title>
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	<link>http://baasnotes.com/blog</link>
	<description>The Site of Northern California Audiophiles and Music Lovers</description>
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		<title>Circuitlab.com &#8211; A Boon to DIY Audio Everywhere</title>
		<link>http://baasnotes.com/blog/2012/03/14/circuitlab-com-a-boon-to-diy-audio-everywhere/</link>
		<comments>http://baasnotes.com/blog/2012/03/14/circuitlab-com-a-boon-to-diy-audio-everywhere/#comments</comments>
		<pubDate>Thu, 15 Mar 2012 06:34:14 +0000</pubDate>
		<dc:creator>Bob</dc:creator>
				<category><![CDATA[Audiophile]]></category>
		<category><![CDATA[Bob]]></category>
		<category><![CDATA[Technical]]></category>

		<guid isPermaLink="false">http://baasnotes.com/blog/?p=1841</guid>
		<description><![CDATA[I&#8217;ve spent the last few evenings running through some circuit analysis using new web-based modeling software on Circuitlab. So far, I love it! It&#8217;s fairly comprehensive, the GUI builder works well, and has nice graphical output. And it&#8217;s free. Circuitlab is especially good news for Mac users, filling a void in application coverage. The most [...]]]></description>
		<wfw:commentRss>http://baasnotes.com/blog/2012/03/14/circuitlab-com-a-boon-to-diy-audio-everywhere/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Are High-resolution Music Downloads &#8220;Senseless&#8221;?</title>
		<link>http://baasnotes.com/blog/2012/03/05/are-high-resolution-music-downloads-senseless/</link>
		<comments>http://baasnotes.com/blog/2012/03/05/are-high-resolution-music-downloads-senseless/#comments</comments>
		<pubDate>Tue, 06 Mar 2012 04:22:44 +0000</pubDate>
		<dc:creator>Bob</dc:creator>
				<category><![CDATA[Audiophile]]></category>
		<category><![CDATA[Bob]]></category>
		<category><![CDATA[Technical]]></category>

		<guid isPermaLink="false">http://baasnotes.com/blog/?p=1828</guid>
		<description><![CDATA[Ensconced in my office at Untangle this afternoon, I was doing my daily regimen of high-tech reading when&#8230;.I see an article on &#8220;24/192 downloads&#8221;appear on my favorite techie news service &#8211; Hacker News (HN). I read the xiph.org post - provocatively entitled &#8220;24/192 Music Downloads &#8230;and why they make no sense&#8221; - and made a comment or two [...]]]></description>
		<wfw:commentRss>http://baasnotes.com/blog/2012/03/05/are-high-resolution-music-downloads-senseless/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>Null Testing and Listening Testing of &#8220;Mastered for iTunes&#8221;</title>
		<link>http://baasnotes.com/blog/2012/02/26/null-testing-and-listening-testing-of-mastered-for-itunes/</link>
		<comments>http://baasnotes.com/blog/2012/02/26/null-testing-and-listening-testing-of-mastered-for-itunes/#comments</comments>
		<pubDate>Mon, 27 Feb 2012 01:23:31 +0000</pubDate>
		<dc:creator>Bob</dc:creator>
				<category><![CDATA[Audiophile]]></category>
		<category><![CDATA[Bob]]></category>
		<category><![CDATA[Technical]]></category>
		<category><![CDATA[Video]]></category>

		<guid isPermaLink="false">http://baasnotes.com/blog/?p=1818</guid>
		<description><![CDATA[In this video, Ian Shepard of Production Advice in the UK compares a CD track to both its &#8220;raw&#8221; AAC coded form and a &#8220;Mastered for iTunes&#8221; rendition. I think that most of you will jump to the punchline early on, but the journey is interesting (for audio geeks). On a related note, I wish that [...]]]></description>
		<wfw:commentRss>http://baasnotes.com/blog/2012/02/26/null-testing-and-listening-testing-of-mastered-for-itunes/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Audio Primer: How the Pros Use EQ and Compression</title>
		<link>http://baasnotes.com/blog/2012/02/26/audio-primer-how-the-pros-use-eq-and-compression/</link>
		<comments>http://baasnotes.com/blog/2012/02/26/audio-primer-how-the-pros-use-eq-and-compression/#comments</comments>
		<pubDate>Sun, 26 Feb 2012 20:03:55 +0000</pubDate>
		<dc:creator>Bob</dc:creator>
				<category><![CDATA[Audiophile]]></category>
		<category><![CDATA[Bob]]></category>
		<category><![CDATA[Technical]]></category>
		<category><![CDATA[Video]]></category>

		<guid isPermaLink="false">http://baasnotes.com/blog/?p=1788</guid>
		<description><![CDATA[Audiophiles are taught that equalization (EQ) and compression are BAD. However, used judiciously, they are useful or even GOOD. Joe Gilder&#8217;s &#8220;Home Studio Corner&#8221; web site is one of the best resources on the web for learning how good-sounding recordings are put together. No, Joe&#8217;s home studio is neither Skywalker nor Abbey Roads in sophistication. [...]]]></description>
		<wfw:commentRss>http://baasnotes.com/blog/2012/02/26/audio-primer-how-the-pros-use-eq-and-compression/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Audio Primer:  Why Pink Noise is the Best Test Signal</title>
		<link>http://baasnotes.com/blog/2012/02/25/why-pink-noise-is-the-best-test-signal/</link>
		<comments>http://baasnotes.com/blog/2012/02/25/why-pink-noise-is-the-best-test-signal/#comments</comments>
		<pubDate>Sun, 26 Feb 2012 00:31:41 +0000</pubDate>
		<dc:creator>Bob</dc:creator>
				<category><![CDATA[Audiophile]]></category>
		<category><![CDATA[Bob]]></category>
		<category><![CDATA[Technical]]></category>

		<guid isPermaLink="false">http://baasnotes.com/blog/?p=1761</guid>
		<description><![CDATA[Few audiophiles share my passion for listening to test signals when evaluating equipment. That&#8217;s quite understandable. But all would agree &#8211; from JA on down &#8211; that test signals are vital in measuring equipment and rooms. When measuring, the most common test signal in use is &#8220;pink noise.&#8221; But why? Common answers include: It contains [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>An Engineer&#8217;s Comment on the High-Frequency Noise Spike Issue</title>
		<link>http://baasnotes.com/blog/2012/02/13/an-engineers-comment-on-the-high-frequency-noise-spike-issue/</link>
		<comments>http://baasnotes.com/blog/2012/02/13/an-engineers-comment-on-the-high-frequency-noise-spike-issue/#comments</comments>
		<pubDate>Tue, 14 Feb 2012 00:21:01 +0000</pubDate>
		<dc:creator>Bob</dc:creator>
				<category><![CDATA[Audiophile]]></category>
		<category><![CDATA[Bob]]></category>
		<category><![CDATA[General]]></category>
		<category><![CDATA[Technical]]></category>

		<guid isPermaLink="false">http://baasnotes.com/blog/?p=1738</guid>
		<description><![CDATA[The professional engineer in question has requested anonymity, but here&#8217;s what he had to say: Studios are full of HF signals that alias back into the audio spectrum. The guess about a TV monitor somewhere in the mastering studio is valid indeed, as 15,750 * 4 - 44,100 = 18,900 Hz. It could even be a [...]]]></description>
		<wfw:commentRss>http://baasnotes.com/blog/2012/02/13/an-engineers-comment-on-the-high-frequency-noise-spike-issue/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>Mysterious High-Frequency Spikes in Recorded Music</title>
		<link>http://baasnotes.com/blog/2012/02/12/mysterious-high-frequency-spikes-in-recorded-music/</link>
		<comments>http://baasnotes.com/blog/2012/02/12/mysterious-high-frequency-spikes-in-recorded-music/#comments</comments>
		<pubDate>Sun, 12 Feb 2012 19:47:02 +0000</pubDate>
		<dc:creator>Bob</dc:creator>
				<category><![CDATA[Audiophile]]></category>
		<category><![CDATA[Bob]]></category>
		<category><![CDATA[Music]]></category>
		<category><![CDATA[Technical]]></category>

		<guid isPermaLink="false">http://baasnotes.com/blog/?p=1728</guid>
		<description><![CDATA[Those of you who have attended events at my house know that I use this version of Sting&#8217;s &#8220;Fields of Gold&#8221; as one of my reference tracks (especially for bass). I happened to be analyzing those bass peaks today, and noticed intermittent frequency spiking at 19khz (see image). To my knowledge, this behavior doesn&#8217;t occur [...]]]></description>
		<wfw:commentRss>http://baasnotes.com/blog/2012/02/12/mysterious-high-frequency-spikes-in-recorded-music/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>Is Music Math (and vice versa)?</title>
		<link>http://baasnotes.com/blog/2012/01/14/is-music-math-and-vice-versa/</link>
		<comments>http://baasnotes.com/blog/2012/01/14/is-music-math-and-vice-versa/#comments</comments>
		<pubDate>Sat, 14 Jan 2012 19:45:39 +0000</pubDate>
		<dc:creator>Bob</dc:creator>
				<category><![CDATA[Audiophile]]></category>
		<category><![CDATA[Bob]]></category>
		<category><![CDATA[General]]></category>
		<category><![CDATA[Music]]></category>
		<category><![CDATA[Technical]]></category>

		<guid isPermaLink="false">http://baasnotes.com/blog/?p=1666</guid>
		<description><![CDATA[Physicist Glenn Elert has included a nice exposition on the mathematical basis of music in his online physics text (click here). Glenn keeps the tech description at a &#8220;Popular Science&#8221; level for much of it, but descends to undergrad-college-level in parts. So there&#8217;s something for everyone. (nice illustrations too.) If you think about the content, [...]]]></description>
		<wfw:commentRss>http://baasnotes.com/blog/2012/01/14/is-music-math-and-vice-versa/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Can Loud Music Add Hard Drive Latency? Does it Matter?</title>
		<link>http://baasnotes.com/blog/2011/12/05/can-loud-music-add-hard-drive-latency-does-it-matter/</link>
		<comments>http://baasnotes.com/blog/2011/12/05/can-loud-music-add-hard-drive-latency-does-it-matter/#comments</comments>
		<pubDate>Mon, 05 Dec 2011 18:26:11 +0000</pubDate>
		<dc:creator>Bob</dc:creator>
				<category><![CDATA[Audiophile]]></category>
		<category><![CDATA[Bob]]></category>
		<category><![CDATA[General]]></category>
		<category><![CDATA[Music Server]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[Technical]]></category>

		<guid isPermaLink="false">http://baasnotes.com/blog/?p=1619</guid>
		<description><![CDATA[Note that this ad hoc demonstration does not represent proof, let alone applicability to home playback environments. Also, extensive use of caching in player software would seem to negate this effect in sound systems. However, perhaps this is why some austensibly-sensible audiophiles report better sonics with solid state drives (SSDs)? Thanks to PeterT for pointing [...]]]></description>
		<wfw:commentRss>http://baasnotes.com/blog/2011/12/05/can-loud-music-add-hard-drive-latency-does-it-matter/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Reproducing the Live Event &#8211; How Loud is Loud Enough?</title>
		<link>http://baasnotes.com/blog/2011/11/24/reproducing-the-live-event-how-loud-is-loud-enough/</link>
		<comments>http://baasnotes.com/blog/2011/11/24/reproducing-the-live-event-how-loud-is-loud-enough/#comments</comments>
		<pubDate>Thu, 24 Nov 2011 20:42:00 +0000</pubDate>
		<dc:creator>Bob</dc:creator>
				<category><![CDATA[Audiophile]]></category>
		<category><![CDATA[Bob]]></category>
		<category><![CDATA[General]]></category>
		<category><![CDATA[Technical]]></category>

		<guid isPermaLink="false">http://baasnotes.com/blog/?p=1608</guid>
		<description><![CDATA[We audiophiles are obsessed with frequency response (FR): Is that system &#8220;flat&#8221; to 20hHz? How low will these speakers go? I *must* have 20hz! There was a &#8220;BBC dip&#8221; in that Tannoy. No, I would call it a smile. Urgh. Those speakers are waaarrrm. And so on&#8230;. Even looking at the august Stereophile, keeper of [...]]]></description>
		<wfw:commentRss>http://baasnotes.com/blog/2011/11/24/reproducing-the-live-event-how-loud-is-loud-enough/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
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