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<div><br class="webkit-block-placeholder"></div><div>SJ,</div><div><br class="webkit-block-placeholder"></div><div>Two things. </div><div><br></div><div>More important:</div><div><br class="webkit-block-placeholder"></div>Free music is a great concept... for people who have global access to ineternet-based music pools. Given enough "community mass" and discernment on the part of the listener, one can get to the subjective and elusive concepts of "quality" and "exemplariness". The problem here is that OLPC, by the very fact it will include collections of music by "curated" artists out of the free music ethos, gives a value imprimatur where perhaps none is warranted. We dont need a discussion about music's influence on culture but I think everyone will agree its serious business in the education and socialising of a child, increasing manyfold in adolescence. Alas, much of the music that is presently included in the Jamendo collection is, to be honest, dreadful in style and of rather poor quality in production. I am perhaps not in a position to be an arbitrer any more than the undoutedly generous and sharp young minds at Jamendo but I suggest OLPC thread VERY carefully here. Even when there is quality, I am not certain what to think of Nigerian children being fed a diet of DJ Spooky, no matter how much I personally enjoy his work... <div><br class="webkit-block-placeholder"></div><div>We should be discerning about what we wish for. "Open System" ia not "Open Culture".</div><div><div><br class="webkit-block-placeholder"></div><div><br class="webkit-block-placeholder"></div><div><br class="webkit-block-placeholder"></div><div><div>Less important:</div><div><br class="webkit-block-placeholder"></div><div>A head's up on the XO audio subsystem: The speakers have a severely biased frequency response. We have recently performed a thorough analysis of the audio response curve of the machine and there is a spectacular 12dB peak between 3000 and 4500 Hz, this on all models. I suspect these are mobile phone speakers designed for voice clarity. What this means is kids will likely crank up the volume so that they can hear some of the lower frequencies. Since the physical size of the speakers prohibits any frequencies below 350 HZ, as they try to get a decent bandwidth, they will get the "membrane-against-the-casing" distortion (which has the merit of making the kids lower the volume but risks killing the speakers if done routinely). Someone on the hardware side really should look at the long term prospects for audio hardware failure and see what correction we can bring, by limiting signal output and/or equalising the output of the AD1888 (we dont know what can be done on chip...)</div><div><br class="webkit-block-placeholder"></div><div>The solution we have implemented in TamTam is to simply apply a reverse notch filter on the audio signals we send to the speakers. This works well and provides a more pleasant listening experience, but inevitably reduces the dynamic range. It does nothing per se to protect the speakers becasue you can still crank up the volume to casing distortion. Furthermore, our solution only works with the speakers of course, since the line out/headphone output produces an acceptably neutral signal. Thus, to make it sound good in the speakers, we make it sound bad in the earphones. Unless there is a signal we can access that tells us when the line out jack is connected.... Anyone know? </div><br class="webkit-block-placeholder"></div><div><br></div><div><div><div>jp (ethrop)</div><div><div><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div><br class="webkit-block-placeholder"></div><div><br class="webkit-block-placeholder"></div><div><br class="Apple-interchange-newline">_________________________________</div><div><a href="http://jeanpiche.com">http://jeanpiche.com</a></div></span> </div><br><div><div>On 26-Oct-07, at 9:33 PM, Samuel Klein wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Jamendo has been hard at work compiling albums of music and confirmations<span class="Apple-converted-space"> </span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">from their artists, coordinating the work of dozens of curators and<span class="Apple-converted-space"> </span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">smaller partner sites.<span class="Apple-converted-space"> </span>You can see some of the results of their work</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">here:</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><a href="http://www.jamendo.com/fr/olpc">http://www.jamendo.com/fr/olpc</a></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">There will be a "contribute music" interface soon; for now, you can send<span class="Apple-converted-space"> </span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">albums and interested artists to Romain directly (cc:ed here).<span class="Apple-converted-space"> </span>And there<span class="Apple-converted-space"> </span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">will be more information put up about the artists involved.</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">This has come together thanks to many people, but especially the crews at<span class="Apple-converted-space"> </span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Jamendo, Free Culture, and the Antenna Alliance.<span class="Apple-converted-space"> </span>You all rock.</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">If you have contributed music in other formats that doesn't currently show<span class="Apple-converted-space"> </span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">up on the page listed above, let us know; and make sure that you have<span class="Apple-converted-space"> </span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">confirmed the license of your works.</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Cheers,</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">SJ</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">_______________________________________________</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Library mailing list</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><a href="mailto:Library@lists.laptop.org">Library@lists.laptop.org</a></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><a href="http://lists.laptop.org/listinfo/library">http://lists.laptop.org/listinfo/library</a></div> </blockquote></div><br></div></div></div></div></body></html>