<html><body><div style="font-family: times new roman,new york,times,serif; font-size: 12pt; color: #000000"><div>Do you have any pointers or suggestions on how I would go about doing this filtering? I'm not even sure what keywords to use to start researching it.<br></div><div><br></div><hr id="zwchr"><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;" data-mce-style="border-left: 2px solid #1010FF; margin-left: 5px; padding-left: 5px; color: #000; font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;"><b>From: </b>"Ryan Prior" <ryanprior@gmail.com><br><b>To: </b>"Justin Slootsky" <justin@slootsky.org><br><b>Sent: </b>Sunday, February 9, 2014 11:11:49 PM<br><b>Subject: </b>Re: [Lab] Audio Spectrum display<br><div><br></div><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Sun, Feb 9, 2014 at 9:46 PM, Justin Slootsky <span dir="ltr"><<a href="mailto:justin@slootsky.org" target="_blank" data-mce-href="mailto:justin@slootsky.org">justin@slootsky.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex" data-mce-style="margin: 0 0 0 .8ex; border-left: 1px #ccc solid; padding-left: 1ex;">I've been thinking about doing something like this, but a completely different display method (individually addressable pixels in a line, colour to denote frequency, or if that just works out to too close to all white, then pixels for a frequency, and vary the intensity... Or something)<br></blockquote><div><br></div><div>Yeah, you won't need to worry about them ending up all white because you can filter and stratify the source signal before sending it to display.<br></div><div><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex" data-mce-style="margin: 0 0 0 .8ex; border-left: 1px #ccc solid; padding-left: 1ex;">The bit that I'm wondering / worried about is that I'm planning on using this in a very loud venue, what microphone choices do I need to make in order for it not to be all blown out and reading 11 the whole time?<br></blockquote><div><br></div><div>A fancy microphone is not important. You will get your best results by carefully choosing how you filter the audio. If there's lots of distortion, crash symbol, etc in the venue then you will need to treat that carefully to keep it from maxing out your signal. Play around with it and let us know if you need help. <br></div></div></div></div></blockquote><div><br></div></div></body></html>