Stereo 2 way Crossover | miniDSP In this application note, we will show you how to design an active 2-way loudspeaker. 3-way and 4-way speakers are an extension of the approach described here. What you will need A miniDSP. For a two-way speaker, a miniDSP kit, miniDSP 2x4, or a miniDSP Balanced 2x4 are suitable.A miniDSP plugin. If you have a digital source, you can add a miniDIGI card to the miniDSP kit to get digital input. This is the block diagram of the two-way plugin. 1. If you are starting from scratch, you will need to select the drivers for your speakers. If you are modifying an existing speaker from passive to active, then you have the drivers. 2. If you are building your own box, you will need to design it. 3. Once you have built the box and mounted the drivers, you will need to measure the drivers one at a time. You will need to use the output parametric EQ blocks to shape the response of each driver so that it is flat over its operating range. Let's start with the woofer. 4. 5. Wrapping up
Girl Scout cookie controversy: Kids saddled with financial risk? - OC Watchdog : The Orange County Register Gabriella and her mother may love the new "Cookies Now" program, but Misty Perry Isaacson does not share their ardor. Isaacson, an attorney in Santa Ana during non-Girl Scout hours, is also the "cookie manager" for her daughter's troop. Used to be that the girls (and/or their parents) toted around a multi-colored grid sheet; recorded orders for boxes of Caramel deLites, Thin Mints et al on that multi-colored grid sheet; and then delivered the cookies a month or so later. Now, there's another way. The new way of selling Girl Scout cookies -- which is supposed to be easier, faster and more fun -- asks troops to pre-order cookies based on last year's sales, and then go out and sell them. This streamlines the whole process, eliminates the cumbersome order sheet and has been enormously popular where it's been tested, the Scouts say. The problem, according to Isaacson, is that it leaves girls and their parents on the hook for paying for the cookies they pre-order, whether they sell them or not.
Four Audio | Products DBS1 2 Channel Dante Breakout Box Simple cost effective conversion from Dante audionetwork to 2 analog channels. Read more … DBO1 Dante Breakout Box Simple conversion from Dante audionetwork to analog / digital outputs. PPA DSP Plate Amp Series The PPA series provides a high-quality DSP-powered amplifier solution and aims at vendors of active loudspeakers. HD2 Loudspeaker Management System The loudspeaker management system HD2 provides IIR and/or FIR filters for loudspeaker equalization and separate peak and RMS limiters for amplifiers and loudspeakers in each channel. Monkey Forest Our measurement software “Monkey Forest” can be considered as the most versatile measurement and evaluation software being around now. ELF – Computer-controlled 3D loudspeaker measurement system for Ease balloon measurements With our ELF, balloon measurements of loudspeakers are made easy. HD2 High-end Loudspeaker Management System A412 High-Fidelity Endstufe Reproduction Module for Wave-Field Synthesis Systems
L’humiliation tue l’innovation La question de l’innovation est récurrente dans les grandes entreprises. C’est une tarte à la crème: tous les dirigeants souhaitent que leurs collaborateurs fassent preuve d’imagination et d’initiative pour inventer des solutions originales permettant de conquérir des marchés et de fidéliser les clients. Mais le concept d’innovation est difficile à cerner, souvent incantatoire, et les managers ont du mal à imaginer ce que cela signifie concrètement que de «développer l’innovation». Les nombreuses conversations que j’aie eues à ce sujet chez AREVA et ailleurs ont fini par clarifier un peu les choses dans mon esprit, à la lumière de ma compréhension de la dynamique des communautés professionnelles décrite dans mon livre en 2007. Dans ce contexte, l’ennemi absolu de l’innovation, c’est l’humiliation. Un troisième forme d’innovation, dite « participative », concerne ces “boîtes à idées” qu’on place un peu partout dans les entreprises, majoritairement en version intranet aujourd’hui.
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Shaping the Future: Pathways to 2020 The 2014 CECP Summit will take place in New York City May 20-21. Each year at this event, CECP shares cutting-edge research, provides the opportunity to hear the CEO perspective in panel discussions, and features keynote speakers such as President Bill Clinton, General Colin L. Powell (Ret.), Ambassador Melanne Verveer, Professor Michael Porter of Harvard Business School, and Anthony Wilder Miller, U.S. Deputy Secretary of Education. CECP releases the first look at the Corporate Giving Standard (CGS) data at the Summit and honors the winners of the Excellence Awards. Register for the 2014 CECP Summit » View a video about the CECP Summit (4 minutes)
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How to choose the good chart ? - Information Management - Thoughts & Tools The next time you face this question, the following chart can help you find your way. It shows the logical steps to find an appropriate chart. Whether you want to show a composition, a distribution, some relationship or if you want to compare some item, you will pick up a specific chart. It will be further determined by the time range, the number of items, … All in all, an awesome summary. PDF version Now why would we need this guide ? Too few people in companies use the power of charts, even if People are more than happy to see a chart (Yes, it produces as much endorphine as a chocolate-coated marshmallow) … So what the hell is going on ?? Maybe there is this sensation / belief that charts is not real work (in comparison to the manipulation of the numbers). So here is my little thought : try to take 30 min to chart all kinds of stuff you work on, and you will surely come up with one or two charts you will be willing to improve and connect with other data.
Innovation Is About Arguing, Not Brainstorming. Here's How To Argue Productively Turns out that brainstorming--that go-to approach to generating new ideas since the 1940s--isn’t the golden ticket to innovation after all. Both Jonah Lehrer, in a recent article in The New Yorker , and Susan Cain, in her new book Quiet , have asserted as much. Science shows that brainstorms can activate a neurological fear of rejection and that groups are not necessarily more creative than individuals. Brainstorming can actually be detrimental to good ideas. But the idea behind brainstorming is right. So if not from brainstorming, where do good ideas come from? At Continuum, we use deliberative discourse--or what we fondly call “Argue. So we argue. Breaking down hierarchy is critical for deliberative discourse. It’s widely evangelized that successful brainstorms rely on acceptance of all ideas and judgment of none. But I’m also a fan of “no, BECAUSE.” We conduct ethnographic research to inform our intuition, so we can understand people’s needs, problems, and values.