Audio Signal Processing

Weekly Bible study currently reading through the Gospel of Luke. We meet at Teaism in Penn Quarter. You can find us in the downstairs seating area!

🍻 What: ProductTank Happy Hour -- Join your fellow DC product people for a casual opportunity to connect and learn more about all things product from our ProductTank members. Whether you are a seasoned veteran or interested in diving into product management, all are welcome! 🏢 Where: The Admiral in Dupont (1 block from Dupont Metro) -- Guests will be asked to open their own tab. There is no minimum required. 🕒 When: 3/31/26 6:00-8:00 PM 👋We hope to see you there!

Discover the power of your breath to manage your mind and experience instant peace & calm. Join a 60-minute free Workshop and get a glimpse of the Sudarshan KriyaTM- The breathing technique that is revolutionizing the lives of millions. What you’ll discover at ‘Beyond Breath’ ✔ A taste of the Sudarshan KriyaTM, a breathing technique taught in the Happiness Program ✔ An instant energy booster that awakens & relaxes your mind - Take it home and practice daily! ✔ The peace & calm of a unique guided meditation ✔ Secret keys to manage your mind ✔ The power of surrounding yourself with positive, like-minded people. You can use your breath to master your thoughts and emotions - the key to managing the quality of your day. The Happiness Program At the end of this workshop you may enroll into the Happiness Program (3 days, 3 hours each day) to learn the Sudarshan KriyaTM, a science-backed, rhythmic breathing technique through which you can: Tap into a reservoir of energy and use it as you please! Relieve deep-rooted stresses and anxieties Uplevel your productivity Overcome emotional blocks, move on from past events and shed limiting beliefs Heal your body & gain power over your mind Experience the true state of meditation Learn more about the Happiness Program & the Sudarshan KriyaTM in our introductory workshop 'Secrets to Meditation'. register: http://aolf.live/introSKY

Join the young adults from Triumph of The Cross (a Maryland-based ecumenical Christian community) for a Bible study complete with good discussion and good food. Meetings happen weekly on Tuesday evenings at 7:00 p.m. aside from the first Tuesday of each month, and participants are encouraged to stay afterward for a home cooked meal and fellowship. We look forward to meeting you!

If you love A Cappella Singing come check out the Harmonizers and Metro Voices...The lower voice and treble voice choruses- both part of the Alexandria A Cappella Collective. We will be rehearsing on March 31st at Fairlington Presbyterian Church at 3846 King St., Alexandria, VA 22302. We pride ourselves on providing opportunities for everyone to sing. We welcome everyone to visit our rehearsal and enjoy the singing while learning more about us!

**\* This is an in-person event** Most people only experience finished products. Very few get the opportunity to work on something before it's finished when it can still be shaped. This is one of those opportunities. Karen Hold, Director of DT:DC, is currently developing a new innovation skills workbook with Jeanne Liedtka, based on over a decade of teaching and working with leaders across organizations, universities, and the DT:DC community. Her work focuses on the five statistically validated skills that help people develop as innovation leaders. This workbook builds on her work in design thinking and innovation education, including programs at the University of Virginia Darden School of Business, École des Ponts Business School (Paris and Casablanca), and Boston College. For this session, Karen will share a draft chapter of her new workbook for live testing. This is not a polished workshop. It's a working lab. You won't just participate. You will help shape the material itself. What We’ll Be Testing: * Whether the exercises actually help people think differently * Where the material is clear and where it breaks * What feels useful vs. what needs to be reworked This is the kind of work that typically happens behind closed doors. **What You'll Do** Working in small groups, you will: * Work through exercises from a draft chapter of the workbook * Apply them to real situations and ideas * Share feedback on what is clear, confusing, or missing * Help identify how the material can be improved You’ll get: * Early access to work that is still being developed * A chance to influence how this material evolves * Practical tools you can immediately apply * A behind-the-scenes look at how skill-building experiences are designed This is a rare opportunity to be part of the process, not just the outcome. Join us if you want to be part of something early, unfinished and actively evolving. No prior experience is required. **About Karen Hold** Karen Hold is the founder of Experience Labs and Director of DT:DC, one of the world's largest innovation communities connecting founders, designers, policymakers, and changemakers. Her work sits at the intersection of teaching and real-world application. She works with Fortune 500 corporations, federal government agencies and non-profit organizations, helping teams strengthen how they think, make decisions, and move ideas forward. She teaches in graduate and executive education programs, including at the University of Virginia Darden School of Business, École des Ponts Business School (Paris and Casablanca), and Boston College. Karen is a co-author of *Experiencing Design – The Innovator’s Journey*, and her work focuses on developing the skills that enable individuals and organizations to navigate complexity and create meaningful change.

We are Metro Voices, the treble chorus associated with the Alexandria A Cappella Collective (The Collective). On Tuesday, March 31st from 7-9pm we will be rehearsing at the Fairlington Presbyterian Church at 3846 King St, Alexandria, VA 22302. Please visit and sing with us or just listen to our rehearsal...we love guests. We rehearse at the same time and place as The Harmonizers, the lower voiced chorus associated with The Collective. Here's an article about our success in a barbershop style convention. https://www.alxnow.com/2025/03/27/notes-alexandria-singers-win-top-honors-at-regional-contest/ Hope to see you soon.

This class will be a terrific skill builder. Caixa (Brazilian snare drum) is fundamenta to the energetic pulse of samba from Rio de Janeiro. Repinique's unique tonality adds texture and momentum. Learn the basics and beyond. Improve your technique, heighten your playing stamina and learn new patterns! Get new information from Rio to grow your skill. $20 Drums provided.

Get started! Whether you are experienced or a complete new thisdrum class offers fun for you. Learn the basics of popular Brazilian rhythms: samba, samba reggae, axé, ijexa and more. We provide the drums in a fun atmosphere to learn. Drop in:$15

This is an absolute beginner Bachata group class. It is specifically designed for those with no prior experience in Bachata and participations does not require having a partner. $25 per person for 90 minute class. [Click Here to Sign Up](https://form.jotform.com/250681156839162) Every Other Sunday: 2:00 pm to 3:30 pm Beginner Bachata.

**The Sound Spa Immersive Experience with Dr. Ivy Shadiah** *Enter the Sound. Reset the System. Remember the Self* Experience a transformational nervous system reset designed to restore emotional balance, release accumulated stress, awaken manifestation energy, and guide participants into profound states of peace, clarity, and bliss.Through the sacred integration of **Sound Vibronics®**, **Sonic Mindstreaming®**, breathwork, and vibrational resonance, participants enter a restorative sonic environment where the body softens, the mind quiets, and the soul remembers its natural harmony. This is not simply relaxation. It is **neurological restoration**, **emotional renewal**, and **conscious creation**. Participants experience: * Deep nervous system regulation * Release of anxiety and energetic overload * Reconnection to inner vision and purpose * Expansion of creativity and manifestation capacity * Moments of pure vibrational bliss and sacred stillness The Sound Spa is where healing meets frequency… where stress dissolves… and where dreams begin to reorganize into reality. Fri., Apr. 3rd, 6:30 pm – 8:00 pm. Held at Meditation Museum, 9525 Georgia Ave., Silver Spring, MD 20910. Free Event – Register at: [https://shorturl.at/nz3lU](https://shorturl.at/nz3lU)

Whether you're new to Insight meditation or an advanced practitioner looking for like-minded people to sit with, you're welcome to join us at our Sunday morning drop-in group, sponsored by the Insight Meditation Community of Washington. Insight meditation cultivates our natural wisdom and compassion. Meditation practice develops concentration, which allows us to calm and steady the mind. This class includes a 30-minute lightly-guided meditation, followed by a short talk and time for questions and discussion. The size of the group usually runs somewhere between 25-40 people in-person and between 12-25 online. Chairs are provided, or you may bring a sitting cushion or bench. You may also use the blankets and bolsters offered by the yoga studio. **We offer both in-person and online attendance.** To learn more about our topics and teachers, view our videos or **get the Zoom link**, visit our [class page](https://imcw.org/event/?eventId=735&utm_source=MeetUp&utm_medium=referral&utm_campaign=vienna-drop-in).

UXDX, Refresh DC, Friends of Figma, and User Experience University are joining forces for a night of good drinks, great convos, and even better connections. Whether you're a UX designer, researcher, product manager, or engineer, if you work in the product space, this night is for you. Come connect with the people shaping DC's design and tech scene. What to expect: — Network with DC's UX, product, and engineering community — A chance to WIN a free ticket to UXDX during our giveaway — Score 25% off tickets to UXDX just for attending! Bring a friend (or two) and we’ll see you there!

We meet to learn and practice American Sign Language and to grow our familiarity with Deaf culture. Facilitated by hearing folks (with a connection to a professional interpreter) using Deaf-created content. People of all ASL skill levels are welcome! As we learn, we hope to connect more with the Deaf community in Central Ohio. Join us as you're able! Come regularly or just once - whatever you're looking for! Each meetup will explore different topics related to ASL/Deaf culture, and will feature time to practice conversation with one another. Just bring yourself and a willingness to learn!

Central Ohio Radio Enthusiasts—CORE—is an informal community for anyone enthusiastic or curious about radio—whether you're new to radio and want to learn or you've been tinkering for years and want to share. Ham radio operators, GMRS users, Meshtastic fans, software-defined radio nerds, makers, and technical and non-technical folks are all welcome. No experience required or expected. This month we have **WiFi HaLow: Introduction and Practical Use** with **Alex Barbur**. Details are are [core.radio](https://core.radio).

Pay attention! We’re delaying a week for those of you who may be on Spring break and/or celebrating the holiday. Ok, no pancakes, but waffles-a-plenty. Join the local UX and Digital Design community for a casual monthly breakfast. Look for us upstairs!

Some trained COUNT volunteers work together once a month at RMH (http://www.rmhc-centralohio.org/volunteer.php) as Housewarmers (usually on the 1st Sunday from 1 – 5 PM). Some schedule other shifts at their convenience. You may try this out with less fuss by following a "Fast track" or go through the normal process. Fast track • Arrange a time to shadow a COUNT volunteer. Call Dave Nohle at 614-268-9558 (cell). • Show up and try it out. • Complete application, etc. later. Normal process • Complete an online application (http://rmhc-centralohio.org/volunteer/). • Attend orientation in advance. • At orientation you will complete forms agreeing to keep family/patient info private and allowing a background check and tour the facility. • Complete one training shift. Daily shifts are: morning 9 AM - 1 PM, afternoon 1 - 5 PM and evening 5 - 9 PM. • Schedule shifts online using the on the RMH scheduling system (http://www.volgistics.com/ex/portal.dll/?FROM=32895). The Ronald McDonald House (RMH) provides housing and meals for families with sick children. The Columbus RMH is the largest in the world with 137 rooms. COUNT has been volunteering there since May 2014. Housewarmers work with RMH guests to provide a home-like environment - greet, assist with family needs, answer phones, give tours, assist with checkin/checkout, prepare guest rooms after checkout, clean facility, laundry, restock supplies and staff the front desk. RMH Housewarmers volunteer at least one four-hour shift a month. All Housewarmers must complete an application and agree to a background check before they can be full fledged volunteers.

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

**TBA**

The Fellowship of the Star Schema: Transforming OLTP Data for Power BI One does not simply build reports on OLTP data. Join us on an epic journey from the depths of raw, normalized tables to the shining halls of a well-modeled star schema fit for Power BI greatness. We will demystify the differences between OLTP and OLAP, walk through star schema vs snowflake (and why Power BI has a clear favorite), and show you the compression differences between normalized and columnar storage that will make you never look at an OLTP model the same way again. We will cover the different types of dimensions, when to use them, and how to handle Slowly Changing Dimensions without losing your mind. You will leave knowing exactly how to identify a bad model, how to convert OLTP data into a clean star schema, and how to forge relationships that rule them all. Whether you are a data wizard, a curious hobbit, or somewhere in between, your models will never be the same.