#Tutorial – Record a #Zoom conversation with #Camtasia and produce an Audio output for your podcast !

Hi !

Some time ago I wrote a post about how to use Camtasia and Skype to record an audio conversation and later create an audio file for your podcast. Today we live in Zoom days, so it’s time to update this post to perform the same task using Zoom and Camtasia.

Disclaimer: Zoom, in their free mode, provides the feature to host and record your meetings. With a limit of 40 minutes of meeting duration and the audio quality is decent, not so good, but decent. This post, is an option if you want to have more control over this.

The main premise to record this is

  • We will record the local microphone in one channel
  • We will record the input audio for the meeting in another channel

I use a Bose NC 700 connected via cable to my computer for the incoming audio, and a Jabra Puck for the microphone. (see references)

Disclaimer 2: I know, there are much better microphones. I even got a Yeti one, but, the Jabra have an amazing and quick mute button. That’s why I use it.

Zoom Settings

Let’s open Zoom and update some of the settings.

In Zoom settings, I have the following settings

  • Computer Audio goes out by monitor. And I have my headset connected there.
  • Incoming audio, aka microphone, is set to the Jabra Puck.
Zoom audio settings

And that’s it for Zoom, now it’s time to check Camtasia Settings.

Camtasia Recorder

Camtasia Recorder

Once we launch Camtasia Recorder, we need to change the following settings

  • Audio device: The same Microphone device you defined in Zoom. The Jabra Puck.
  • Check [Record system audio]. This will record the output of the audio in a different track, and this output will be the voice of the other participants in the Zoom Meeting
camtasia audio settings

You can also make this quick selection directly from the Camtasia Recorder interface. Remember CHECK THE [Record System Audio] OPTION

camtasia audio recording options quick

So now you can start the recording and have some fun!

Audio Output in Camtasia

Once you finish your recording, you’ll be prompted to save this recording. And also to edit the recording using Camtasia Studio. Once you drag the recorded file to the track section you will see both recordings.

  • One track for your voice
  • One track for the Zoom meeting

Camtasia studio audio options are good enough to make some good audio improvements. If you right click on one of the tracks you can select the [Edit audio] option and

  • Enable volume leveling
  • Enable noise removal
  • Mix to mono

You can also [Add audio point] in one track to manage the volume in the track. In example: You can add a background music in a new track, and volume down the music using audio points, once the track for the Zoom Meeting is added into the mix.


Finally, once you are happy with your project, you can create an audio file. To do this, you must select the option [Share // Local File] and select the location for your M4A file.

And that’s it! Now you can record your Zoom conversations using Camtasia.

Happy coding!


El Bruno


Event – NetCore Conf

Matías Iacono

This weekend I will be giving a lecture as part of the NetCoreConf 2020 event.

Due the current situation around the world, this event will be “virtual” meaning that all sessions will be recorded and streamed during the event. But, thanks to this, people from different parts of the world will be presenting different topics.

In my case, I will be talking about code optimization, remembering some old-but-good algorithms to improve performance and raising flags on bad overuse of some .Net libraries and how these could impact our final product, even if we do not notice that.

Of course, this event is mostly in Spanish but will be transmitted using YouTube as platform which gives some very good tools to autotranslate videos to any language.

If you want to know more about the event, click here: https://netcoreconf.com/virtual.html

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#Event – Machine Learning.Net y AutoML, esta vez en Español !

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Buenas !

Seguimos en modo StayAtHome, y una forma excelente de conectar con las comunidades, es participando en eventos ya sea como Speaker o como Attendee.

Esta vez tengo la oportunidad de hablar en NetCoreConf:

NetCoreConf 2020

Lo último en tecnologías Microsoft y mucho más con los mejores expertos. Donde podrás aprender, compartir y hacer networking. Asistiendo a diversas Conferencias y Workshops. Hablaremos sobre NetCore, Azure, Xamarin, IA, Big Data. ¿A que estas esperando?

NetCoreConf 2020 realizará el primer evento virtual a nivel global dedicado exclusivamente al sector del desarrollo y consultoría que busca descubrir y dar a conocer las nuevas tecnologías de vanguardia y crear vínculos estratégicos que generen sinergias conjuntas entre los profesionales del sector, empresas e instituciones.

NetCoreConf 2020

Mas información NetCoreConf Virtual 2020

La agenda es impresionante, y yo hablaré de uno de los productos más interesantes que Microsoft ha presentado en los últimos años: Machine Learning.Net. En mi sesión comentaré un poco la historia y algunos ejemplos del producto, y además un poco de una herramienta muy interesante para los no programadores: AutoML.

Finalmente, agradecer al gran equipo que esta detrás de este evento:

Happy coding!


El Bruno

Managing Azure Kubernetes with Windows Subsystem for Linux

Roy Kim on Azure, Office 365 and SharePoint

Building upon my previous blog post Managing Azure with Az CLI and Windows Subsystem for Linux, I want to demonstrate examples and techniques in managing a Kubernetes cluster on Azure Kubernetes Service (AKS) in a bash shell using Windows Subsystem for Linux.

As a mainstream Microsoft platform developer and engineer for most of my career, I use many script examples that work in PowerShell and windows cmd terminal. As I have being doing more projects with open source projects on Linux and Kubernetes, I come across more script examples and command line tools that work exclusively or better in a Linux shell. Such scripts just can’t be done or ported easily to a windows console or PowerShell script.

Therefore, using WSL on my Windows 10 machine, I am comfortably able to be sufficient Linux oriented systems engineer and developer.

VS Code with WSL connection to Ubuntu Linux Shell

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#RaspberryPi – Raspberry Pi Imager, super cool imaging utility. Bonus: source code included !

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Hi !

It’s time to setup a Raspberry Pi so my kid can learn a little Python with some local projects at home. And, it’s also time to test one super cool tool from the Raspberry Pi family: Raspberry Pi Imager, a new tool to image microSD cards with Raspbian.

Until today, I mostly used Balena Etcher, and it works amazing. However let’s give this one a try.

First step is to download the tool from the official Download page (see references). Lucky for us, we have the application with versions for Windows, macOS and Ubuntu. The install process is very fast.

raspberry pi imager setup process

Now we launch the app, and select the OS to install.

raspberry pi installer, welcome screeen

This time Raspbian is the one for me. I really like the chance to have other SOs here to select

raspberry pi imager select Raspbian OS

And, I will go even further and select the full version of Raspbian.

select raspbian full

Next step, is to select the target microSD Card, Device. F: for me.

select sd card, disk F

Now we are ready to write the image to the SD Card.

Ready to write the image.

Important: depending the selected image, writing process may take some time. The Full Raspbian version is +2.5GB and it needs to be downloaded in chunks. before starting the write process.

As usual, after writing, let’s verify !

raspberry pi imager verifing step

A couple of minutes later, the process is done !

write process complete


And a couple of notes as a bonus. The tool is open source, and this is great! (see references). And, a video is much better than my posts !

Happy coding!


El Bruno


#Event – Resources used in the #devdotnextdigital session around Anomaly Detection #devdotnext2020

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I had an amazing time with the Dev.Next team in a virtual session. The agenda was great, I joined a couple of session and it was great ! Take a look at the full set of contents here. Recording sessions soon !

Important: the event was postponed to August, and you can more information here.



Updated source code soon !

Reference Links


Machine Learning.Net

Cognitive Services Anomaly Detector

Azure Machine Learning

Happy coding!


El Bruno

#Event – #GlobalAICommunity Virtual Tour, April 8th. A full virtual day with sessions around AI

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Globa AI Community on Virtual Tour Logo

Hi !

On the 8th of April 2020 the Global AI Community is hosting a 30 hour live event across timezones in different languages. Mark the date in your calendar, subscribe to our YouTube channel and tune in.

We updated the agenda with an amazing set of great speakers, and super cool sessions. Take a look at the agenda and subscribe to the event here:


And as usual, a video is much better

Again, take a look at the agenda, say thanks to the organizers and we will see each other on April 8th !

Happy coding!


El Bruno

How to create a Bot to help answer COVID-19 questions in 10 steps with QnAMaker?

In times of isolation, we are all thinking how can we help people understand the situation that the world is going trough. So it occurred to me to create a small Bot that can help answer some of the most common questions regarding this virus. I start my development at 5:00 pm on a Sunday, March 22, 2020, on my fifth day of quarantine for this virus.

Analyzing the necessary requirements to create a bot as quickly and easily as possible, the first thing I consider is the QnA Maker service provided by Microsoft.

QnA Maker

QnA Maker is one of the Services provided by Microsoft. This service helps a bot answer user questions, matching it with the best possible answer from its knowledge base. Microsoft suggests using this service for cases in which you want to provide customers with information they may be looking for frequently, support documentation or…

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#Podcast – NTN 45 – Azure Kinect en Corona Times ! con Ivanta Tilka @ivanatilca y Juan Quijano @jc_quijano

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Hoy tengo la suerte de hablar con Ivanta Tilka (@ivanatilca) y Juan Quijano (@jc_quijano) sobre uno de mis dispositivos preferidos: Microsoft Kinect, y en esta ocasión, de la versión Azure Kinect. Veremos un poco de la historia del dispositivo, características técnicas, capacidades de desarrollo y más.

Juan es Microsoft Certified Trainer, Arquitecto de Soluciones en Azure y Consultor independiente en implantación de DevOps. Ivana es Microsoft AI MVP y Quality Manager en 3XM Group.

Happy coding!

Ir a descargar


Aquí hay un par de artículos y videos de Ivana al respecto:

Happy coding!


El Bruno