The Raspberry Pi as a personal computer can run literally thousands of applications (apps). The Raspbian Stretch distribution comes with dozens of apps installed; like the Libreoffice Suite for documents, spreadsheets, drawings and presentations. Many more apps can be downloaded and installed from the Web; just look for Linux and particularly Debian compatibility. This activity will will focus on one of the apps I have found to be most useful (besides the Arduino IDE already covered).
What is Audacity?
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Free, open source, cross-platform audio software. Audacity is an easy-to-use, multi-track audio editor and recorder for Windows, Mac OS X, GNU/Linux and other operating systems. Developed by a group of volunteers as open source and offered free of charge. Amazing support community.
- Raspberry Pi projects with a microphone. There are tons of possible projects with a Raspberry Pi, and for some of them, the microphone quality will be essential Now that you have a functional mic, maybe you can think about this kind of projects. I give you 2 or 3 examples to give you some ideas.
- The Raspberry Pi is a tiny and affordable computer that you can use to learn programming through fun, practical projects. Join the global Raspberry Pi community.
- Enable snaps on Raspberry Pi and install AdGuard Home. Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully. Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
- Raspberry Pi OS (previously called Raspbian) is our official operating system for all models of the Raspberry Pi. Use Raspberry Pi Imager for an easy way to install Raspberry Pi OS and other operating systems to an SD card ready to use with your Raspberry Pi. Raspberry Pi Imager for Windows; Raspberry Pi Imager for macOS; Raspberry Pi Imager for Ubuntu.
How would you like to have your own recording studio? Usually just the basic equipment costs thousands of dollars. Sound recording is professionally done using several parallel tracks; each can be adjusted for volume, tone, speed and many other special effects. The reason Audacity made my list of truly useful apps is that it provides many features of a recording/sound editing studio to your computer at no cost.
Our kit includes the basic accessories needed for using Audacity: speakers and a microphone. Take a moment and make sure they are hooked up to the Raspberry Pi.
On your Raspberry Pi’s desktop open the menu and select the Audacity application.
This is your recording studio control board. Click just below the word ‘Audacity’ to begin monitoring the mic (short for microphone). Speak into the mic and see the green status bar level change with your voice.
Make a little recording of you voice by clicking on the round red ‘Record’ button and speak in to the mic. Click on the square ‘Stop’ button at the end. Click on the green ‘Play’ button and listen to your voice (the right speaker has a volume control on its back).
Modify Your Voice through Special Effects
In the top toolbar there is an ‘Effect’ menu. Open the Change Speed sub menu and try speeding up and slowing down your voice as shown above. Did you sound like a chipmunk? Try the Echo effect. There are many other effects to explore: have some fun with it!
Do This At Home
Raspberry Pi Kit
If you want to install Audacity on your own Raspberry Pi, open the terminal and type:
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sudo apt-get install audacity
Raspberry Pi Computer
amixer cset numid=3 1 [to set audio to 3.5mm jack instead of HDMI]