In this experiment, we will use our Analog Discovery™ to play back .wav files through the speaker included in the analog parts kit. The arbitrary waveform generator (AWG) instrument has the capability of importing data in several formats—.wav files are one of these formats.
The Analog Discovery can only import relatively small .wav files. A few files which meet the Analog Discovery's requirements can be found at the link to the right.
|Qty||Description||Typical Image||Schematic Symbol||Breadboard Image|
|The Buzzer/Speaker in the analog parts kit has two terminals. If a time-varying voltage is applied between the terminals a film in the speaker vibrates, converting the voltage waveform to a pressure waveform with a similar “shape”. Note: The speaker in your parts kit may have different markings than the one pictured.|
If you have completed the Sinusoids and Swept Signals project and your circuit is still intact, feel free to skip to Step 2 of this exercise.
Connect one terminal of the speaker to the W1 terminal of your Analog Discovery.
Connect the other terminal of the speaker to a ground terminal on your Analog Discovery.
Insert the terminals of the speaker into your breadboard so that they are in different rows.
Connect W1 (the yellow wire) to one terminal of the speaker.
Connect ground (, the black wire) to the other speaker terminal.
Open WaveForms™ to view the main window.
Click on the WaveGen icon to open the waveform generator.