There are a number of ways in which students can provide evidence of learning. Voice, ie them answering questions in audio format, are a useful way of checking understanding and giving a more creative way of showcasing. There are a number of apps available, notable amongst them is Audacity Audacity is free and easy to use. Even better than that are the range of online voice recorders such as https://online-voice-recorder.com/ This online platform requires no installation, no sign-up and no conversion. Simply hit the microphone icon to start and stop and then download. Even has a pause facility for those coughs and squeaks. Ideal for a podcast. Here's a short video on how to use it: