Course creators can record or upload audio files for each item in the database for their course. At this moment, bulk upload of audio files is not possible. To upload audio files, go to the 'Edit' page for your course, click 'Databases' and then select the database that you wish to add audio to.
Please note: if your course only has one level, you'll have to add a new level to reveal the Databases tab. Alternatively, click on the 'Advanced' button at the right of the screen and click on 'Add column'.
If your course draws items from one of the language wikis, then you will see an 'Audio' column already there. If not, you can click 'Add column' and select 'Audio'.
You can upload .mp3 files, and you can add multiple files for each item (e.g., the same word or sentence pronounced by different people (male/female), or with different accents). If you choose to test from audio on a level, then Memrise will choose randomly one of the files to play in the test.
You can create your own audio by clicking on 'Record'. This tool is optimised for Google Chrome, so you may have trouble using it in other browsers.
Please ensure Flash Player is enabled and allowed to run on Memrise.