Guidance for podcast producers
Podcast producers are advised to also read the tab 'For podcast viewers / listeners' to understand the accessibilty features available on University of Oxford Podcasts (podcasts.ox.ac.uk), especially Closed Captions (CC).
Why make your podcast accessible?
As noted above, the European WCAG 2.1 regulations require all audio and video content ("time-based media") published to the web to be supported by text equivalents. This means audio podcasts require a transcript and video podcasts require Closed Captions.
If you host your podcasts within a self-managed public webpage or website, the regulations also require this be accessible.
The WCAG regulations are most obviously there to ensure web content is available for less able users, but many of the considerations for this group of people have positive effects on usablilty for everyone. Here is a useful webpage about why to make your podcast accessible.
Defining Closed Captions, transcripts and subtitles
In the context of accessibility, the above have distinct meanings.
Closed Captions, also known as CC, are intended for those with limited hearing to improve comprehension of video content. Unlike subtitles, captions are in the language the video has been produced in. Captions may include information about non-verbal cues, such as music playing and noises off-screen. Captions are usually stored in a text-only file which consists of lines of dialog and the timing information for when to display each one. "Closed" captions mean the text can be shown or hidden as preferred, while "open" captions are always displayed ("burned in").
Transcripts contain the dialog from the media, often with notes on who is speaking if there are multiple presenters. They are usually provided in PDF or text-only format. They do not normally contain timing information.
Subtitles are primarily for hearing users who do not understand the original language of a video and require a translation while they are viewing it (e.g. "foreign language" films).
Generating Closed Captions and/or a transcript for a podcast
Generating Closed Captions for a video using Panopto:
IMPORTANT: A captions file is required for each video podcast episode published to the University Podcasts site.
University of Oxford staff and students can generate captions for free using Panopto, the lecture capture software. Once a video is uploaded to your personal Panopto folder, captions should be generated automatically. You can then edit them for accuracy and download the captions file. It will be a text-only file ending in 'srt'.
The captions file can then be used alongside your video on the University Podcasts site, or other video file repositories such as YouTube.
Below are the basic steps for generating captions for a series for publication on University of Oxford Podcasts (podcasts.ox.ac.uk). Some knowledge is presumed. See the Replay support page on generating captions for more details including a video guide.
- Log into Canvas then access your My Panopto folder
- Create a new sub-folder for your series content, e.g. 'Philosophy For Today'
- Upload the podcast media files
- Wait for automatic captions to be generated
- Correct minor mistakes using Panopto's built-in captions editor
- Download the captions file for each episode, renaming it to match the name of the episode
- Email the captions files to Educational Media and we will upload them into the MediaPub podcast publishing system
Please email Educational Media Services for assistance with publishing captions.
Transcribing audio using Microsoft Word Online:
IMPORTANT: A transcript is required for each audio podcast episode published to the University Podcasts site.
University of Oxford staff and students with access to Nexus/Office 365 can use Microsoft Word Online to generate a transcript from an audio file. It will try to identify different speakers, you can edit the transcript for accuracy, and choose whether to include timing information. Users are limited to 300 minutes transcription (5 hours) per month. See this Microsoft support page on using Word Online to transcribe your audio file.
This feature is not available in the installed (desktop app) version of Microsoft Word.
Tips for improving accessibility when creating an audio/video recording
When recording a teaching session, please consider the following points, which will ensure the recording is an effective resource for students. This guide was produced in collaboration with the University of Oxford Disability Advisory Service.
- If using a fixed microphone, be sure to stay within range of the microphone when speaking. If it is necessary to turn away (for example to write on the board) stop speaking and resume when facing the microphone again.
- A wireless lapel microphone is better for accomodating board work and/or moving around the lecture theatre. Place the lapel microphone approximately 15-20 cm below your chin and ensure a clear path to the microphone (e.g. no scarves covering the mic).
- In large spaces echo can be a problem. To overcome it don’t stand too close to the sound system speakers.
- Speak clearly at a normal, steady pace
- Describe visual information
- Repeat questions from the audience before answering as the original questions might not be audible in the recording.
- Describe visual information containing core learning material. This is especially important for audio-only recordings but will help people with visual impairments in all cases. Mention slide numbers during the lecture (i.e. "Here on slide 6...") to make it easier to follow any accompanying slides on audio-only recordings.
Face towards the audience and the camera whenever possible, especially for important points. Looking at the camera will make the experience more engaging for students.
Stay within the camera frame.
Adjust the lighting to remove glare from overhead lights.
Maximise the visibility of handwritten notes and drawings and be conscious of size and readability. Is the text readable from camera distance? On a whiteboard use fully inked markers in high contrast colours such as black or dark blue. On a blackboard press firmly so chalk leaves a solid white image
Consider using a dedicated camera for capturing your whiteboard/chalkboard text and images clearly.
Consider the background and the image that will appear on the screen. Complex patterns or high contrast colours on walls, furniture and even clothing might cause clarity issues for the camera. Muted, solid colours work most effectively.