Content design
0 out of 12The audio’s structure is aligned with the intended learning outcomes
Define the intended learning outcomes before scripting or selecting the audio. Use them to determine its scope, sequence and emphasis, and ensure that explanations, examples, stories, interviews and other segments contribute to the knowledge, perspective or performance learners are expected to develop.1
Organise spoken content into meaningful conceptual sections and clearly signal important ideas, relationships and transitions. Because spoken information is transient, avoid long uninterrupted explanations when learners need to integrate several ideas; segmentation can particularly benefit learning from spoken text.23
Remove material that has no clear explanatory, evidential, contextual or motivational purpose. Do not assume that an entertaining or engaging audio format is instructionally appropriate unless its structure supports the intended learning outcomes.
The audio has a clear and relevant title
Use a concise, descriptive title that communicates the audio’s main topic or purpose and helps learners decide whether it is relevant to the current learning activity. The title should remain meaningful when encountered outside the immediate page context, such as in a course outline, search result, playlist or listening history.4
Prefer specific titles that distinguish the recording from related content. Put the most important identifying information early, and avoid vague, promotional or generic titles such as Introduction, Episode 3 or Listen now unless additional wording makes the subject clear.5
Keep the title consistent wherever the same recording appears, while using the surrounding introductory text to explain its particular relevance when it is reused in different learning contexts.
A brief introductory text accompanies the audio
Briefly explain what the audio is about, why it is relevant to the intended learners and how it contributes to the current learning activity. Where useful, identify the format or speakers, the central question or topic, and any prior knowledge learners need before listening.6
When the same recording is reused across different courses or activities, tailor the introduction to place it in the current learning context and emphasise its specific value for that use. Keep the text concise and avoid reproducing the audio’s opening, transcript or key conclusions.
Intro and closing jingles are brief and not distracting
If a recurring sonic identity is useful, keep introductory and closing jingles very short and clearly separated from the instructional speech. A brief, recognisable sound can signal the beginning or end of the audio without delaying access to the learning content. Netflix’s short “Ta-dum” sonic logo is a familiar example of this approach: distinctive enough to establish identity while requiring very little listener time.78
Avoid extended music, repeated branding, spoken promotional material or decorative sound that has no instructional function. Do not play the outro over important concluding information. There is no universal evidence-based duration threshold: use only as much audio as is needed for recognition or orientation, and omit the jingle entirely when it provides no useful function.8
Audio is clear, intelligible and technically consistent
Ensure that speech and all meaning-bearing sounds are easy to understand, without clipping, excessive reverberation, intrusive background noise, distortion or abrupt changes in level. Keep loudness consistent within each recording and across related audio so learners do not need to repeatedly adjust their device volume.910
Keep music and other background sounds low enough that they do not mask speech. Where spoken learning content includes background audio, prefer removing it, allowing it to be turned off or maintaining a substantial level difference between foreground speech and background sound.11
Check the final encoded file—not only the production master—on representative headphones, laptop or mobile speakers and under realistic listening conditions. Follow the loudness, peak and encoding requirements of the intended distribution platform rather than applying a single universal technical target to every learning audio format.10
A complete text transcript is available
Provide a complete text transcript for prerecorded audio-only content. It should contain all spoken information in the correct order, identify speakers where multiple voices are present, and describe meaningful non-speech sounds when they contribute to understanding the content.1213
Keep the transcript easy to find from the audio player and synchronised with the current version of the recording. Use readable headings and paragraphs for longer recordings, and preserve terminology, names, numbers and other learning-relevant details accurately.
A transcript should provide equivalent access to the audio content, not merely a summary or list of key points. It can also support searching, reviewing and quoting specific passages, but learners should remain free to listen, read or combine both modes according to their needs.
Audio length is appropriate to its learning purpose
Keep the recording focused on a coherent learning purpose and remove avoidable repetition, lengthy preliminaries and digressions. Shorter recordings can be easier to start, repeat and reuse, and listener-retention data show that unnecessary opening material is particularly costly.14
Educational audio may range from a few minutes for a focused explanation or instruction to substantially longer interviews, discussions and narratives where the additional context contributes to the learning purpose. Research has found different learner preferences across contexts, including approximately 20–30 minutes for educational podcasts in one higher-education study.15
When a longer recording contains several distinct topics or stages, divide it into meaningful, labelled chapters rather than shortening it at the expense of necessary explanations, examples or argumentation.
The speaking format supports the learning purpose
Choose narration, dialogue, interview, discussion or another speaking format according to what learners need to understand. Use a single narrator for focused explanations, instructions and other content that benefits from a clear, linear presentation.
Use dialogue when the exchange itself contributes to learning—for example, by exposing questions, misconceptions, alternative perspectives, reasoning, clarification or feedback. Research comparing tutorial dialogue with lecture-style monologue found stronger learning from dialogue when learners could observe meaningful tutor–student exchanges and their knowledge-building processes.16
Keep the language natural and conversational regardless of the number of speakers. Do not add artificial questions, additional speakers or scripted exchanges merely to make the recording sound more dynamic; every contribution should have a clear explanatory, evidential, contextual or motivational purpose.178
Key insights and takeaways accompany the audio
Provide a concise summary of the audio’s central ideas, conclusions, implications or recommended actions. Keep it available alongside the recording so learners can assess its relevance before listening and quickly revisit the most important points afterwards.18
Include only information that is actually supported by the recording and aligned with its intended learning outcomes. Do not reproduce the transcript, introduce new claims or make the summary detailed enough to replace listening when the explanation, discussion, examples or narrative are important to the activity.
Where appropriate, invite learners to recall or formulate the main points before showing the provided takeaways. Retrieval practice generally produces stronger long-term retention than simply restudying information.19
Referenced data and other materials are available
Provide direct access to reports, datasets, studies, slides, templates and other resources that the audio asks learners to inspect or relies on for important claims. Place them close to the audio player and, where useful, link them from the corresponding transcript passage or chapter so learners can move between the spoken explanation and its source.
Identify each resource with a descriptive title, author or organisation, date and relevant version. For datasets and research materials, prefer persistent identifiers and link to the specific version or subset used in the audio so the evidence can be located and verified.20
Include materials that help learners understand, verify or apply the content rather than collecting every resource mentioned in passing. Clearly identify paywalled, restricted or unavailable sources and provide an accessible alternative where appropriate and legally possible. Use descriptive link text rather than bare URLs or generic labels such as “click here”.21
AI-generated audio is reviewed before publication
Review every AI-generated recording against the approved source text before it is published. Verify that no words, sentences or sections are omitted, repeated, altered or invented, and that names, numbers, abbreviations, specialist terminology and multilingual passages are spoken correctly.
Listen to the final generated audio in full and check intelligibility, pronunciation, pacing, pauses, emphasis, speaker changes and overall naturalness. Correct pronunciations or regenerate affected passages where necessary; text-to-speech systems can require explicit pronunciation guidance for words they interpret incorrectly.22
For learning materials, prioritise ease and accuracy of understanding over how human-like the synthetic voice sounds. Human review remains important whenever pronunciation, prosody or generation errors could change meaning or provide learners with an incorrect spoken model.23
Localized versions are available for target languages and regions
Provide localized audio when language or regional context could limit learners’ understanding or relevance. Localization may include a translated recording, a newly recorded or synthesised voice version, a localized transcript and adapted supporting materials.24
Adapt terminology, examples, measurements, dates, names, cultural references and other context where necessary rather than translating the spoken words literally. Preserve the original learning outcomes, meaning and level of detail, and avoid cultural adaptations that introduce stereotypes or change substantive claims.
Review each localized recording with a proficient speaker before publication. Check pronunciation, terminology, pacing, naturalness and correspondence with the approved source, and keep audio, transcripts and supporting materials synchronised when the original changes. Clearly identify each available language and locale so learners can select the appropriate version.25