Use observations from normal use: when it started, whether it followed drum movement and which programme stage was active. A simple description can be sufficient to justify assessment.
Understanding this situation
Do not run a machine with scraping, violent impacts, leakage or electrical symptoms solely to make a recording. A recording already taken safely can help, but it does not identify the internal cause by itself.
A useful next step
Distinguish an external object tapping the cabinet from a sound apparently inside the machine only where that is obvious without moving or opening it. Mention missing pocket objects or recent changes. Stop further use if the noise suggests damage or unsafe operation.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.