Describe the language requirement
List the languages required for each use case and whether entire calls or shorter segments must use them. A call can include a scripted greeting in one language and a substantive conversation in another. Define what qualifies a recording for a language slice instead of using an unexamined file-level tag.
Measure useful intersections
Request counts or durations by language, call domain, channel setup, and source period. Distinguish call duration from actual speech duration where available. A large language total may be concentrated in one agent team or one recurring script, which limits how much conversational variety it represents.
Handle regional and accent metadata cautiously
Ask how regional or accent labels were obtained and what confidence they carry. Country of a phone number or business location does not directly establish a speaker’s accent. Use source-supported descriptions and avoid inferring personal attributes from a voice when the project does not require or substantiate them.
Review reference capabilities
Specify which languages need transcripts, diarization, or human review and how language-specific uncertainty will be handled. Send Fiund your mandatory language combinations, minimum useful coverage, and permitted source scope. Each proposed collection needs project-specific review; a multilingual label alone does not establish that the right combinations are present. A useful language coverage table can show two languages separately for billing and technical-support calls, with call counts and source groups in each cell. Missing combinations become visible immediately. This avoids implying that every supported language is represented in every operational domain simply because both dimensions appear somewhere in the collection description.
Review checklist
- Define call-level and segment-level language
- Request language by domain and source counts
- Record how regional labels were obtained
- Specify reference-review capability per language