Glossary
What is voice of customer?
Definition
Voice of customer (VoC) is the structured practice of collecting and acting on what customers say about their expectations, preferences, and problems.
Voice of customer started in quality management and product development; Abbie Griffin and John Hauser’s 1993 paper formalized it as a structured way to capture customer needs in the customers’ own language and carry them into engineering decisions. Marketing and CX teams later adopted the term for the broader family of listening programs.
A working VoC program has four stages: collect (surveys, NPS, interviews, reviews, support tickets, sales call notes, social conversation), structure (themes, frequency, severity), route (every theme has an owner), and close the loop (customers see something change). Programs that stop at collection produce dashboards nobody acts on, which is the most common way VoC dies. Cadence matters as much as coverage: a quarterly readout arrives too late to help the customer who complained in week one.
The structural blind spot is that most VoC channels are solicited: they hear from people willing to answer when asked. The customers who churned silently, the prospects who never converted, and the users venting in a subreddit at midnight are all out of frame, and they often carry the information a team most needs and least hears.
How this shows up in Waldo
Waldo fills the solicited-only gap: audience conversations across Instagram, TikTok, Reddit, X, and YouTube capture what customers and prospects say when nobody is surveying them, clustered into themes with verbatims and source links, ready to sit alongside the survey and ticket data your VoC program already collects.
Related terms and reading
Put Waldo behind your agents
Brand, category, and audience intelligence over 200+ API and MCP endpoints. Sign up, mint a key, and run it against the brands you actually track.