Voice picking is a picking method in which the operator receives, via a headset connected to the WMS, voice instructions indicating the location and quantity to pick, then confirms each action performed out loud, hands and eyes free.
How voice picking works
The system relies on a terminal worn by the operator (headset, microphone, and often a small control unit) connected in real time to the WMS via voice-recognition and speech-synthesis software. The WMS sends an instruction ("location A12, pick 6 units"), the operator carries it out and confirms verbally, generally by stating a check digit displayed on the location label to validate that they are at the right spot. The system then moves on to the next instruction, without the operator needing to check a screen, a scanner, or a paper pick list.
The main advantage of voice picking over a handheld scanner or a paper list is that it fully frees the operator's hands and eyes, which reduces unnecessary movements and speeds up throughput, especially on orders with many different lines. It also reduces picking errors thanks to the voice check digit. Unlike pick-to-light, which requires physically fitting every rack location with a light indicator, voice picking doesn't require fixed infrastructure on the racking: it's the terminal worn by the operator that does all the work, making it easier to deploy on an existing site or to adapt if the layout changes.
Voice picking is particularly well suited to temperature-controlled warehouses (where wearing gloves complicates using a touchscreen scanner) and to zones with a high volume of order lines. In return, it requires a learning phase for each operator's voice to be recognized by the system, and good acoustic insulation to remain reliable in a noisy environment.
FAQ
What's the difference between voice picking and pick-to-light?
Voice picking guides the operator with voice instructions via a headset, with no fixed infrastructure on the racking. Pick-to-light requires fitting each location with a light indicator, which offers visual guidance but requires more investment in fixed infrastructure on site.
What are the benefits of voice picking?
It frees the operator's hands and eyes, reduces errors through voice confirmation of a check digit, and adapts easily to an existing site with no additional fixed installation, unlike pick-to-light or a wired scanner.
Is voice picking suitable for all warehouses?
It's particularly well suited to zones with a high volume of order lines and to environments where hands need to stay free (cold, gloves). It does, however, require good acoustic insulation and a calibration phase for each operator's voice.
Related terms
Pick-to-light / put-to-light · Picking · WMS · Forklift operator · Order picker (occupation).
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