Retail Product Training Live Streaming: OBS Studio, vMix and Cloud Real-Time Captions
Retail headquarters can produce product-training livestreams with OBS Studio, vMix, or other tools and use POLYV cloud real-time captions to help store staff follow key information.
Before a new product reaches stores, staff often need to understand selling points, display rules, operating steps, and common questions in a short period. They may watch between customer interactions, in a shared space, or on a mobile phone where audio is not ideal.

*Figure 1: POLYV enterprise live streaming product interface. Actual functions and interface details depend on the product version and project configuration.*
How can retail headquarters help store staff understand product-training livestreams more clearly? In short: Headquarters can combine an instructor, product close-ups, slides, and demonstrations in OBS Studio, vMix, or another third-party production tool, send the feed to POLYV, and enable cloud real-time captions. Captions can support mobile, silent, and noisy-environment viewing, while official training materials and assessments remain centrally managed.
01 / Start with the audience and the viewing context
The challenge is not merely starting a live session. Headquarters needs consistent information across stores, roles, and shifts, with replay, supporting materials, and a way to review participation afterwards.

*Figure 2: POLYV cloud recognition update for real-time captions, available after third-party or in-house streaming tools send a feed to POLYV.*
02 / Keep the production workflow where it belongs
OBS Studio and vMix are third-party streaming and live-production tools. They can combine cameras, presentations, media clips, audio, and visual packaging locally before sending a programme feed to a live channel. They are not POLYV products and should be described as part of the production layer.
A local production team can make the lesson clearer by switching between the instructor, product table, screen share, courseware, and recorded clips. POLYV then provides the cloud viewing experience, interaction, replay, and data layer for store audiences.
Before release, run an end-to-end rehearsal with real speakers, terminology, slides, inserted video, background music, network conditions, and desktop and mobile viewing. The test should also define who owns production, the live room, audience support, and the response to an exception.
03 / Configure captions as a viewing aid
After the stream is stable in the POLYV live channel, enable cloud recognition in the real-time caption settings and configure the original language and, where required, translated caption languages. Viewer-side placement and switching can differ by page layout, device, and channel configuration.
Viewers do not need OBS Studio or vMix. They enter the configured POLYV viewing page and use the available caption experience there. Captions can support silent viewing, noisy environments, hearing accessibility, and cross-language comprehension.

*Figure 3: Role separation between third-party production tools, POLYV live streaming, the viewer experience, and operations.*
04 / Put governance and replay into the same workflow
Captions are supplementary text. Product names, specifications, display terms, and operating instructions should also be available in approved courseware, documents, and assessments. Viewing records indicate participation, not necessarily completed skill acquisition.

*Figure 4: Example views of real-time captions and the related configuration area.*
For sessions with medical, financial, legal, safety, product, or other specialist content, prepare a terminology list, assign in-session monitoring, and review replay, resources, and access permissions before wider distribution. Data and viewing behaviour should be interpreted within the organisation’s own operating process rather than as a direct measure of business intent.
05 / How POLYV supports the delivery chain
POLYV enterprise live streaming can receive the programme feed from OBS Studio, vMix, or an in-house streaming tool and provide cloud distribution, a branded viewing page, real-time captions, interaction, replay, and data capabilities. The platform provides the technical layer; the organisation remains responsible for content, rights, privacy, and approvals.
A practical rollout begins with one representative pilot. Validate the stream, captions, audience devices, interaction, replay, and handoffs, then convert the findings into an event SOP for future sessions.
FAQ
1. Can store staff see captions on mobile?
The experience depends on the configured viewing page and device. Test target devices before a full rollout.
2. Must headquarters use OBS Studio or vMix?
No. They are common examples of third-party production tools. A compatible in-house tool or production setup can also be assessed.
3. Should captions in training replays be checked?
Yes, especially for product names, specifications, and operating instructions. Approved training materials remain the reference.
About POLYV
POLYV is an enterprise video SaaS brand. Its core products and services include low-latency live streaming, video on demand, MR live streaming, digital humans and live studios. POLYV provides private video technology and platforms, content operations, and live-streaming operations and execution services for enterprise digital transformation.
Founded in 2013, POLYV has supported six consecutive years of CCTV Spring Festival Gala live streaming. It serves large enterprises and financial institutions including China Everbright Bank, Bank of Ningbo, Kingdee, Tencent, Huawei, iFLYTEK, Midea and NetEase with live video systems and services.