01 · EVALUATE
Representative speech samples
Review Nigerian-accented English audio and matching transcript materials before progressing to a commercial discussion.
Available to evaluate · Nigerian-accented English
NDPC REGISTERED · NDPC/DCP/13596
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Nigerian English speech data for AI training.
Evaluate representative Nigerian-accented English speech samples, or commission a scope built around your model, speakers, scenarios and delivery requirements. BSG DataWorks provides human-sourced collection, native-speaker review, consent documentation and commercial licensing support.
Availability
Start with representative Nigerian English speech, then scope what your model needs next.
BSG DataWorks has Nigerian-accented English speech available for technical evaluation. For production requirements, we will discuss the relevant usage rights, the current licensable scope and whether a commissioned collection or annotation extension is appropriate.
02 · SPECIFY
Model-relevant scope
Describe the intended model use, speaker profile, scenario, volume, format, transcript requirements and timeline so the data plan fits the task.
03 · LICENSE
Documented commercial use
Discuss the required licence, consent documentation, delivery materials and permitted commercial use as part of the project scope.
AI use cases
Build for the Nigerian English your users actually speak.
Nigerian-accented English is not a generic-English proxy. The right data brief should reflect your target interaction, vocabulary, speakers, recording environments and evaluation criteria.
ASR and speech-to-text
Plan speech and transcript requirements for transcription systems that must perform on Nigerian English accents, vocabulary and real task contexts.
Voice assistants and conversational AI
Define prompts, dialogue style, domains and speaker mix for customer-service, information and voice-interface experiences.
TTS and voice experiences
Discuss the appropriate voice, recording and rights requirements for speech synthesis or branded voice work, subject to the agreed contributor-consent scope.
Model evaluation
Use a carefully scoped Nigerian English sample or commissioned dataset to test accuracy, transcription quality or response behaviour against relevant speech input.
Technical and quality requirements
Agree the deliverables before collection starts.
Each production scope is documented around technical format, transcript treatment, metadata, quality checks and delivery method. The exact package is agreed in the project statement of work or licence.
Typical audio and transcript options
- WAV audio, 16 kHz mono 16-bit PCM; 48 kHz studio option where agreed
- Verbatim and time-aligned transcript options
- JSON, TXT or CSV delivery formats to brief
- Metadata fields agreed around the required speaker and recording profile
Quality and documentation
- Native-speaker review of 100% of Nigerian English transcriptions
- Inter-annotator agreement of ≥ 80% (word-level or Cohen’s κ per project), measured on a 10% blind sample per batch and reported in the batch QC report
- Free re-delivery on any batch failing agreed QA thresholds (up to two re-deliveries per batch)
- Audio screening for signal quality, clipping and duplication where relevant to the agreed delivery
- Data-card, licence and consent documentation materials for the delivery
From evaluation to delivery
A clear route from first sample to production scope.
Start with enough information for BSG DataWorks to assess fit, then agree the commercial and operational requirements before the work begins.
Review
Evaluate representative material and identify whether an existing licence, custom extension or new collection discussion is appropriate.
Brief
Share model use, target speakers, speech scenario, technical format, required volume, timeline and governance needs.
Agree
Confirm delivery criteria, rights, documentation and the commercial route in the applicable proposal, statement of work or licence.
Deliver
Receive the agreed audio, transcripts, metadata and documentation through client-specified secure transfer or an agreed approved destination.
Frequently asked questions
Questions before evaluating Nigerian English speech data.
Is Nigerian English speech data available to evaluate now?
BSG DataWorks has representative Nigerian-accented English speech samples available for technical evaluation. Contact us with your intended use so we can discuss the relevant materials and the appropriate commercial path.
Can we commission a Nigerian English collection to our specification?
Yes. A commissioned discussion can cover the speech scenario, speaker profile, recording environment, target volume, transcript and metadata requirements, delivery timeline, rights and quality criteria.
Can transcripts and time alignment be included?
Yes. State the transcript format, annotation and time-alignment requirements in your initial brief. These are scoped against the intended model use and delivery format.
How do commercial rights and consent documentation work?
Commercial use, permitted sublicensing and the documentation package are addressed in the applicable licence or project agreement. BSG DataWorks collects and maintains contributor-consent records consistent with the agreed scope.
Start a Nigerian English brief
Tell us what your model needs.
Share a few project details and we will reply within 48 hours with initial scoping questions, a likely timeline and the next step.
What helps us get started
- Intended model use and Nigerian English speech scenario
- Target speaker, market or participant profile
- Target volume, audio format and transcript requirements
- Desired delivery timeline
- Rights, governance or compliance requirements
- Approximate pilot budget or licensing range, if known
If you do not have all of this yet, send what you have — including if you are still scoping the budget. We will fill in the rest on a call.
Prefer to write directly? dataservices@bsgdataworks.com
WhatsApp only: +234 806 790 4903