70% Vietnamese and 30% English - Code-Switching Conversation Recording Project
Budget: $10 – $11 USD
DCP Global's Multilingual Voice Recording Project – Code-Switching Conversations
Project Name: BV
Project Type: Remote | Ongoing (Limited Slots per Locale)
Project Overview
Project BV is a multilingual speech data collection initiative designed to enhance Automatic Speech Recognition (ASR) systems for high-value multilingual call center scenarios, including financial services, healthcare, and telecommunications.
The project focuses on collecting natural code-switching conversational audio, where speakers alternate between two languages within a single conversational turn. Scripts will be provided; however, natural delivery, fluency, and context-appropriate language switching are essential.
Language Requirements
Primary Language (Native level – one required):
Vietnamese (vi-VN)
Secondary Language (Required):
English – Fluent
Participants may be located anywhere globally, provided they are native in one of the primary languages and fluent in English.
The Project Manager will request language verification samples for both primary and secondary languages.
Participation Structure
Participation is one-time only per speaker.
Two speakers will form a pair (agent and customer roles).
Speakers do not need to be in the same location.
Scripts and recording instructions will be provided.
Zoom is the preferred method for recording the conversations.
Audacity is the preferred tool for converting audio files to the required sample rates and for verifying signal-to-noise ratio compliance.
Recording Scope
Target volume: 200 hours of audio per locale
Per pair output: 1.2 hours of recorded audio
Quality acceptance: Minimum 80% usable speech hours
Compensation (USD – Per Pair, 2 Speakers)
All rates below are paid in United States Dollars (USD) and apply to one hour of final audio (30 minutes per speaker).
Payment is split evenly between the two participants.
Vietnamese (vi-VN): USD 11.00 per participant
Recording Specifications
File Format: Stereo WAV
Left channel: Agent
Right channel: Customer
Sample Rates:
8kHz (telephone quality) – 50%
16kHz – 50%
Code-Switching Ratio:
70% primary language
30% English
±10% tolerance
Delivery Style:
Natural, context-pecific language switching
No forced or artificial transitions
Speaker Requirements
Age Distribution Targets:
18–25 years: 30%
25–40 years: 30%
40–65 years: 20%
65+ years: 20%
Gender Balance:
50% male / 50% female
Language Proficiency:
Fluent English is mandatory; non-fluent speakers will be rejected
Participation Limit:
Each speaker may participate once only
Audio Quality Standards
Minimum 25dB signal-to-noise ratio
No background noise, distortion, clipping, or echo
Quiet, controlled recording environment required
Headset or professional microphone strongly recommended
How to Apply
Applicants should be prepared to provide:
* Native language and English proficiency details
* Age range and gender
* Confirmation of one-time participation
* Language verification samples upon request
* Participants will be placed in a group chat with others of the same language to work out who will work with whom for the recordings.
The project will close once all required recordings are collected.
Apply and wait for the next steps if deemed by our team that you qualify.
Note: If you do not hear from us, consider that you do not qualify for this project
Project Name: BV
Project Type: Remote | Ongoing (Limited Slots per Locale)
Project Overview
Project BV is a multilingual speech data collection initiative designed to enhance Automatic Speech Recognition (ASR) systems for high-value multilingual call center scenarios, including financial services, healthcare, and telecommunications.
The project focuses on collecting natural code-switching conversational audio, where speakers alternate between two languages within a single conversational turn. Scripts will be provided; however, natural delivery, fluency, and context-appropriate language switching are essential.
Language Requirements
Primary Language (Native level – one required):
Vietnamese (vi-VN)
Secondary Language (Required):
English – Fluent
Participants may be located anywhere globally, provided they are native in one of the primary languages and fluent in English.
The Project Manager will request language verification samples for both primary and secondary languages.
Participation Structure
Participation is one-time only per speaker.
Two speakers will form a pair (agent and customer roles).
Speakers do not need to be in the same location.
Scripts and recording instructions will be provided.
Zoom is the preferred method for recording the conversations.
Audacity is the preferred tool for converting audio files to the required sample rates and for verifying signal-to-noise ratio compliance.
Recording Scope
Target volume: 200 hours of audio per locale
Per pair output: 1.2 hours of recorded audio
Quality acceptance: Minimum 80% usable speech hours
Compensation (USD – Per Pair, 2 Speakers)
All rates below are paid in United States Dollars (USD) and apply to one hour of final audio (30 minutes per speaker).
Payment is split evenly between the two participants.
Vietnamese (vi-VN): USD 11.00 per participant
Recording Specifications
File Format: Stereo WAV
Left channel: Agent
Right channel: Customer
Sample Rates:
8kHz (telephone quality) – 50%
16kHz – 50%
Code-Switching Ratio:
70% primary language
30% English
±10% tolerance
Delivery Style:
Natural, context-pecific language switching
No forced or artificial transitions
Speaker Requirements
Age Distribution Targets:
18–25 years: 30%
25–40 years: 30%
40–65 years: 20%
65+ years: 20%
Gender Balance:
50% male / 50% female
Language Proficiency:
Fluent English is mandatory; non-fluent speakers will be rejected
Participation Limit:
Each speaker may participate once only
Audio Quality Standards
Minimum 25dB signal-to-noise ratio
No background noise, distortion, clipping, or echo
Quiet, controlled recording environment required
Headset or professional microphone strongly recommended
How to Apply
Applicants should be prepared to provide:
* Native language and English proficiency details
* Age range and gender
* Confirmation of one-time participation
* Language verification samples upon request
* Participants will be placed in a group chat with others of the same language to work out who will work with whom for the recordings.
The project will close once all required recordings are collected.
Apply and wait for the next steps if deemed by our team that you qualify.
Note: If you do not hear from us, consider that you do not qualify for this project