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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): European Spanish (es-ES) Secondary Language (Required): English Participants may be located anywhere globally, provided they are native in European Spanish (es-ES) 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. European Spanish (es-ES) USD 40 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 is mandatory; non-fluent speakers will be rejected European Spanish (es-ES) is mandatory 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 European Spanish (es-ES) 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 ID: 40326271
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Remote project
Active 4 days ago
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7 freelancers are bidding on average $40 USD for this job

I am a native European Spanish (es-ES) speaker from Spain with a C2 level of English, and I am interested in participating in Project BV. I can provide natural, fluent code-switching conversations between Spanish and English, maintaining the required balance and delivering context-appropriate transitions. I also have experience working with audio content and can ensure recordings meet quality standards, including clean audio, proper recording environment, and correct technical specifications. I am comfortable using tools such as Zoom and Audacity, and I understand the importance of meeting requirements like sample rates and signal-to-noise ratio. Additionally, I can participate with a qualified partner if needed, ensuring smooth interaction and natural dialogue flow throughout the recordings. I am available for language verification samples and ready to follow all project guidelines.
$40 USD in 7 days
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hello. i can help you recruiting native speakers to do the recordings for you. hope we can have good cooperation.
$40 USD in 7 days
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Hello, I’ve carefully read your project requirements for multilingual code-switching recordings, and I understand the importance of natural delivery, clean audio quality, and accurate language balance. I work with a small team that includes native European Spanish speakers and fluent English speakers, allowing us to deliver natural, context-appropriate conversations that meet your 70/30 language requirement. We are experienced with Zoom-based recordings and audio processing using Audacity, ensuring all files meet your specifications (sample rates, stereo channels, and noise standards). We can quickly organize speaker pairs, follow scripts accurately, and deliver high-quality recordings within your required format. We’re ready to begin immediately and ensure smooth coordination throughout the project. Looking forward to working with you. Best regards, Timothy
$40 USD in 3 days
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Hello there, I am excited to propose my expertise for the Multilingual Voice Recording Project – Code-Switching Conversations Project BV. This remote and ongoing initiative aims to collect natural code-switching conversational audio in European Spanish (es-ES) and English, enhancing ASR systems for various industries. With a focus on authentic language delivery and context-appropriate switching, I am confident in my ability to contribute effectively to this innovative project.
$40 USD in 7 days
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Hi, My name is Sary Kusumawati, and I’d love to support your multilingual voice recording project. I understand you’re looking for natural, fluent code-switching conversations between Spanish (es-ES) and English. I’m confident in delivering clear, context-appropriate recordings that sound natural and engaging, while following the provided scripts accurately. I pay close attention to pronunciation, fluency, and consistency to ensure high-quality audio suitable for ASR training. I’m also comfortable following detailed instructions and meeting deadlines for ongoing projects. I’m ready to start immediately and can commit to delivering consistent, reliable recordings. Looking forward to contributing to your project Best regards, Sary Kusumawati
$40 USD in 3 days
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Hello, I’m very interested in participating in Project BV. I am a native European Spanish (es-ES) speaker with strong fluency in English, and I can naturally switch between both languages in conversation. I have a clear speaking voice, good pronunciation, and I can follow scripts while maintaining a natural and context-appropriate delivery. I also have access to a quiet recording environment and the necessary equipment to meet audio quality standards, including using tools like Zoom and Audacity. I am reliable, detail-oriented, and able to complete the full recording requirements as specified. I’m ready to provide language verification samples and start as soon as needed. Thank you for considering my application.
$40 USD in 7 days
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Hello! I am highly interested in participating in Project BV for the European Spanish (es-ES) locale. I fully understand the requirements for natural code-switching conversational recording (70% European Spanish / 30% English) and the technical specifications required for ASR training. Here are my details for the application: - Primary Language: European Spanish (es-ES) - Native level - Secondary Language: English - Fluent - Technical Setup: High-quality microphone, quiet/controlled recording environment, and experience with Zoom and Audacity (ensuring stereo WAV format, channel separation, and 8kHz/16kHz sample rate compliance). - Target Metrics: I confirm this is a one-time participation. I am ready to join the language group chat to pair up with an agent/customer partner and deliver the 1.2 hours of high-quality audio matching the 25dB signal-to-noise ratio. I am ready to submit my language verification samples for both European Spanish and English as soon as requested. Looking forward to working on this project!
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Cessnock, Australia
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