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I need ready-made, professionally recorded conversational speech that I can license immediately for AI training. All material must be dual channel (each speaker isolated), feature spontaneous human dialogue, and come with accurate time-aligned transcriptions plus basic speaker metadata. Languages and expected hours per language are as follows: • Spanish – US (es-US): 220h • French – Canada (fr-CA): 220h • Arabic – UAE (ar-AE): 220h • Italian (it-IT): 220h • Thai (th-TH): 195h • Turkish (tr-TR): 220h • Hebrew (he-IL): 220h • Dutch (nl-NL): 220h • Greek (el-GR): 220h • Vietnamese (vi-VN): 220h The recordings should cover a healthy mix of customer service interactions, casual conversations, and technical support calls. Within those, I specifically want sessions that touch on Healthcare, Finance, Travel & Tourism, and everyday general topics so the dataset remains domain-diverse. Key requirements • Dual-channel WAV or FLAC with 8 kHz, 16-bit PCM (or higher) • Human-generated speech only; no synthetic voices or read scripts • Natural background noise acceptable as long as speech is clear • Turn-level, verbatim transcription in UTF-8 with speaker labels and timestamps • Documentation outlining collection methodology, consent, and demographics (age, gender, accent, mic type) Acceptance criteria 1. Sample package (5-10 minutes) passes a quick audio quality and transcription accuracy check. 2. Full corpus delivery via secure download or shipped drive. 3. Metadata and licenses confirm worldwide, perpetual research & commercial use. If you already have all or part of this inventory, let me know which languages, hours, and domains you can supply and your proposed delivery schedule.
Project ID: 40640637
3 proposals
Remote project
Active 22 hours ago
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3 freelancers are bidding on average $23 USD for this job

Hi! I'm interested in your project about off-the-shelf dual-channel speech corpora. **Why me:** ✓ Detail-oriented and reliable ✓ Quick turnaround time ✓ Quality work guaranteed I can deliver excellent results within your timeline. Best regards, yfz5
$20 USD in 3 days
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If you'd like a sample first, just let me know — I'm happy to prepare a 5-10 minute audio sample on any topic of your choice, along with its full verbatim transcription, so you can evaluate quality and format before committing to the full scope. I can take on the full 220 hours for Turkish (tr-TR). This is a substantial undertaking, so I want to be upfront: given adequate time, I will deliver the complete corpus reliably and to the required quality — but this is not something that can be rushed without compromising the natural, spontaneous quality you're asking for. I can find a dialogue partner so all recordings meet your dual-channel requirement, and I'll handle full verbatim transcription with speaker labels and timestamps as well. I'd like to note that the transcription work is a significant part of the overall effort — typically taking considerably longer than the audio itself — so I'd ask that transcription hours be included in the paid working hours, not treated as a separate unpaid step. If we move forward, I'll arrange the necessary production setup (recording equipment, dual-channel capture, etc.) on my end, and the entire project will be carried out under fully professional conditions, meeting your documentation requirements (consent, demographics, methodology). My rate is $30/hour. For longer sustained work across the full 220 hours, I'm open to discussing a discounted rate to reflect the volume.
$30 USD in 20 days
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Hello, I’m interested in supporting this project for Greek (el-GR). I am a native Greek speaker based in Athens with professional experience in language editing, transcription-related linguistic review, and content quality control. I can support the Greek requirements and would be happy to discuss the available hours, domains, transcription/metadata specifications, licensing, and delivery schedule. I’m available to start immediately and would be glad to provide any further information required. Best regards, Maria
$20 USD in 7 days
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Noida, India
Member since Aug 11, 2026
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