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Detecta Language Agency is currently recruiting native Spanish (Spain) speakers for a large-scale speech data collection project. The objective of this project is to collect and standardize 500 hours of natural full-duplex Spanish conversations to support artificial intelligence and speech recognition technologies.

Participants will engage in natural two-person conversations and record audio in a quiet indoor environment using approved recording tools. Conversations should be spontaneous and natural rather than scripted or read.

Project Requirements
• Language: Native Spanish (Spain)
• Location: Spain
• Age Range: 18–60 years
• Participants Required: 750+ speakers
• Gender Ratio: Male/Female approximately 1:1 (±5%)
• Recording Type: Two-person natural dialogue
• Recording Environment: Quiet indoor location without echo
• Conversation Duration: 5–30 minutes per segment
• Maximum Recording Duration per group: Up to 2 hours

Recording Specifications
Audio recordings must meet the following technical standards:

• Sound card recording: 48kHz, 32-bit, mono
• Mobile recording: 24kHz, 16-bit, mono

Each conversation recording produces three audio files:

• Speaker A audio track
• Speaker B audio track
• Stereo reference file for alignment

Both speaker tracks must be perfectly synchronized and represent a natural conversation.

Conversation Guidelines
• Conversations must be natural and spontaneous
• Speakers choose topics from a provided topic list
• Script reading is not allowed
• Natural interruptions and overlaps are acceptable
• Sensitive topics such as politics, violence, or explicit content should be avoided.

Eligibility
Both experienced professionals and fresh native Spanish speakers from Spain are eligible to apply for this project.

Responsibilities
• Participate in natural conversation recordings
• Follow project recording guidelines
• Ensure high-quality audio recordings
• Provide voice authorization for dataset usage