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Gemini Audio Transcription and Analysis Pipeline

Transcribe and analyze meetings, podcasts, and interviews with Gemini multimodal AI, including diarization, topic indexing, and integrations.

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Your Prompt
prompt.txt
You are a Gemini multimodal AI specialist focused on audio processing. Help me build an audio analysis pipeline for business meeting recordings content using Gemini 2.0 Flash.

Step 1: Set up the audio ingestion pipeline. Accept audio files in MP3, WAV, M4A, FLAC formats with a maximum duration of 2 hours. If the file exceeds the Gemini input limit, split it into 10 minutes chunks with 30 seconds overlap to preserve context across boundaries. Upload each chunk to Google Cloud Storage and generate a signed URL for the Gemini API. Track processing status for each chunk in Redis.

Step 2: Implement transcription with speaker diarization. Send each audio chunk to Gemini with the prompt: "Transcribe this audio with speaker identification. Label each speaker consistently (Speaker 1, Speaker 2, etc.). Include timestamps at the start of each speaker turn. Note any non-speech audio events (laughter, applause, background noise) in square brackets." Process 10 minutes chunks sequentially and merge transcripts while reconciling speaker labels across chunk boundaries.

Step 3: Build the content analysis layer. After transcription, send the full transcript to Gemini for analysis. Extract: a 200-word executive summary, 10 key discussion points with timestamps, action items assigned to specific speakers, questions raised (answered and unanswered), decisions made, and sentiment analysis per speaker. Structure the output as JSON matching the MeetingAnalysis v1 schema.

Step 4: Implement topic segmentation and indexing. Ask Gemini to identify distinct topics discussed in the audio and their time boundaries. For each topic segment, generate: a descriptive title, a one-paragraph summary, relevant keywords for search indexing, and the start/end timestamps. Store the topic index in Elasticsearch to enable semantic search across all processed audio files. A user should be able to search for a topic and jump to the exact point in the audio.

Step 5: Create specialized analysis prompts for the business meeting recordings domain. For meeting recordings: extract agenda adherence, participation balance per speaker, and follow-up items. For podcast interviews: extract quotes, fact-check claims against the transcript context, and identify key narrative arcs. Design 5 reusable prompt templates that can be selected based on the audio content type.

Step 6: Build the output and integration pipeline. Generate a structured report combining transcription, analysis, and topic index. Export in PDF, Markdown, Google Docs. Integrate with Notion + Google Calendar to automatically create tasks from action items and calendar events from scheduled follow-ups. Set up a webhook that triggers the pipeline when new audio is uploaded to Google Cloud Storage, enabling fully automated processing.

What this prompt does

This prompt frames the model as a Gemini multimodal specialist that designs an audio-analysis pipeline for [audio_type] content on Gemini [model_version]. It covers six stages: ingestion and chunking, transcription with speaker diarization, a content-analysis layer, topic segmentation and indexing, domain-specific analysis templates, and an output-and-integration step.

The chunking logic is the part that makes long audio workable. Files up to [max_duration] get split into [chunk_duration] segments with [overlap_duration] overlap so context survives the boundaries, and transcripts are merged while reconciling speaker labels. The analysis layer is shaped by [summary_length], [key_point_count], and the [output_schema] JSON schema, which is what makes downstream automation into [integration_target] reliable instead of brittle.

The design separates transcription from interpretation, which is why it scales. Diarization and timestamps come first so the raw record is searchable, then a second pass extracts summary, decisions, action items, and per-speaker sentiment against a fixed schema. Topic segmentation adds time-bounded sections written to [search_engine], turning a flat recording into something a user can search and jump into. The [secondary_audio_type] variable lets you build a second family of extraction templates, since a meeting and a podcast need different questions asked of them.

When to use it

  • You want meetings, interviews, or [secondary_audio_type] turned into searchable, structured data.
  • Recordings exceed Gemini's single-pass limit and need chunked processing.
  • You need speaker diarization, not just a flat transcript.
  • You want a topic index in [search_engine] so users can jump to the exact moment.
  • You need action items pushed automatically into [integration_target].
  • You want a webhook that triggers processing whenever new audio lands in [storage].

Example output

Expect a six-part build plan: an ingestion routine that splits audio into [chunk_duration] chunks tracked in [job_store], a diarized transcription prompt, a content-analysis step emitting JSON against [output_schema] (executive summary, [key_point_count] key points, action items, decisions, sentiment), a topic-segmentation routine writing to [search_engine], [template_count] reusable domain templates, and an export step producing [export_formats] plus webhook automation.

Pro tips

  • Match [chunk_duration] and [overlap_duration] to your audio; too little overlap drops context at boundaries, too much wastes tokens.
  • Define [output_schema] precisely up front, since the whole integration into [integration_target] depends on stable JSON.
  • Set [summary_length] and [key_point_count] to what your report actually needs rather than padding them.
  • Use [secondary_audio_type] to build a second template family; meetings and podcasts need different extraction logic.
  • Confirm [max_duration] and supported [audio_formats] against your real files before wiring the pipeline.
  • Keep [job_store] status tracking honest so failed chunks get retried instead of silently dropped.
  • Build the export step around [export_formats] your team actually consumes, since a PDF report and a Markdown feed serve different downstream uses.
  • Validate diarization on a sample before trusting it network-wide; overlapping speech is where speaker labels tend to slip.

Frequently Asked Questions

Can Gemini reliably tell speakers apart in the transcript?
The prompt asks for consistent speaker labels and timestamps per turn, and reconciles labels across chunk boundaries. Diarization quality still depends on audio clarity and overlapping speech, so review the labels on noisy recordings rather than trusting them blindly.
How does it handle audio longer than Gemini's input limit?
It splits files up to `[max_duration]` into `[chunk_duration]` segments with `[overlap_duration]` overlap, processes them sequentially, and merges the transcripts. The overlap preserves context so sentences are not cut off at chunk boundaries.
What makes the output usable by other tools?
The analysis layer emits JSON matching the `[output_schema]` schema, which gives downstream systems a predictable shape to parse. That is what lets action items flow into `[integration_target]` and topics into `[search_engine]` without manual cleanup.
Does it support automatic processing of new recordings?
Yes. The final step sets up a webhook that fires when new audio is uploaded to `[storage]`, so the full chunk, transcribe, analyze, and export flow runs without anyone kicking it off manually.
Engr Mejba Ahmed

Need this built for real?

Engr Mejba Ahmed

AI Developer · Software Engineer

I'm Mejba — I design and ship production AI systems, automations, and full-stack apps. If you want this turned into a working solution for your team, let's talk.

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