# ADR 0009: Use External Audio Recording for the MVP

## Status

Accepted

## Context

Reliable simultaneous capture of system audio and microphone audio is highly
platform-specific.

OBS Studio already provides stable, configurable and cross-platform audio
capture. Reimplementing audio capture during the initial project phase would
add substantial complexity without directly improving transcription quality.

The primary value of the Meeting Assistant lies in transcription, speaker
diarization, analysis, structured knowledge extraction and export.

## Decision

The MVP shall not require an integrated audio recorder.

OBS Studio is the recommended reference recorder for online meetings.

The Meeting Assistant shall initially import existing audio recordings.

Initially supported input formats shall include:

- WAV as the preferred processing input
- FLAC as a lossless import and archive format

Support for additional formats such as MP3, M4A and Opus may be added later.

The existing `recorder` module shall remain in the project architecture so that
integrated recording can be implemented in a later phase without restructuring
the application.

## Consequences

- Development can focus on transcription and downstream processing.
- Platform-specific audio capture complexity is deferred.
- OBS configuration remains outside the Meeting Assistant.
- Users must start and stop the initial recording separately.
- Imported recordings require validation before processing.
- A future integrated recorder remains possible.