🎛️ Audio Formats Reference

Gemini Audio MCP supports a wide variety of formats by leveraging FFmpeg's codec library. Below is a guide on when to use each.

📊 Comparison Table

Format	Extension	Recommended Use Case	Quality
MP3	.mp3	General use, web compatibility	High (Compressed)
OGG	.ogg	Game development (Godot/UE5)	Excellent
FLAC	.flac	Archiving, high-fidelity production	Lossless
OPUS	.opus	Low-latency streaming, VoIP	Best Compression
WAV	.wav	Raw editing, zero compression	Uncompressed
AAC	.m4a	Apple ecosystem, mobile apps	High

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⚙️ Quality Settings

You can override defaults using the audio_options in tool calls:

1. Bitrate

Higher bitrates result in better quality but larger files.

• 128k: Standard quality (good for voice).
• 192k: High quality (recommended for soundscapes).
• 320k: Premium quality (recommended for music).

2. Sample Rate

The default is 24,000 Hz (native to Gemini 2.0).

• If you request 44100 or 48000, the server will use high-quality resampling filters via FFmpeg to up-mix the audio.

3. Channels

• Mono (1): Native Gemini output.
• Stereo (2): The server will duplicate the signal or apply a slight "pseudo-stereo" width if supported by the chosen codec.