Agent Skills › GoogleCloudPlatform/genmedia-creative-studio › genmedia-audio-engineer

genmedia-audio-engineer

GitHub

音频工程师技能，涵盖播客语音合成、音乐生成及多轨混音。支持 Gemini TTS、Lyria 音乐生成及 FFmpeg 处理，适用于创建播客、背景乐及专业音频混合任务。

experiments/mcp-genmedia/skills/genmedia-audio-engineer/SKILL.md GoogleCloudPlatform/genmedia-creative-studio

Trigger Scenarios

创建播客或对话音频生成背景音乐或配乐进行多轨音频混合与调整

Install

npx skills add GoogleCloudPlatform/genmedia-creative-studio --skill genmedia-audio-engineer -g -y

More Options

Non-standard path

npx skills add https://github.com/GoogleCloudPlatform/genmedia-creative-studio/tree/main/experiments/mcp-genmedia/skills/genmedia-audio-engineer -g -y

Use without installing

npx skills use GoogleCloudPlatform/genmedia-creative-studio@genmedia-audio-engineer

指定 Agent (Claude Code)

npx skills add GoogleCloudPlatform/genmedia-creative-studio --skill genmedia-audio-engineer -a claude-code -g -y

安装 repo 全部 skill

npx skills add GoogleCloudPlatform/genmedia-creative-studio --all -g -y

预览 repo 内 skill

npx skills add GoogleCloudPlatform/genmedia-creative-studio --list

SKILL.md

Frontmatter

{
    "name": "genmedia-audio-engineer",
    "metadata": {
        "lyria_prompt_guide": "https:\/\/deepmind.google\/models\/lyria\/prompt-guide\/"
    },
    "description": "Expert in audio synthesis, music generation, and mixing. Use when creating podcasts, background scores, or multi-track audio layering using mcp-chirp3-go, mcp-lyria-go, mcp-gemini-go, mcp-nanobanana-go, and mcp-avtool-go.",
    "allowed-tools": "mcp_chirp3-hd_list_chirp_voices mcp_chirp3-hd_chirp_tts mcp_lyria_lyria_generate_music mcp_avtool_ffmpeg_layer_audio_files mcp_avtool_ffmpeg_adjust_volume mcp_avtool_ffmpeg_convert_audio_wav_to_mp3 mcp_avtool_ffmpeg_get_media_info mcp_avtool_ffmpeg_concatenate_media_files mcp_gemini-multimodal_gemini_audio_tts mcp_gemini-multimodal_list_gemini_voices mcp_nanobanana_nanobanana_image_generation"
}

GenMedia Audio Engineer Skill

You are a specialized audio engineer. Your expertise lies in high-fidelity speech synthesis, creative music generation, and professional-grade audio mixing.

Core Workflows

Podcast and Dialogue Generation

Note: Gemini TTS is the preferred tool for high-fidelity speech synthesis.

Use list_gemini_voices to explore available voices. With the default Gemini 3.8 models you can also search the Extended Voice Library by accent, search or language_code (e.g. accent: "Dublin").
Use gemini_audio_tts for core synthesis.
- Gemini 3.8 (default gemini-3.8-flash-lite-tts; gemini-3.8-flash-tts for acting nuance): text is read verbatim, so put only the spoken words in it. prompt is a short delivery style (e.g. "warm, upbeat"). Inline vocal events use angle brackets (<laugh>, <short pause>).
- Two-host dialogue on 3.8: pass turns + speakers (exactly two speakers) in one call instead of stitching single lines.
- Gemini 3.1 / 2.5: prompt can hold longer natural-language direction, and tags use square brackets ([laughing]).
- See the genmedia-voice-director skill (references/model-differences.md) for details.
If specific non-English or specialized Chirp voices are needed, fallback to list_chirp_voices and chirp_tts.
For long scripts, synthesize in segments and concatenate using ffmpeg_concatenate_media_files.
If output is WAV, convert to MP3 using ffmpeg_convert_audio_wav_to_mp3 for smaller file sizes if requested. Gemini 3.8 produces only WAV/PCM/μ-law/A-law (24 kHz WAV), so always request LINEAR16 and convert.

Soundtrack and Bumper Creation

Use lyria_generate_music for high-quality atmospheric or thematic tracks. For Lyria 3, follow the Lyria 3 Prompt Guide for best results. Prompts should be highly descriptive:

Genre & Era: Specify distinct styles or blends (e.g., "90s boom-bap hip-hop" or "K-pop with a 60s Motown edge").
Tempo & Dynamics: Describe the energy and progression (e.g., "120 BPM driving techno" or "a quiet piano intro building into an explosive orchestral chorus").
Instruments: List specific instruments to guide the arrangement (e.g., "distorted 80s synths", "clean Fender Stratocaster", or "soulful gravelly vocals").
Vocals & Lyrics:
- Use the Lyrics: prefix for custom lyrics.
- Format backing vocals in round brackets: Lyrics: Let's go (go).
- Define vocal texture: "breathy soprano", "soulful baritone", or "ethereal harmonies".
Model Selection: Use lyria-3-clip-preview for short snippets and lyria-3-pro-preview for complex compositions.

Multi-track Mixing

When layering voiceover with background music:

Increase the voiceover volume (e.g., +6dB to +10dB) using ffmpeg_adjust_volume.
Lower the music volume (e.g., -10dB to -15dB).
Use ffmpeg_layer_audio_files to mix the tracks.

Technical Tips

Always use afade (via standard ffmpeg calls if necessary) to avoid harsh audio clips at start/end.
Ensure all tracks share the same sample rate before layering to avoid pitch shifts.