With duration

bash scripts/play.sh white -d 30 # 30 seconds bash scripts/play.sh pink -d 60 # 1 minute

With volume control (0.1 - 2.0)

bash scripts/play.sh white -v 0.5 # 50% volume

Stop playing

bash scripts/play.sh stop

List all available modes

bash scripts/play.sh --list


## Available Audio Types

### 🎯 Focus (Concentration)
| Mode | Best For | Description |
|------|----------|-------------|
| `white` | Deep work, coding | Classic white noise - eliminates ambient distractions |
| `alpha` | Light focus | Alpha waves (8-14Hz) - relaxed alertness |
| `beta` | Active thinking | Beta waves (14-30Hz) - mental clarity |
| `gamma` | Peak focus | Gamma waves (30Hz+) - cognitive enhancement |

### 😌 Relax (Stress Relief)
| Mode | Best For | Description |
|------|----------|-------------|
| `pink` | Gentle background | Softer than white, easier on ears |
| `rain` | Reading, working | Simulated rain ambience |
| `nature` | Breaks | Filtered natural-style ambience |

### 😴 Sleep (Rest)
| Mode | Best For | Description |
|------|----------|-------------|
| `brown` | Deep sleep | Deep, rumbling noise - best for sleeping |
| `delta` | Sleep onset | Delta waves (0.5-4Hz) - helps fall asleep |

### 🧘 Meditation
| Mode | Best For | Description |
|------|----------|-------------|
| `theta` | Meditation | Theta waves (4-8Hz) - deep relaxation |
| `binaural` | Focus/relax | 10Hz binaural beats - brain wave entrainment |
| `bowl` | Calming | Singing bowl - instant calm |

## Usage Examples

### Voice Commands (via AI Assistant)

- "Play white noise" → Starts white noise
- "I need to focus for coding" → Plays white/alpha
- "Can't sleep, play something" → Plays brown noise
- "Let me meditate" → Plays theta waves
- "Stop" → Stops playback

### Custom Duration

```bash
# 5 minutes (300 seconds)
bash scripts/play.sh white -d 300

# 1 hour
bash scripts/play.sh brown -d 3600

Volume Control

# Half volume
bash scripts/play.sh white -v 0.5

# Quiet (25%)
bash scripts/play.sh pink -v 0.25

# Louder
bash scripts/play.sh brown -v 1.5

How It Works

Pre-generated Audio: All sounds are 10-second loops stored in samples/ directory
Instant Playback: ffplay loops the file seamlessly
Duration Control: Calculates loop count: duration / 10
Volume Control: Uses ffplay's -af volume= filter

File Structure

focus-audio/
├── SKILL.md              # This file
├── scripts/
│   └── play.sh          # Main player script
└── samples/             # Pre-generated audio files (10s loops)
    ├── white_10s.mp3    # White noise - focus/work
    ├── pink_10s.mp3     # Pink noise - relaxed focus
    ├── brown_10s.mp3    # Brown noise - deep sleep
    ├── theta_10s.mp3    # Theta waves - meditation
    ├── rain_10s.mp3     # Rain sound - relaxation
    ├── alpha_10s.mp3    # Alpha waves - light focus
    ├── beta_10s.mp3    # Beta waves - active thinking
    ├── gamma_10s.mp3    # Gamma waves - peak focus
    ├── bowl_10s.mp3    # Singing bowl - calming/meditation
    └── binaural_10s.mp3 # Binaural beats - brain wave entrainment

Requirements

ffmpeg: For audio playback
```
sudo apt-get install ffmpeg
```
Audio output: Speakers or headphones connected to the server

Troubleshooting

No sound plays

Check if audio device is connected: aplay -l
Check if ffplay is installed: which ffplay
Verify audio file exists: ls samples/

Audio too loud/quiet

Adjust volume: bash scripts/play.sh white -v 0.3

Want to add more sounds

Generate new 10-second loop:

ffmpeg -y -f lavfi -i "anoisesrc=d=10:c=pink:a=0.35" -c:a libmp3lame -b:a 64k -t 10 newname_10s.mp3

Place in samples/ directory

Technical Notes

Audio Format: MP3, 48kHz, mono, 64kbps
Loop Duration: 10 seconds (seamless loop)
Volume Range: 0.1 - 2.0 (default 1.0)
Max Duration: No hard limit (limited by system resources)

Security

Input validation on volume and duration parameters
File paths are hardcoded (no user input for paths)
No external network calls
No sensitive data access

Focus Audio - Improve concentration, reduce stress, sleep better.

ambient-audio

Ambient Audio - Ambient Sound Player

Quick Start