SeaChime Chart is a mobile web app built for logging and exploring coastal soundscapes, and SeaChime Chart lets skippers, researchers and coastal enthusiasts capture ambient sea sounds, attach geotags and timestamps, and view how audio entries correlate with tide conditions. The app puts tide-aware audio journaling, map-based visualization and a compact dashboard into a single, mobile-friendly interface so you can document outings, compare locations and revisit recordings with context.

Key features and what they do

The dashboard provides a concise overview of recent logs, simple statistics and quick actions so you can see total recordings, recent locations and tidal trends at a glance. The sound journal is a structured entry workflow: create a titled entry, set or confirm the timestamp and location, add short audio clips and include written notes. Tide views display predicted and observed tidal stages for the time and place of each entry so you can inspect correlations between tides and acoustic changes. Sound maps plot geotagged entries on an interactive map with zoom and pan controls, letting you explore spatial patterns along a route or across a coastline. Built-in recording and playback let you capture ambient audio directly from the browser, monitor clip length, and reread notes while listening back to a clip.

How the app works and controls

Recording is initiated with a single tap on a clear on-screen control that shows elapsed time; you can pause or stop and then name the entry. Location is captured automatically when permitted, and you can adjust the pinned spot manually on the map if needed. Notes are edited in-line and saved with each entry so text context stays linked to the audio clip and timestamp. Map interactions are handled with familiar gestures: pinch to zoom, drag to pan and tap markers to open the associated journal entry. Tide controls let you switch between absolute time and local tide windows to see how sound signatures vary across a tide cycle.

Progression, organization and replay value

Progression in SeaChime Chart comes from building a searchable archive of outings and using the dashboard insights to track patterns over time. As your sound journal grows you can filter entries by date range, tide stage or custom tags, compare recordings from similar tidal conditions and identify locations that consistently produce interesting acoustic signatures. Replay value stems from revisiting past voyages on the map, listening to sequences of recordings to detect seasonal shifts, and using the timeline to compare morning versus evening soundscapes on the same stretch of coast.

Visual style and structure

The visual style favors clarity and contrast for use outdoors: large touch targets, readable fonts and a map-first layout where entries are visualized as markers or clustered pins at different zoom levels. The app organizes content by journal entries and map sessions rather than complex folders—each outing becomes a chronological record you can expand to reveal individual clips, notes and tide annotations. Map layers and timeline views offer alternative level structures so you can focus on location, period or tidal context without losing the recording metadata.

Customization and filters

SeaChime Chart offers simple customization for organizing your archive: add descriptive titles, short tags and notes to entries, sort by date or proximity, and apply filters to display only entries from a specific tide stage or location band. Color-coded markers and optional map layers help distinguish between recent logs and archived sessions, while entry metadata (duration, tide, notes) is always visible when you open a record. These lightweight customization options make it faster to triage recordings in the field and to prepare sets of clips for later analysis.

Accessibility, offline considerations and user experience

The interface is designed for use in bright outdoor conditions with high-contrast controls and simple gestures. Touch targets are sized for gloved hands, and key labels remain visible while recording and playback are active. SeaChime Chart is built as a progressive mobile web app so it aims to keep local recordings accessible on the device when network connectivity is limited; recorded entries remain usable on the device and sync with your account or backup when a connection is reestablished. The experience emphasizes minimal friction: quick-start recording, easy map corrections, and consistent metadata capture reduce distraction while you are on deck.

Limitations and intended audience

SeaChime Chart focuses on logging and correlating coastal soundscapes rather than advanced audio editing or studio production. It is tailored to sailors, field recordists and coastal researchers who need reliable, contextualized logs and spatial visualization rather than detailed spectral analysis or multi-track mixing. If your primary need is professional audio post-production, you may prefer a dedicated editor; if you want a compact, tide-aware audio journal and map explorer, SeaChime Chart provides a purpose-built workflow.