Harassment Amulet
Harassment Amulet
Harassment Amulet is an Android-only background and foreground audio recording application designed to provide users with a reliable and automated recording experience. With its unique timely notification feature, users are informed when the audio recorder activates automatically at a set time, ensuring awareness and control over recordings. The app also stops recording automatically at predefined durations, making it a convenient tool for capturing important audio without manual intervention.
App Features
1. Record audio & Playback:
- Users can record audio both in the background and foreground.
- Automatic recording activation at scheduled times, ensuring hands-free operation.
- Timely notifications inform users when the recording starts or stops.
2. Auto-Stop Functionality:
- The app supports scheduled recording sessions that stop automatically after a set duration.
- Users can configure recording durations based on their needs.
3. Subscription Plans & Recording Durations:
Harassment Amulet offers five recording plans based on duration:
- Basic Plan (Free): Allows a maximum of 15 minutes of recording.
- 1-Hour Plan: Costs 130 yen and allows 1-hour recording.
- 2-Hour Plan: Costs 260 yen and allows 2-hour recording.
- 3-Hour Plan: Costs 380 yen and allows 3-hour recording.
- 5-Hour Plan: Costs 520 yen and allows 5-hour recording.
4. Offline Functionality & Storage:
- The app operates completely offline, ensuring user privacy and security.
- All recordings are stored directly on the device, eliminating the need for cloud storage.
Development Process
1. Requirement Analysis:
- Focused on providing a seamless, hands-free audio recording experience with automatic activation and timely notifications.
- Designed an offline storage system for enhanced security and accessibility.
2. Design & Prototyping:
- Developed an intuitive user interface that simplifies recording management.
- Used Figma for prototyping and visualizing the app’s workflow.
3. Development:
- Built exclusively for Android using Java/Kotlin for optimal performance.
- Implemented timed notifications and automatic recording triggers.
4. Testing & Quality Assurance:
- Conducted extensive testing to ensure accurate recording schedules and notification alerts.
- Focused on optimizing battery and storage usage for long-duration recordings.
Challenges
1. Memory Allocation Issues:
- Managing large audio files efficiently without overloading device storage was a key challenge.
- Implemented an optimized file storage system to prevent excessive memory usage and ensure smooth performance.
2. Video Playback Optimization:
- Ensuring seamless playback of recorded audio files required optimizing the built-in media player.
- Encountered issues with file compatibility and buffering, which were resolved through efficient audio decoding and caching techniques.
3. Trim Record Feature Implementation:
- Developing an intuitive trim recording feature to allow users to cut unwanted parts of an audio file was complex.
- Implemented an efficient audio processing algorithm to trim recordings without losing quality or causing delays.
Technology Stack
1. Programming Languages:
- Android: Java/Kotlin for native Android development.
2. Notification & Scheduling System:
- Implemented a reliable background scheduling mechanism to ensure precise recording activation.
- Developed a timely notification system to alert users when recordings start and stop.
3. Storage Management:
- Local storage handling optimized for efficient audio file management.
4. UI/UX Design Tools:
- Figma was used for wireframing and prototyping the user interface.
