SoundLatch: Keep Speaker Awake
Keep compatible speakers, soundbars, earbuds, USB audio devices, car systems, and Android TV audio outputs ready through quiet periods with a user-started low-level audio stream, guided compatibility testing, and saved profiles.
Quick Facts
- Platform
- Android + Android TV
- Purchase model
- Free + one-time Pro
Screenshots
Key Features
- Choose Digital Silence, Near-Silent, Periodic Pulse, or Compatibility Mode for different hardware behavior
- Run guided compatibility tests before purchasing Pro
- Save device profiles, signal settings, and compatibility results locally
- Start, pause, resume, and stop every session explicitly from the app or Android media controls
- Use auto-stop limits and an eight-hour hard maximum to prevent forgotten sessions
- Configure Pro quiet hours that block new starts and stop an active session during a chosen local-time window
- Receive optional Pro reminder notifications that reopen a saved profile without starting playback automatically
- Stop safely when Android no longer reports the exact active route instance
- Use a remote-first interface on Android TV and Google TV
- Keep profiles, test results, settings, and bounded session history on the device with no SoundLatch account, advertising, or developer-operated backend
Frequently Asked Questions
What does SoundLatch do?
SoundLatch plays a user-started audio stream during otherwise quiet periods. Some compatible audio devices interpret that stream as continued use and delay entering standby, which can reduce delayed wake-up or clipped audio after silence.
Can SoundLatch force a speaker to stay connected or choose the final audio output?
No. Android does not provide a universal way for an app to force pairing, reconnect hardware, override device firmware, or prove the final physical audio sink. SoundLatch shows the expected Android-reported output and asks you to confirm where ordinary audio is playing.
Is the signal always inaudible?
No. Digital Silence is silent, while the advanced low-level signal modes are designed for compatibility testing but are not guaranteed to be inaudible on every device, volume level, amplifier, or listening environment.
Does SoundLatch start playback automatically?
No. Playback starts only after an explicit user action. Reboots, reminders, route changes, charging events, and quiet-hour boundaries never start or resume audio automatically.
Does SoundLatch include a subscription?
No. SoundLatch has a free tier with guided compatibility testing and offers an optional one-time lifetime Pro purchase through Google Play. There is no recurring subscription.
Does SoundLatch collect or upload my profiles and session history?
SoundLatch stores profiles, compatibility results, settings, reminders, and bounded session history locally. It has no SoundLatch account, advertising, first-party analytics, crash-reporting backend, or developer-operated server.
Help & feedback
Report a problem, suggest an improvement, or contact the developer about SoundLatch: Keep Speaker Awake. No GitHub account is required.
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