Phone as Speaker - SpkrLink

SpkrLink helps Android devices discover and prepare local Wi-Fi audio sessions without accounts, ads or cloud setup. Choose how each phone participates: • Receiver mode displays a temporary pairing PIN and makes the device discoverable on the local network. • Sender mode discovers compatible receivers, accepts a manually entered local IP address, and lets you select an audio source. • Choose a local audio file with Android’s system picker or use built-in reference tones. • Configure source playback, speaker volume, channel assignment, buffer preference and per-device delay calibration. • Works on a shared Wi-Fi network or compatible phone hotspot. All participating devices must run a compatible SpkrLink version and be reachable on the same local network. Wi-Fi conditions, device hardware, Android battery settings and router isolation can affect discovery and timing.

Fixes startup responsiveness and audio control stability. SpkrLink now renders immediately on cold start, and calibration, sender, receiver, and settings controls remain responsive.