YOO.SHASTAN
Yoo Shastan / Android Audio Lab / Preview

Audio Path
Inspector.

Go beyond the volume slider. Explore the audio routes, devices, formats and hardware details Android actually reports—with the evidence and limitations clearly labeled.

Read-onlyAudio diagnosticsOptional ShizukuHardware compare
See the app ↓Release status ↗
01 / Capabilities

Follow the evidence.

The app distinguishes advertised capabilities, configured settings, runtime observations and unknown values. A conceptual diagram is not proof of an end-to-end bit-perfect signal.

Signal path overview

View a conceptual chain from media through the Android framework toward output devices, with each stage's evidence status.

Hardware inspection

Search available ALSA, HAL, vendor policy and audio properties. Optional root-assisted Tinymix listing never changes controls.

Snapshot comparisons

Save a local baseline, rescan after plugging in headphones or changing a setting, and review added, removed or changed facts.

02 / On-device previews

See the Android audio stack.

Captured from a Pixel 8a development build. Availability of diagnostic data varies by device, Android version, Shizuku mode and vendor restrictions.

Audio Path Inspector conceptual signal flow on Pixel 8a, showing evidence states for framework, AudioFlinger, vendor HAL and connected output
Signal path — conceptual route with clearly labeled observed and unknown stages.
Audio Path Inspector hardware tab showing Shizuku collection, searchable ALSA and HAL sources and read-only root Tinymix inspection
Hardware — searchable, read-only diagnostics with per-source status and permissions.
03 / Access levels

Useful without root. Deeper with permission.

01 / STANDARD

Android APIs

Connected device inventory, declared capabilities and app-specific test-tone routing where reported. No privileged service required.

02 / SHIZUKU

ADB shell

Optional, user-authorized read-only framework and vendor probes. Some paths remain inaccessible because of SELinux or vendor policy.

03 / ROOT ASSIST

Tinymix inventory

Optional read-only listing through an explicitly approved root path. No gain changes, mixer writes, SELinux changes or HAL restarts.

04 / Project status

Developer preview

Early Android source project. A successful build is not the same as a validated production release; exercise care when sharing privileged diagnostic reports.

In development

Know the limits: Android-reported framework sample rates and vendor configurations do not prove a DAC's actual rate, bit-perfect playback or another app's current route. Reports can contain device identifiers and package names; review before sharing.