Audio Devices

Test whenever you touch StellarrStandaloneApp.cpp, audio I/O code, or the JUCE AudioDeviceManager integration.

Prerequisites

• At least one audio interface (USB or built-in)
• Ideally a second audio device you can plug/unplug during testing

Test Cases

TC-AD-001: Device selection persists across launches

Steps:

1. Open Options > Audio/MIDI Settings
2. Change the output device to something other than the default
3. Close the dialog
4. Quit and relaunch the app

Expected: The previously selected device is still active.

TC-AD-002: Device selection persists after crash

Steps:

1. Change the audio device in Options
2. Force-quit the app (kill from Activity Monitor, not Cmd+Q)
3. Relaunch

Expected: The changed device is still selected. Settings survive the crash.

TC-AD-003: Mute input preference persists

Steps:

1. Open Options > Audio/MIDI Settings
2. Toggle “Mute audio input” on or off
3. Quit and relaunch

Expected: The mute preference is remembered.

TC-AD-004: Launch with unavailable device

Steps:

1. Select a USB audio interface as the output device
2. Quit the app
3. Unplug the USB device
4. Relaunch the app

Expected: App launches without crash. Falls back to default audio output. Audio works.

TC-AD-005: Hot-plug audio device

Steps:

1. Launch the app with built-in audio
2. Plug in a USB audio interface
3. Open Options > Audio/MIDI Settings
4. Select the newly connected device

Expected: Audio routes through the new device. No crash.

TC-AD-006: Sample rate and buffer size persist

Steps:

1. Open Options > Audio/MIDI Settings
2. Change the sample rate (e.g. 44100 to 48000)
3. Change the buffer size
4. Close the dialog, quit, relaunch

Expected: Sample rate and buffer size are restored.