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Youka Live does not receive audio

  1. Open System Settings → Privacy & Security → Screen & System Audio Recording.
  2. Enable Youka Live.
  3. Quit and reopen Youka Live if macOS asks you to restart it.
  4. Play audio in another app and turn on Live again.
Also confirm that the intended speakers or headphones are selected in macOS Sound settings. Youka Live follows the current system output automatically.

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Audio becomes silent after turning on Live

This is expected while Youka Live starts. The app mutes the original system audio first, then runs an internal reliability check. Green Ready means the route is working but no source audio needs processing. When source audio arrives, blue Buffering prepares synchronized separated audio. Keep the source playing until the menu changes to green Live. If calibration or processing fails, Youka Live switches itself off and restores normal system audio. Select Try Again after closing other demanding apps or correcting the audio output problem.

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The separated audio is delayed

Some delay is expected. Youka Live must collect enough audio for separation and a stable playback buffer before it can output separated stems. The current separation profile adds approximately three seconds. Youka Live chooses the separation profile automatically. It is not intended for zero-latency stage monitoring.

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Live needs attention while preparing or playing

Youka Live measures separation performance with an internal signal when it is enabled, then continuously watches inference deadlines, input backlog, output lead, and separation errors. If the Mac cannot keep up reliably, Youka Live stops separated playback instead of allowing a growing delay or repeated interruptions. When this happens, the Live switch turns off and normal system audio returns. Close other demanding apps and select Try Again. The new attempt runs the reliability check again under the current system load. If the same message returns under a normal workload, include your Mac model and the exact message when contacting support.

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The activation request expired

Activation requests normally last ten minutes. Return to Set Up Youka Live and select Continue in Browser again. Approve the computer in your browser, then select Return to Youka Live. If you buy another license from a device-limit screen, Youka keeps that activation request available while its checkout is open.

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The browser says the device limit was reached

A personal license supports two active computers. Deactivate a computer you no longer use under Manage Youka Live license, or select Buy another license for $79 on the activation page. After payment finishes, the same activation request resumes automatically.

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A purchase or model upgrade is not appearing

On the completed checkout page, select Open Youka Live. If you already returned to the app, keep it connected to the internet and select Refresh License. Make sure you purchased with the same Youka account used to approve the Mac. Stripe may briefly show the payment as processing. Wait a moment and refresh again. You do not need to select the upgraded model manually; Youka Live loads the newest model generation included with the personal license assigned to that computer.

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The app says “License unavailable”

  • Confirm that the Mac can reach online.youka.io.
  • Select Try Again.
  • If this is the first activation, return to setup, select Continue in Browser, and complete browser approval.
  • If the app was reinstalled, sign in with the account that owns the license and activate the Mac again.
A previously synchronized perpetual license remains usable offline. Trial time also works offline and decreases only while separation is Live. At zero, Youka Live turns Live off and restores normal system audio. Reinstalling the app does not reset the account’s shared 30-minute allowance.

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Diagnostics and usage analytics

The direct-download macOS app automatically reports crashes, hangs, unexpected license failures, terminal Live Separation errors, and successful audio-route recovery to Youka through Sentry. Sentry starts when the app launches so startup and activation failures are not missed. The App Store version does not include Sentry. During prerelease, production versions of Youka Live send product-use and reliability analytics through PostHog. Depending on your approximate country, analytics either starts automatically or the app asks first. You can change the choice anytime in Settings. After trial activation or paid-license activation, the app uses your stable internal Youka user ID to connect app activity with website, licensing, checkout, and purchase events. Local development builds do not send PostHog analytics unless they are explicitly enabled for QA. Analytics and diagnostic reports do not include captured audio, separated stems, song or application names, audio-device names, email addresses, hardware-device identifiers, local file paths, activation codes, license credentials, request bodies, authorization headers, or raw error messages. For a repeated problem, include the approximate time, Youka Live version, and the action you took immediately before it happened so support can locate the matching diagnostic event.

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The menu-bar icon is missing

Open Youka Live from the Applications folder. If the icon still does not appear, open Activity Monitor, quit any existing Youka Live process, and launch the app again. If the problem continues, contact support@youka.io and include your macOS version, Youka Live version, current system output device, and the exact error shown in the menu.