Please check if your browser has permission to use the microphone. You can usually check permissions by clicking the lock icon in the address bar. Also, ensure your microphone is properly connected and not being used by another application. In some operating systems (like macOS or Windows), you may also need to grant the browser access to the microphone in system settings.

All recordings are initially saved in your browser's temporary memory to ensure processing speed and privacy. To save permanently, please click 'Save to Library' to store the audio in the local database, or directly click the download button to save to your device. Please note that if you refresh the page or close the browser without saving, the current recording data will be lost.

To achieve professional-grade recording results, it is recommended to: 1. Record in a quiet environment to reduce background noise; 2. Enable 'Echo Cancellation' and 'Noise Suppression' in the 'Recording Config'; 3. Use an external condenser microphone instead of the computer's built-in one; 4. Maintain an appropriate recording distance to avoid popping. You can also adjust the sample rate (e.g., 48kHz) in the settings as needed.

Veecel Lab theoretically supports several hours of continuous recording. The actual limit mainly depends on your computer's available RAM (memory) space. For very long recordings exceeding 2 hours, we recommend recording and saving in segments to ensure data security. During recording, you can pause at any time and resume when ready.

Auto Gain Control (AGC) is an algorithm that dynamically adjusts the recording volume. When your voice is too quiet, it automatically increases the gain; when it's too loud, it reduces the gain to prevent distortion. This is very useful for situations where the ambient volume is unstable or the distance from the microphone changes, ensuring the final recording volume remains within a comfortable range.

To prevent loud feedback loops, this tool does not enable real-time monitoring by default. If you need monitoring, it is recommended to use a hardware microphone or sound card with a monitoring function. On the recording interface, you can visually confirm if the sound is being input correctly through the 'Real-time Waveform' and 'Volume Monitor' bars.