# Basic Specification * Supported format: mp3 * File size limit: within 10M * Suggested audio coding format: LC-AAC or mp3 ## 1. Best Optimized Method ### 1.1 Set an appropriate audio bit rate Generally speaking, the audio bit rate of standard sound quality is used: 128kbit/s; \ If you still feel that the audio is too large, it can be reduced to 64kbit/s or 96kbit/s, but it is not recommended to be lower than 64kbit/s; ### 1.2 Choose a appropriate audio sampling rate Generally speaking, use standard audio sampling rate: 4.41KHz; \ If you still feel that the audio is too large, you can reduce it to 2.2KHz, but it is not recommended to be lower than 2.2KHz; ### 1.3 Set the appropriate channel Generally choose two-channel stereo: stereo; ## 2. Specific audio conversion and compression tutorial ### 2.1 Download audio conversion software --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs-en.kivicube.com/manual-old/resources-specification/audio/basic-specification.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.