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