■What is the key problem solved by the "Voice Recorder & Voice Changer" ?
Audio retrieval is a difficult problem that has not yet been completely solved. When there are too many recordings, how can I quickly find the audio I want?
The most common solution is to search by file name. In our actual work, we found that search based on file name cannot meet the requirements. We hope to support some kind of semantic search, which will improve work efficiency.
So we designed a labeling system for "Voice Recorder & Voice Changer". "Voice Recorder & Voice Changer" supports tagging on any timestamp of audio, and supports users to make text remarks on tags.
In this way, by establishing an index for the text remarks of the tag, the user can quickly retrieve the remark information of the tag, and then locate the specific position of the audio through the timestamp of the tag.
This scheme solves the problem of semantic retrieval of audio to a certain extent.


■What are the applicable scenarios for "Voice Recorder & Voice Changer"?

▶For ourselves, we mainly use "Voice Recorder & Voice Changer" to record meetings, which is convenient for re-dictating meeting minutes. For some important occasions, the "Voice Recorder & Voice Changer" is used to record and archive.

▶We also believe that "Voice Recorder & Voice Changer" is suitable for students. By recording the teacher's explanation in class, it is convenient for review after class.

▶For personal record history. We like to use photos to document how we once looked. It is also a meaningful thing to use the tape recorder to record the tone of my past. A person's timbre changes every 8 to 12 months, faster than a person's appearance. You may now have pictures of yourself as a child and know what it was like to be a child, but it's hard to know what your voice used to be. Even if there was a recording, it was difficult to guarantee that the recording equipment of that era would not be distorted. Therefore, the high-fidelity digital recording based on the 44.1khz sample rate of "Voice Recorder & Voice Changer" will be the best choice for your sound recording.


■"Voice Recorder & Voice Changer" entertainment function
As a recording and audio processing app, we understand that entertainment functions are essential.
"Voice Recorder & Voice Changer" supports a variety of sound effects such as pitch shift, variable speed, equalizer, reverb, etc. The sound effects can be used alone or in combination, and the audio applied with the effects can be exported as a new file. so that it can be shared with friends.
You can create a variety of creative sounds based on "Voice Recorder & Voice Changer", please give full play to your creativity.