Audio Extract Kit is not just a completely free batch audio extractor, it is also a powerful audio processing APP that can perform some commonly used audio processing tasks, export lossless MP3, and give you good sound. The app includes functions such as online extraction,audio extraction,transcode,format coversion,croping,concatenate,split,mixing,voice msg export,fade,volume adjustment,beeping,change tempo,noise reduction,vocal remove,change pitch,extract channels,merge channels,surround sound,audio tag and album cover,audio reverb, Lyrics editing,make ringtone. Supported formats: mp3、wav、ogg、m4a、aac、m4r、wma、flac、ac3、mmf、amr、wv、slk、silk、mp2 Supported channel type:mono, stereo, quad surround, 5.1 stereo, 7.1 stereo Online extraction: Extract audio and video from web pages online Audio extraction: Extract lossless mp3 or other format audio from the video ,supports batch mode. supports multi-audio track extraction. Format conversion:Convert audio files to different music formats Audio croping: Selected section from audio to generate a new audio or remove selected section, it can make ringtone for your phone. Audio concatenate: Concat multiple audio into one mp3 or other format audio. Audio split: Splite audio by duration or number of files. Audio mixing: Mix multiple audios into one audio. Voice export: Concat and export the voice message files of common social app. Fade: Fade the beginning and end of audio. Volume adjustment: Increase and reduce the volume of audio files in mp3 or other formats. Audio beeping: Repace the section of audio with 'beeping'. Tempo adjustment: Adjust the audio playback speed. Noise reduction: reduce the noise in the audio. Audio insertion:Insert a new audio at the specified position Audio recording:Record the microphone sound into an audio file Vocal remove: remove the vocal from the music, only keep the accompaniment. Vocal separation:Separate sound/vocal/accompaniment/drums/bass/piano sound effects from a audio. Pitch adjustment: Change the pitch of the audio Channel extraction: Separate multiple channels in audio. Channel merger: Merge multiple channels into one mp3 audio Surround sound: make audio into 3D surround sound Tags and cover: add album and cover information to audio audio reverb: Reverberation of audio Lyrics editing: making Lrc lyrics Equalizer: 31-band equalizer adjustment Chorus effect: Produce chorus effects such as two/three/multiple people Speech to text: Convert recording audio to text txt files Text to speech: Convert text into audio speech, and provide a variety of timbres MD5 modification: Change the MD5 information of the audio file SLK to MP3: Convert SLK format to MP3 format MP3 to SLK: Convert MP3 format to SLK format More features are waiting for you to discover.