convert an mp4 audio file to mp3 audio file

This online audio converter supports vast conversions including OGG to MP3, OPUS to MP3, WAV to MP3, MP4 to MP3, M4A to MP3, MP3 to AAC, etc. The data can be a raw bitstream in an audio coding format, but it is usually embedded in a container format or an audio data format with defined storage layer. The bit layout of the audio data is called the audio coding format and can be uncompressed, or compressed to reduce the file size, often using lossy compression.

About:Īn audio file format is a file format for storing digital audio data on a computer system. Click icon to show file QR code or save file to cloud storage services such as Google Drive or Dropbox. The output files will be listed in the 'Conversion Results' section. It will automatically retry conversion on another server if one fails, please be patient while converting. Click the 'Convert Now!' button to start batch conversion. The target audio format can be WAV, WMA, MP3, OGG, AAC, AU, FLAC, M4A, MKA, AIFF, OPUS or RA.ģ. Set target audio format, bitrate and sample rate. You can use file analyzer to get source audio's detailed information such as track name, genre, bitrate and sampling rate.Ģ. Try the MP3 conversion with a AUDIO test file. To convert in the opposite direction, click here to convert from MP3 to AUDIO: MP3 to AUDIO converter. Change quality or size (optional) Click on 'Start conversion' to convert your file from AUDIO to MP3. Video and audio file size can be up to 200M. Choose the AUDIO file you want to convert. The source file can also be video format. Click the 'Choose Files' button to select multiple files on your computer or click the dropdown button to choose an online file from URL, Google Drive or Dropbox. There might be some other reasons here too, but the most important one is that it is not supposed to work in the first place.Īnyway, I recommend you stop trying to achieve that behavior because one does not simply convert the file by renaming it.1. mp3 is purely audio and most likely you are using different applications to open the two. mp4 is a combined audio/video format and. Most editors/viewers use the first line of the file (or first X characters) to determine the type.

And it still opens correctly becaue the program itself does not use extension to determine the file type. When you are then trying to open that file it is still opened with the same editor/viewer simply because your OS is set up to use the same program for both.

In fact, nothing changes apart from the filename. You can check it with comp command or with any available hex viewer. First let me point out where your mistake comes from.

Convert an mp4 audio file to mp3 audio file