Simply upload your text file, click to convert it to MP3 format, and then download the new audio file. If you don’t mind paying for audio creation, or you need to create an audio file in another language, there are also many paid text-to-speech apps, including NaturalReader, Speechelo and Murf. There are 4 basic steps using which the user can convert M4p audio file to Mp3 audio file, they are: - - Upload your M4p audio file which requires a change in the space provided. - Hit the upload button to start the audio format conversion. - Wait for a small count meter to reach 100% for the conversion to complete. Choose the M4A file you want to convert. Change quality or size (optional) Click on "Start conversion" to convert your file from M4A to MP3. Download your MP3 file. To convert in the opposite direction, click here to convert from MP3 to M4A: MP3 to M4A converter. Try the MP3 conversion with a M4A test file. Not convinced? Download for Free. Download for Free. Step 2. Add your MKV files. Locate the MKV files you want to convert and drag-and-drop them into the program’s window. The application can convert big batches of files – there’s no limit to how many files you can transfer at once. Step 3. Select MP3 as the output format. In the Formats menu, select Convert the file. Now your video is uploaded and you can start the AVI to MP4 conversion. If it is needed, change the output format to one of the 37 video formats supported. After that, you can add more videos for batch conversion. Step 3. bQjP.