I'm trying to get files played through a mono (SCO) BT headset in Android. The files have to have an 8000 Hz frequency, but the ones I have are 44100 Hz. The files are MP3s, but I've already created code to convert them to WAVs, since I know that Android doesn't handle MP3s natively. Step 2 Define Amazon Music output format as MP3. Move the cursor to the top-right corner ' Menu ' icon on the DRmare Amazon Music Converter program. Then choose ' Preferences ' and click on the ' Convert ' option. Then you can get started to define the output format as MP3. You can also alter the channel, output path, conversion speed, and so Steps to Convert Files to MP3 on Android with Audio Converter: Step 1 Download Audio Converter on Google Play Store then launch the application. Step 2 Tap the Allow to allow the application to have access to your media files. Step 3 On the main interface, tap the Files then select the file you want to MP3. Select MP3 as Output Audio Format After you've set this thing up, you can do some neat .mid to .wav conversion. Here is the official docs for that. Gonna leave the code here in case the link goes down. fluid_settings_t* settings; fluid_synth_t* synth; fluid_player_t* player; fluid_file_renderer_t* renderer; settings = new_fluid_settings (); // specify the file to store the STEP 2. Click the Download icon next to the title of the Audible book you want to download. Once the download process is finished, the Download button will no longer show. STEP 3. Connect the Audible-supported MP3 player to your computer, and click on the device icon on the left side of the screen. Now go back to the Configuration Properties section then to the C/C++ subsection, then to the General item. Select Additional Include Directories from the list of now available options and add the extracted archive path to it. Environment ready for LAME. Secondly, grab the lameHelper_dd_mm_yyyy archive and extract it. Error: (49, 41) error: cannot find symbol method readFileToByteArray (File) i think you have not defined that method in FileUtils, did you ? i have resolved this issue by changing the code as follows: //byte [] bytes = FileUtils.readFileToByteArray (file); byte [] bytes = new byte [ (int)file.length ()]; The important part here is the setOuputFormat and the setAudioEncoder. Apparently MediaRecorder records playable mp3 if you're using MediaRecorder.OutputFormat.MPEG_4 and MediaRecorder.AudioEncoder.AAC together. Hope this helps somebody. In order to make PCM audio more compatible and played on any kind of media players like iTunes, Windows Media Player, MP3 Player, Android Phone, iPhone or BlackBerry, we had better convert PCM to a more popular audio format like MP3, WAV, WMA, AAC, AC3, AIFF and etc. Step 1: Import WAV Files to the Best Audio Converter. In order to play WAV on Android devices with ease, we should make an essential preparation at first. Launch HD Video Converter Factory Pro and open Converter module and directly drag and drop the WAV files to the program or click Add Files option on the top of the program to import the .wav hZ7JVL.