I am trying to convert mp3 to wav foramt in python. I have searched and found this code If you do pydub.AudioSegment.converter = r'C:\\ffmpeg\bin\ffmpeg.exe Convert WEM into OGG. Extract the ww2ogg ZIP into the same folder with WEM files. There must be the file ww2ogg.exe. Place the reVorb EXE file inside the folder with WEM files and with ww2ogg.exe. Create a new text file in the same folder, the content will be the code you can find here below. kdazzle's solution is almost there - it still output a stereo wav, here is a slightly modified version that generate mono: ffmpeg -i 111.mp3 -acodec pcm_s16le -ac 1 -ar 16000 out.wav also, if this is for pre-processing speech data for sphinx 4 see here: Convert audio files for CMU Sphinx 4 input Converting your MP3s. Command line for encoding all your mp3’s in some directory using ffmpeg to a mono WAV and PCM u-Law file of 64kbits/s at 8000Hz sample rate. These files will sound fine down a phone line. But not at a disco! The resulting WAV and PCM u-Law files will be larger then the original mp3, but that’s no big deal. ffmpeg -i filename.mp3 newfilename.wav newfilename.ogg newfilename.mp4. This will result in converting 3 output audio files (wav,ogg,mp4) from one mp3 file. Alternatively, you can set the desired codec using the -c command like this: ffmpeg -i filename.mp4 c:a libopus newfilename.ogg zrJE3U. I am currently developing a website using the CodeIgniter framework and in one of the Process I need to download a .wav music file and convert it to .mp3 file. All the coding needs to be done only in PHP and I cannot use Ruby or java to do so. And I am currently hosting on a shared env i.e. Dreamhost. Slightly modifying the command line by @izx, I got this: ffmpeg -i in.mov -map_metadata -1 -c:v copy -c:a copy out.mov. The result is (again, checked with exiftool ), a metadata record reduced from 81 to 52 lines. Note that you can't simply remove all metadata, some things will stay. FFmpeg can be used to convert any type of media file to other formats in a single command and the command to convert an MP3 file to an MP4 file is as below: ffmpeg -i input.mp3 output_simple.mp4 The file generated is an audio-only MP4 file and it can be played on a media player perfectly. To convert the whole folder $ mp32ogg * .mp3 * .ogg. Here are some common conversions in sound files using Ffmpeg. WMA -> MP3. After the parameter ab we will specify the bitrate MP3 (192 in the example). $ ffmpeg -i inputFile.wma -f mp3 -ab 192 OutputFile.mp3 MP3 -> AMR $ ffmpeg -i music.mp3 -codec amr_nb -ar 8000 -ac 1 -ab 32 music.amr WAV I'm using the following basic ffmpeg commend to convert a WAV file to an MP4. ffmpeg -i response.wav -s 1980x1080 -c:a aac -b:a 128k aNewVideo.mp4. This is great, however I'd like to include a black background on the mp4 file, and as it stands this doesn't add ANY background (see below).

convert mp3 to wav ffmpeg