Use sound.wav as your output, instead of sound.mp3. Or if you literally mean raw PCM data with no headers, not just uncompressed, then try. ffmpeg -f dshow -t 10 -i audio="virtual-audio-capturer" -f s16le -y "sound.pcm" Play it back with. ffplay -channels 2 -f s16le -i sound.pcm Unless you really need headerless, I'd suggest WAV files for ease

FFmpeg can be used to convert a huge WAV file into a tiny MP3 file that allows the user to listen to the same song but downloading just a portion of the original size of the WAV file. In this article, I will explain to you how to easily convert a WAV file to MP3 using FFmpeg from the command line.

Now, we’ll convert M4A to MP3: $ avconv -i sample.m4a sample.mp3. Like FFmpeg, we can also specify the additional parameters when required: $ avconv -i sample.m4a -a:b 64k -a:c 1 sample.mp3. Notably, the options are essentially the same as FFmpeg. It’s worth noting that the Libav project has been abandoned.
1. You can do this by ffmpeg. ffmpeg -i input.mp3 -filter:a "atempo=1.5" -vn output.mp3. atempo maximum is 2; however, you can use the atempo filter more than once. Eg. to speed it up by 4: ffmpeg -i input.mp3 -filter:a "atempo=2,atempo=2" -vn output.mp3. The default output bitrate of ffmpeg is 128kb/s. If you have a higher quality MP3 file and
Convert a media file into another form/type (video->video, video->audio, or audio->audio) Download the open-source and cross-platform Miro Video Converter (implements ffmpeg) "Programmatic access" To download/convert youtube videos from a command line (with ffmpeg integration), the aforementioned youtube-dl seems to be the best solution.
For example, FFmpeg will convert WAV to MP3 with the following command. ffmpeg -i input.wav -vn -ar 44100 -ac 2 -b:a 192k output.mp3. 4. FFmpeg Extract Audio (Convert Video to Audio) In addition to converting the video/audio file to a different format, FFmpeg can also remove the video part or the audio part separately. The following command
Next, I also have to convert them into MP3 and store the MP3s into blob too. I decided to use something like ffmpeg.exe -i path.aac path.mp3. The problems are that: How to call external ffmpeg.exe inside a web service of a web role? what would be the path? Please help me if you know. Thank you in advance.
Mono 8000Hz. effective bitrate of 13.6. I need to convert these to MP3. Current I am forced to send the file first through sox: sox input.wav -s input-pcm.wav. Then through lame: lame input-pcm.wav output.mp3. There are a couple of problems with this a 1MB file takes 5s and the MP3 sounds like crap. I need to convert about 1.5TiB or audio files which are in either flac or wav format. They need to be converted into mp3 files, keeping important meta data and the cover art etc. and the bitrate needs to be 320k.
Without further ado, the script to convert all m4a files to mp3 format. (Because ffmpeg is liberal with its input, this would work for any audio files in the directory, just make sure to use the
For example, here is the command for converting WAV to MP3 in FFmpeg: ffmpeg -i input.wav output.mp3. Though FFmpeg can achieve audio format conversion and many other purposes efficiently, the process is quite complicated. Thus, it’s not recommended for those who know little about FFmpeg. Pros: Convert video and audio to MP3 fast.
convert wav to mp3 ffmpeg

I used, ffmpeg.exe -f s16le -ar 32000 -ac 1 -i raw_audio.raw -acodec copy output.wav. Seems converting process is finished okay, but the problem is, if I listen the output.wav, there's the big noise from output wav file. Also, it's not the same audio from original video. I tried specifying "adpcm_ima_wav" codec with "-f" switch, but it doesn't

The way to "mixdown" from stereo to mono in any supported file in ffmpeg is like so: ffmpeg -i file.ext -ac 1 file_mono.ext. The "-ac 1" bit instructs ffmpeg to output just 1 audio channel, i.e. mono. By default, this operation will preserve your file format but will revert your bitrate to the ffmpeg default of 64kbs.
To convert a video file from one format to another format, the following command is used: ffmpeg -i yourvideoname.mp4 -c:v libx264 outputfilename.wmv. The command below is an example of when converting a .mp4 file into a .wmv file. 8. Join (merge) multiple video files.
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