Convert any audio (M4A, WMA, WAV...) or video (MP4, AVI...) to MP3 without installing any software! CloudConvert does this conversion for you with highest quality. As default setting your MP3 file will be ~250 kbps VBR (variable bitrate) encoded. If you want to get a even higher bitrate (e.g. 320 kbps constant bitrate / CBR) you can use the advanced settings () to change the encoding.
The following options are available:
|Trim:||Cut the resulting MP3 at the beginning and / or the end. The start / end timestamp must be formated as HH:MM:SS.|
|Audio Variable Bitrate:||Set the target bitrate range. We recommend to use a variable bitrate (VBR) because the bitrate will be automatically adjusted to the actual needed bitrate. If you want to you can select and set a constant bitrate (CBR) here, also.|
|Audio Channels:||If you want to get mono instead of stereo output, you can set it here.|
|Audio Frequency:||The sample rate for the output MP3. Normally this is 44100 Hz.|
|Audio Normalization:||If your input audio is too quiet (or too loud) you can boost the volume here.|
WMA is a proprietary audio container format of Microsoft. There are 4 codec used in WMA – WMA, WMA Professional, WMA Lossless and WMA Voice. It uses one of the four WMA codec to encode audio. WMA contains the audio file in Advanced Systems Format (ASF) format. The ASF file decides how the metadata will be encoded.
MP3 is an audio format that can compress and encode an audio file. It uses the lossy compression algorithm to contain audio data. The lossy compression helps to reduce the data significantly without losing audio quality. MP3s are created using different bit rates maintaining the original quality.
CloudConvert supports the conversion between more than 200 different audio, video, document, ebook, archive, image, spreadsheet and presentation formats. Check the supported formats for more details.
There is no need to install any software on your computer! Upload your files to CloudConvert and we will do the job for you. Don't worry, your files are safe and only you can access them. They will be deleted again as soon as your conversion is finished.
Most conversion types support advanced options, for example setting the codecs of audio/video files. Also, we support batch converting and folder monitoring!
The CloudConvert API offers the full functionality of CloudConvert and makes it possible to use the conversion services in your own applications.