Hi - Have WeChat audio files in aud.silk format and can’t convert to mp3 or wav. Been researching for hours, tried Audacity and it didn’t work so think it’s a settings issue. In summary, there are several steps to follow when exporting: Choose the file name to export to. Choose the folder to export to. Select the Format required for your exported file. Select the sample rate required for your exported file. Choose the export range: whole project, current selection or multiple files. He advises how to download an digital audio virtual cable and other software to link your recording directly from Audacity to be transcribed to a file in Google.docs. I have tried it briefly and it works but there are some drawbacks: you have to convert WAV files to MP3 and switch your sound system to the virtual cable, etc. Open Audacity, click File > Open. Select and import the M4A files. Step 2. Still go to File, click on Export > Export as MP3. Step 3. An Export Audio window appears. You are able to specify the name, choose a bit rate mode, change audio quality, channels and more. In Audacity with your file open, confirm the project rate is 8000 (shown in lower left corner of progress bar). Then, choose Edit | Preferences | File Formats. In the Uncompressed Export Format, choose Other…. Then, in Header, choose WAV (Microsoft) and in Encoding, choose U-Law. Then, choose File | Export as WAV and simply name it The basic problem with that tutorial is that it is totally wrong - absolute rubbish. A “Midi Sample Dump” is not a “MIDI file”. A “MIDI Sample Dump” is a SysEx MIDI protocol for transferring sample data to, or from a MIDI sampler. FundyFlutes April 29, 2020, 3:57pm 8. That explains why people show up on the forum wanting to convert Audacity software is an open-source, cross-platform audio editing suite designed for everyday users. It has two modes: mono and stereo channel mode. It is free and allows anyone to edit quickly, convert M4A to mp3, and mix and record audio files on various platforms. Audacity is ready to use but you won’t be able to export to MP3 format audio, only WAV format unless you go back and DOWNLOAD AND INSTALL THE LAME MP3 ENCODER… SEE LINK ABOVE. WARNING: DO NOT DOWNLOAD THE AVS AUDIO EDITOR (IT’S NOT FREE!) After you click on the Lame MP3 encoder link a new window will open. Click on this link. Step 1. Go to Audio Converter and upload the audio in batch or individually. Step 2. Look at the wheel gear Settings of the audio and click on it. Pick the desired format for the output, from MP3 to WAV. Step 3. Find the quality you want. Or, if you want to edit the bitrate manually, go to Edit> Bitrate. To export to formats listed as "FFmpeg" you must install the optional FFmpeg library. Many format types have size, quality or encoding options. Select the format type then click the Options button in the Export Audio / Selected Audio or Export Multiple dialog to view the options for that selected format. rXD1Mi.