Intro: 00:00JUST GET STRAIGHT TO THE HOW-TO! 00:36If you've got a request for ULAW file or 8-biy PCM for a phone system or IVR voice over, then this video w
Click the “Choose Files” button to select your raw-audio files. Click the “Convert to WAV” button to start the conversion. When the status change to “Done” click the “Download WAV” button. A stereo 16 bit 44.1 kHz PCM file (CD standard) has a bitrate of 16 x 44.1 x 2 (stereo) = 1411 kbps, a mono 8 kHz WAV file of 64 kbps must have a bitdepth of 8 ( for 8 x 8 (kHz) x 1 (mono) = 64). It would be more common practice to say that this is an 8 bit 8 kHz mono file. In 8.0 Khz and 16 Bit Mono, 58K is equivalent to a two to four second sound file. Once the wav files match the specs above then you go into APX CPS and navigate to: Tools->VA Converter Utility Then you have to pick the folder where the wav files are stored and where you want the converted files to end up. Then let the program convert them to Asterisk will read natively WAV files encoded in wav 8kHz, 16 bits, mono. The following command will return the encoding format of the $ file RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, mono 8000 Hz Audio WAV file with mono PCM format. Observed results Checklist. I have read the FAQ; I tried the same with command line ffmpeg and it works correctly (hint: if the problem also happens this way, this is an ffmpeg problem and you're not reporting it to the right place) I have included full stderr/stdout output from ffmpeg If you have 32-bit WAV files, you might find yourself unable to use them in the same ways you can use 16-bit WAV files. There are several programs that can convert 32-bit WAV files to 16-bit files. Cool Edit Pro 2.0, Abyssmedia Audio Convertor Plus 4.1.0.0 and Audacity are some of the programs that you can use to convert WAV files.