NOTE: Depending on the type of CPU in your Asterisk server, if you hear a high-pitched screech instead of your audio file, you may need to use the --endian big switch like this: sox input.wav --rate 8000 --channels 1 --type raw --endian big output.sln lowpass 3400 highpass 300. ulaw did not produce results that sounded as good as sln.
I want to send it to another audioplayer directly (also using subprocess) and it supports only wav files, I just find it more convenient to do it on the fly instead of converting everything and then play wav file(s). The player I send the avi file does support input on stdin. – You can do so easily with SoX's pad argument and the following syntax: sox pad . Example: sox mp3.mp3 mp3withsilence.mp3 pad 0 1. Those silences are in seconds. (Other usages are possible using a different syntax, so as to insert those silences at specific positions.
It is probably simply too long to avoid troubles. First of all the wav is uncompressed audio format. I would suggest to convert any mp3 file to c header, as mp3 is simply smaller. If you don't care about the stereo, I would also convert the file to mono, so again it will be smaller. In microcontrollers world memory is at a premium.
Open Handbrake and click on Source. Then, select the file you want to convert; once it’s loaded, click on the Enqueue button, and it will add the file to the queue. Click on Source again, select the next file, and add it to the queue. Repeat the process to add all the files that you want to convert (Figure 4). Alternatively, if you want to
Step 1 - Select the Ape Files for Conversion. Select the Audio Converter Tab. You will see it opens your music library. You can also browse for a specific audio file location, for example, via an external drive. Using Folder Explorer, browse for the APE Files that you would like to convert to WAV. . 55 324 59 395 347 140 23 79 64

convert mp3 to wav linux