In this case, the audio is in a linear PCM format, recorded at a 44.1 kHz sample rate and a 16-bit bit rate (signed integer, little-endian). Notice the 5.1 designation. The data rate of 4608 Kbits per second in this file is significantly higher than the rate for either of the previous examples, because the audio file contains 6 audio tracks.
If you are exporting a constant bit rate spoken word MP3 such as an audiobook and have a stereo track in Audacity where both channels are identical, it is preferable to use Tracks > Mix > Mix Stereo down to Mono to convert to a single mono track before export. This will still sound the same on stereo equipment, but have higher quality because Is what I found on the internet. But the outfile is not a pcm wav: file *.wav RIFF (little-endian) data, WAVE audio, mono 22050 Hz Where a reference wav from xiph.org is pcm. file wb_male.wav RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, mono 16000 Hz speexenc does encode the last PCM WAV, but does not with the mplayer file. Why
To use soxr your ffmpeg must be compiled with --enable-libsoxr. Then choose it with the -resampler option: ffmpeg -i input.flac -resampler soxr -sample_fmt s16 -ar 48000 output.flac. Or use the aresample filter to do it all: ffmpeg -i input.flac -af aresample=resampler=soxr:out_sample_fmt=s16:out_sample_rate=48000 output.flac.
If your samples are 16 bits (which appears to be the case), then you want to work with Int16. Each 2 bytes of the sample data is a signed 16-bit integer in the range -32768 .. 32767, inclusive. If you want to convert a signed Int16 to a floating point value from -1 to 1, then you have to divide by Int16.MaxValue + 1 (which is equal to 32768
How to convert an audio file to 8000Hz 16Bit Mono Wav in UWP C# to be used in ACRcloud UWP SDK but you need to check as 1.8 version was a bit restricted in UWP
The normal procedure would be to leave Audacity’s recording settings at the default 32-bit float / 44100 Hz, select “1 channel (mono)” in the device toolbar, then after recording, change the Project rate to 8000Hz and export as 16-bit WAV. Hey guys, I’m having a bit of a problem and I haven’t found a solution online yet.
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    • convert mp3 to wav mono 16 bit