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 bit-depth (8-bit vs 16-bit) compression (low bit-rate MP3 vs AAC or OGG) microphone (cheap vs not quite so cheap) positioning of microphone vs reader; original medium (analog vs digital / cassette tape vs MiniDisc or PC) a previous up-sample from a far lower sample rate (which is what you're trying to do now).
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The simplest way I can think of is using the PyTorch mean function as in the example below. import torch import torchaudio def stereo_to_mono_convertor (signal): # If there is more than 1 channel in your audio if signal.shape [0] > 1: # Do a mean of all channels and keep it in one channel signal = torch.mean (signal, dim=0, keepdim=True) return
So we will need to upsample to 44.1kHz before passing it into the encoder. So now let's ask Windows if there is an MP3 encoder available that can encode mono 44.1kHz audio, and just request the lowest bitrate available: mediaType = MediaFoundationEncoder.SelectMediaType ( AudioSubtypes.MFAudioFormat_MP3, new WaveFormat ( 44100, 1 ), 0 ); Now

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.

WAV 16 Bits-44100-Mono is a very rare format for music. There a few converters that can download in that format. I think Notube.me can do this. I use this converter for almost everything I want to download from youtube and I have never had problems with it. The thing I like the most about it is that it has a lot of formats for videos and music OI6y.
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    • convert mp3 to wav mono 16 bit