Add Support for 44.1 kHz #43
Description
I'm a passionate music listener, and a game developer, so I deal with a lot of music and sound files.
99.9% of the content that I encountered in my life is in 44.1 kHz sampling rate, but Opus does not support that. I'm really concerned about the resampling.
From the documentation https://wiki.xiph.org/OpusFAQ#But_won.27t_the_resampler_hurt_the_quality.3F_Isn.27t_it_better_to_use_44.1_kHz_directly.3F
The Opus encoder is heavily tuned for 48 kHz now and using it at 44.1 kHz will cause it to make sub-optimal decisions.
Isn't the better solution, is to add a special mode for the 44.1, and tune that mode the same way as 48 is tuned?
Because right now when trying to use Opus with 44.1, we have resampling + lossy compression on top of that. So 2 lossy operations.
If you would provide a tuned version of the encoder for 44.1 mode, then we would have only one lossy operation, which is the encoding, without having to do resampling. I think that would be the best solution.
I strongly believe that if you would add native support for 44.1 sampling rate, then Opus would become much more popular. Because, like I said at the start, at least in my experience, 44.1 is the 99.9% of the audio content flying on the internet, and because of the resampling needed, Opus doesn't seem like a perfect solution, for which I'm still sticking with Vorbis.