Hi Adrian,
Yes quite a few Ham using FreeDV use filtering and EQ to improve the
speech quality, e.g. using external EQ boxes. We also have a microphone
and speaker equaliser in FreeDV, plus some noise reduction. More
recently, I have been working on automatic equalisation of input speech
to
Good work Adrian... I have heard that people have used codec2 to go to 450
bits/sec too... That's the reason I praisa David Rowe alot... His open
source work has been a gift for many researchers to play their role in
innovations..
On Tue, Sep 10, 2019 at 4:56 PM Adrian Musceac wrote:
>
> Hi
> Hi David,
> I think I can slightly improve the quality of playback of Codec2 samples
> with some rather computationally cheap methods. This might be of use to you
> for FreeDV.
> Please have a listen at the sample attached, which is Codec2 at 1400
> bits/s.
> Link included in case the attachment
