jmvalin

6 ms·

31.
by jmvalin 9y ago
I'm not sure how the audacity works exactly, but keep in mind that one goal of RNNoise is real-time, so it cannot look ahead when denoising. OTOH, if you're denoising an entire file, then you should look at the whole file at a tim
32.
by jmvalin 9y ago
Interesting -- and unexpected. I also wrote the Speex suppressor and one of the things that specifically annoyed me about it was the robotic noise and the pseudo-reverberation it adds to the speech, but it seems like some people (like you)
33.
by jmvalin 9y ago
The "distortion" you're hearing is actually just the leftover noise. When there's noise and speech at the same time and frequency, then you can year some of both and it sounds a bit harsh -- like distortion. In general,
34.
RNNoise: Noise Suppression with Deep Learning(people.xiph.org)
15 points by jmvalin 9y ago|2 comments
35.
by jmvalin 9y ago
Even that should happen relatively quickly since so far we've also preserved API and ABI compatibility (since 1.0). Also, we're working closely with the Firefox and Chrome teams so they know what's going on with Opus.
36.
by jmvalin 9y ago
All Opus releases since 1.0 are fully compatible with the specification (RFC 6716) and all future releases will also be. That's why we have standards. If we ever decided to make something that's not compatible, it would be called
37.
by jmvalin 9y ago
The threshold for "transparency" varies a great deal across users. Some people I know cannot ABX 64 kb/s Opus from the uncompressed original, yet once in a while we hear of someone being able to ABX one particular sample all
38.
by jmvalin 9y ago
At low bit-rate, lame applies a low-pass and resamples to a lower sampling rate. If it didn't to that, MP3 would end up completely starved of bits (trying to code all frequencies) and have really atrocious artefacts. Based on personal
39.
Opus 1.2 Released(jmvalin.ca)
226 points by jmvalin 9y ago|81 comments
40.
by jmvalin 10y ago
Obviously, the rates for these images are the same across all codecs. Choosing the rate for such comparison is also a little tricky. If you choose a rate that people would use to make their image look really good (which how most people comp
41.
by jmvalin 11y ago
There is an alternative: you host your thesis (and/or papers) on your own website, or you put them on arXiv.org. It's called self-archiving and it's allowed by most publishers. Funny thing is: making your papers available for
42.
by jmvalin 11y ago
You have to start somewhere. Expect more companies to join.
43.
by jmvalin 11y ago
Well, DRM is completely independent from the codec. You can put DRM on a free codec and you can have a non-free codec without DRM. As for Hollywood... note that the Alliance also includes Netflix.
44.
by jmvalin 13y ago
There is no release yet, but Cisco is saying they will be releasing the source code of the full implementation, not just nvidia-style hooks to a binary blob. AFAIK, the plan is for users to be able to replicate the build and see that the bi
45.
by jmvalin 13y ago
CPU usage in the decoder is currently higher than Vorbis, though most of the difference is due to having less optimizations. As for the encoder, it's already faster than Vorbis and should become even faster in the future. I haven'