Of this is synthesias ceo, victor ripabelli. Hello, victor. We have looked at your technology before on the programme. At the moment there is an option of voices available on the platform but you can prerecord your own. But how about creating an artificial version of our own voices . Is that something that is likely to be possible soon . Yeah, absolutely. I think thats the natural next progression of this type of technology. We can now replicate your image in a very believable way and soon your voice as well. The technology for voice is kind of there today. But it requires a lot of audio to really work. Usually the kind of rule is Something Like 15 20 hours in a professional Recording Studio of you reading aloud text. Why is it so much harder to do voice than video . There are several reasons, but one of the reasons is that if you think about what a computer sees, then if you replicate a video of you in the kind of style you have seen with lara, there is, the kind of space of possibilities is quite constrained. Its like, we are replicating video of someone sitting here speaking and we need sync their lips and head movements and things like that, if you are trying to do Something Like this with a voice, the Training Data will be a lot more limited so lets say even if you have two hours of you talking, that is still very, very little of all the things that you could possibly say. So could i use your platform to upload a video of anyone . Not me, and create a virtual version of them . No. Why not . We need written consent from whoever is being uploaded, so it is not, everything goes through manual review and we only do custom avatars for corporate clients. So clearly you have protocols in place, but is the very existence of this technology, the fact that all of this is possible, not a pretty big risk in itself that the wrong people will use it . We have seen these kind of things happened before. Definitely, i think that synthetic media as a whole definitely comes with potential for misuse and that something that is really important that we address, both from a technical perspective but also from an educational perspective. I think its technology can be used for good info bad. Im not sure i think that deepfakes or video is uniquely different from being able to forge text or images or tweets which has been possible for the last 20 years. But it certainly that something we need to be really aware of. Thanks, victor. So the reality is that making fake videos has become a lot more sophisticated. And we are already all too familiar with how false information can cause real harm and has damaged Peoples Trust in use. And even though most of the conversations have been centred around facebook, youtube has also been a big contributor to the spread of misinformation. Now, the upcoming us election is going to take place even more emphasis on this issue. So the bbcs specialist disinformation reporter, Marianna Spring, has been finding out more. Youtube has an incredibly smart algorithm. At least smart enough to make the company a lot of money. More eyeballs on a video and more engagement equals more cash. Its simple. But what is not simple is how potent this combination has become. Videos from Fringe Groups with extreme ideas surfacing to the top and influencing users views. The pandemic has pushed the issue to new levels. With false information about the coronavirus often finding a much larger audience than trusted sources, as the months have gone on, youtube has become inundated with documentary style films from pseudo scientists promoting conspiracy theories. This pandemic documentary received millions of views. Despite efforts to remove it from youtube, facebook and twitter, users were constantly re uploading the clip. And in recent weeks, demonstrators have taken to the streets in london to promote some of the most popular coronavirus conspiracy theories, mainly seen online. A man who would like to remain anonymous got in touch with us after his mum decided to go along. Mum had two posters, one read, arrest bill gates for crimes against humanity, the other had a qanon hashtag, save the children. She was first taken in by coronavirus conspiracy videos on youtube and now she has been radicalised by qanon on there too. Its so hard to have a normal conversation. Qanon is a Conspiracy Theory that suggests President Trump is waging a secret war against satanic paedophiles in government, media and business. Since the last us election, the social media giants have had a bit of a reckoning. They are all trying to clean up their act to stave off a heavy handed regulation. Facebook with its oversight board, twitter with its more robust warning labels and now on youtube says it is handed a new tool to its labels and now on youtube says it has added a new tool to its arsenal to combat misinformation. It partnered up with Fact Checking sites to warn users if the phrase they are searching is refuted and pointing them to information by a trusted source. Put simply, its a tool where when users go to search for a particular topic on youtube, if there happens to be a fact check, these fact checks are generated by third party publishers, that will trigger in the results of that particular query, right at the top of the query and it will link out to that fact check, saying whether that particular claim is false, often times Fact Checking publishers have a rating of that type of claim, that will be displayed as well. This is one of the many tools youtube says it uses to reduce misinformation on the site. But none of these measures seems to be proactive and doing nearly enough to reduce exposure to misleading information. With the changing nature of information around this pandemic, what is the new type of misinformation that might pop up . Before there was the conspiracy around 56 and covid 19, who would have guessed those two randomly separate pieces of technology and science would be linked together . Well, that happened in the course of the pandemic, so we had to adjust very, very quickly to change our enforcement guidelines. You say that these conspiracy theories are new and evolving but a number of the ones that are still being promoted on your platform have been around for months. Especially in foreign languages, including russian and hindi, of false conspiracy theories about the origin of coronavirus or even doubting its existence. The content that might not clearly crossed the lines of our policies, we reduce that content in our recommendations. So a fitted borderline content in nature. Because as i said, misinformation can be murky, but we still want to reduce the exposure it. Youtube says it has removed millions of videos containing misinformation from the platform. In many instances, before anyone has viewed them at all. But there have been numerous examples of videos promoting false claims of conspiracy theories about coronavirus, especially in foreign languages. And those have stayed on for months, accumulating hundreds of views. The Mozilla Foundation behind the firefox browser has decided to act. This week it has released a new extension for both chrome and firefox called regretsreporter. The idea is that the user can report any recommended content that they found unsavoury. Mozilla says this helps Crowdsource Research into youtubes recommendation problem and it hopes it can force youtube to become more transparent about how its algorithm works. I think that youtubes algorithm is really one of the most opaque ones out of all of the platforms out there, which is why they have a lot more work to do. So youtube has come out with a lot of statistics like saying that they have increased, introduced policy changes that have worked to decrease recommendations of borderline content by upwards of 70 . But the problem is that there is really no way to verify whether or not this is the case without involving the public, without involving, you know, researchers, sociologists, people who have knowledge that goes beyond just the boardrooms of silicon valley. That together we are better able to solve this problem of misinformation surfacing in recommendations. That was Marianna Spring and thats it for the short cut of this weeks click. The full length version is, as ever, waiting for you on iplayer right now. As ever, you can keep up with the team throughout the week on social media. Find us on youtube, instagram, facebook and twitter bbcclick. I dont believe it, she has already gone and left her virtual self to do all the work. Seriously. All right, from the real me and the not so real her, thanks for watching and we will see you soon. Bye bye. Hello. Well, for some of us, friday was an extremely windy day, caused by an area of low pressure sitting in the southern portion of the north sea, you can see spinning around here, and it sent the howling winds all along the north sea coast from the north east of england, around the lincolnshire coast, east anglia and down into the south east as well, and these are some of the gusts we had during the course of the afternoon. Donna nook, which is very close to grimsby, nearly 70mph, and even further south, in london itself, in northolt, around 46mph, so some very blustery conditions, and big waves out to sea and along the coast, and the cold air which this low pressure has dragged down from the north will be with us here during the course of the weekend, so a nippy weekend on the way for many of us. Having said that, its actually going to be relatively bright for many parts of the country, but not completely dry because we have a few showers in the forecast too. So this is what it looks like early on saturday morning. Still some showers around across the east and east anglia as well as the south east. You can see strong gusts of wind continuing, in fact the remnants of this low pressure still there making its presence, with gusts in excess of 50mph. But much Better Weather across Western Areas of the uk, so while we still have this howling gale in the east, lighter winds for cornwall, devon, much of the midlands, wales, around the irish sea and probably the lightest winds in northern ireland, for a change, and western scotland. Here, the best of the weather with sunshine, but temperatures not spectacular. Around 12 degrees. You can get a sense of these arrows, the winds blowing out of the north. Just behind me, there is a change in the wind direction waiting, and that is going to warm things up a little bit into next week, but not in the short term. Saturday night into sunday will be chilly, in fact, with winds following light in the northwest of the uk. Here, we are in for a frost, whereas with that wind off the north sea in east anglia, it is going to be around 12 degrees early on sunday morning. So, sunday, we are still in between weather systems the remnants of the low in europe, weather fronts, milder weather waiting out there in the atlantic, butjust in the middle there, so that does mean lighter winds but some sunshine for places like birmingham, liverpool, glasgow. Not spectacular as far as the temperatures go, around 11 degrees in the north, but much better for plymouth and cardiff, around 17 celsius. Should feel relatively pleasant. So here is the forecast into monday, then. We start to see weather fronts coming off the atlantic. That also means a change in the wind direction, so no longer coming in from the north. In fact, you can see the winds lifting up into the higher latitudes there, but with that also comes a weather front so there will be some rain across northern and Western Areas. Ahead of this weather front, look at the temperatures. 18 in london, 17 in hull, 16 in newcastle. With a bit of sunshine, that should feel pleasant. Now, next week, we are anticipating the jet stream to make a beeline for us, also these undulations in the jet stream means there will be weather systems and low pressure spiralling across the atlantic so, yes, theyre going to bring milder weather, but with that, rain and wind as well. So this is an overview of the weather next week. You can see low pressure spinning up, weather fronts crossing the country. At times there could be very strong winds, but in between these weather systems, you can see gaps there and lulls in the wind and the rain. So here is a summary for next week. Weve got milder Atlantic Winds on the way with a succession of low pressures, meaning unsettled weather on the way. Bye bye. Tonight at ten, tributes are paid to the police officer, sergeant matiu ratana, shot dead in croydon, in south london. Hed been with the metropolitan police for almost 30 years. Now the force says its mourning a great loss. His colleagues knew him as a big guy. Big in stature, big in heart. Friendly, capable. A lovely man, highly respected by his colleagues. Fellow officers and friends have been paying their respects throughout the day. Hes a bloke that is just so passionate about what he does. He always has been. It doesnt matter if youre the most talented or the least talented person, hell treat you equal to that. He just wants to help people out, basically. Thats what matt was all about. A 23 year old suspect, who turned the weapon