[SOUND] So it's week six. And as you know we're doing audio applications. The thing about music and interactive music is it's much more accessible than it's ever been. And now it's really quite good fun making interactive music applications that run on your iPhone, your iPad or your Android devices. Because there's so many people who want to use them. And I thought as well as showing you a really easy way of making a very,very cool scent, which is what we're going to do in a moment, and incorporating some of the stuff that Matt's been talking about I thought it'd be really good if I got want to my friends Martin. So come and talk to you so yeah basically this is Martin Roth, and he's director of research at a company called RJDJ. So RJDJ specialize in interactive audio applications on mobile devices. So yeah Martin can you tell us a little bit about some of the applications that you guys have made. >> Absolutely Mick thank you. Well our first app was back in 2008 and we started off with the original RJDJ app. And that was really one of the first times anyone on a mass scale had been able to interact with their music. You were able to download what we call the seen. It was basically an interactive user track onto you iPhone. And then interact with it either through the microphone or by tilting the phone around or the accelerometer would influence what you were listening to. Or perhaps, we can use the internet to find out things about what, what was going on around you for instance what the was like. >> Mm-hm >> So, you can imagine that you were walking down the street. And the music that you were listening to, would change tempo, according to how fast you were moving. So if you were moving slowly then the music might be, you know might also have a relatively low tempo, it might be a little bit relaxed, little chill. But then if you started running not only would the tempo pick up, but you could also change the energy in the music and it would become much more energetic, much more exciting, much more thrilling. >> So what kind of stuff did you do? Because I've seen some of the earlier apps as well. >> Yeah. >> But you've obviously done some quite large scale apps that have movie tie-ins. >> Yeah, that's right. One of the first movie tie-in apps that we did was called Inception, and that came out a the end of 2010, along with, alongside the DVD release of the film. The Inception app worked extremely well with the film, because the film is all about dreams, it was about going to dreams within dreams, and then losing yourself a bit in this, in the dream environment. And certainly one thing that the kinds of, the kinds of music that we were making at the time, one thing that it lent itself very well to, was a kind of dream, psychedelic experience. Worked incredibly well. Some people were in fact really worried that if they went to sleep with this thing on then they would never wake up. [LAUGH] It was a real customer complaint. [COUGH]. >> Yeah, certainly. But since then we have also done other movie tie-ins such as with the Dark Knight, and there are even some new ones coming on down the pipe line. >> That is really cool. So, so that's what main stream that interactive and reactive music there. >> Yeah, absolutely and I think it's something that will become even more mainstream in, in the coming years. The philosophy behind RJDJ is always been that for the last year many decades music has been frozen. We record music, we import it to some medium, whether it be vinyl, cassette, cd or these days mp3. But once you've made the recording of that music, it's done, it stays like that forever. And every time that you go back and listen to that piece of music, it's exactly the same. But with the technology that we have in the palm of our hands today, we can do so much more. Not only can we allow the, the musician to give their fans all of the different variations that they have in mind for a piece of music, but we can allow the fans to explore all of those different variations themselves. >> Right. >> For instance, you can imagine as with video games, where you can go and you are driving the plot, you are driving what happens and you can go and explore the scene of the. The video game developers have created. We would like to be able to give the same opportunity to musicians. >> Yeah right. It's interesting as well because the landscapes changing isn't it a little bit from a development Particularly in terms of audio. Because of the web audio API, so we're using it as part of this Coursera program instead of doing native coding for audio on the, on our devices. When you think about it, you think it's a good step forward? >> Oh, absolutely I love the web audio API. In the past we've done everything natively of course. We needed the performance. But now, that the web audio API's coming along and it's been standardized to some degree, and it certainly seen support across not only desk top browsers but also mobile browsers. >> Mm-hm. >> It gives it gives the developer the opportunity to develop their audio experience once. And truly be able to deliver it to many platforms without having to do a lot of work in order to adapt your code whether your experienced to any one particular platform. >> Yeah, and so I think we've found it really useful for delivering this program. >> Mm-hm. >> But also I think we've gotta kind of of there's an instinct about what's going to happen. Now that the web audio API is there. You can just sense this huge amount of music interactive music, and reactive music and music instruments on the web. This huge kind of number of applications just about to spill over >> Oh for sure. >> it's almost as if [INAUDIBLE] yeah. >> I would say right now people are really experimenting, they're trying to figure out what's possible like through this course. >> Mm. >> Once people become more comfortable with the technology, once they understand, what can they do with it? What are the limits? And then once they start pushing those limits, I'm extremely excited. >> Yeah. >> Extremely excited. >> Well, that's great. I really appreciate you coming down and talking to us. I know that you're very busy, and you got to shoot off now and talk to some other music types. But yeah. We are going to go through some of our some of our web audio API kind of based synthesis stuff now, and, and yeah, I just kind of of, we're just going to give you a quick burst of what it sounds like and then kind of, you know. Yeah, this is the one. So this is the app that we're going to be talking about. [MUSIC] So you get the picture. [MUSIC] So that's what we're working on today. >> Mick, thank you very much for inviting me. >> That's great. >> You're a true musician, gentleman and scholar. >> [LAUGH] Yeah, well, that's what they all say. [MUSIC]
