1/7/2024 0 Comments Sonic visualiser youtubeBut this brings up the question of why? Many people have suggested that the fine temporal resolution of oversampled audio might be perceived. He then subjected the results to detailed thematic analysis to uncover best practices and insights into the topic.Ģ:45-4:15 pm there is a workshop on ‘ Perception of Temporal Response and Resolution in Time Domain.’ Last year we published an article in the Journal of the Audio Engineering Society on ‘ A meta-analysis of high resolution audio perceptual evaluation.’ There’s a blog entry about it too. The research showed very strong evidence that people can hear a difference between high resolution audio and standard, CD quality audio. Dave surveyed 10 award winning mix engineers to find out how and why they do subgrouping. On Saturday May 20th, 9:30-12:30, Dave Ronan from the team here will be presenting a poster on ‘ Analysis of the Subgrouping Practices of Professional Mix Engineers.’ Subgrouping is a greatly understudied, but important part of the mixing process. These are some of the events that we will be involved in or just attending, but of course, there’s plenty else going on. I thought I’d give you an idea of some of the highlights of the Convention. The attendees fit loosely into five categories: the companies, the professionals and practitioners, students, enthusiasts, and the researchers. These conventions are quite big, with thousands of attendees, but not so big that you get lost or overwhelmed. After all, this blog is brought to you by the Audio Engineering research team within the Centre for Digital Music, so its a natural fit for a lot of what we do. This is an event where we always have a big presence. The next Audio Engineering Society convention is just around the corner, May 20-23 in Berlin. And there is a second frequency that appears a little later, starting at around 720 Hz, falling all the way to 250 Hz, then climbing back up again. There’s more analysis than shown, but the most striking feature is that the same frequencies are present in both signals! There is a strong, dominant frequency that linearly increases from about 650 Hz to just over 1 kilohertz. Frequency is on a log scale (otherwise all the detail will be crammed at the bottom) and the peak frequencies are heavily emphasised (there’s an awful lot of noise). Here’s the spectrograms of the two files, cold water on top, hot water on bottom. But you have to be careful because if you don’t choose how to visualise it carefully, you’ll easily overlook the interesting stuff. Spectrograms are very good for this sort of thing because they show you how the frequency content is changing over time. So I put the two samples above through some analysis using Sonic Visualiser. Most of the arguments are half-formed and involve a fair amount of handwaving. No one actually analysed the audio. According to one of the founders of Condiment Junkie, “more bubbling in a liquid that’s hot… you tend to get higher frequency sounds from it,” but further discussion on NPR noted “Cold water is more viscous… That’s what makes that high pitched ringing.” Are they both right? There is even a fair amount of discussion of this on physics forums.īut its all speculation. The youtube video simply states ‘change in the splashing of the water changes the sound that it makes because of various complex fluid dynamic reasons,’ which really doesn’t explain anything. The academic paper did not really discuss this. However, there wasn’t really a good explanation as to why we hear the difference.
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