This isn’t made explicit on the wavesurfer site but can quickly be deduced by inspecting their demo. Since downloading the file can take a few moments (depending on it’s size) it makes sense to include a progress indicator. Since it uses data from the audio file to generate the waveform, the file first needs to be downloaded before the waveform can be drawn using HTML5 Canvas. Wavesurfer makes use of the Web Audio API now generally available in most modern browsers. I did however run into a few issues, and since not everything is immediately obvious from the demos provided, I thought it might be worthwhile to collect a few notes from my journey through implementing the player on my site. Setting up the various options is demonstrated on their site, and I quickly had some examples up and running. There are also plugins for adding regions, annotations, timelines, and even a spectrogram. My searches led me to Wavesufer.js, a JavaScript player with a waveform overview that can be tailored to look something like SoundCloud’s, should one so wish. 3 Nonetheless, it was SoundCloud’s rude decision to slap a big orange banner across their mobile embeds that pushed me to get on with finding a self-hosted alternative – one that would ideally also have native audio fallback should JavaScript be unavailable. My main reason for moving away from (SoundCloud) embeds though, has been the desire to make sure that the core content of my website is hosted on the site itself. Jeremy Keith has also written about the here and now aspect that SoundCloud is so well suited to, as opposed to the time-shifted nature of podcasts. When it comes to musical compositions there are however many cases in which it is handy to have an overview of the form of a piece. It doesn’t look the same in all browsers, but I don’t find that an issue. Fix a problem of Web Audio not playing in Safari on initial load (749) 1.2.3 () Add a 'waveform-ready' event, triggered when waveform is drawn with MediaElement backend (736) Add a 'preload' parameter to load function to choose the preload HTML5 audio attribute value if MediaElement backend is choosen (854) 1.2. 1 A simple native player 2 is less distracting and makes the file easier to huffduff or download. A long stream of podcast speech, for example, doesn’t typically benefit much from being presented with a waveform. I’ve come to realise that it’s not always that one needs to see the the form of the audio.
It’s quicker to load and there aren’t any cookie notices to tug at you. the past two years I’ve been leaning towards simply using a native HTML5 audio player rather than embedding everything via SoundCloud on my site. Instead putting this in the topmost template will help control the logic. IR can re-run unexpectedly and can create weird edge case bugs. If so I wouldn’t do this in the router… that ends up being really messy. Vijay Iyer specified the original design.
#WAVESURFER PRELOAD AUDIO CODE#
WaveSurfer is a from-scratch rewrite of Ephus developed by Janelia's Scientific Computing group, and shares no code with Ephus. So i’m not sure I 100% follow the requirements but it sounds like you want to load 1 mp3 from wavesurfer right away and when that’s loaded, then start loading the others that might be used? WaveSurfer supplants an earlier application, Ephus, for electrophysiology and similar data-acquisition tasks. What is my best bet in preloading these assets? Has anyone used PreloadJS with Meteor yet? Is that something I should try out or are there better alternatives? Is there a way to run a ‘waitOn’ for media files (and show a spinner while loading)? I’m not convinced that I need a CDN for this app as the files aren’t significantly large –. I know of the existence of waitOn-lib and meteor-preloader packages, but those are for external JS and CSS libraries. I saw this on StackOverflow but there’s not answer there. What I want to do is preload some of these files – some of the larger images that I know are going to be needed and some of the.
However, it takes a few seconds to load the song (and in turn the waveform).
I’ve been using wavesurfer.js to load my.
I’ve been working on a meteor webapp that uses external media files (some large images and some.
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