These charts were built in 2004 by Eric Armstrong with voicing by Paul Meier, and require Flash to work. Now in 2020, most browsers are deprecating Flash, so they will soon stop working for most people. Back when the iPhone was first created (in 2007), Steve Jobs said that the iPhone wouldn’t support Flash. Now everyone is following suit. At present it is still possible to make them work, but who knows how long that will continue. I was able to get them working in Chrome using these instructions. I have no plans to change the charts over to a different technology. It would take a lot of work, as I would have to remake them from scratch. I feel that there are other sites with adequate versions available to use instead. One is ipachart.com — I don’t like it as well, but it does work on all devices, and has a very memorable URL! Another very interesting alternative is "World Sounds" at UBC. that shows video of the tongue in action, based on ultrasound superimposed on a video of the speaker. It’s as if you could see through their head and into their mouth! Similarly, Seeing Speech’s charts, available at https://www.seeingspeech.ac.uk/ipa-charts/?chart=4, are very helpful, along with the mega-vowel comparison in the companion site Dynamic Dialects, do a great job of visualizing the tongue action with the help of Ultrasound and MRI imaging. The one I like best with similar functionality is from the actual International Phonetic Association, https://www.internationalphoneticassociation.org/IPAcharts/inter_chart_2018/IPA_2018.html It has the added bonus of being both a symbol-sound chart (with 4 different voices, so you can hear 4 different, well-known phoneticians—including a woman—speak the sounds, AND you can use the chart to transcribe symbols in the top field on the page, which you can then copy and paste into a document. Note that the chart lives on in another form via Paul Meier’s IPA app for the iPhone, available here: https://apps.apple.com/ca/app/interactive-ipa/id873308318 . The Android version is available here: https://play.google.com/store/apps/details?id=com.paulmeier.InteractiveIPA IF THE PAGE IS STILL WORKING: These charts will link you to a Flash animation of the sounds and names of the IPA symbols. The consonant chart, because it has so many sounds/symbols is large (1.8 MB), while the vowel chart is quite small and will load quickly. The complete IPA is now available. Also, we have made available a chart which features all the vowel sounds of English, including all the diphthongs. The latest version of the IPA Alphabet was published in 1993 (updated in 1996) by the International Phonetic Association.