Work on the Amazon Echo began in 2011, known as 'Project D'.

Additionally, the Alexa voice service is available to be added to other devices, and Amazon encourages other companies' devices and services to connect to it. Īmazon initially limited the first-generation Echo to Amazon Prime members or just by invitation, but it became widely available in the United States in mid 2015, and subsequently in other countries. The device represented one of its first attempts to expand its device portfolio beyond the Kindle e-reader. It can also control several smart devices, acting as a home automation hub.Īmazon started developing Echo devices inside its Lab126 offices in Silicon Valley and in Cambridge, Massachusetts as early as 2010. The features of the device include voice interaction, music playback, making to-do lists, setting alarms, streaming podcasts, and playing audiobooks, in addition to providing weather, traffic and other real-time information. Users may change this wake word to 'Amazon', 'Echo', ' Computer', as well as some other options. Echo devices connect to the voice-controlled intelligent personal assistant service Alexa, which will respond when a user says 'Alexa'. Amazon EchoĪmazon Echo, often shortened to Echo, is an American brand of smart speakers developed by Amazon. Any help would be greatly appreciated.This article is about the American brand of smart speakers developed by Amazon. I'll be happy to add any more information if required. I've checked the class file 'AWS4Signer', and the method 'presignRequest' does exist, so I'm confused as to why I'm getting this error. I'm using AWS version 1.10.12 (latest), but I've also tried several other previous versions only to get the same error. TextToSpeech.java:49 being: ('Requested URL: ' + speechCloud.getCreateSpeechUrl(createSpeechRequest)) My problem is that when running even the sample Java application I get the following error: Exception in thread 'main' : 4Signer.presignRequest(Lcom/amazonaws/Request Lcom/amazonaws/auth/AWSCredentials Ljava/util/Date )VĪt .IvonaSpeechCloudClient.prepareRequest(IvonaSpeechCloudClient.java:292)Īt .IvonaSpeechCloudClient.prepareRequestForGetUrl(IvonaSpeechCloudClient.java:270)Īt .IvonaSpeechCloudClient.getCreateSpeechUrl(IvonaSpeechCloudClient.java:159)Īt (TextToSpeech.java:49) I have started using IVONA TTS and AWS is a dependancy of it, so I have also imported that to the project.

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