![]() This is simple to say, but analyzing a voice, extracting characteristics, and creating an accurate mathematical This is the basis for verifying identity through voice. Representation that is useful for comparing voices, is a highly complex task. ID R&D’s voice biometric engineĮmploys the latest signal processing and artificial intelligence technology to accomplish this goal. The first step is to process a voice sample and convert it into what we call a “template.” This template isĪ one-way transformation of the voice sample. It is not possible to re-create the original sample from the template. This new template is conceptually a stronger representation of a person’s voice because it combines multiple Samples of the person saying the passphrase, and then you merge the templates with the output being yet again a new Of a person’s voice when using a voice passphrase that is always the same, you create three templates from three voice For example, to create a stronger average representation ID R&D’s engine also has the ability to merge templates. We often call the new merged template a “voiceprint”, analogous to getting multiple samplesįinally, ID R&D’s voice biometric engine also compares templates. To verify identity, you compare a new templateĪgainst a known voiceprint template. If the match is high, it’s likely the same person. This SDK drastically reduces complexity for the developer and provides these capabilities to create, merge,Īnd compare templates through API method calls. Swift avrecorder only recording 1 second code#.Swift avrecorder only recording 1 second software#.Swift avrecorder only recording 1 second how to#.i use only because it was the first i tried, it was pretty easy for me to manage and pretty painless for my beta testers. could this work for some reason on your devices but not on the failing devices? if so, you could be asking to record in a top level directory when you did not mean to.Ĭan you get the testers you have onto a "beta" list? sign up for something like TestFlight or Hockey Kit, get one or more of the users with a failure to record to also sign up, and then upload a beta of your app with diagnostics that put a dialog on screen with the resultant "error". this could cause the filename to be simply ".caf". have you tested by playing with the verseGUID, bRecordReference values? maybe your devices never have a bad verseGUID, but the devices on which no recording happens have a nil/empty verseGUID. The url passed to initWithURL could be malformed: The real question you want answered seems to be: what would cause the recording not to occur?ĪudioRecorder could be nil or audioRecorder prepareToPlay could be returning NO. It could be many things not having to do with the recording settings. Int errorCode = CFSwapInt32HostToBig()",, (char*)&errorCode) NSString *fileName = documentsDirectoryPath], fileName]] ĪudioRecorder = initWithURL:url settings:recordSettings error:&error] NSDictionary *recordSettings = [NSDictionary dictionaryWithObjectsAndKeys: Are any of my settings off? App requires iOS5 and uses ARC. I've had trouble finding sample settings for AAC format. This isn't happening on our test devices, but the reports show that the problem is that prepareToRecord is returning NO. ![]() ![]() I've got a live app with an estimated 15% of users reporting that the record feature is not working.
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