KnowBrainer Speech Recognition
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Topic Title: Dragon Recorder App released
Topic Summary: Nuance releases Dragon Digital Recorder App for iPhone
Created On: 10/20/2011 10:59 AM
Status: Post and Reply
Linear : Threading : Single : Branch
 Dragon Recorder App released   - Jhawk - 10/20/2011 10:59 AM  
 Dragon Recorder App released   - Chucker - 10/20/2011 11:13 AM  
 Dragon Recorder App released   - Jhawk - 10/20/2011 12:08 PM  
 Dragon Recorder App released   - Chucker - 10/20/2011 12:28 PM  
 Dragon Recorder App released   - Jhawk - 10/20/2011 01:06 PM  
 Dragon Recorder App released   - Lunis Orcutt - 10/20/2011 02:40 PM  
 Dragon Recorder App released   - Jhawk - 10/21/2011 12:32 AM  
 Dragon Recorder App released   - Chucker - 10/21/2011 11:24 AM  
 Dragon Recorder App released   - Lunis Orcutt - 10/21/2011 12:12 PM  
 Dragon Recorder App released   - pmaddern - 12/16/2011 01:47 PM  
 Dragon Recorder App released   - umdnjay - 03/02/2012 01:09 PM  
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 10/20/2011 10:59 AM
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Jhawk
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Nuance announced a digital recorder app for the iPhone:

http://www.nuance.com/dragon/recorder-app/index.htm

 

I don't have any reviews at this point.  Looks easy enough though. 



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 10/20/2011 11:13 AM
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Chucker
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Jhawk,

Looks very interesting and promising. Also, there's a lot more coming from Nuance relative to using your iPhone or Android phone.

The only caveat is that you need to be sure to read the fine print, as well as set it up properly. Also, unless you use a noise canceling headset with your iPhone, don't be expecting to get high recognition accuracy dictating and transcribing wirelessly in an airport terminal or crowded train station. It ain't going to happen!!!

Chuck Runquist
Technical Project Manager
VoiceTeach LLC
Home of VoicePower®: We don't make speech recognition, we make it better!

"If the automobile had followed the same development cycle as the computer, a Rolls-Royce would today cost $100, get a million miles per gallon, and explode once a year, killing everyone inside." -- Robert X. Cringely



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 10/20/2011 12:08 PM
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Jhawk
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I had a chance to try it in my office and was quite pleasantly surprised at the accuracy without any additional training.  The system works quite well.  We'll see how it works in the car without and, if needed, with a noise cancelling microphone.

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 10/20/2011 12:28 PM
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Chucker
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Jhawk,

The problem with the built-in iPhone microphone is that it's omnidirectional vs. unidirectional. That simply means it picks up any noise from anywhere, and since it's not noise canceling, you're going to get a lot of extraneous noise in your recordings if you're dictating even in a moderately noisy environment, such as people talking in the background, doors slamming, fan noise, telephones ringing, air conditioners, etc.). As far as dictating in a high noise environment, such as a crowded train station (i.e., Grand Central Station in New York) or an airport terminal area, you will need a noise canceling microphone. I tested it and it simply doesn't work in that environment. All your transcriptions will come out mostly garbage and/or nonsense.

Chuck Runquist
Technical Project Manager
VoiceTeach LLC
Home of VoicePower®: We don't make speech recognition, we make it better!
Line "If the automobile had followed the same development cycle as the computer, a Rolls-Royce would today cost $100, get a million miles per gallon, and explode once a year, killing everyone inside." -- Robert X. Cringely



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 10/20/2011 01:06 PM
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Jhawk
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Do you think the Olympus ME3 would be compatible with the iPhone and do the job or will it take a more expensive solution?

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 10/20/2011 02:40 PM
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Lunis Orcutt
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We believe that the iPhone requires a specialized 3 way ring plug while microphones like the Olympus ME52W only include a one-way ring.

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 10/21/2011 12:32 AM
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Jhawk
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Right and right.  The accuracy decreased tremendously when dictating in the car.  The iPhone does take a specialized 3-ring microphone.  I haven't tried the stock one with the earphone, but can only guess about the accuracy.  The trick will be to find a proper noise-reducing microphone for the iPhone.  My guess is cost will exceed the price of many stand-along digital recorders - unless there is a clever adapter somewhere so something like the ME52W can be used.  Any possibility of offering such a set?

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 10/21/2011 11:24 AM
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Chucker
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Quote:
Right and right. The accuracy decreased tremendously when dictating in the car. The iPhone does take a specialized 3-ring microphone. I haven't tried the stock one with the earphone, but can only guess about the accuracy. The trick will be to find a proper noise-reducing microphone for the iPhone. My guess is cost will exceed the price of many stand-along digital recorders - unless there is a clever adapter somewhere so something like the ME52W can be used. Any possibility of offering such a set?

Jhawk,

Basically, you're trying to describe oranges in terms of pomegranates. That is, what were basically talking about our RCA plugs and jacks. RCA (Radio Corporation of America) invented/developed the quick connect/disconnect concept electronic cables way back in the dark ages. These have become standardized over the years. While there are many types, the ones that were referring to here are those that are generally used with microphones. There are basically two sizes: (a) 3.5 mm, and (b) 2.5 mm. Most cell phone input jacks and output plugs are 2.5 mm. These are the smaller size that are generally used with wireless telephones and cell phones. The 3.5 mm input jacks and output plugs are generally used with your PC audio and microphone input/output (soundcards).

What you're referring to as 3 ring plugs are stereo plugs. That is they have two nonconductive plastic separators. Single ring plugs are Mono plugs. That is they have only one nonconductive plastic separators. All electronic circuits use ground as the negative side of the circuit. The positive side of the circuit consists of either a wire connected to the electronic component, which is connected to ground, which completes the electronic circuit and allows current to flow through the component. In other words, all electronic components must have a complete circuit in ordered for current (electrons) to pass through and power any given component. So, the part of the plug at the very Tip of the plug (i.e., the nipple so to speak) is the ground circuit. On a stereo plug, the two cylindrical parts that are separated by the nonconductive plastic ring on the positive side. Where there are two rings, each cylindrical section represents one side of the stereo component for input.

Most microphones have a single microphone element. If an audio input device is capable of stereo output, then the microphone element basically connects to both cylindrical sections so that in a stereo plug the same signal is passed to both channel A and channel B either via a single wire with a shunt across both channels or by way of two wires, which carry the same output signal but are connected to Channel A and Channel B separately. If you were to be able to look at the wiring to the output plug you would see that the black wire connects to the central post, or ground, and either one red or white wire connects to both Channel A and Channel B, or you would have a white wire and the red wire with one connecting to a Channel A and the other connected to Channel B.

In essence, most audio input jacks accept stereo plugs even though the same signal is being passed through each of the cylindrical sections that are separated by the two plastic nonconductive separators. A very few only accept a Mono plug. Your iPhone and your PC audio input jacks are stereo even though the output signal from the microphone is basically the same signal (monaural). The only problem in your case is whether you need a 2.5 mm plug with the iPhone or whether it will accept a 3.5 mm plug, which is the standard microphone plug. If the iPhone requires or 2.5 mm plug, then you can go to RadioShack and get a 3.5 mm to 2.5 mm adapter plug. In that way you can use any standard speech recognition microphone, or should be able to do so.

The only time that a standard microphone is actually a stereo microphone, is in the case where two microphone elements are used instead of one. If a single microphone element is used, then it is a Mono element wherein the same signal is passed to each of the two stereo channels.

Chuck Runquist
Technical Project Manager
VoiceTeach LLC
Home of VoicePower®: We don't make speech recognition, we make it better!

It is of interest to note that while some dolphins are reported to have learned English -- up to fifty words used in correct context -- no human being has been reported to have learned dolphinese. - Carl Sagan (1934 - 1996)



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 10/21/2011 12:12 PM
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Lunis Orcutt
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We believe that the iPhone takes a 3.5 mm plug (although we could be wrong) but unfortunately, the Olympus ME52W microphone isn't really a noise canceling microphone, even though it claims otherwise. The ME52W microphone would probably be no better than what you already have. Being able to dictate wirelessly with your iPhone is a cute advertising gimmick that probably falls a little short on substance. We wouldn't recommend using it for serious work because at best, you're introducing 1 more element into your speech recognition chain which is 1 more thing that can go wrong.

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 12/16/2011 01:47 PM
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pmaddern
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Until relatively recently, we sold a noise cancelling headset plus iPhone adapter cable combo. (The iPhone has a proprietary microphone in port which will not accept a standard 3.5 mm microphone Jack). In my testing, it gave extremely high accuracy with the iPhone Dragon Dictation app (as well as extremely high accuracy within the transcribed iPhone recording transferred to the PC) with extremely loud background noise. For some reason, we stopped listing it. I think it could have got lost when we migrated our online shop to a new online shop system. But now with the increasing use of the iPhone for digital dictation and the Siri voice assistant on the iPhone 4S, we will probably re-list the combo headset microphone and adapter cable soon.

Bear in mind that the recently introduced Dragon Recorder app can only transfer recordings to your PC for transcription within Dragon via Wi-Fi. It will not work over a 3G connection.

We use an app that will allow a Dictator to email high-quality recordings from their iPhone over 3G and achieve high word recognition accuracy in Dragon.

Peter



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 03/02/2012 01:09 PM
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umdnjay
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is anyone using the "dictamus" app on iphone for digital transcription uploaded to dragon?  haven't had a chance to play with it much, curious about others' experience.

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