ANC 750 and USB-SA
Printed From: MSSpeech-Forum
Category: Windows™ Speech Recognition Forums
Forum Name: New Users & General Questions
Forum Description: Ask questions, give and get answers.
URL: https://www.msspeech-forum.com/forum_posts.asp?TID=211
Printed Date: 10/Nov/2024 at 4:06pm
Software Version: Web Wiz Forums 12.02 - http://www.webwizforums.com
Topic: ANC 750 and USB-SA
Posted By: ed
Subject: ANC 750 and USB-SA
Date Posted: 22/Feb/2011 at 8:06am
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[system: Dell Inspiron 530, Pentium E2200 2.4 GHz, 4 G RAM] Hi, I hope this question makes sense. I usually do WSR with input via an Andrea Supermax array and no output monitoring. But sometimes (as when I need to hear pronunciation of new words or when I'm listening to something else), I'll plug an ANC-750 into the USB card's output jack. This generally seems to work OK. But I'm wondering, Does plugging and unplugging the headset output jack reduce the SR accuracy? It sometimes seems to, but I can't be sure. I have found, though, that if I unplug & replug the sound card itself, the SR takes a while to come up to snuff. Would changing the output have the same effect? - ed |
Replies:
Posted By: mmarkoe_admin
Date Posted: 22/Feb/2011 at 2:36pm
WSR has a problem holding the audio levels. That is why we built into the WSRToolkit the Tune Microphone feature.
Also, the microphones you are using use completely different technology. The Superbeam which we consider an inferior microphone to the ANC-750, has a stronger pickup signal because it is further from your mouth. You require 2 different volume level settings if you are going to use each. Try running Setup microphone for each. As mentioned, the settings may fluctuate due to a fault in Windows Audio.
Marty
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ed wrote:Posted By: ed
Date Posted: 22/Feb/2011 at 4:24pm
Your comment about the Superbeam is interesting. With training I've found it really accurate (again I don't have much experience with different rigs). I usually use it 'cause my place is generally quiet & I like not beeing encumbered by cables. But once in a while I'll plug the ANC-750 headphones (not the mic) into the USB-SA. I was just wondering if putting that load on the output of the USB-SA could have an effect on the input. It probably doesn't, but I'm curious, since changing the *input* (the mic) clearly does degrade the performance of a profile. I also recall noticing that with the ANC-750 diving the WSR through the mainboard audio (rather than through the USB-750) the recognition got degraded every time I unplugged the mic. Maybe that was before the WSR had been sufficiently trained. In any case, WSR is certainly cranky at first. After running for a long time, it's certainly much better. - ed |
Posted By: mmarkoe_admin
Date Posted: 23/Feb/2011 at 6:15am
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Perform simple test. Run Setup Microphone with Superbeam and read a paragraph of at least 100 words. Repeat with ANC-750 and compare the number of errors.
There is no “load” factor on an ADC (Analog Digital Converter = Sound Card = USB pod). They simply convert analog speech to digital bits and bytes the computer understands. You can simply create a separate profile for each microphone. I frankly just adjust audio settings and use the same user profile.
The reason we sell USB sound pods is onboard sound cards are often unshielded or poorly shielded. These will pickup electronic noise from within the computer and distort the audio signal. Marty Markoe, eMicrophones, Inc. Microsoft MVP |
Posted By: ed
Date Posted: 24/Feb/2011 at 8:15am
| Thanks for the help, Marty. I think my posts complicated a simple question. Being confused by the mention of "adapters" on the Andrea website, I was concerned that the ANC-750 might not be compatible with the USB-SA. Evidently it is, and all's well. - ed |
Posted By: mmarkoe_admin
Date Posted: 24/Feb/2011 at 10:41am
Yes, USB-SA, commonly known as a USB sound pod, will work with every analog input SR microphone we know of.
Marty
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