Shift operator [modified] - C# Discussion Boards

mudrugger18-Dec-09 14:17

18-Dec-09 14:17

Thanks for your reply.
I want a user to be able to improve the speech engine's recognition capability over time. In my application I want a user to be able to start using it immediately. The user will then be able to review what the engine's output was and correct it. The application will then use the corrected text along with the original wav file to teach the speech engine to improve it's transcription ability over time for a specific user.
I hope that makes sense. Please let me know if you need some clarification.

Re: SAPI Training From Wav File

Migounette19-Dec-09 7:01

Migounette

19-Dec-09 7:01

In fact in C# the speech recognition is not directly based on the SAPI interface, there is an inermediate level.

This code will not help to train... !!! I didn't find the interface based on its guid (ISpTranscript) in the System.Speech

SpeechRecognitionEngine engine = new SpeechRecognitionEngine();
engine.SetInputToWaveFile("MyWaveFile.wav");
engine.LoadGrammar(new DictationGrammar());
engine.RecognizeAsync(RecognizeMode.Multiple);

engine.SpeechRecognized += new EventHandler<SpeechRecognizedEventArgs>(engine_SpeechRecognized);

// In order to know when the wave is finished
engine.AudioStateChanged += new EventHandler<AudioStateChangedEventArgs>(engine_AudioStateChanged);

Hope it helps...

Re: SAPI Training From Wav File

mudrugger21-Dec-09 2:17

mudrugger

21-Dec-09 2:17

Hi Thanks for your help.
I also did not find the interface for ISpTranscript in the System.Speech assembly or directly in the SpeechLib.dll.
However, I finally tried it out in C++ and was able to find the interface for it.
It is declared in the sapi.h header file and it could be instatiated using the CoCreateInstance method.

Since I was not able to find any information on it anywhere for over a month, I will go out on a limb and say that ISpTranscript can not be instantiated in C# for training the speech engine with your own custom string. I hope this educated opinion will stop someone else from searching for an answer on the internet for too long. If it can be done, please prove me wrong Smile | :)

When coding in C++ you will also need to update sphelper.h in a few places in order to get it to compile.
See this link for help:
http://social.msdn.microsoft.com/forums/en-US/vcgeneral/thread/38085678-e54c-4923-b817-3790b3634798/[^]

The C++ code for getting the ISpTranscript interface to instantiate could be found here:
http://msdn.microsoft.com/en-us/library/ms717071(VS.85).aspx[^]

Re: SAPI Training From Wav File

taneem78511-Mar-10 3:30

taneem7851

1-Mar-10 3:30

Hi Mudrugger,
Thank you very much for all the info. I have also started working on exactly same kind of application features initially on C# and later moved to C++ after your posting. I have managed to recognize from a wave file and produce the text output. However, the accuracy isn't good and for which I am trying to buildup the training module. I believe I have done most the things required by training module like--> setTrainingstate(1,1), Add CFG grammer for the input text, appendtranscript the text with the wave file, activate the diction and complete the training. I even tried running the loop 100 times. However, no effect is taking place. Were you able to crack this down? If yes, could you kindly provide me some insights, help of any sorts? It would be a great help. Many thankx.

TKM

Re: SAPI Training From Wav File

mudrugger1-Mar-10 8:15

mudrugger

1-Mar-10 8:15

Sorry, I do not have access to that code right now so I can't copy and paste it but I'll be willing to share anything I can.
Are you retaining the audio (ISpRecoContext I believe)?
Also, which ISpStream are you appending the transcript to? You should not append it to the original wave file. You need to create a new Stream, bind it to the ISpObjectToken->GetStorageFileName method and copy the retained audio into it and append it to the transcript there. This will tell the SR engine where to go look to do the training.
I based the code on the psuedo code from another forum, (Sorry code project Smile | :)

.
http://stackoverflow.com/questions/299799/acoustic-training-using-sapi-5-3-speech-api[http://stackoverflow.com/questions/299799/acoustic-training-using-sapi-5-3-speech-api]

Re: SAPI Training From Wav File

aidesigner30-Nov-11 17:21

aidesigner

30-Nov-11 17:21

mudrugger,
Thank you for your input it stopped my endless searching. It would be extremely helpful if you could post your C++ training routine (I am C# developer). How do you know if the training helped? Also does the training specifically help the recognizer understand just the words trained?

Thanks again,
aidesigner

Color dropdown for new Toolstrip [modified]

Jim Crafton18-Dec-09 4:08

Jim Crafton

18-Dec-09 4:08

Anyone know of a custom drop down item that works with the ToolStripContainer and provides a color drop down button? I've looked here on CP and was surprised that there weren't any articles, or I couldn't find any so far.

Never mind, found it:

Office 2003 Color Picker[^]

¡El diablo está en mis pantalones! ¡Mire, mire!
SELECT * FROM User WHERE Clue > 0
0 rows returned
Save an Orange - Use the VCF!
Personal 3D projects
Just Say No to Web 2 Point Blow

modified on Friday, December 18, 2009 12:33 PM

Shift operator [modified]

thungphan18-Dec-09 3:23

thungphan

18-Dec-09 3:23

I'd like to convert an integer to a byte. Then going through some process steps (i don't know how to do and need your help), finally when apply (b<<24) i'd like it return to the integer's value before. How I can do that?

int temp; // temp has a arbitrary value
byte b;
// Processing steps with b
//...
//...
// to finally when apply (b<<24)
int result=(b<<24);//expected value equal to temp.

Thank you so much!

modified on Friday, December 18, 2009 10:55 AM

Re: Shift operator

thungphan18-Dec-09 4:30

thungphan

18-Dec-09 4:30

I did following but result is 0, not 5.

int temp=5;
byte b=(byte)(temp>>24);
int result=b<<24;
Console.WriteLine(result);

Could you post some code? Thanks your reply!

Re: Shift operator

Rob Philpott18-Dec-09 4:42

Rob Philpott

18-Dec-09 4:42

That's because your shifting all your bits to the right and off a cliff.

int temp = 5;
int t1 = temp << 24;
int t2 = t1 >> 24;
Console.WriteLine(t2);

Regards,
Rob Philpott.

Re: Shift operator

thungphan18-Dec-09 4:54

thungphan

18-Dec-09 4:54

I'm sorry. My question is not correct. I modified it. Please read it again and help me!.
Thanks so much!

Re: Shift operator

harold aptroot18-Dec-09 4:55

harold aptroot

18-Dec-09 4:55

What you want is in conflict with what you want. For starters there is no way to convert "any int" to a byte (proof: there are more possible values for an int than for a byte)

What are you trying to do with this calculation? Maybe we can suggest an alternative?

Re: Shift operator

Luc Pattyn18-Dec-09 5:09

Luc Pattyn

18-Dec-09 5:09

Hi,

you probably are confusing two things:

1.
assuming b is unsigned or positive, b<<24 is an attempt to generate a larger number, in fact it is equivalent to a multiplication by 2^24 (which might overflow, i.e. loose bits shifted out at the high end, and therefore could result in zero). Anyway, it is a numeric or mathematical operation. So is 5>>24 which will result in zero since all bits get lost at the low end, as others have said already.

2.
multi-byte variables (such as int) are stored in memory in one of two ways:
"big endian" = the most significant byte comes first (i.e. at the lowest address)
"little endian" = the least significant byte comes first.
Intel processors (and some others too) implement the little-endian convention. Other processor families, and some networks and protocols use big-endian (e.g. the administrative information used on Ehternet networks).

Both issues are unrelated. If you want to operate on values/numbers, look at (1). If you want to operate on memory bytes, don't look at (1), use the BitConverter class instead (or a fake "union" construction, with a struct and explicit offsets).

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

I only read code that is properly indented, and rendered in a non-proportional font; hint: use PRE tags in forum messages

modified on Friday, December 18, 2009 11:44 AM

Re: Shift operator

thungphan18-Dec-09 17:05

thungphan

18-Dec-09 17:05

byte b0=GetByte(); // after these four commands
byte b1=GetByte(); // b0, b1, b2, b3 have values
byte b2=GetByte(); // 
byte b3=GetByte(); //
int vr= + b1;
if ((b0<<8+b1)==0x4F42)
{
    int length;
    if (littleEndian)
       length=(b3<<24) + (b2<<16) + (b1<<8) + b0;
    else
       length=(b0<<24) + (b1<<16) + (b2<<8) + b3;
}

Now I have a value of length variable and to convert inverse direction. I'd like to gain b0, b1, b2, b3.
And those gained b0, b1 must ensure when apply (b0<<8) + b1 will be equal to 0x4F42 again.
That's what I want to. Before i try to simplify my problem but unfortunately i made it difficult to understand for you.
Please help me! Thank you so much!

Re: Shift operator

harold aptroot19-Dec-09 3:29

harold aptroot

19-Dec-09 3:29

Well if that's all then we gave you the answer countless times, right?

Two ListViews

Tagamoga18-Dec-09 2:38

Tagamoga

18-Dec-09 2:38

Hello.

I have got two ListViews in one Form.

When I select one DataSet in the first one, the second one will be filled with the correct data. Now I shall allow to select a dataset in the second one. But, when I do this, the selection in the first one is canceld. How can I awoid this deselection? Both seletions should be shown.

Regards, Taggi

How do you know, that Tagamoga has been assimilated by the borg?
"Recistunce ist fiutille."
Sorry for violating the english language.

Re: Two ListViews

benjymous18-Dec-09 3:14

benjymous

18-Dec-09 3:14

There's a property on the listview - I can't remember what it's called, but it's something like "Always show selection". The default listview behaviour is to hide the selection highlight when the control loses focus (which is what happens when you click in the second control)

Help me! I'm turning into a grapefruit!
Buzzwords!

Re: Two ListViews

Tagamoga18-Dec-09 3:29

Tagamoga

18-Dec-09 3:29

Thank you very much!

The Property is called "HideSelection" and has to be set on "false".

Thanks!

How do you know, that Tagamoga has been assimilated by the borg?
"Recistunce ist fiutille."
Sorry for violating the english language.

zedgraph

jashimu18-Dec-09 2:16

jashimu

18-Dec-09 2:16

Hi All,
Is anyone happen to know zedgraph. I am working on it for a while but can not figure out how to set X-axis value as hour.

thanks.

Message Closed

18-Dec-09 2:50

stancrm

18-Dec-09 2:50

Message Closed

modified 23-Nov-14 7:16am.

Re: zedgraph

jashimu18-Dec-09 4:09

jashimu

18-Dec-09 4:09

Hi stancrm, thanks for your help.
I have tried all of this but did not what I want.
what I want is that xaxis should show entire day as hour. let say
if from 12am to 11 pm and each minortic or majortic should show individual hour.
this what I am doing. I also know that xaxis depends on x value.If you can give me a hint
how do I frame time for the entire day as hour.

code>// Set the XAxis to date type
myPane.XAxis.Type = AxisType.Date;
// X axis step size is 1 day
myPane.XAxis.Scale.MajorStep = 1;
myPane.XAxis.Scale.MajorUnit = DateUnit.Hour;
myPane.XAxis.Scale.Format = "h tt";
myPane.XAxis.Scale.Min = hList[0].X - 1;

thanks again.

Hide database file from user

NarendraSinghJTV18-Dec-09 1:53

NarendraSinghJTV

18-Dec-09 1:53

codeproject helped me many times
and i m thankful for that.

There is another question
when we create setup for windows application. can we set any property to hide the application database from the user. I want to hide the mdf file from the user.

thanks for all the reply in advance

Regards
Narendra Singh
(Jindal Tech Ventures)

Re: Hide database file from user

Ashfield18-Dec-09 2:02

Ashfield

18-Dec-09 2:02

No more than you can hide any other file - you could set the hidden attribute, but thats about all. Why not use encryption within your database?

Bob
Ashfield Consultants Ltd
Proud to be a 2009 Code Project MVP

Re: Hide database file from user

NarendraSinghJTV18-Dec-09 2:33

NarendraSinghJTV

18-Dec-09 2:33

can we define the hidden property at the time of creating setup project and how can i use the encryption in database
if u please define some more it will be very helpfull for me

Regards
Narendra Singh
(Jindal Tech Ventures)

Re: Hide database file from user

Saksida Bojan18-Dec-09 3:57

Saksida Bojan

18-Dec-09 3:57

The hidden attribute is a file atribute. It hides files from view for simple users. However more advance users uses 3rd party file manager or uses explorer setting "Show All Files". That settings shows files with Attribute: Hidden and System atribute.

One whay to fool users is to use .mdf database with custom extension (something.Dat).

If you realy want to prevent users from using your database, use on the fly encryption/decryption. I do not recommend to use hide attribute.
You could use windows folder and put somewhere or Use custom partition and use it to store database there. The second option is not recommended, because it is too hard and too long to successfully use it.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.