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  • Properly trimming PCM data from a ByteArray

    - by Lowgain
    I have a situation where I need to trim a small amount of audio from the beginning of a recorded clip (generally somewhere between 110-150ms, it is an inconsistent amount). I'm recording in 44100 frequency and 16 bitrate. This is the code I'm using: public function get trimmedData():ByteArray { var ba:ByteArray = new ByteArray(); var bitPosition:uint = 44100 * 16 * (recordGap / 1000); bitPosition -= int(bitPosition % 16); //should keep snapped to nearest sample, I hope ba.writeBytes(_rawData, (bitPosition / 8)); return ba; } This seems to work time-wise, but all the recorded audio gets staticy and gross. Is something off about my rounding? This is the first time I've needed to alter raw PCM data so I'm not sure about the finer details of it. Thanks!

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  • How to get top 3 frequencies in MySQL?

    - by Amenhotep
    Hello, In MySQL I have a table called "meanings" with three columns: "person" (int), "word" (byte, 16 possible values) "meaning" (byte, 26 possible values). A person assigns one or more meanings to each word: person word meaning ------------------- 1 1 4 1 2 19 1 2 7 <-- second meaning for word 2 1 3 5 ... 1 16 2 Then another person, and so on. There will be thousands of persons. I need to find for each of the 16 words the top three meanings (with their frequencies). Something like: word 1: meaning 5 (35% of people), meaning 19 (22% of people), meaning 2 (13% of people) word 2: meaning 8 (57%), meaning 1 (18%), meaning 22 (7%) ... Is it possible to solve this with a single MySQL query? (If this problem is a classic one and has been answered elsewhere, I would appreciate if you could give me a link to the solution.) Thank you very much, ve

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  • Mapping an Array to a Single Row

    - by João Bragança
    I have the following classes: public class InventoryItem { private Usage[] usages = new Usage[12]; virtual public Usage[] Usages { get { return usages; }} virtual public string Name{get;set;} } public class Usage { virtual public double Quantity{get;set;} virtual public string SomethingElse{get;set;} } I know that Usages.Length will always be 12. I think it would be best to store it in the DB like so: Name nvarchar(64), Usage_Quantity_0 float, Usage_SomethingElse_0 nvarchar(16), Usage_Quantity_1 float, Usage_SomethingElse_1 nvarchar(16), ... Usage_Quantity_11 float, Usage_SomethingElse_11 nvarchar(16), How can I get this done?

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  • How to detect Windows 64 bit platform with .net?

    - by Marc
    In a .net 2.0 C# application I use the following code to detect the operating system platform: string os_platform = System.Environment.OSVersion.Platform.ToString();<br/> This returns "Win32NT". The problem is that it returns "Win32NT" even when running on Windows Vista 64bit. Is there any other method to know the correct platform (32 or 64bit)? Note that it should also detect 64bit when run as 32bit app on Windows 64bit.

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  • How to binding to bit datatype in SQL to Booleans/CheckBoxes in ASP.NET MVC 2 with DataAnnotations

    - by nvtthang
    I've got problem with binding data type boolean to checkbox in MVC 2 data annotations Here's my code sample: label> Is Hot </label> <%=Html.CheckBoxFor(model => model.isHot, new {@class="input" })%> It always raise this error message below at (model=model.isHot). Cannot convert lambda expression to delegate type 'System.Func<Framework.Models.customer,bool>' because some of the return types in the block are not implicitly convertible to the delegate return type Cannot implicitly convert type 'bool?' to 'bool'. An explicit conversion exists (are you missing a cast?) Please suggest me how can I solve this problem? Thanks in advance.

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  • How can I replace a line which contains only -------- by |||

    - by mimou
    I have something like: ------------------------------------------------------------------------ r2 | username | 2011-01-16 16:52:23 +0100 (Sun, 16 Jan 2011) | 1 line Changed paths: D /foo Removed foo ------------------------------------------------------------------------ r1 | username | 2011-01-16 16:51:03 +0100 (Sun, 16 Jan 2011) | 1 line Changed paths: A /foo created foo ------------------------------------------------------------------------ My target is to identify the file added by the "username" in a specific date. Thus, I need to have the combination (username, 16 Jan 2011, A) to insure that it is the right file ands then print foo. My idea is to: delete the white spaces change the newlines into | get rid of the --------------- and replace them with newlines but the problem is that I couldn't replace the ------- since they are mixed with other characters. ------------------------------------------------------------------------ |r2|username|2011-01-1616:52:23+0100(Sun,16Jan2011)|1line|Changedpaths:|D/foo|Removedfoo| ------------------------------------------------------------------------ |r1|username|2011-01-1616:51:03+0100(Sun,16Jan2011)|1line|Changedpaths:|A/foo|createdfoo| ------------------------------------------------------------------------ So I thought it would be a good idea to start by replacing the --------------- by a special character like ||| and then change this character by a newline using awk FS=||| OFS=\n Can anyone help me! thanks

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  • How to use group by for grouping varchar data.

    - by Shantanu Gupta
    I have a table that contains some data given below pk_map_id preferences ImmediateParent Department_Id -------------------- -------------------- -------------------- -------------------- 20 14 5 1 21 15 5 1 22 16 6 1 23 9 4 2 24 4 3 2 25 24 20 2 26 25 20 2 27 23 13 2 I want to group my records on behalf of department then immediate parent then preferences each seperated by ',' i.e. department Immediate Parent preferences 1 5,6 14,15,16 2 4,3,20,13 9,4,24,25,23 and this table also Immediate parent preferences 5 14,15 6 16 4 9 3 4 20 24,25 13 13 In actual scenario all these are my ids which are to be replaced by their string fields. I am using sql server 2k5

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  • Android: setting up a google map class. bit of advice required.

    - by Capsud
    Hey there, Ok so this is what i've got. Button anandabutton = (Button) findViewById(R.id.anandaAddressButton); anandabutton.setOnClickListener(new View.OnClickListener() { public void onClick(View view) { Intent myIntent = new Intent(view.getContext(),MapClass.class); startActivityForResult(myIntent,0); } }); This method opens up my MapClass class which at the moment I just have set to show the location of one place. But I have a load of buttons and rather than making a lot of different mapClass classes for each button, I am wondering can I just use the one class and depending on what button 'id' is pressed, it will check an 'if statement' and then put in the correct coordinates into the method to display the map. It would be a lot neater than coding up like 20-30 classes. I'm not sure if i've explained that right so if not let me know. Thanks for any help.

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  • How to sort the numbers using c#

    - by karthik
    I need some help in code to be able to handle the following logic. The program gets many input in Integers like 10,16,3,17,21,29,6 Logic to be done : scenario : 1 First select the biggest 4 numbers of input which is 16,17,21,29 Now assign the values to A,B,C and D A = smallest in the selected 4 B = biggest in the selected 4 C = second smallest in the selected 4 D = third smallest in the selected 4 Result to be Displayed : A = 16 B = 29 C = 17 D = 21 scenario : 2 If the user gives 3 inputs like 3,6,10 assign only to A,B,C and should ignore D Result to be Displayed : A = 3 B = 10 C = 6

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  • Select all rows where there is not a specific value in a different table

    - by JMC Creative
    This is a wordpress installation, but I think the question is more of a general sql question. First off, my sql skills are not great (I don't even know if I'm following the correct format for illustrating the db). I've got two tables: wp_posts : ID (pk) | post_name | ... ---------------------------- 45 | "Hello" 91 | "Funny" 16 | "Wheat" wp_postmeta : post_id (fk) | meta_key | meta_value | ... ------------------------------------------------ 45 | "_edit_lock" | 5789789834 45 | "fizzbizz" | "foobar" 91 | "_something" | "teve" 16 | "_edit_lock" | 8798756 I would to select all rows in wp_posts where there is NO corresponding row in wp_postmeta where meta_key = "fizzbizz" I originally had this query, but someone pointed out that it would not retrive ID = '16' in the above case. How would I correctly write the query? $pageposts = $wpdb->get_results(" SELECT * FROM wp_posts p JOIN wp_postmeta m ON p.ID = m.post_id WHERE m.meta_key <> 'fizzbizz' ORDER BY p.post_date DESC; ");

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  • How to get the records using order by and so on

    - by paulrajj
    I have a table categories containing categories id having the records of 1 to 20. when i am doing the search query by using the IN function in mysql i got the results. but i am struggling to get the results using order by. The limit may be vary for every search as this is one of the input value. For example I have tried this query to find out the search results, select * from categories where category in (20,16,12,8) order by rand(), id limit 0,6 this query is executed and the results are in random category_id. the results will be, 8 12 16 20 and following this, another two records must be 8 12 If category_id contains only one record for 8 then, it should follow from 12,16. How can i achieve this ? thanks in advance.

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  • Simplest way to create a wrapper class around some strings for a WPF DataGrid?

    - by Joel
    I'm building a simple hex editor in C#, and I've decided to use each cell in a DataGrid to display a byte*. I know that DataGrid will take a list and display each object in the list as a row, and each of that object's properties as columns. I want to display rows of 16 bytes each, which will require a wrapper with 16 string properties. While doable, it's not the most elegant solution. Is there an easier way? I've already tried creating a wrapper around a public string array of size 16, but that doesn't seem to work. Thanks *The rational for this is that I can have spaces between each byte without having to strip them all out when I want to save my edited file. Also it seems like it'll be easier to label the rows and columns.

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  • Android string formatiing from xml

    - by mann
    I am parsing xml from server. One of its node contains data like <distance>16.3432434324354324km</distance> I am putting it into hashmap like for (int i = 0; i < nl.getLength(); i++) { map.put(KEY_DISTANCE, parser.getValue(e, KEY_DISTANCE)); // adding HashList to ArrayList menuItems.add(map); } Everything is nice. But i want it two decimal places for example i want its value should be 16.34km rather then 16.343234324342342km I tried with DecimalFormat twoDForm=new DecimalFormat("##.00"); try{ Double StartVTwo=Double.valueOf(KEY_DISTANCE); Double resultDouble1 = Double.valueOf(twoDForm.format(StartVTwo)); Log.e("check", String.valueOf(resultDouble1)); }catch (NumberFormatException e){ Log.e("error"," This is error "); } But it shows exception and prints this message. Any help would be appreciated!!

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  • Strange hex formatting in NSString

    - by pseudopeach
    Try this: unsigned long long int N; = 23229877463LL; NSString* s = [NSString stringWithFormat:@"dec:%qi, hex:%qX",N,N]; NSLog(@"output: %@",s); output: dec:23229877460, hex:689BCCD400000005 What's up with the 00000005??? In mySQL, hex(23229877460) = 5689BCCD4. Also, every other language seems to do this correctly. A 16 digit long hex is like 4 gazillion (16^16), right? How can I get objective-c to format hex numbers that other languages can understand?

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  • Array iteration issue

    - by Tao
    i have this array which i echo and get this results: $hostess_ids[]=$row['hostess_id']; $j=0; foreach($hostess_ids as $hostess_selected){ $hostess_array= explode("-",$hostess_selected); echo var_dump($hostess_array); This is the output array(1) { [0]=> string(2) "16" } array(1) { [0]=> string(2) "16" } array(1) { [0]=> string(0) "" } array(1) { [0]=> string(0) "" } array(2) { [0]=> string(2) "17" [1]=> string(1) "1" } array(1) { [0]=> string(0) "" } array(2) { [0]=> string(2) "17" [1]=> string(1) "1" } array(2) { [0]=> string(2) "17" [1]=> string(2) "16" } How can i iterate in this array to get the first ceel values, then the second one, etc etc... Thanks..

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  • Does Git support more than 32 bit file in windows?

    - by dhanasekar79
    We have a problem in cloning a repository created in unix in to a Windows box. Git fails while checking out a lengthy file that has more than 32 characters in windows. The file name is given below. BaseFCS_x0020_OnLine_x0020_Identicheck_x0020_verification_x0020_serviceConsumer.java* Is there a way to fix this issue in Git?

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  • sql server - bulk insert error

    - by user554134
    I am using bulk insert and getting below error: Note: The data in the load file is not beyong the configured column length Running Command: bulk insert load_data from 'C:\temp\dataload\load_file.txt' with (firstrow = 1, fieldterminator = '0x09', rowterminator = '\n',MAXERRORS = 0, ERRORFILE = 'C:\temp\dataload\load_file') Contents of load file: user_name file_path asset_owner city import_date admin C:\ admin toronto 04/12/2012 Error: Msg 4863, Level 16, State 1, Line 1 Bulk load data conversion error (truncation) for row 1, column 6 (validated). Msg 7399, Level 16, State 1, Line 1 The OLE DB provider "BULK" for linked server "(null)" reported an error. The provider did not give any information about the error. Msg 7330, Level 16, State 2, Line 1 Cannot fetch a row from OLE DB provider "BULK" for linked server "(null)".

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  • Working by group by for grouping data into string format

    - by Shantanu Gupta
    I have a table that contains some data given below. It uses a tree like structure i.e. Department SubD1, SubD2 ..... PreSubD1, PreSubD1... PreSubD2, PreSubD2... pk_map_id preferences ImmediateParent Department_Id -------------------- -------------------- -------------------- -------------------- 20 14 5 1 21 15 5 1 22 16 6 1 23 9 4 2 24 4 3 2 25 24 20 2 26 25 20 2 27 23 13 2 I want to group my records on behalf of department then immediate parent then preferences each seperated by ',' i.e. department Immediate Parent preferences 1 5,6 14,15,16 2 4,3,20,13 9,4,24,25,23 and this table also Immediate parent preferences 5 14,15 6 16 4 9 3 4 20 24,25 13 13 In actual scenario all these are my ids which are to be replaced by their string fields. I am using sql server 2k5

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  • Float32 to Float16

    - by Goz
    Can someone explain to me how I convert a 32-bit floating point value to a 16-bit floating point value? (s = sign e = exponent and m = mantissa) If 32-bit float is 1s7e24m And 16-bit float is 1s5e10m Then is it as simple as doing? int fltInt32; short fltInt16; memcpy( &fltInt32, &flt, sizeof( float ) ); fltInt16 = (fltInt32 & 0x00FFFFFF) >> 14; fltInt16 |= ((fltInt32 & 0x7f000000) >> 26) << 10; fltInt16 |= ((fltInt32 & 0x80000000) >> 16); I'm assuming it ISN'T that simple ... so can anyone tell me what you DO need to do?

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  • So, I have this jquery bit that adds a row to a table the way I need it to, but it's UGLY

    - by dhoss
    I have a table that looks like this: <table name="exercises" id="workout-table"> <tr> <th>Name</th> <th>Reps/Intervals</th> <th>Sets</th> <th>Weight/Distance/Time</th> </tr> [%- i=0 %] [% WHILE i<=10 %] <tr class="workout-rows"> <td><input type="text" name="workout[exercise][[% i %]][name]" /></td> <td><input type="text" name="workout[exercise][[% i %]][repetitions]" size="3"/></td> <td><input type="text" name="workout[exercise][[% i %]][sets]" size="3"/></td> <td><input type="text" name="workout[exercise][[% i %]][weight]" size="4"/></td> </tr> [% i = i + 1 %] [% END %] </table> That template code is Template::Toolkit code that basically just generates an index so I can keep track of elements in what will become an HoAoH from Catalyst::Plugin::Params::Nested. This is the javascript that actually adds the row to the table on button click: $("#add-row").click(function(){ var size = $(".workout-rows").length; //size += 1; var row ='<tr class="workout-rows">' + '<td><input type="text" name="workout[exercise][' + size + '][name]" /></td>' + '<td><input type="text" name="workout[exercise][' + size + '][repetitions]" size="3"/></td>' + '<td><input type="text" name="workout[exercise][' + size + '][sets]" size="3"/></td>' + '<td><input type="text" name="workout[exercise][' + size + '][weight]" size="4"/></td>' + '</tr>'; $("#workout-table >tbody tr:last").after(row) }); I really really don't like the idea of copy-pasting the table row markup into the script itself, as it's repetitive and non-intuitive. I've tried .clone stuff, which works great for copying the row verbatim, but it doesn't keep track of the number of rows dynamically like I need it to. So basically I've pared it down to needing to find out how to mess with the name of each input so that it can reflect the loop index appropriately, so Catalyst::Plugin::Params::Nested will build the correct structure. Thoughts?

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  • Help Please, I want use LINQ to Query Count in a matrix according to a array!

    - by Bob Feng
    I have a matrix, IEnumerable<IEnumerable<int>> matrix, for example: { {10,23,16,20,2,4}, {22,13,1,33,21,11 }, {7,19,31,12,6,22}, ... } and another array: int[] arr={ 10, 23, 16, 20} I want to filter the matrix on the condition that I group all rows of the matrix which contain the same number of elements from arr. That is to say the first row in the matrix {10,23,16,20,2,4} has 4 numbers from arr, this array should be grouped with the rest of the rows with 4 numbers from arr. better to use linq, thank you very much!

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  • Using LINQ to filter rows of a matrix based on inclusion in an array

    - by Bob Feng
    I have a matrix, IEnumerable<IEnumerable<int>> matrix, for example: { {10,23,16,20,2,4}, {22,13,1,33,21,11 }, {7,19,31,12,6,22}, ... } and another array: int[] arr={ 10, 23, 16, 20} I want to filter the matrix on the condition that I group all rows of the matrix which contain the same number of elements from arr. That is to say the first row in the matrix {10,23,16,20,2,4} has 4 numbers from arr, this array should be grouped with the rest of the rows with 4 numbers from arr. better to use linq, thank you very much!

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  • Is there a 128 or 256 bit double class in .net?

    - by AKRamkumar
    I have an application that I want to be able to use large numbers and very precise numbers. For this, I needed a precision interpretation and IntX only works for integers. Is there a class in .net framework or even third party(preferably free) that would do this? Is there another way to do this?

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