Comments by Du Sijun - CodeProject

Du Sijun 4-Jul-11 7:54am View

Thanks for your hint.

Du Sijun 4-May-11 14:19pm View

Good point, I mean no sound from speaker and no exception from program. However I had fix this problem.Thanks for your reply.

Du Sijun 1-May-11 13:18pm View

Yes, it ought to be 0x05

Du Sijun 1-May-11 6:33am View

Thanks all, the problem is solved, the problem is cause by the file format.

In my program , when I call

_binaryWriter.Write("data");

It will write {0x04,'d','a','t','a'}
but not {'d','a','t','a'} to the file which cause the format problem. Even it can be played in WindowsMediaPlayer, it will not work in soundplayer.

Du Sijun 1-May-11 6:25am View

Hi,thanks for your hints, I am now checking file format.

Du Sijun 1-May-11 5:15am View

thanks, your code works for me too, so I believe there is something wrong with my wav format.

Du Sijun 3-Apr-11 10:21am View

Sounds good, I will ask them reserve more spaces for me.

Du Sijun 3-Apr-11 10:18am View

Hi, that's meeting recording, 2-3 hours. 48000hz 32bits, and there are total 9 recording channel,so after each meeting I have 9 big files.

I am using the simplest Microsoft wav format, here is the link

https://ccrma.stanford.edu/courses/422/projects/WaveFormat/

So in this case a 44 bytes header can make the PCM playable.

Du Sijun 3-Apr-11 6:57am View

Oh, It's raw PCM, and I would like to add a wave header to it.

Du Sijun 18-Mar-11 6:01am View

this may help:
http://www.codeproject.com/KB/system/serial.aspx

Du Sijun 18-Mar-11 3:22am View

http://msdn.microsoft.com/en-us/library/system.io.ports.serialport.aspx

http://social.msdn.microsoft.com/Forums/en/netfxbcl/thread/6d47261b-27c6-45d4-8c02-81d1490011fd

Please check if it works.

I work around seiarl port with assembly,microcontroller,c#,vb,java but not try c++ yet.

Du Sijun 11-Jan-11 9:52am View

thanks, same as before

Du Sijun 22-Aug-10 13:44pm View

clear all message
do checking{
read message
del message
}

Du Sijun 22-Aug-10 13:32pm View

:{ I do similar task in 2007 using a Sumsung mobile phone, it works well. for your case you can downlaod http://www.hillstone-software.com/hs_sms_dll_details.htm If it works for you ,just download a "serial port monitor" to see how serial port works.

Du Sijun 22-Aug-10 13:14pm View

AT+CNMI=2,1,0,1,0 ?

Du Sijun 22-Aug-10 13:00pm View

then

AT+CNMI=2,1,0,0,0

Du Sijun 22-Aug-10 12:43pm View

+CNMI: (2),(0-3),(0-3),(0-2),(0,1)
this shows what your modem can do

You can try following command

AT+CNMI=2,1,0,0,0 ok how about this

then send a SMS to your phone you will get some feedback like:

+CMTI: "ME",3

you need to check for this line

Comments by Du Sijun (Top 17 by date)