determine the end of playing wavefile

[xiuming]

I write a programm to play the wave file, and i want to know how to determine the end of playing wavefile.

i use SO write and So start to play it.

thanks

[andre.buurman@carya]

Split the data so you can write a second of data each iteration. You can calculate the length of data in seconds or number of iterations beforehand so each progressing iteration you know how many you have to go.

[xiuming]

thank you for your reply.

I‘m sorry, I'm new in labview.

 it stops playing when it finishs, but it doesn't jump out this loop while of playing, i want to set when the play is finished, the PLAY and FILE active, and also i can save the data after the filter.

thanks advance

[andre.buurman@carya]

Use "Sound Output info.vi" inside the loop to check if the file is still playing.

[xiuming]

 is there sound output in labview7？ i’m sorry i can't find that.

thanks for telling me

[andre.buurman@carya · Accepted solution]

I think in order todo monitor the progress you would have to try and understand what I explained in my first response. LabVIEW 7 and 7.1 don't have the function "Sound Output Info.vi".

The general idea is to use Sound output in the same way as you would use Analog output. Not to write the complete file to the output at once but to feed it pieces of sound fast enough for it to keep up outputting it. In that way you know which piece is outputted when thus having a progress indication.