You are here: CSP Developer’s Guide: Overview > 8 Configuring and Using Resources on the DSP Series 2 Card > Recording Files
Feature Description
Procedure
1. Record files using the Record File Start 0x011E and Record File Stop 0x0120 messages.
You should use File IDs above 0x00100000 for longer files and for files you want to keep for a significant period.
For temporary recordings, such as those used for to directory assistance requests, you should use File IDs below 0x00100000. You must play back the temporary file from the same DSP Series 2 card on which they are recorded.
2. Create a Vocabulary Index File (VIF) to track recordings and point to files for playback.
See VIF Format in the DSP Series 2 CardProduct Description
chapter.
3. Download the VIF to the DSP card using the 0x05DF Vocabulary Index File TLV in the Generic Card Configure 0x0122 message.
Recording API Messages
Use this message to start recording a file.
Use this message to stop recording a file.
Use this message to modify the gain of a file recording, as well as to pause or resume the recording.
Use this message to delete a file from cache, or copy a file from cache to permanent storage.
Deleting Files
To delete files, send the DSP Cache Modify 0x011A message.