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- * * * * * * * VDFE v2.0 Help File * * * * * * *
-
- ┌──────────────────────────────────────────────────────────┐
- │ »»»»»»»»»»»»»»»»»» NON-MENU ACTIONS ««««««««««««««««««« │
- ├─────────────────────────────────────┬────────────────────┤
- │ Action Key │ Action Key │
- ├─────────────────────────────────────┼────────────────────┤
- │ Selected a Value │ Redraw Screen F9 │
- │ Selected Value + 1 Shift+ │ Activate Menu F10 │
- │ Selected Value + 100 Shift+PgDn │ │
- │ Selected Value + 10000 Shift+End │ │
- │ Selected Value - 1 Shift+ │ │
- │ Selected Value - 100 Shift+PgUp │ │
- │ Selected Value - 10000 Shift+Home │ │
- └─────────────────────────────────────┴────────────────────┘
- ┌────────────────────────────────────────────────────────────────────────────┐
- │ »»»»»»»»»»»»»»»»»»»»»»»»»»»»»» MENU ACTIONS ««««««««««««««««««««««««««««« │
- ├────────────────────────────┬───────────────────────────────────────────────┤
- │ Action Key │ Action Key │
- ├────────────────────────────┼───────────────────────────────────────────────┤
- │ Load Index File Alt+I │ Play the Block Enter │
- │ Load Data File Alt+D │ Merge Current Block with Next M │
- │ Change File Names Alt+N │ Split Current Block S │
- │ Save Index File Ctrl+I │ Cut Block to Clipboard Del │
- │ Save Data File Ctrl+D │ Paste from Clipboard Insert │
- │ Save Both Ctrl+S │ Copy Block to Clipboard Shift+Insert │
- │ Create Index I │ Delete the Block Shift+Del │
- │ Pack Data Ctrl+P │ Write Clipboard to File W │
- │ Help F1 │ Read File into Clipboard R │
- │ Exit Esc │ Record into Clipboard F3 │
- │ │ Play Clipboard Contents F4 │
- │ │ Select COM Port (for recording) F2 │
- │ │ Select Playback Device F5 │
- └────────────────────────────┴───────────────────────────────────────────────┘
-
- ══════════════════════════════╡ Introduction ╞══════════════════════════════
-
- VDFE is designed to work with pairs of files, one containing the actual
- digitized voice data and the other providing an index into the words,
- phrases, and sounds stored in the data file. This allows a reasonable level
- of programming flexibility, especially for systems using large amounts of
- voice data. VDFE works only with data files in their uncompressed form.
-
- Data files are unlimited in length. Index files may contain at most 4096
- entries. An index file consists only of a number of index entries packed
- together. Each entry is 8 bytes long, so the file length will be 8 times
- the number of entries. One entry in an index file is formatted as follows:
-
- Bytes 0 - 3: Offset from beginning of data file in bytes.
- Bytes 4 - 7: Length of sound in bytes.
-
- Each of the two parts of the entry is a "long" (4-byte) integer, stored
- in "low byte first" order.
-
- In this document, a "block" refers to a segment of a voice data file as
- referenced by an entry in the corresponding index file. The length of a
- block may range from 1 byte to the length of the entire data file. Note,
- however, that VDFE requires blocks to be sequential and non-overlapping.
- Gaps may exist, but no voice data byte may be a part of two blocks.
-
- ═════════════════════╡ Explanation of Screen Contents ╞═════════════════════
-
- Menu Bar:
- Works in the conventional way. Activate by pressing F10. The mouse is not
- supported in this version. Use of the menu bar is optional, since all
- commands are accessible through direct keystrokes.
-
- Blk # (Block number):
- Shows a sequential reference number for each index entry.
-
- Start:
- Shows the starting byte number within the data file for each block. Can be
- changed from the keyboard.
-
- Stop:
- Shows the ending byte number within the data file for each block. Can be
- changed from the keyboard. The number actually saved in the index file for
- each block is <Stop> - <Start>.
-
- Block count:
- This is the total number of blocks currently defined for the index file.
-
- Data file size:
- The total number of bytes currently in the data file.
-
- Buffer size:
- This is the number of bytes in the RAM buffer. This number has no effect
- on the size of the data file that may be edited, or the size of files that
- may be read and written through the clipboard. It affects only actual
- recording and playback. It is the maximum size allowed for any block to be
- played through the speaker, although larger blocks may be otherwise
- manipulated. It is also the maximum number of bytes that can be
- continuously recorded into the clipboard.
-
- Digitizer port:
- This is the COM port number to which the voice digitizer hardware is
- attached. It can be set with the F2 key. Used for recording only.
-
- Sound Output:
- This is either the PC internal speaker or an LPT (printer) port into
- which you have plugged a Farpoint EAR-WIZARD device (and, of course, a
- set of headphones or a speaker). The F5 key sets this parameter.
-
- Index file:
- The name of the current index file. Change by pressing Alt+N. The current
- index will be written to this file name by Ctrl+I or Ctrl+S.
-
- Data file:
- The name of the current data file. Change by pressing Alt+N. The current
- data will be written to this file name by Ctrl+D or Ctrl+S.
-
- Instruction area:
- Always displays a very brief set of operating instructions.
-
- ══════════════════╡ Descriptions of Individual Commands ╞═══════════════════
-
- Selected a Value ( ):
- When there are entries in the index list (Blk #, Start, & Stop) then one
- of these entries is always "selected", as indicated by highlighting. The
- highlight can be moved up and down with the vertical arrow keys. The
- horizontal arrow keys select either the Start or Stop value. The selected
- value can then be manipulated. Its numerical value can be changed with the
- Shift key in combination with various cursor pad keys (see the following
- commands). The selected block is also the target of the Play, Merge,
- Split, Cut, Paste, Copy, and Delete commands.
-
- Selected Value + 1 (Shift+):
- Adds 1 to the selected value unless it would cause an overlap.
-
- Selected Value + 100 (Shift+PgDn):
- Adds 100 to the selected value unless it would cause an overlap.
-
- Selected Value + 10000 (Shift+End):
- Adds 10000 to the selected value unless it would cause an overlap.
-
- Selected Value - 1 (Shift+):
- Subtracts 1 from the selected value unless it would cause an overlap.
-
- Selected Value - 100 (Shift+PgUp):
- Subtracts 100 from the selected value unless it would cause an overlap.
-
- Selected Value - 10000 (Shift+Home):
- Subtracts 10000 from the selected value unless it would cause an overlap.
-
- Redraw Screen (F9):
- Redraws the entire screen. Intended primarily as a means of recovering
- after screen is trashed by "Abort, Retry, Ignore, Fail?" message from DOS.
-
- Activate Menu (F10):
- Highlights the first selection in the menu bar. Use <Enter> key to show
- pull-downs, select with arrow keys, then use <Enter> to perform the action
- or <Esc> to back out.
-
- Load Index File (Alt+I):
- The cursor will appear in the "Index file" area (near the bottom of the
- screen) allowing a file name to be entered and/or edited. Press <Enter>
- to load the specified index file or <Esc> to do nothing.
-
- Load Data File (Alt+D):
- The cursor will appear in the "Data file" area (near the bottom of the
- screen) allowing a file name to be entered and/or edited. Press <Enter>
- to load the specified data file or <Esc> to do nothing.
-
- Change File Names (Alt+N):
- This allows the user to alter the current names of the index and data
- files. Use the arrow keys to switch between file names. Press <Enter>
- when done.
-
- Save Index File (Ctrl+I):
- The current index listing will be written to the file name shown at the
- bottom of the screen as the "Index file". Use Alt+N to change this name.
-
- Save Data File (Ctrl+D):
- The current voice data will be written to the file name shown at the
- bottom of the screen as the "Index file". Use Alt+N to change this name.
-
- Save Both (Ctrl+S):
- This combines the two save operations (see Save Index and Save Data).
-
- Create Index (I):
- This operation will analyze the entire data file, attempting to
- distinguish between areas of sound and areas of silence. The areas of
- sound will become blocks in the newly created index. The areas of silence
- will become gaps in the index (i.e. parts of the data file that are not
- included in any indexed block). NOTE: This will erase the current index
- in memory (but not the one on disk, unless you then Save Index without
- changing the file name). If a data file has already been stripped of its
- silent areas by editing and the use of the Pack Data command, then Create
- Index will not succeed because it will be unable to find areas of silence
- in the file. Create Index is actually intended to be used only once on a
- newly recorded data file.
-
- Pack Data (Ctrl+P):
- This will remove all areas of the data file which are not currently part
- of any index entry. The indexed blocks will be packed together with no
- addressing gaps. The index Start and Stop values will be adjusted
- accordingly. This command is intended for use after careful editing to
- strip out unused voice data and save disk space in the finished file.
-
- Help (F1):
- Displays this file.
-
- Exit (Esc):
- Exits to DOS from VDFE (after a last-chance prompt).
-
- Play the Block (Enter):
- The currently selected block is played through the speaker.
-
- Merge Current Block with Next (M):
- The currently selected block and the next sequential block will be
- combined into a single block. The total block count will be decremented.
-
- Split Current Block (S):
- The currently selected block will be split into two blocks, each half the
- size of the original. The total block count will be incremented.
-
- Cut Block to Clipboard (Del):
- The voice data of the currently selected block will be copied to the
- clipboard (a temporary file), overwriting the previous clipboard contents.
- The block will then be deleted from the voice data and index.
-
- Paste from Clipboard (Insert):
- This is the reverse of Cut to Clipboard. A new block will be created in
- the index and data. The contents of the clipboard will then be copied into
- this new block. The clipboard contents remain unchanged. NOTE: If the
- currently selected value is a Start value, then the new block will be
- inserted BEFORE it. If the currently selected value is a Stop value, then
- the new block will be inserted AFTER it.
-
- Copy Block to Clipboard (Shift+Insert):
- The voice data of the currently selected block will be copied to the
- clipboard (a temporary file), overwriting the previous clipboard contents.
- The index and data will not be changed.
-
- Delete the Block (Shift+Del):
- The currently selected block will be deleted from the index and data. The
- block count and data size will decrease.
-
- Write Clipboard to File (W):
- This will simply write the current clipboard voice data to a file. The
- user will be prompted for a file name.
-
- Read File into Clipboard (R):
- This reads a user-specified voice data file into the clipboard,
- overwriting the previous clipboard contents.
-
- Record into Clipboard (F3):
- The previous contents of the clipboard will be deleted, and recording will
- start into the memory buffer. Once recording has terminated, either
- through a keypress, the use of the "stop" switch on the digitizer board,
- or running out of memory, the buffer will be copied into the clipboard.
- NOTE: A common error consists of forgetting to set the COM port number
- prior to recording.
-
- Play Clipboard Contents (F4):
- The current clipboard contents will be played through the speaker.
-
- Select COM Port (F2):
- This increments the digitizer COM port number, wrapping at 4.
-
- Select Sound Playback Destination (F5):
- Cycles the sound output destination through all its possible values,
- including the internal speaker ("Spkr"), LPT1, LPT2, and LPT3. If one
- or more LPT ports is missing as the list is cycled, it means that the
- program has detected that the port is not physically present in the
- computer.
-
- ═══════════════════════╡ A Typical Editing Session ╞════════════════════════
-
- Prepare a list of words, phrases, and sounds that you wish to record,
- including the order in which they are to appear in the voice data file.
-
- If you have not already done so, read the section of the digitizer
- documentation that concerns input volume levels and the indicator LEDs.
-
- Attach the digitizer to a COM port. Execute VDFE by typing its name at the
- command prompt. You must not be running in a DOS box under Microsoft Windows
- in enhanced mode. Press F2 repeatedly until the correct port number shows in
- the "Digitizer port" box.
-
- If you want to play the sound through the PC internal speaker, set "Sound
- Output" to "Spkr". If you are using a Farpoint EAR-WIZARD, plug it into one
- of the parallel printer ports and set "Sound Output" to the correct port.
- Press the F5 key repeatedly until the desired choice is displayed.
-
- If you are creating a new voice data file, press Alt+N and type both an
- index file name and a data file name into the appropriate slots.
-
- To record new data: turn the digitizer on, then press F3 and start talking
- (or whatever is appropriate). There is a delay of about one second between
- the keypress and the start of data recording. VDFE will say "Go" at the
- moment recording begins. Press a key on the keyboard or the "stop" switch on
- the digitizer when finished. You can listen to the recording just made by
- pressing F4. If the recording is not satisfactory, re-record it by pressing
- F3.
-
- Once the recording in the clipboard is considered satisfactory, it may be
- inserted into the main data file by pressing Insert. If more data must be
- recorded than will fit into the memory buffer, then repeat the previous
- procedure until all desired sounds have been accumulated as blocks in the
- data file. Be sure that you have enough free disk space before starting.
- Remember also to turn off the digitizer when not in use to conserve the
- batteries.
-
- If you want to use the automatic indexing capability, press the "I" key at
- this point and a new index will be created.
-
- Use the Selected Value increment and decrement commands to adjust the
- position and size of each block as required. Some sounds intended as one
- block will probably appear as several, due to embedded silence. Use the
- Merge command to combine them. As you adjust each block, use the Enter key
- to listen to it in its current state.
-
- Once all blocks are correct, and you are sure that the data in the
- inter-block gaps is not needed, press Ctrl+P to remove the unneeded data and
- minimize the file size. Press Ctrl+S to save the index and data files.
-
- * * * * * * * End of Help File * * * * * * *
-