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- Sample editor
- =============
-
- MED has a built-in sample editor for sampling and simple editing operations.
- The sample editor is activated by clicking the SMPED gadget.
-
- When you load a sample, its waveform is displayed on the sample editor screen.
- At the right top corner of the waveform display, there's a number telling
- the number of bytes currently displayed. Initially it's the length of the
- sample (whole sample displayed). The minimum value is 624, which means that
- there's one pixel for each byte in sample.
-
- Below the waveform, there's a red bar. This tells you the size of display
- relative to the size of the whole sample, and your current display position
- in the sample (this is meaningful when you zoom in).
-
- Buffer size
- ===========
-
- At the left side of the screen, there's a gadget labeled BUFFSIZE:. This is
- the size of the current sample (waveform buffer). If you want to increase the
- size, you can type in a new value. The whole sample is then cleared.
- Maximum buffer size is 131072.
-
- Selecting range
- ===============
-
- Many editing operations work with a specified range. The range is set in the
- sample editor by clicking the RMB and dragging. The RNGSTRT/RNGEND show the
- actual byte positions of the start and end of the range. You can also change
- the start/end positions by entering a new value into them. The RANGE ALL
- gadget selects the whole display.
-
- When you've selected the range, you can readjust start/end point by holding
- the Shift while dragging with mouse. The other point is the left untouched.
-
- Playing
- =======
-
- Next to the BUFFSIZE-gadget, there are gadgets PLAY DISPLAY and PLAY RANGE.
- "Play display" plays the current display with the current period value (see
- below). Play range plays the selected range. The whole waveform can be played
- simply with the keyboard (as usual).
-
- Zooming
- =======
-
- For accurate editing, the zoom is very important. There are many ways to zoom
- into the waveform.
- 1. Use the ZOOM IN to zoom in, or ZOOM OUT to zoom out (I wonder if this is
- too complex...??? :-)
- 2. Select a range, then click SHOW RANGE. The range is then displayed on the
- screen.
- When you want to restore the whole waveform to the view, click SHOW ALL.
- These controls should be familiar to AudioMaster users.
- When you've zoomed in, it's often necessary to move around the sample.
- You can scroll the displayed area with cursor right/left-keys.
-
- Sampling
- ========
-
- MED has the basic sampling operations built-in. The MONITOR gadget shows
- you the real-time waveform input from the sampler (multitasking disabled).
- Click mouse button to stop. The RECORD gadget is used for sampling. Click
- it, and the real-time waveform appears. Now you can click the left mouse
- button to start sampling, and right mouse button to cancel. When you click
- the left button, the screen blanks, and sampling starts. The sampling stops
- when the waveform buffer is full. You can also interrupt sampling with the
- right mouse button.
-
- Sampling/playing rate
- =====================
-
- On the right side of the screen, the current sampling/playing period is
- displayed (default 428). This is the value that specifies the pitch of the
- sound. You can change the period by entering a new value into the PITCH-integer
- gadget, and pressing Return. E.g. to double the sampling speed, you could
- type in the number 214. You can also change it by clicking on the note,
- holding the button and entering a new note using the keyboard.
-
- Changing the sample rate
- ========================
-
- If you have a sample with period 428 (C-2), and you'd like to transpose it
- to play G-2 when you play C-2, then you do the following:
- 1. Make sure that the current period is 428.
- 2. Click the note of "Dest"-gadget, hold the button and press G-2 (if octaves
- 1+2 are used, it'd be T).
- 3. Click the CHANGE RATE -gadget. Now the sample is transposed (its size will
- change).
-
- If you simply want to transpose the sample one octave up/down, there are two
- shortcut gadgets for that. Oct (up arrow) transposes the sample 1 octave up,
- halving its size, while the Oct (down) transposes it down (doubling the size).
-
- Selecting the save format
- =========================
-
- On the bottom right corner, there are gadgets for selecting the save format,
- labeled RAW and IFF. These affect the operation of the filerequester option
- Save, sample. If raw is selected (default), no IFF chunks will be saved. When
- IFF is clicked, the samples will be saved in IFF 8SVX format. The repeat/
- repeat length values are then included in the saved sample.
-
- Basic editing operations
- ========================
-
- The sample editor contains the basic editing operations, that exist in every
- sample editor. They're located on the bottom left corner, and they are:
-
- CLR Clears the current range.
- DEL Cuts the range (it will not be copied to the copy buffer).
- CUT Cuts the range, and puts it to the copy buffer.
- COPY Copies the range to the copy buffer.
- PASTE Pastes the contents of the copy buffer to the position pointed
- by the cursor (range with length of 1 byte).
-
- If you want to get rid of the copy buffer (freeing the memory it takes), click
- DEL CBUFF.
- Additional operations:
- S>CBUFF copies the whole sample to the copy buffer
- CBUFF>S copies the copy buffer to the sample
-
- These can be used for implementing a simple "Undo". E.g. if you're
- experimenting with echos, you can quickly make a snapshot with S>CBUFF. Then
- you can do the echo operation, listen to it, and if you're not satisfied, you
- can quickly get back the original with CBUFF>S.
-
- Reversing
- =========
-
- You can reverse a range with REV-gadget. The area is then turned backwards.
- This is useful if you want to search for hidden messages from a certain kind
- of rock-tunes. Anyway, it's fun to record your own voice and then turn it
- backwards.
-
- Mixing
- ======
-
- This mixes two samples together. The source sample must be in the copy buffer.
- Then position the cursor (click RMB, but don't drag) to the point where you
- want the second sample to start, and click MIX. You can also drag a range and
- then click MIX. In this case, only the area selected in range is affected.
-
- Changing volume
- ===============
-
- This effect allows you to change the volume of the sample, and create fades.
- Next to the CHANGE VOLUME -gadget are two integer gadgets. The left is the
- start volume, and the right is the end volume. Both are percentages of the
- original waveform. First you have to select the range to affect. Then look
- at these examples:
- 1. Double the volume:
- set both start and end volume to 200
- 2. Make the sound fade out:
- set start vol to 100 and end vol to 1
- 3. Make the sound fade in (starting from the half of the final volume)
- set start vol to 50 and end vol to 100
-
- After you've entered the start and end volumes, click CHANGE VOL, and the magic
- is done. If you increase the volume too much, the normal waveform limits are
- exceeded and distortion will occur.
-
- Echo
- ====
-
- With echo you can do some special tricks to the sound. This feature is learnt
- best by experimenting. Some facts should be known though. The echo-feature in
- MED's sample editor is controlled with two values: Delay and number of echos.
- Delay is the distance (specified in steps of 10 bytes) between two echos. If
- it's very low, you can produce some interesting results. Number of echos is
- the total number of echos. It should usually be quite low (1 - 10), but you
- can experiment with higher values.
-
- Usually you have to extend the workspace by inserting blank space for the
- echos after the end of the sample. This is can be easily done this way:
- 1. Click S>CBUFF.
- 2. Enter the number of inserted bytes in BUFFSIZE gadget.
- 3. Be sure that the cursor is in the beginning of the sample and click PASTE.
-
- Now, start playing. Activate DELAY-gadget, enter value, hit Return, enter
- the number of echos. Finally click ECHO, and listen...
-
- Filter
- ======
-
- This is a simple-to-use feature that allows you to smooth sample (reduces
- noise). Select the range to filter, and click Filter.
-
- Boost
- =====
-
- This is the exact opposite of the Filter, and it works in the same way. It
- makes the affected area sound brighter. The noise becomes more audible, too.
-
- Setting loop
- ============
-
- Setting the loop (repeat/repeat length) values in MED are not as easy as in
- AudioMaster, but good loop points can still be found quite easily. The handling
- gadgets are above the echo-things.
-
- RNG=LOOP range is set to correspond the current loop
- LOOP=RNG the loop is set to be the current range
- S range start point under handling
- E range end point under handling
- < move start/end point 1 byte left
- > move start/end point 1 byte right
- <0 move start/end point left until a zero is found
- 0> move start/end point right until a zero is found
-
- The S and E gadgets select, if the <, >, <0 and 0> gadgets affect the starting
- or ending point. The ZOOM IN/OUT gadgets are useful for finding the range, as
- they allow you to examine the waveform very accurately.
-