Using The 32 Channels - E-Mu Proteus Operation Manual

70

Using the 32 Channels

PROGRAMMING PROTEUS
The following
Proteus/1 presets
use only one output
channel:
5. Acoustic Guitar
14. Rock Drums 1
20. Velocity Falls
25. Special FX 1
30. Latin Drums
31. Wind Chimes
35. Baritone Sax
36. Solo Trumpet
46. Latin Percussion
48. Grand Piano
53. Solo Trombone
124. Tremolo Vibe
127. Barber Pole
160. Low Grand
161. Bright Piano
162. Xpressive String
163. String Vel.-> Atk.
164. Choir
165. Dark Choir
167. Alto Sax
168. Tenor Sax
170. French Horn
171. Trombone 2
172. Trom./Trumpet
173. Guitar Mutes
174. Electric Guitar
176. Rock Bass
177. Flint Bass
178. Bass Synth 2
179. Harmonics
180. Marimba
181. Vibes Wheel
182. Percussives
183. Rock Drums 2
184. Rock Drums 3
185. Snares/Drums
186. Kick Drums
187. Cymbals
188. Tom Toms
189. Conga Trans.
190. Block Trans.
Now your song will play perfectly every time using the proper presets,
volumes and pan positions. In addition, presets, volumes and pan
positions (or anything else for that matter) can be adjusted in realtime
during the song. Note: If the wrong presets are being selected, check the
MIDI Program -> Preset map.
To carry the pre-sequence setup even further, you can even include preset
data for each preset used in the sequence. See page 22 for details.
USING THE 32 CHANNELS
As stated earlier, Proteus has 32 independent audio channels which are
utilized dynamically. With 32 channels and 192 presets, you have a
universe of sonic textures at your disposal. But you have probably
noticed that many of the best sounding presets in Proteus are linked with
other presets or have chorus applied to them in order to make them sound
larger. While this is fine when the preset is played solo, you may begin to
run out of channels when Proteus is played multi-timbrally. Linking and
chorusing cause twice as many channels to be used by the preset. Learn
to "budget" your output channels for maximum efficiency.
CHANNEL RIPOFF
When Proteus uses up all its 32 channels and needs more, it steals a
channel from the key that has been held the longest. This is commonly
known as "channel ripoff". You will most commonly encounter this
"ripoff" when using Proteus in multi-timbral mode. Since Proteus dy-
namically allocates channels as needed, to eliminate ripoff you must
either, play fewer notes, use simpler sounds, turn off doubling (pri/sec,
chorus, or linked presets), or use MIDI overflow to another Proteus.
INSTRUMENT DEFINITION
If your sequence has a instrumental section using numerous chords, it
may be advantageous to use a basic preset without links or chorus. A
preset will sound much different alone than when combined with an
ensemble. Try to resist the temptation to make every sound as fat as
possible or you can wind up with "MIDI Soup"; a huge, stifling sound
with every possible audio frequency filled. A solo saxophone in a band
isn't chorused and it sounds great. Each voice in your composition should
have it's own identity. Save the monster sounds for solos or dramatic
effects.
Proteus operation manual