manualshive.com logo in svg

4ms Dual Looping Delay, Руководство пользователя

Поделиться
Скачать
4ms Dual Looping Delay Скачать руководство пользователя страница 5

In math:

Time switch up:

 

Delay time = ([Knob x CV] + 16) x beat time

Time switch center:

Delay time =  (Knob x CV)       x beat time

Time switch up:

Delay time = ([Knob x CV] / 8)  x beat time

“Knob” ranges from 1 to 16
“CV” ranges from 1 to 16 if positive voltage is applied to the Time CV jack (0 to +5V)
“CV” ranges from 1 to 1/16 (0.0625) if negative voltage is applied to the Time CV jack (0 to -5V)

Note that with 0V on the CV jack (nothing plugged in), CV=1, so it has no effect on the knob's setting.

For example, tap a tempo of 0.5 second. This makes one 

beat

 be ½ second (120BPM).

Set the 

Time knob

 to 8, and the 

Time switch

 to center. If there is no CV plugged in, the delay time will be 8 beats, or 4 

seconds.
Now flip the 

Time switch

 down to “1/8”, the delay time will be eight 1/8th notes, or ½ second. 

Now turn the 

Time knob

 down to “2”, and the delay time will be two 1/8th notes or 0.125 seconds.

Now flip the 

Time switch

 up to “+16” and the delay time will be 18 beats, or 9 seconds.

Now apply some CV, the Time will get slower as you apply positive CV, and faster as you apply negative CV.

Setting two channels to different delay loop periods that are multiples of the same clock can result in very interesting phasing 
arrangements!

Loop start and stop points

When 

Infinite Hold 

is on, changing 

Time

 will change the loop start point in order to make the loop the new length. If you hold 

down the 

Reverse

 button while changing Time, you will change the loop end point. You also can use this to change a loop 

that's, for example, 4 beats long into one that's 5 beats long, in two different ways (adding a beat to the end, or to the 
beginning). There are many creative possibilities to be explored with adding and subtracting from the beginning and/or end of 
a loop. One idea is to “inchworm” up and down memory. If you want to move more quickly than an “inchworm”, try windowing: 
see the section below on 

Windowing.

Delay Feed

Delay Feed 

is the amount of signal from the In jack that's recorded in memory. You can think of it as “Record 

Level” or “Input Level”, but there is one important detail to remember:

Delay Feed

 doesn't effect the 

Dry

 signal (which is what's present on the 

Out 

jack when the 

Mix 

knob is set to 

Dry

). It just effects how much signal is laid down or recorded. This detail is intentional because when doing 

sound-on-sound techniques, you can play a sound continuously in the 

Dry

 channel while modulating 

Delay 

Feed

 to fade in portions of the signal onto the loop.

The knob and CV jack are added together and have a maximum combined value of 100%. Negative voltage on the CV jack is 
ignored. Note that in 

Inf Hold

 mode, 

Delay Feed

 has no effect since there is no recording.

Feedback

Also known as “regeneration”, “echo amount”, and other names, feedback

 

is a common feature on delay 

effects. Feedback is the amount of signal read from memory that's written back to memory in a different 
location. This new location will be read again in the future, and written back again at yet another location in 
the future. Take a look at the block diagram on the back page to see how 

Feedback

 fits into the signal flow.

On the DLD, 

Feedback 

ranges from 0 to 110%.

With no feedback (knob at 0), and you will hear one echo. As you turn 

Feedback 

up, you will gradually hear 

more and more echoes (the amount of time before the echoes go to silence will increase).
With 

Feedback

 at 100%, the signal read from memory is written back to memory unaltered. Thus, the echoes will never fade 

out — an infinite loop. But if you input a signal on the 

In

 or 

Return

 jacks, they will add to the feedback signal, which can result 

in the sound gradually getting louder and louder as sound is added but never reduced. The knob's range has been modified 
to create a large area which is exactly 100%.

With 

Feedback 

at 110%, the signal read from memory is boosted before written. This makes the echoes louder and louder 

each time. For short delay times, this is a well-known “blooming echo” effect used in various styles of music including Dub 
Reggae.

Note that in 

Infinite Hold

 mode, 

Feedback

 has no effect. However, see the section below on “Windowing” for the special 

usage of the 

Feedback

 knob and jack while holding down the 

Infinite Hold

 button.

The knob and CV jack are added together, and are have a maximum combined value of 110%. Negative voltage on the CV 
jack is ignored. If the knob is set to 0%, then applying a voltage of 5V or greater will cause a 

Feedback

 amount of exactly 

100%. This is to allow for easy CV control of accessing 100% 

Feedback

 (any voltage greater than 5V = 100%, if the knob is 

set to 0)

Mix

Mix

 controls the blend between the Dry signal and the Wet signal on the 

Out

 jack. It does not effect the 

Send

 

jack. The Dry signal is taken directly from the 

In 

jack (and not the 

Return

 jack) before the 

Delay Feed 

parameter has any effect. 

See the block diagram on the back page of the manual.

Mix

 does not have a CV jack, but starting in firmware v4, there is an option to make the 

Delay Feed

 CV jack 

control 

Mix

 instead (see 

System Settings

 section).

5

Содержание Dual Looping Delay

Страница 1: ...essly with modular timebase and sequencing devices such as the 4ms Quad Clock Distributor QCD etc Two channels each with nearly 3 minutes maximum delay loop time at 48kHz 16 bit option for 24 bit Extremely quiet low noise low jitter design Stereo cascading or dual independent mono use Delay and loop time is sync able to a clock or a division or multiplication of a clock Infinite Hold mode for loop...

Страница 2: ...utput Buffer can be cleared with a button press 20HP Eurorack module Controls and jacks Channels A and B are identical and separate except for the common clock and audio normalizations Controls Ping button Tap a tempo to set the base clock one beat Base time can also be set by an external clock Time knob per channel sets the loop time in number of beats Ranges from 1 to 16 Time switch per channel ...

Страница 3: ...g jack The VCO should be in the low or mid audio range less than 2kHz 250 500Hz is ideal Feed a signal into the In jack noise works well so do triggers 10V triggers will resonant more 5V triggers are barely enough to trigger the resonance Use the Time switch and knob to set the Pitch Feedback sets the resonance which determines the amplitude of the pitch and Delay Feed effects the level and resona...

Страница 4: ...y the Ping button or jack Each channel can multiply divide or add to the base time by using the Time knob switch and CV Anytime the base time is changed by tapping the Ping button or changing the external clock both channels will instantly change tempo while maintaining the same ratio to each other Channel normalizations The main In A jack feeds into the switch tab of the main In B jack Therefore ...

Страница 5: ...de in portions of the signal onto the loop The knob and CV jack are added together and have a maximum combined value of 100 Negative voltage on the CV jack is ignored Note that in Inf Hold mode Delay Feed has no effect since there is no recording Feedback Also known as regeneration echo amount and other names feedback is a common feature on delay effects Feedback is the amount of signal read from ...

Страница 6: ...ily The loop is more dynamic and mutable versus when Infinite Hold is on the loop is more static and immutable Reverse Reverse reverses the direction that memory is read and written Pressing the Reverse button toggles Reverse on off when the button is released If you turn a knob while Reverse is held down the Reverse action will be cancelled this is because holding a button while turning a knob is...

Страница 7: ...oll back very far even more quickly than Tip 1 change the Time parameter to very long perhaps flip the time switch up to 16 Since turning Feedback Infinite Hold scrolls by one loop size making the loop size enormous lets you scroll by enormous amounts with just one knob twist You can scroll back a maximum of 2 minutes 54 seconds Tip 3 Set Time to a very short period and window around a loop with C...

Страница 8: ...atch a manual CV source into the Delay Feed B CV jack It can be a Pressure Points or an FSR pressure output or perhaps an envelope output that s triggered manually When you press on the Pressure Points or FSR you will bring up the Delay Feed parameter which causes audio to be recorded onto the loop Since Feedback is at 100 the loop is infinite and everything you lay down will remain but take care ...

Страница 9: ...k and use the Mix A knob to blend between the dry signal and Channel A s delay Reverb y echo room Patch as shown on the left Try setting one channel s Time to a fast delay such as 1 with the Time switch flipped to 1 8 Set the other Time to a slow delay such as 8 Set both channel s feedback amounts to around 75 90 Take the output from Out B Tap a very fast tempo as fast as your finger will go While...

Страница 10: ...ts Feedback with External Processing The classic use of Send and Return ports in a time delay processor is to provide a side chain for modifying the delayed signal before it is returned to the input mix Probably the most classic application of this kind of side chain processing is a simple low pass filter in the feedback path This causes succeeding repeats to soften with less high frequency conten...

Страница 11: ...e reset it back to the start and tap Reverse A button to reset The Hold A button should light up Play the file from the beginning again 6 If the file loads successfully the DLD will immediately start running In some cases you may need to do a Factory Reset see Factory Reset section Estimated late June 2016 the open source licensed source files in C for compiling with gcc arm can be found at https ...

Страница 12: ...pulse width In this mode the loop lights and Ping light will each blink once in sequence A short flicker means the associated jack is in trigger mode and a longer blink means it s in gate mode The associated button will also be lit to indicate gate mode or unlit to indicate trigger mode Gate Trigger output for Loop A jack Tap Reverse A to toggle mode Gate Trigger output for Loop B jack Tap Reverse...

Страница 13: ...switches up hold down all five buttons for 8 seconds Calibration Mode Your DLD has been calibrated at the factory and should not need re calibration Hardware hackers should be aware that the calibration data is stored in FLASH memory at 0x08004000 to 0x08007FFF If this sector is erased the DLD will automatically re calibrate itself on boot Make sure nothing is plugged into any CV jacks the first t...

Страница 14: ... disabled Clock outputs Main Loop A Loop B 0V to 8 2V 2 4µs maximum jitter i e 0 001 at 120 BPM Rise or Fall time 1µs Pulse Width Trigger mode 22ms Gate mode 50 square wave At clock speeds faster than 22Hz the clock output becomes 50 duty cycle Sampling 24 bit sample at 48kHz 32 bit processing 16 bit storage in RAM 256Mbit nonvolatile SDRAM chip for a maximum of 2 minutes 54 seconds per channel 6m...

Страница 15: ...t Gate Triggers for clock outputs Dim the loop LEDs Re assign Delay Feed CV jacks to Mix Enable disable auto mute and soft clipping Adjust 1V oct tracking No clicking when doing a Reverse or exiting Infinite Hold mode Exiting Infinite mode quickly crossfades to play from the beginning of the loop Fixed the loop lights so they display better at high speeds 15 ...

Страница 16: ...16 ...

Отзывы:

Нет отзывов

Бренды по названию

Популярные бренды

Загрузить еще бренды