UL1uloop User`s Manual
Contents
1. e recording will be erratic and many noises and clicks will be on the sample Obviously the lower the sample rate the lower the bandwidth of the module cutting highest harmonic content The maximum length of the sample in the standard mode see the OPTIONS chapter would be of about 10s 8kHz The sample rate also impacts on another very important parameter that is the recording deadtime Between the rec signal or button press and the effective start of the recording lies a variable time that is proportional to the sample rate This is implicit in the chip functionalities and we took all the possible measures to reduce this time but there is a bottom line that is simly unavoidable If you want to sample stuff for rhythmic duties please use the highest possible sample rate remember three o clock setting On the contrary playback are trigger instantly and are tight timed The act LED indicator has the following meanings It will lit solid during recording phase and it will blink briefly whenever the end of the audio material is reached in both play and loop modes RECORDING mode After you have connected a source of sound to the input jack and wiggled the level pot to an adequate setting you can record your sample To do this you have to either PRESS the rec button or input an high level 5V to the rec soundmachines user manual 3 ULiluloop trigger input The module will record for all the time that the button2. enables the AUTOREPEAT mode for the sampler as described in the HUREN chapter The default position is not inserted Please e When the module the system is powered up if the rec button is pressed and kept that way for at least two seconds the module reads the soundmachines user manual 4 UL1luloop position of the tune pot and determines the maximum sampling times as per the following table this setting is NOT stored in non volatile memory o POT on zero position 2 5 secs 8kHz o POT on half position 20 secs 8kHz o POT on full position 40 secs 8kHz remember that in standard mode the max time is about 10 secs 8kHz soundmachines user manual 5 ULiluloop Note altough this is extremely boring stuff all the cited trade marks and registered product names are property of their legal owners CE soundmachines user manual 6 UL1luloop
3. hose values The module is protected to a certain extent to overvoltagaes but correct functions are not guaranteed and the module could be ruined Please use the supplied power cable The red conductor on the cable is connected to 12V supply rail as the standard implies Specifications soundmachines user manual 2 ULiluloop The soundmachines UL1uloop is a simple and very playable sampler looper with a basic set of controls An input attenuator level is setting the level of the audio material that gets recorded This setting is very important to obtain the maximum signal to noise performance input range of the chip is about 1Vpp The input and output jacks are the audio connection to the rest of the modular When the module is not playing the audio material what s present on the input pin is transferred to the output passing through the chip so you can hear what you re sampling When the playback of the material is active the input signal is no longer sent to the output The tune pot and cv input will determine the instantaneous sample rate This is valid either in rec and play mode There is a limitation to the range of recording sample rate and it is advised to set the knob to no more than the three o clock position to obtain a fairly good quality The sample rate in playback mode can go approximately from 6 5kHz to 22kHz Good recording could be achieved until 18kHz Over this frequency that s well beyond the chip rating th
4. is pressed the trigger input is high or the memory is full During the recording time the LED act will be on The considerations on the sample rate applies here PLAY mode Whatever you recorded is written on the internal flash memory of the chip and is available indefinitely the storage is non volatile to the user The play button or the jack input is a momentary high pulse trigger that start the playback of the ENTIRE sample in memory The playback could be interrupted before the end by applying another high pulse to the input or a push to the button Once reached the end of memory the playback stops and the module come back to the original state LOOP mode When you press the loop button the playback is started and is held until the button or the input is active If the end of the audio material is reached the playback starts from the beginning looping the sample indefintely until the button is released or the input de activated low state OV AUTOREPEAT mode jumper When the jumper on the back is inserted the behaviour of the module is changed and it will work in a sort of beat repeat mode When the user presss the rec button or the trigger input the module records the audio material When the user releases the button the module will start automatically to loop the material To stop the looping just press briefly the rec button again OPTIONS e The jumper on the back of the module if inserted
5. soundmachines E e level UL1uloop User s Manual e Introduction e Care and feeding e Specifications user manual soundmachines UL1luloop Introduction ULiuloop is a low fi gritty hissy and fun 4hp microsampler looper The core is based around a single chip solution designed for low fidelity consumer grade gadgets voice recorders and toys A microcontroller drives the chip following the user s commands and takes into account some quirks and odds that the manufacturer left in the device One of the characterising aspects of the module is its width It s just 4hp and it can fits in the same space of a multiple an attenuator or right in the hole that is left on your case It s also quite shallow at 35mm and it will sit happily also in your skiff A recording mode two modes of playing the sample either accessible via buttons or trigger signals an input attenuator and a pot and a cv input for setting the sample rate Those are the user interface elements to play with Care and Feeding Due to the space constraints the supply connector is just one row of contacts This is not a problem since the pinout comply with the standard Doepfer ribbon cable For your convenience you can read the pin meaning on the pcb and thus insert the cable in the right way The power consumption is approximately XXXmA on the positive rail and XXXmA on the negative All the trigger and CV inputs are rated at 0 5V Don t exceed t
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