SansTrumpet User`s Manual
Contents
1. ring finger As with the trigger sensor each bend of the valve sensors correspond to the valve being pressed or not Thus calibration allows the desired valve on positions to be set To calibrate the valve sensors Figure 10 Valves Calibration Technique 1 Mm Figure 10 Valves Calibration Technique 2 e Step 1 Put on the right glove e Step 2 Bend the valve fingers to the on position of your choice o Shown with a 30 degree angle in relation to the knuckle e Step 3 Press and Hold the Valve Calibration Button 11 for 3 seconds until the Calibration LED 8 flashes once Note If any sensor is replaced with a new sensor calibration must be repeated for that particular sensor 12 4 Playing Technique The playing technique of the SansTrumpet can best be described by relating it to that of a physical trumpet The Embouchure represented by the proximity sensor on the left hand palm or one s lip tightness corresponds to the instrument s pitch register As explained in the previous section there are 6 pitch registers that have their own exclusive pitches which are achieved by the distance of the player s left hand from the ground The Valves represented by flex sensors on the right hand correspond to the valves of a trumpet A valve press is accomplished by bending the selected valve past the on position performed in calibration o The exact pitch that is desired is formed by the combina2. off and start a new set of pitch pitches bring the index finger back to the reset position To switch between Single Note Mode and Sustain Mode simply step on the Sustain Pedal switch 13 Also a real trumpet has the capability of going out of tune after a certain period of performing which can devastate a precious moment of creativity Don t worry about that for the SansTrumpet you re always in tune Thanks MIDI 14 5 Removing a Sensor Ifa sensor fails to operate or breaks for any reason each sensor can easily be replaced The flex sensors are more liable to wear and tear because of their mechanical integrity while the proximity sensor may be damaged by liquid substances because of its electrical components Each flex sensor located on the right hand and index finger of the left hand can be replaced by the following steps e Step 1 Disconnect the Glove Sensor from the Interconnect e Step 2 Remove the lace button located near the sensor sleeve and unravel the lace wound around the sensor e Step 3 Pull out the sensor from the sleeve When a new sensor is acquired reverse the following steps to replace the sensor When lacing back the sensor to its appropriate button go over under and around the sensor before buttoning Unfortunately if the proximity sensor is damaged a new left hand glove will have to be purchased because the proximity sensor is sewn into the glove Note As explained in the Calibration section t
3. ranges between the waist and shoulder However by using the Particular Register method 4c if the player only would like to play in say embouchure registers 3 to 5 by slowly raising your hand for about 2 seconds the desired range of registers is now more easily distinguishable and simpler to reach 10 3 2 Trigger Calibration The hands of the player relate both to how the pitch is triggered and the valves setting of a trumpet The trigger sensor determines when and how hard velocity the pitch is triggered which is dependent on the bend of the flex sensor at the index finger of the left hand Calibration allows the user to form the velocity range of the sensor in a similar sweep fashion as the embouchure sensor To calibrate the trigger sensor Figure 8 Trigger Calibration Technique 1 Figure 9 Trigger Calibration Technique 2 e Step 1 Put on the left glove e Step 2 Keep your hand and index finger straight e Step 3 Press and Hold the Trigger Calibration Button 9 for 3 seconds with your right hand until the Calibration LED 8 begins flashing e Step 4 Calibration Technique o When the LED begins flashing gradually close your index finger to approximately to a 90 degree angle in relation to the knuckle in a 3 second sweep 11 3 3 Valves Calibration The three middle fingers of the right hand correspond to the valves of the trumpet Valve 1 index finger Valve 2 middle finger Valve 3
4. SansTrumpet User s Manual by Anthony Mastromattei Thomas Nguyen Date 5 1 14 Introduction The following text discusses the instructions to play the SansTrumpet the glove based MIDI controller trumpet This document will highlight how to power the device necessary connections calibration playing technique how to remove a sensor and finally how to make a time machine oops scratch that Please read the instructions below to begin playing the instrument Note Refer to the full report for further text The full report can be found by searching the title Sans Trumpet and the names of the team members Anthony Mastromattei and Thomas Nguyen in the e projects area at the WPI Gordon Library 1 Product Diagram CONTROL UNIT q KK JO wa EN NG ain SUSE valve1 valve 3 KS Figure 1 Control Unit Figure 2 1 USB Port 2 Sustain Port 3 Trigger Port 4 Embouchure Port 5 Valve 1 Port 6 Valve 2 Port 7 Valve 3 Port 8 Calibration LED 9 Trigger Calibration Button 10 Embouchure Calibration Button 11 Valves Calibration Button 12 Mechanical Clip GLOVES e Left Hand Figure 3 Left Hand Glove o Trigger 3a Trigger Interconnect to Control Unit 3b Trigger Interconnect to Glove Sensor 3c Trigger Glove Sensor residing in sensor sleeve o Embouchure 4a Embouchure Interconnect to Control Unit 4b Embouchure Interconnect to Glove Sensor 4c Embouchure Glove S
5. ensor on palm of left hand e Right Hand Figure 4 Right Hand Glove o Valve1 Sa Valve 1 Interconnect to Control Unit 5b Valve 1 Interconnect to Glove Sensor 5c Valve 1 Glove Sensor residing in sensor sleeve o Valve2 6a Valve 2 Interconnect to Control Unit 6b Valve 2 Interconnect to Glove Sensor 6c Valve 2 Glove Sensor residing in sensor sleeve o Valve 3 7a Valve 3 Interconnect to Control Unit 7b Valve 3 Interconnect to Glove Sensor 7c Valve 3 Glove Sensor residing in sensor sleeve SUSTAIN PEDAL bed Figure 5 Sustain Pedal e 2a Pedal Connector to Control Unit e 13 Pedal Switch 2 Setting Up e Step 1 Connect the USB cable from your computer to 1 e Step 2 Make all connections from Control Unit to Gloves and Sustain Pedal o Step 2a Sustain Pedal Connect 2a to 2 o Step 2b Trigger Connect 3c to 3b Connect 3b to 3a Connect 3a to 3 o Step 2c Embouchure Connect 4c to 4b Connect 4b to 4a Connect 4a to 4 o Step 2d Valve 1 Connect 5c to 5b Connect 5b to 5a Connect Sa to 5 o Step 2e Valve 2 Connect 6c to 6b Connect 6b to ba Connect 6a to 6 o Step 2f Valve 3 Connect 7c to 7b Connect 7b to 7a Connect 7a to 7 And the connections are all set 3 Calibration The SansTrumpet utilizes calibration to adapt to the player Since information regarding the height and hands size and dexterity of the player are essential to th
6. he replaced sensor must be re calibrated 15 6 All Systems Go You are now ready to play Read the following steps to put the device on your body Step 1 Detach the magnetic clip 12 from the back of the device and clip to the back waist region Step 2 Reattach the device to the magnetic clip 12 Step 3 Bring gloves and wires over arms Step 4 Put on gloves Step 5 Secure Interconnect with Velcro at wrist and elbow points Next open up the Digital Audio Workstation DAW of your preference GarageBand ProTools Logic etc and ensure that the device is recognized usually this is located in the Properties menu of the DAW Have fun 16 7 Developer s Notes In order to modify and implement the SansTrumpet source code the following programs are recommended for optimal compatibility The Arduino Development Environment can be obtained via the following link http arduino cc en main software Additionally the Teensyduino add on is required to interface with the Teensy microcontroller of the SansTrumpet The add on is located at the following link https www pjrc com teensy td download html Please refer to the software section of the full report for further details on the SansTrumpet software 17
7. is device the calibration accounts for the variability that may occur in these two aspects In addition every sensor varies slightly Note Please read the provided steps in their entirety prior to any calibration attempts to avoid confusion 3 1 Embouchure Calibration The proximity sensor on the left hand which points to the ground represents embouchure or lip tightness By varying the sensor s proximity to the ground the embouchure level is controlled in a similar manner as varying one s lip tightness In order to accommodate to the height of the user calibration is required Calibration allows for a particular range to be executed which is custom specified by the player The player can calibrate the proximity sensor in different ways for example if the player wants low pitches to correspond to close proximity to the ground and high pitches to represent a far proximity to the ground or vice versa Also if the player desires to play in a particular range and would like this range to be easily distinguishable he or she may calibrate the device in a certain technique to achieve this To calibrate the embouchure sensor Figure 6 Embouchure Calibration Technique 1 Figure 7 Embouchure Calibration Technique 2 e Step 1 Put on the left glove e Step 2 Face the embouchure sensor towards the ground e Step 3 Press and Hold the Embouchure Calibration Button 10 for 3 seconds with your right hand until the Calibrati
8. on LED 8 begins flashing e Step 4 Calibration Technique Choices o da Low Pitch Close to Ground High Pitch Far from Ground refer to Figures 6 and 7 When the LED begins flashing hold your left hand approximately waist high and gradually raise your hand until it reaches your shoulder in a 3 second span o 4b Low Pitch Far from Ground High Pitch Close to Ground When the LED begins flashing hold your left hand approximately shoulder high and gradually lower your hand until it reaches your waist in a 3 second span o 4c Particular Register using Low Pitch Close to Ground technique When the LED begins flashing hold your left hand approximately waist high and quickly raise your hand until it reaches the desired register At this point slowly raise your hand for about 2 seconds in the range that is desired and finally quickly raise your hand to your shoulder Note The embouchure calibration distributes 6 registers that represent the full key range of a trumpet in one 3 second calibration sweep The pitches that relate to each register are e Embouchure Register 1 Pitch Range F 3 to C4 e Embouchure Register 2 Pitch Range C 4 to G4 e Embouchure Register 3 Pitch Range G 4 to C5 e Embouchure Register 4 Pitch Range C 5 to E5 e Embouchure Register 5 Pitch Range F5 to A5 e Embouchure Register 6 Pitch Range A 5 to C6 Thus by utilizing technique 4a or 4b the embouchure registers are spread in even
9. tion of the embouchure register and valve combination This relationship is demonstrated below by Figure 11 Embouchure Register c CH D D E F F G G A A B VALVE FINGERING D UN bb WN RP Open 1 2 12 13 23 123 Figure 11 Valve Fingering Embouchure Levels for Trumpet The Trigger represented by a flex sensor on the index finger of the left hand corresponds to blowing into the trumpet Pitches are triggered by bending the index finger down to a particular position then bending up The velocity or how hard one blows into the trumpet is determined by how extreme the bend of the trigger is These positions were formed in calibration during the trigger sweep A pitch can be shut off by returning the trigger above the initial calibrated position known as the reset position Unlike a physical trumpet which is a monophonic instrument that only is able to play one pitch at a time the SansTrumpet can act as both a monophonic and polyphonic instrument by utilizing the Sustain Pedal When the LED on the Sustain Pedal is off this alerts the user that the device is in Single Note Mode Here like a 13 trumpet pitches can only be triggered one note at a time However when the player steps on the Sustain Pedal switch 13 the LED on the Sustain Pedal turns on alerting the user the device is in Sustain Mode Here multiple pitches can be triggered in succession while resonating to form chords To turn these pitches
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