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How to Make Remarkable Sound of Electrical Vehicles Inside out with Active Sound Design How to Play the Audio Files in This Document?

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How to Make Remarkable Sound of Electrical Vehicles Inside out with Active Sound Design How to Play the Audio Files in This Document? How to make remarkable sound of electrical vehicles inside out with active sound design How to play the audio files in this document? 1. Open the file in Adobe Acrobat Reader 2. Click on the loudspeaker icon and play the sound 3. If that doesn’t work, change the following settings: • In the menu, select Edit -> Preferences • Left menu: chose Security (Enhanced) • Under Sandbox Protections, uncheck the box for Enable Protected Mode at Startup • Under Enhanced Security, uncheck box for Enable Enhanced Security • Click OK and restart Adobe Reader Unrestricted © Siemens 2020 Page 1 2020-MM-DD Siemens Digital Industries Software Why adding sounds to the vehicle? BECAUSE YOU MUST BECAUSE YOU CAN ENSURE PROTECT BRAND STRIVE UNIQUE REDUCE COMPLIANCE REPUTATION BRAND VALUE COSTS Unrestricted © Siemens 2020 Page 2 2020-06-16 Siemens Digital Industries Software DESIGN VALIDATE & TUNE DEPLOY From brand sound to drivable sound model Validation in the vehicle Integration in production vehicle Granular synthesis | Order synthesis Real-time sound tuning Ready for mass production Brand sound Active sound In-vehicle Sound quality Audio amplifier Vehicle audio exploration model creation validation analysis tuning integration Interior sound Interior Brand sound AVAS model Frontloading In-vehicle AVAS Vehicle Regulation AVAS exploration creation compliance tuning integration validation Industrialization DESIGN VALIDATE & TUNE DEPLOY From brand sound Exterior sound Exterior Upfront compliance to standards Integration in production vehicle Unrestricted to© Siemenspedestrian 2020 warning system Real-time sound tuning Minimum noise certification Page 3 2020-06-16 Siemens Digital Industries Software DESIGN VALIDATE & TUNE DEPLOY From brand sound to drivable sound model Validation in the vehicle Integration in production vehicle Granular synthesis | Order synthesis Real-time sound tuning Ready for mass production Brand sound Active sound In-vehicle Sound quality Audio amplifier Vehicle audio exploration model creation validation analysis tuning integration Interior sound Interior Brand sound AVAS model Frontloading In-vehicle AVAS Vehicle Regulation AVAS exploration creation compliance tuning integration validation Industrialization DESIGN VALIDATE & TUNE DEPLOY From brand sound Exterior sound Exterior Upfront compliance to standards Integration in production vehicle Unrestricted to© Siemenspedestrian 2020 warning system Real-time sound tuning Minimum noise certification Page 4 2020-06-16 Siemens Digital Industries Software Brand Sound Exploration What direction to take in sound design? Exploration Towards rules From Jury Unrestricted © Siemens 2020 Page 5 2020-06-16 Siemens Digital Industries Software Software based Active Sound Design in early stage … SPEED TORQUE Unrestricted © Siemens 2020 Page 6 2020-06-16 Siemens Digital Industries Software Vehicle input parameters during sound model creation … SPEED TORQUE Manually enter parameters Use Driver profiles Define driving profiles: rpm torque 1. Basic anchor points 2. Models speed throttle ✓Fast & Easy ✓Easier for comparison during 3. Measure ✓Hard to compare during design design (no loop) ✓Realistic scenarios ✓Potential artificial scenarios DIGITAL BUS Unrestricted © Siemens 2020 Page 7 2020-06-16 Siemens Digital Industries Software Toolset with different approaches and layers for designing the sounds … SPEED TORQUE Classical Sounds, e.g. engine order alike? How to do design very creative sounds Be able to spice up the sounds? Without sounding artificial Unrestricted © Siemens 2020 Page 8 2020-06-16 Siemens Digital Industries Software Sequence of layers that generate final sound ADDITIONAL SPEED INFLUENCE TORQUE INFLUENCE REALISM Overcoming monotonic Classical approach pitch increase with speed Including perception of through shepard layer power into the sound generation Makes sure low frequent Advanced approach content remains in place Unrestricted © Siemens 2020 Page 9 2020-06-16 Siemens Digital Industries Software Two approaches for SPEED based layer First approach: Order Synthesis as “traditional” approach Order synthesis Additional signal manipulations Classical NVH sound generation parametrized in perceptions • Mimic or enhance orders of an internal combustion engine Order Added Variance • Generate sounds known Synthesis + Increasing liveliness and natural by the listener Roughness - Dirtyness • Possibility (must) to create multiple layers based on different vehicle Complex Sound Signature load cases Replication of brand identity Standard Sporty Race ASD off moderate ASD full ASD “Even without any real combustion engine orders present, this synthesis sounds very natural & authentic, where others we tested keep sounding synthetic” Unrestricted © Siemens 2020 Page 10 2020-06-16 Siemens Digital Industries Software Two approaches for SPEED based layer Second approach: “the sky is the limit” with granular synthesis Granular synthesis Music industry sound generation parametrized for NVH • Generate a sound that is rich and alive • Possibility to generate complex signatures in multiple layers Preloaded Sound Sample • Sound generation not linked to classical vehicle • Requires more experience Replay of Grains from sample with on sound design varying parameters, such as duration, pitch (function of Speed), position, … + randomization to make sound real and alive Unrestricted © Siemens 2020 Page 11 2020-06-16 Siemens Digital Industries Software Example Creating and tuning sounds with Granular synthesis Starting from … an elephant sound ✓Initial sample sound combined ✓Pitch rate adjustment with default settings ✓Grain position change ✓Initial pitch rate definition ✓Grain duration change ✓Initial grain position & duration. After first design iterations ready for in-vehicle testing Unrestricted © Siemens 2020 Page 12 2020-06-16 Siemens Digital Industries Software Overview of all layers Traditional Approach Sky is the limit Granular synthesis Order synthesis Music industry sound generation parametrized for Classical NVH sound generation NVH Layer Including combinations Speed of both Torque layer: to emphasize dynamic behavior of the vehicle, in function of engine load Shepard Layer: overcome monotonic pitch increase with speed. Low frequency content remains present. Unrestricted © Siemens 2020 Page 13 2020-06-16 Siemens Digital Industries Software DESIGN VALIDATE & TUNE DEPLOY From brand sound to drivable sound model Validation in the vehicle Integration in production vehicle Granular synthesis | Order synthesis Real-time sound tuning Ready for mass production Brand sound Active sound In-vehicle Sound quality Audio amplifier Vehicle audio exploration model creation validation analysis tuning integration Interior sound Interior Brand sound AVAS model Frontloading In-vehicle AVAS Vehicle Regulation AVAS exploration creation compliance tuning integration validation Industrialization DESIGN VALIDATE & TUNE DEPLOY From brand sound Exterior sound Exterior Upfront compliance to standards Integration in production vehicle Unrestricted to© Siemenspedestrian 2020 warning system Real-time sound tuning Minimum noise certification Page 14 2020-06-16 Siemens Digital Industries Software What sounds good in the studio must be validated in the vehicle unit Vehicle unit In-vehicle tuning CAN BUS Unrestricted © Siemens 2020 Page 15 2020-06-16 Siemens Digital Industries Software In-vehicle tuning Creating and tuning sounds with Granular synthesis ✓Filtering in function of speed and torque ✓Torque layer adjustments ✓Shepard layer modification ✓High-pass filter in torque layer ✓Constant drive gain ✓Grain duration change Final designed sound ready for industrialization Unrestricted © Siemens 2020 Page 16 2020-06-16 Siemens Digital Industries Software After tuning – leave the in-vehicle unit in the vehicle for final validation Vehicle unit CAN BUS Unrestricted © Siemens 2020 Page 17 2020-06-16 Siemens Digital Industries Software Tuning on a driving simulator Can you evaluate & tune the Sound model without having a prototype available? Could you evaluate sound model for another variant of the vehicle without having this available? What would be the impact of control parameters on the sound? Towards the driving simulator Unrestricted © Siemens 2020 Page 18 2020-06-16 Siemens Digital Industries Software Active Sound Design on the vehicle simulator Performance Model NVH Model Rpm1, speed, Definition of vehicle driving behavior torque, Definition of sound built up from different From classic towards complex xEV %pedal, gear, noise component driveline .. Rpm 2, .. Powertrain USER Road g(t) Wind Rpm, speed, torque Evaluate driving alternatives by tuning Throttle, Gear Simcenter Amesim models Can Sound Design hardware Sound or Simcenter Testlab Sound Designer on pc Unrestricted © Siemens 2020 Page 19 2020-06-16 Siemens Digital Industries Software How to measure the ASD results? Binaural recordings Measure audio in combination Requires artificial head or a with other vehicle signals (CAN- binaural headset Acquisition BUS, Engine speed, GPS, etc.) Audio Replay Real-time stereo audio replay Unrestricted © Siemens 2020 Page 20 2020-06-16 Siemens Digital Industries Software Application Example: Electric Vehicle Original – combustion sound – granular synthesis sound Original EV sound is very silent Make it sound like an ICE using order synthesis Use granular synthesis for a more complex sound Unrestricted © Siemens 2020 Page 21 2020-06-16 Siemens Digital Industries Software Sound Quality Analysis Subjective evaluation of Active Sound Design
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