A Future without Feedback?

Transcription

1 A Future without Feedback? Hiro Ikeda

2 Yamaha AFC System Microphones Speakers Various Acoustics for Various Performances Arkas SASEBO

3 We need to struggle with Feedback Microphone Speaker

4 We need to struggle with Feedback Microphone Speaker

5 Reduce the Acoustic Feedback or Electric Gain Acoustic Feedback More Flexibility for More Gain or FIR/IR Closer Mic/SP Directional Mic/SP

6 Reduce the Acoustic Feedback or Electric Gain Acoustic Feedback More Flexibility for More Gain or FIR/IR Closer Mic/SP Directional Mic/SP Multiple Systems More Energy with Same Loop Gain

7 Reduce the Acoustic Feedback or Electric Gain Acoustic Feedback More Flexibility for More Gain or FIR/IR Closer Mic/SP Directional Mic/SP MIX Multiple Systems More Energy with Same Loop Gain

8 Reduce the Acoustic Feedback or Electric Gain Acoustic Feedback More Flexibility for More Gain or FIR/IR Closer Mic/SP Directional Mic/SP Multiple Systems More Energy with Same Loop Gain

9 EMR Electronic Microphone Rotator EMR Microphones Speakers

10 Application 1: La Folle Journee au Japon Tokyo International Forum: Hall A

11 Application 1: La Folle Journee au Japon

12 Application Map Opera Stage Configuration Fixed Purpose of the system Enhancement Orchestra Variable Musical /Cirque Various Synthesis

13 Application Map Opera Stage Configuration Fixed Purpose of the system Enhancement Reverberation Orchestra Variable Musical /Cirque Synthesis Various

14 Application Map Opera Stage Configuration Fixed Purpose of the system Enhancement Reverberation Orchestra Early Reflection Variable Musical /Cirque Synthesis Various

15 Application Map Opera Stage Configuration Fixed Purpose of the system Enhancement Reverberation Orchestra Early Reflection Variable Musical /Cirque Virtual Acoustic Synthesis Various

16 Application 2: Renaissance Active field control using sound field generation techniques, ICA 2013 Montreal, T. Watanabe et.al Tenku Theater, Tokyo 500 seats Basilica di San Marco Venezia RT60=5s Venetian Fantasy Looking for an acoustic of Basilica di San Marco

17 Convolution with Measured Impulse Response Sound Source Active field control using sound field generation techniques, ICA 2013 Montreal, T. Watanabe et.al Reproduction Field Measured Impulse Response

18 Tenku Theater with 500 seats Active field control using sound field generation techniques, ICA 2013 Montreal, T. Watanabe et.al Absorption Panel on the Stage Relative Level (db) Applied Data in the Reproduction Field IR Modification Target Data Based on Convolution Data (Original Data * Reproduced Speaker Characteristics) Original Data Measured in the Target Field Time const.=25 ms, 1 khz Time (sec) Orchestra on Stage

19 Active field control using sound field generation techniques, ICA 2013 Montreal, Watanabe et.al Application 2: Renaissance - Results ASW LEV Sim.: Original Sim.: Original Sim.: Modified Sim.: Modified Meas.: Original Meas.: Original Meas.: Modified Meas.: Modified Meas.: System OFF Meas.: System OFF Psychological Scale Clarity Psychological Scale Sound Source Sim.: Original Sim.: Modified 6ch Microphone System Meas.: Original Meas.: Modified Meas.: System OFF Psychological Scale

20 Solutions for Applications Fixed Opera Stage Configuration Purpose of the system Enhancement EMR Reverberation Orchestra FIR Early Reflection Off Mic&SP Variable Directional Mic/SP Musical /Cirque IR Virtual Acoustic Synthesis Closer Mic&SP Various

21 Future Works to do How to Control FIR/IR More ER for Performers, when more RT for Audiences Room Impression, Visual Cue More Tools Auto Tuning Singing Detection Voice Lift Turn on and Enhanced Like Lighting or Air Conditioning Could be more effective with Dynamic Processing

22 Demo Systems Yamaha Artist Services Inc. New York Piano Salon Yamaha Artist Services Frank Sinatra School of the Art Tony Bennett Concert Hall Both in Tony Bennett Concert Hall

23 SHARING PASSION AND PERFORMANCE