A measurement set-up replicating a trumpet solo concert situation is arranged on stage by means of a music stand, a directive loudspeaker, and a microphone array. Spatial Room Impulse Responses are measured and analyzed to evaluate the acoustic impact of the music stand at the musician position, depending on the stand location and orientation. Results show that when the stand is orientated towards the receiver the sound level at high frequencies increases up to 9 dB. In some cases, the level of the stand reflection at high frequencies is higher than the source itself, due to its radiation characteristics. The effects of a possibly perceivable timbre change on stage are discussed.
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