Early Energy Conditions in Small Rooms and in Convolutions of Small-Room Impulse Responses

el-Banna Zidan H, Svensson UP. Early Energy Conditions in Small Rooms and in Convolutions of Small-Room Impulse Responses. In: AES Convention 129. Audio Engineering Society; 2010. Paper 8223. Available from: https://aes.org/publications/elibrary-page/?id=15645

@inproceedings{elBannaZidan2010_15645,
  author = {el-Banna Zidan, Hassan and Svensson, U. Peter},
  title = {{Early Energy Conditions in Small Rooms and in Convolutions of Small-Room Impulse Responses}},
  booktitle = {AES Convention 129},
  note = {Paper 8223},
  year = {2010},
  month = nov,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=15645}
}

TY  - CPAPER
TI  - Early Energy Conditions in Small Rooms and in Convolutions of Small-Room Impulse Responses
AU  - el-Banna Zidan, Hassan
AU  - Svensson, U. Peter
T2  - AES Convention 129
M1  - Paper 8223
PY  - 2010
DA  - 2010/11/06
UR  - https://aes.org/publications/elibrary-page/?id=15645
PB  - Audio Engineering Society
LA  - en
AB  - A simplified prediction model for the early-to-late energy ratio has been tested for small rooms that are typically used in video conferences. The prediction model is a modified diffuse-field model, using Barron’s revised formula for a distance-dependent reverberation level, together with Vorländer’s revised formula for a constant reverberation level. Measurements have been carried out in a few rooms and early- and total-energy levels have been compared with predictions according to the simplified model and predicted octave-band levels are typically within 1 dB of measured values, for the frequency range of 250 Hz to 2 kHz. Measured impulse responses were then convolved to simulate a video conference setup and simplified predictions of the early-to-late energy ratios, C50, for convolved impulse responses gave prediction errors that were on average around 1.5 dB as compared with (convolved) measurements.
ER  -