Dear all I am planning an experiment at sea involving transmitting signals based on marine mammal calls to evaluate their usefulness, or otherwise, as active sonar or communications signals. In preparation I need to obtain a wide range of example calls. I am looking for both tonal calls from any whale species and echolocation clicks from sperm whales and orcas. For the present experiment I am not interested in mammals smaller than the orca. My requirements are simply: 1 The signal to noise ratio should be high enough to reliably separate the signal from the background. 2 I need to know the species and an indication of the circumstances when the recording was made. 3 I need to know if the recording was made on-axis with respect to the animal (especially for echolocation clicks). I can accept recording in almost any known format. If you think you can help, please contact me at [EMAIL PROTECTED] Thank you. ************************************************** Peter Dobbins PhD CEng FIOA Senior Consultant - Marine Division Systems Engineering and Assessment Ltd SEA House, Bristol Business Park, Coldharbour Lane Bristol BS16 1EJ Tel: +44 (0) 1373 852149 Mobile: +44 (0) 7949 836503 Fax: +44 (0) 117 937 5088 [EMAIL PROTECTED] www.sea.co.uk **************************************************
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