Riding my mountain bike on gravel trail at Baylands Nature Preserve in Palo Alto CA. Recorded on my Galaxy Note 2 cellphone. Edited in CyberLink Power Director 13. This is actually two separate tracks equalized differently to accentuate the crunch of the gravel, and to minimize wind noise. Output in mono. 2015.09.11在gravel.wav的登山車 聲道:2 類型:wav field-recording、gravel、mountain-bike 現場記錄、碎石、山地自行車 資料來源:freesound ( https://freesound.org )