www.kvraudio.com/news/chip32_v0_0_7_and_vopm_beta_released_1292
24th October 2003
Sam also recently released an experimental beta version of VOPM (An emulation of the Yamaha YM2151 (OPM) 4 operator FM sound chip) with the addition of Portamento and LFO delay.
KVR Audio, Inc.
www.kvraudio.com