The recommended way to do this (especially under a very slow machine, like a V20/8088) is by using the UNISOUND configurator. Under DOS you can us the ESSCFG tool and tweak the volume via ESSVOL. This card is jumperless and must be configured before use. Am5x86 40/160Mhz / DOS 7.1 (Use UNISOUND, see Configuration section below).486DX 40Mhz / DOS 7.1 (Use UNISOUND, see Configuration section below).8088 4.77Mhz / DOS 6.22 (Use UNISOUND, see Configuration section below).8088 8Mhz / DOS 6.22 (Use UNISOUND, see Configuration section below).NEC V20 4.77Mhz / DOS 6.22 (Use UNISOUND, see Configuration section below).NEC V20 9.54Mhz / DOS 6.22 (Use UNISOUND, see Configuration section below).MIDI output via Joystick port (tested using DOSMID MPU mode on a Roland SC55).Stereo (left/right channel) check (Tested with Sound Blaster PRO Test program, digitized sound mode).✅ means I tested the functionality and it works, ❌ means I tested the functionality and found issues, ? means that the functionality has yet to be tested. You're encourauged to take what you deem fit from this, and use it in your projects! Functionalities Your computer might crash, catch fire or be destroyed in other nasty ways. I take NO responsibility for what happens if you decide to build and use this card. AUX in (internal header, since rev 1.2).This board provides the following connections: This chip provides Sound Blaster PRO 2.0 (stereo), OP元 compatibility (via ESFM), MPU-401 support and is considered one of the best chips used in clone cards. This is a sound card for the ISA 8bit bus sporting the ES1868F chip by ESS Technology.
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