TASCAM DR-40 57Recording 4 channelsYou can use the built-in mics with connected external mics orequipment to record four independent channels as two stereorecording files (channels 1/2 and 3/4).Making 4-channel recording settings1 Press the REC MODE button to open the REC MODEscreen.2 Use the + and – buttons to select REC MODE, and pressthe ENTER/MARK or / button.3 Use the + and – buttons to set it to 4CH.4 Press the . button to return to setting itemselection.5 When using MS mics, use the + and – buttons to selectMS DECODE, and press the ENTER/MARK or / button.Use the + and – buttons to set MS DECODE to ON.6 Press the . button to return to setting itemselection.7 Use the + and – buttons to select DELAY, and press theENTER/MARK or / button.8 Use the + and – buttons to set the value according tothe distance between the built-in mics and externalmics.Options: INT 30ms (10m) – EXT 30ms (10m) (defaultvalue: 0ms (0m))The values are in milliseconds (ms) and meters (m).NOTEIf the built-in mics (channels 1/2) are far apart from the•external mics (channels 3/4), a time delay will occur inrecording. Use the DELAY setting to eliminate this timedelay in recording.If the sound source is closer to the built-in mics, use an• INTXXms (XXm) setting according to the difference in distanceto the external mics.If the sound source is closer to the external mics, use an• EXTXXms (XXm) setting according to the distance to the built-in mics.9 When setting is complete, press the (HOME) [8]button to return to the Home Screen.4 – Recording