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Owner’s manual
Model
4CH DIGITAL MIXER WITH DSP EFFECTS
Introduction
Thank you very much for having purchased the Fostex VM04.
This unit is a digital mini-mixer so the internal signal processing is all done digitally.
Its input section consists of four analog input channels including two that can take a
microphone. The output section, in addition to normal analog outputs like two channel
stereo outputs and a headphone output, also has an S/P DIF digital output via an optical
format with a 44.1kH
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VM04 Owner’s manual CAUTION: CAUTION TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE RISK OF ELECTRIC SHOCK OF PLUG TO WIDE SLOT, FULLY INSERT. DO NOT OPEN ATTENTION: POUR EVITER LES CHOCS ELECTRIQUES, CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE DO NOT REMOVE COVER (OR BACK). ET POUSSER JUSQU' AU FOND. NO USER - SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. The lightning flash with ar
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VM04 Owner’s manual Precautions (please read before use) Table of Contents Power supply Precautions..............................................................................3 * When unplugging the AC adaptor from the outlet, Let’s examine the VM04 in more detail...........................4 be sure to grasp the adaptor. Attempting to unplug 1. Input Section................................................................5 it by pulling on the AC cable may damage the 2. Buss Section...........
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VM04 Owner’s manual Let’s examine the VM04 in more detail. The basic rationale of an audio mixer is to be able to add more than two sounds together. The size of the mixer depends on the number of input and output channels it has, but the mixer’s role remains basically the same. There are various types of mixers depending on their purposes, e.g., recording mixers and P.A. mixers (Public Address system for live performances). These mixers have some additional features for the convenience of the
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VM04 Owner’s manual 1. Input Section As Channel 1 and 2 are identical in the VM04, let’s take Channel 1 as an example. In the VM04 block diagram, the input is on the left and output is on the right, i.e., the audio signal goes from left to right. First, look below where it says INPUT 1. You will see (-10dBV~-50dBV) written there. This is the signal voltage level that the input phone jack terminal can take. It is a range of voltage from as low as a microphone (-50dBV) to line level (-10dBV).
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VM04 Owner’s manual Before and after the FADER, there are two lines pointing downwards and to the right. These are the selector switches. In the diagram the line after the FADER has an arrow touching it. The line before the FADER is labeled PRE. The line after the FADER is labeled POST. With these switches, you can decide whether to send the audio signal to the internal EFFECT either before or after the FADER. If you choose “PRE”, the audio will be sent to the EFFECT even if you turn down th
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VM04 Owner’s manual After the MASTER FADER, there are two arrows pointing downwards and to the right labeled “METER”. The VM04 will extract the signal level at this point and display it in the LCD Display L/R level meters. In the opposite direction, upwards and to the right, there are two lines leading to the S/P DIF output square. This square sends out the digital signal via the optical output. The digital signal for the VM04 output is a 44.1kHz, 20 bit signal. Next in line are two rectang
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VM04 Owner’s manual 1. Names and Functions 3 12 4 56 7 R L 4 32 1 TRIM TRIM MIN MAX -50 -10 -50 -10 RESET 9V OUT DC IN S/P DIF FOOT SW PHONES OUTPUT INPUT 8 23 24 22 9 10 SCENE RECALL STORE SCENE No CH MASTER 21 MAX OL R 0 6 EFFECT FADER ADJUST 12 EQ TYPE PARAMETER 24 48 L 11 MIN 1 234 L R 123 4 PAN LO HI EFF 20 LEVEL VIEW EQ SETUP 12 CHANNEL EDIT 13 VIEW EXIT ENTER 14 19 1 2 3 4 MASTER 15 DATA MAX MAX MAX MAX MIN MIN MIN MIN 18 17 16 1. DC INLET connector 5. STEREO OUT L/R jacks To connect
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VM04 Owner’s manual 8. TRIM knobs 19. CHANNEL EDIT key These volume knobs control the input gain of Press this key to enter the CHANNEL EDIT MODE. INPUT 1 and 2 according to the incoming signal See CHANNEL EDIT MODE (page 15). level. Range: -10dBV~-50dBV. When you turn it clockwise, the gain will increase so that the Input 20. FADER ADJUST key socket can take low level signal inputs. When you have recalled a Scene, if the Fader position is different from the Scene setting, this 9. SCENE RECALL
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VM04 Owner’s manual 2. Before Use 2-1. Remove the insulation paper The VM04 employs a memory back up battery inside the unit. When you have newly purchased the unit, you will find a piece of insulation paper Insulation paper attached to avoid voltage dissipation in transit. So, when you start using the unit for the first time, turn ON the power and then remove the insulation paper in that order. 2-2. Caution when powering ON As the VM04 does not have a power switch, switching the power ON is do
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VM04 Owner’s manual 3. Applications Application 1: To expand the Analog channel input for recording You will be able to record up to 4 Analog S/P DIF channels on the FD-8 at once by connecting the VM04 S/P DIF output to the FD-8 DATA DATA IN S/P DIF IN. SCENE RECALL STORE SCENE No OL MAX 0 [ R ] 6 EFFECT You can also take advantage of the high FADER ADJUST 12 EQ TYPE PARAMETER 24 [ L ] 1 234 L R 123 4 MIN PAN LO HI EFF LEVEL VIEW EQ SETUP CHANNEL EDIT VIEW EXIT ENTER quality internal digital eff
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VM04 Owner’s manual Application 5: For one take live studio recording You can use the VM04 to send the mixed digital audio via the S/P DIF to a DAT or PC with Digital In. You can also add the internal Keyboard digital effect when mixing audio. PC audio board w/digital IN SCENE RECALL STORE SCENE No OL MAX 0 [ R ] 6 EFFECT FADER ADJUST 12 EQ TYPE PARAMETER 24 1 234 L R 123 4 [ L MIN ] PAN LO HI EFF LEVEL VIEW EQ SETUP S/P DIF CHANNEL EDIT VIEW EXIT ENTER 1 2 3 4 MASTER VM04 DATA DIGITAL MINI MIXE
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VM04 Owner’s manual 4. Initial Setting When you first power up the VM04, the LCD Display will show the following initial setting. Scene Number display This section will numerically indicate Master Fader display Character section of the LCD Display the Scene Memory number on a This part will numerically indicate the It will show , then, range from 00 to 20. The initial Master Fader position on a range from “Init.Mix”. default setting will be displayed as 00 to 99. The initial setti
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VM04 Owner’s manual 5. Normal Mix Mode This is the mode in which only the INPUT and MASTER Faders will work. Raise both the INPUT Fader of the channel that has the incoming signal connected and the MASTER fader. The audio signal will start coming out at the STEREO OUT L and R and S/P DIF Optical output. If you have a pair of headphones connected to the Headphone Jack, you can hear the same audio signal here as well. Also, you can adjust the headphone level with the volume knob next to the Jack
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VM04 Owner’s manual 6. Channel Edit Mode This mode is used to set the PAN, EQ, EFFECT SEND and EFFECT POST/PRE on each input channel. The CHANNEL EDIT key on each input channel has exactly the same mode of operation. Therefore, we will discuss their functions using Channel 1 as an example. Press the Channel 1 CHANNEL EDIT Key. The key itself will light up so that you will be able to confirm you have entered into the CHANNEL EDIT MODE. The LCD display will show the following message. Channel F
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VM04 Owner’s manual 6-2. EQ Lo Setting 1. Press the VIEW key so that the LO dot is flashing 2. Rotate the DATA ENCODER. If you turn it clockwise, the display on the Character on the VIEW Status Indicator. section will change to +1dB -> +18dB from 0dB The LCD Display will show the following message: and the bass sound will become louder. At the same time, the two dots on the EQ Lo indicator at the Character section center of the bar-graph will become a single dot This will display “1-Lo: 0”. This
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VM04 Owner’s manual 6-4. EFFECT SEND setting 1. Press the VIEW key so that the EFF dot is flashing 2. Rotate the DATA ENCODER clockwise. on the VIEW Status Indicator. The display on the Character section will change The LCD Display will show the following message: to 00 ~ 99 and the Effect sound will become louder. At the same time, a flashing dot will appear on the Character section Channel 1 VIEW display and move upwards. This will display “1-Eff: 0”. This means that you Indicates 0 ~ 99. can
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VM04 Owner’s manual 7. Effect Mode The VM04 carries 20 types of internal digital effects. You can also alter their parameter settings in detail. We will discuss the digital effects here. To fully understand their versatile effect functions, we recommend that you listen to the actual sound while reading the explanations below. The DSP effect section inside the VM04 employs the A.S. P. (Fostex Advanced Signal Processing Technology)*, which is exclusively developed by Fostex, and obtains high qual
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VM04 Owner’s manual 7-1. EFFECT TYPE setting SCENE RECALL STORE SCENE No CH MASTER MAX OL R 0 6 EFFECT FADER ADJUST 12 TYPE PARAMETER EQ 24 48 L MIN 1 234 L R 123 4 PAN LO HI EFF LEVEL VIEW EQ SETUP 4 CHANNEL EDIT VIEW EXIT ENTER 6 1 2 3 4 MASTER DATA MAX MAX MAX MAX 3, 7 MIN MIN MIN MIN 2, 5 1 5. Rotate the DATA ENCODER clockwise. 1. Raise the MASTER Fader and INPUT Fader of the You can see the following Effect types one after Channel you have the incoming audio signal another. Only the in
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VM04 Owner’s manual 7-2. EFFECT PARAMETER setting You can alter the parameter setting according to the Effect type. The parameters available in each Effect type. The available parameters differ according to the Effect type. These are discussed here. 1. Reverb related Effects 5. Combined Chorus/Reverb Effect The 12 Effects from 1:HallRev1 to 12:Stadium2 18:Cho+Rev is the Effect you get when Chorus are the Reverb related Effects. and Reverb are combined together. They have five parameters: This h
