Manual Dsp 88

Transcript

IMPORTANT SAFETY INSTRUCTIONS When using this electronic device, basic precautions should always be taken, including the following: 1. Read all instructions before using the product. 2. Do not use this product near water (e.g., near a bathtub, washbowl, kitchen sink, in a wet basement or near a swimming pool etc). 3. Use this device when you are sure that digital signal processor has a stable base and it is fixed securely. 4. This product, in combination with loudspeakers and amplifier may be capable of producing sound levels that could cause permanent hearing loss. Do not operate for a long period of time at a high volume level or at a level that is uncomfortable. If you experience any hearing loss or ringing in the ears, you should consult with otorhinolaryngologists. The product should be positioned so that proper ventilation is maintained. 5. The product should be located away from heat sources such as radiators, heat vents, or other devices (including amplifiers) that produce heat. 6. The product should be connected to a power supply that is described in the operating instructions or are marked on the product. Replace the fuse only with one of the specified type, size and correct rating. 7. The power supply cord should be undamaged and never share an outlet or extension cord with other devices so that the outlet or extension cord's power rating is exceeded. Never leave device plugged into the outlet when it is not being used for a long period of time. 8. Care should be taken so that objects do not fall into, and liquids would not be spilled through, the enclosure's openings. 9. The product should be serviced by qualified service personnel if: • • • • The power supply cord or the plug has been damaged. Objects have fallen into or liquid has been spilled on the product. The product has been exposed to rain. The product has been dropped or the enclosure damaged. 10. There are some areas with high voltage inside, to reduce the risk of electric shock do not remove cover of the device. The cover should be removed by the qualified personnel only. No user serviceable parts inside. CONTENTS: Before you start Introductions Features 4 4 Operation Front panel Rear panel Function description Powering up the device Operating the channel menus Operating the system menus Quick Reference PC Control Software Firmware upgrade 5 5 6 7 8 13 18 19 23 Specifications General specifications 24 Introduction The DSP 88 is a digital loudspeaker management system designed for the touring or fixed sound installation markets. The absolute latest in available technology is utilized with 40-bit floating point processors and high performance 24-bit Analog Converters. The high-bit DSP prevents noise and distortion induced by truncation errors of the commonly used 24-bit fixed-point devices. A complete set of parameters include I/O levels, delay, polarity, 8 bands of EQ per channel, 31 bands of GEQ per input, multiple crossover selections and full function limiters. Precise frequency control is achieved with its 1 Hz resolution. Inputs and outputs can be routed in multiple configurations to meet any requirement. The DSP 88 can be controlled or configured in real time on the front panel or with the intuitive AMC DSP Software Control accessed via the RS-232, USB or Ethernet interface. Software upgrade for CPU and DSP via PC keeps the device current with newly developed algorithms and functions once available. Multiple setup storage and system security complete this professional package. Features • • • • • • • • • • • • • • • • • Up to 8 inputs and 8 outputs with flexible routing. 40-bit floating point DSP. 96 kHz sampling rate. High performance 24-bit A/D converters. 1 Hz frequency resolution. 8 equalizers for each input and output. 31 bands GEQ for each input. Multiple crossover types with full function limiters. Precise level, polarity and delay. CPU and DSP upgrade via PC. Individual channel buttons with linking capability. 2-Line x 16 character backlit LCD display. Full 5-segment LED’s on every Input and output. Storage of up to 30 preset setups. Security lock. Ethernet, USB and RS232 Interface for PC control and configuration. Mic preamps + phantom Power for each input. Front Panel 1. 2. 3. 4. USB connector RS232 connector Mute (channel button) Audio signal meter 5. 6. 7. 8. Channel menu LED LCD display Menu buttons Rotary selector Rear Panel 1. Power connector with power switch and AC fuse (T2,5AL 250V) 2. Ethernet connector 3. Balanced universal Phoenix outputs 4. Balanced universal Phoenix inputs Functions description USB This is a standard Type B USB connector. Device driver from the provided software CD must be installed prior to usage. RS232 This is a standard female DB \9 socket. A straight through cable is required for PC connection. Mute (Channel Menu) Buttons This button is for mute or un-mute input and output channel. When an input channel is muted, a red LED comes on for indication. When the <> key is held down, the Mute Buttons selects the corresponding channel for the LCD menu display and is acknowledged by a green LED below the button. The last modified menu will be displayed on the LCD. Multiple channels can be linked or unlinked by pushing the desired channels. This eases programming for same parameters across multiple channels. Multiple Inputs can be linked together and multiple outputs can be linked together. Inputs and Outputs are linked separately. Channel Menu LED Menu LED indicates the activated channels for data modification. Peak Level LED Peak LED indicates the current peak level of the Signal: Signal, -12dB, -6dB, -3dB, Over/Limit. The Input Limit LED references to the device's maximum headroom. The Output Limit LED references to the threshold of the output limiter. LCD Display shows all the necessary information to control the unit. Menu Buttons There are 6 menu keys: <> Go to next menu screen. Holding this button down while pressing Mute key you go to the specify channel menu. <> Go to next cursor in the menu screen. Enter/Sys Enter/Sys is used only in the System Menu to proceed with selected actions. Sys enters the System Menu from the main menu. Exit Exit to the Main Menu. Rotary Thumb Wheel Rotary thumb wheel changes parameter data values. The wheel has travel velocity sensing which ease large incremental data modifications. For modifying delay and frequency (1 Hz resolution), pressing the Enter/Sys key simultaneously will increment/decrement the data value by 100 times. Main Power Connects via a standard IEC socket. A compatible power cord is supplied with the unit. Main Fuse T2.5A-250V. Slow blow type. Power switch Controls power On/Off. Ethernet This is RJ45 connector for Ethernet control. The device should be connected to a router/switch/hub via a straight through CAT-5 cable. Analog Inputs and Outputs Separate phoenix connectors are provided for each audio input and output. The device's output stage employs the balanced impedance topology. Powering up the device After powering up the unit, the following initialization screen is displayed on the LCD The initialization process takes several seconds and during that period the unit boots and displays the device model and firmware version. After the initialization process is finished the XP displays its main screen: The screen shows the current program number and program name assigned to the unit. If the program number ends with *, it means that no program is assigned, the last data before previous power down is recalled instead. Operating the channel menus Please hold the Menu >> button and then, press the mute button of the input or output channels if you want to activate the channel menu. Channel Linking – while holding down the <>, more than 1 channel from the same group (Input or Output group) can be selected to link the channels together. The green LEDs below the Mute buttons are lit for the linked channels. Any modification of the data for the selected channel will be applied to the linked channels as well. To cancel the linking, simply deselect the desired channel while the <> key is still pressed, or just press the Exit key to deselect all channels. Input microphone gain The level (or gain) ranges from 0dB to +45dB in 3dB steps. This level will only have an affect on the input channel when MIC Input is selected from the System Menu. Input / output signal LEVEL: The level (or gain) ranges from -40.00dB to +15.00dB in 0.25dB steps. POL: The polarity (or phase) can be normal (+) or inverted (-). DELAY: The maximum delay permitted is 650ms, in steps of approximately 10us. It can be displayed in ms, ft or m. The time unit of the delay is set in the system menu. Input / output equalizer EQ#: BYPASS: Each input channel has 8 bands of equalization. This control selects one of the 8 available bands. This control will un-bypass (Off) or bypass (On) the currently selected band. TYPE: The 5 types of EQ that can be used are: parametric (PEQ), low shelf (LOSHF), high shelf (HI-SHF), 1st degree all-pass (AP-1), and 2nd degree all pass (AP-2). FREQ: The EQ center frequency ranges from 20Hz to 30kHz in either 1Hz steps or 1/36 octave steps. The frequency steps can be selected in the system menu. BW: The EQ bandwidth ranges from 0.02 to 3.61 octaves in steps of 0.01 octave. The equivalent Q value automatically shows besides the octave value. For 1st degree all-pass (AP-1) filter, the bandwidth sets the phase shift at the centre frequency. This phase shift is gradually changed from 180degrees above the centre frequency to the specified value. LEVEL: The EQ level (or gain) ranges from -30.00dB to +15.00dB in 0.25dB steps. Input graphic equalizer GEQ#: The graphic equalizer has 31 bands of equalization from 20Hz to 20kHz. This control selects one of the 31 available bands. The frequency corresponding to each band is also shown. LEVEL: The GEQ level (or gain) ranges from -30.00dB to +15.00dB in 0.25dB steps. BYPASS: This control un-bypass (Off) or bypass (On) the entire GEQ for this channel. Input / output crossover TYPL: The 3 available filter types for the low frequency crossover point (high pass) are: Butterworth, Linkwitz Riley or Bessel. FRQL: The filter cuts-off frequency for the low frequency crossover point (high pass) ranges from 20 to 30kHz in either 1Hz steps or 1/36 octave steps. The frequency steps can be selected in the System’s Menu. SLPL: The filter slope for low frequency crossover point (high pass) ranges from 6to 48dB/octave. The available slopes are 12, 24, 36 or 48 dB/octave. TYPH: The 3 available filter types for the high frequency crossover point (low pass) are: Butterworth, Linkwitz Riley or Bessel. FRQH: The filter cut-off frequency for the high frequency crossover point (low pass) ranges from 20 to 30kHz in either 1Hz steps or 1/36 octave steps. The frequency steps can be selected in the system menu. SLPH: The filter slope for high frequency crossover point (low pass) ranges from 6 to 48dB/octave. If the selected filter type is Linkwitz Riley, the available slopes are 12, 24, 36 or 48 dB/octave. Input compressor THRESH: The compressor threshold ranges from -20 to +20dBu in 0.5dB steps. ATTACK: The compressor attack’s time ranges from 0.3 to 1ms in 0.1ms steps, then ranges from 1 to 100ms in 1ms steps. RELEASE: The compressor release’s time can be set at 2X, 4X, 8X, 16X or 32X the attack time. RATIO: The compressor ratio is the slope in which the signal is compressed. It ranges from 1:1 to 1:40. Input / output channel name NAME: A 6 characters name can be assigned to each channel. Output Limiter THRESH: The limiter threshold ranges from -20 to +20dBu in 0.5dB steps. ATTACK: The limiter attack time ranges from 0.3 to 1ms in 0.1ms steps, then ranges from 1 to 100ms in 1ms steps. RELEASE: The limiter release time can be set at 2X, 4X, 8X, 16X or 32X the attack time. Output Source IN1 – 8: This sets the input channel source for the current output channel. It can be used to mix the input source (in dB) or disable it (Off). If more than one input sources are enabled, they are added together as the source for the current output channel. Operating the system menus The system menus allow the user to control and change parameters that are related to the system behavior and general operation. It can be accessed by pressing the Sys key in the main menu (when no input / output or system menu is activated). All system menus require pressing the enter key to confirm and save the settings. Preset recall P1: The DSP 88 has a built in non-volatile memory that can store up to 30 different preset setups. This control selects which program to recall from the non-volatile memory. The program name is displayed to the right of the program no. Preset store P:1 The DSP 88 has a built in non-volatile memory that can store up to 30 different preset setups. A program can be stored using this menu. The old program with the same program number will be replaced. Once the program is stored in the flash memory, it can be recalled at a later time, even after power down. This control selects which preset location in the non-volatile memory to be saved. NAM: A descriptive name of up to 12 characters can be assigned to each program. MIC settings IN1: The user can choose between Line input or MIC input. For MIC input, the input will receive a 30dB gain. Each input channel can be selected individually. Phantom power The optional microphone preamp also comes with 48 V phantom power, which can also be enabled or disabled per channel in this menu. Copy channels Copy channels from the source to the target. When the source and targets are both Inputs and outputs, all audio parameters will be copied. When one of the source or the target is an input while the other is an output, only the level, polarity, delay, EQ, crossover, and channel name are copied. SOURCE: This is the channel to be copied from. TARGET: This is the channel to be copied to. General Settings FREQ MODE: This changes the frequency control mode for EQ and crossover filters. It can be 36 steps/octave or All Frequencies (1 Hz resolution). DELAY UNIT: This sets the time unit for input and output delay to ms, ft, or m. Ethernet settings The network settings are separated into 3 menus. Eth-IP An unique IP address should be assigned to each unit in the network. Eth-GW The gateway address of the network. Usually, this should be the IP address of your router/switch/hub address. Eth-SM The set of the subnet mask used by your network. Communication settings Please note: User must power cycle (reset) the unit for this settings to take effect. DEVICE ID: This control assigns a device ID from 1 to 16 to the unit. This ID is only useful when a network of more than 1 unit is used in conjunction with 1 or more DSP 88. BAUD RATE: It sets the baud rate of the serial communication. AMC DSP Software Control uses a baud rate of 115200, it should be left unchanged for most users. NETWORK ID: This control assigns a network ID from 0 to 60000 to the unit. This ID is used for future network expansion only, please leave it at 0. Security lock and unlock The password is 4 characters in length. The factory default of a new unit does not require a password. The device can be protected for unauthorized parameter and /or system abuse. The security settings can be controlled and stored in the device with the AMC DSP Software Control only. When the correct password is entered in the device all the locks are disabled. After reentering the password or power cycling the device, the locks are automatically enabled again. Factory settings CURRENT: This resets all the current parameters back to factory default settings only, while stored presets and system settings stay untouched. ISO settings (noise gate) This internal system optimizer (gate) reduces ground floor noise if no signal is present. If unwanted noise gate effects are audible on low sound levels it can be switched to bypass mode. INFO This menu contains 3 info screens: The first screen displays the device’s name. The second screen displays the Firmware version. The third and last screen display the security code. When no password is set the factory default code is 11110000. When another combination of characters is displayed a password is set in the device and certain functions are disabled for the user to modify. Quick reference PC control software The DSP 88 is shipped with a special PC Graphic User Interface (GUI) application - AMC DSP Software Control. AMC DSP Software Control gives the user an option to control the unit from a remote PC. The GUI application makes it much easier to control and monitor the device, allowing the user to get the whole picture on one screen. Programs can be stored to PC’s hard drive, thus expanding the storage to become virtually limitless. AMC DSP Software Control can be connected to the DSP 88 via RS232, USB or Ethernet. USB requires the installation of additional driver. The user is given an option to install it during the installation of AMC DSP Software Control, and if the user did not install it at that time, they may choose to do so by running the USB driver installer from the provided software. AMC DSP Software Control is compatible with Microsoft XP, Vista and Microsoft Windows 7. The software will also work if using Boot camp on a Mac. Please note: Do not connect your DSP 88 processor with the computer before installing the software. Ethernet configuration Three of the PC’s parameters need to be determined to connect successfully to the unit: • IP address • Gateway • Subnet mask Determine these parameters by selecting “Start” and then “AMC DSP Software Control” from the main menu. In AMC DSP Software Control window goes to “Setup” then “Port Connection”. And click on “Command Prompt” in window below. A DOS prompt window will appear. Type “ipconfig” when ready and press enter. This brings up all the information required to setup the Ethernet connection. Return to the main page of the AMC DSP Software Control and click “Device 1 (online)”. The main window for that specific device appears. In the top left corner of this window, click on the “Device” button that is founded next to “Presets”. This initializes the configuration menu of the network card found in the rear of the DSP 88 unit. Within this dialogue menu, enter the information received from the previous DOS prompt instruction into the respective boxes. • IP address • Gateway • Subnet mask Please ensure that you enter the information in to the fields correctly and in the right order. Please note : To avoid IP conflicts between PC and device, the last field of the “Device Address” must be an unique number between the 1 and 254. Every computer, DSP 88 device and all other network devices should have their own number with no duplication of addresses anywhere on the network. Please make note of the unit’s unique IP address that has been allocated to the DSP 88, as it is needed for further configuration within AMC DSP Software Control. Save the setting by clicking “OK”. Return to AMC DSP Software Control, click “Setup” and then click on “Port Connection”. The window “Connection Setup” will appear. This is the same window used to configure the USB connection earlier in the set up procedure. In the drop down box next to “Type”, select “CAT-5 Ethernet” from the available options. You should notice that now it becomes impossible to change the “COM Port” selection. Instead, the option to fill in the IP address configured in the prior setup previously becomes available. This is necessary as previously, the configuration steps simply allocated an IP address to the device’s network card using the USB connection. After copying the IP address entered earlier in the “Device Setup” window, please confirm the changes by clicking “OK”. You now be prompted to restart AMC DSP Software Control before the changes take effect. Confirm this instruction by clicking OK, and then quit AMC DSP Software Control. Before restarting AMC DSP Software Control, please disconnect the USB cable between PC and device and connect the DSP 88 to your router with a straight CAT-5 Ethernet cable. Please restart AMC DSP Software Control and make a connection to the device over Ethernet in the same manner as connecting via USB. You should now see that “Device 1” is again online, but is communicating with the PC over a solid Ethernet connection. If you have AMC DSP Software Control installed on a notebook with WIFI capabilities, it is possible to connect the DSP 88 to a wireless router and connect without providing a hard-wired connection. Firmware upgrade Please note: It is not possible to do Firmware updates over the Ethernet connection, only via Serial Port or USB. To begin the upgrade, ensure that you are connected to the device, click “Upgrade” and then select “Firmware”. Two pop-up screens appears and they need to be confirmed by clicking “Yes”. After accepting these, you will be asked for the location of the firmware to be used in the upgrade. Browse to the location and select the required .img or image file. In the bottom right corner of the main screen a progress bar will appear. When the upload is finished, you be prompted to switch the unit OFF and then ON again. This is necessary so that the device’s EPROM can be reprogrammed with the new Firmware. Please note: Do not interrupt this process. It may cause damage to the EPROM. General specifications Inputs and outputs Input impedance: Output impedance: Maximum level: Inputs type: >10k Ohms 50 Ohms +20dBu Electronically balanced Audio performance Frequency response: Dynamic range: Crosstalk: Distortion: +/- 0.1dB (20 to 30kHz) 115dB typ (unweighted) < -100dB 0.002% (1kHz @+4dBu) Digital audio performance Processor: Sampling rate: Analog converters: Propagation delay: 40-bit 96kHz High Performance 24-bit 1.5ms Front panel controls Display: Level meters: Buttons: Dial encoder: 2 x 16 Character Backlit LCD 5 segment LED Mute/Edit Controls Menu Controls Embedded Thumb Wheel Connectors Analog inputs: Analog outputs: RS-232: USB: Power: 3-pin Female XLR7 3-pin Male XLR8 Female DB-9 Type B Standard IEC Socket General Power: Dimensions: Weight: 90-240 VAC (50-60Hz) 19”x1.75”x9” (483x44x229 mm) 10 lbs / 4.5 kg Audio control parameters Mic gain: Gain: Polarity: Delay: Equalizers Type: Gain: Bandwidth: Gain: 0to +45dB in 3dB steps -40 to +15dB in 0.25dB steps +/Up to 650ms per I/O 8 per I/O Parametric, Hi-shelf, Lo-shelf, Phase 1, Phase 2 -30 to +15dB in 0.25dB steps 0.02 to 3.61 octaves (Q=0.3 to 72) 31-Band Graphic Equalizers 1 per Input -30 to +15dB in 0.25dB steps Crossover filters Filter types: Slopes: Limiters Threshold: Attack: Release: 2 per I/O Butterworth, Bessel, Linkwitz Riley 6 to 48dB/oct 1 per Output -20 to +20dBu 0.3 to 100ms 2 to 32X the attack time System parameters No. of presets: Program names: Delay units: Frequency modes: 30 12 character length ms, ft, m 36 steps/oct, 1Hz resolution The specifications above are correct at the time of printing of this manual. For improvement purposes, all specifications for this unit, including design and appearance, are subject to change without prior notice. 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