Block diagram Essay Example | Topics and Well Written Essays - 1000 words

Block diagram - Essay Example The block digram of the YAMAHA DM1000 shown above can be divided into functional blocks as below: 1) Analog inputs and outputs section. The input section has input conectors 1_16 through which to connect the microphone and line level sources, and 1_4 OMNI IN connectors though which line level sources are connected.SLOT(1_2) are used to offer AD/DA conversion and digital I/O interfaces.SLOT1 has 1-18 lines connected to the input patch. SLOT 2 has 1-18 also connected to the input patch( bus bar). Both slots are connected together to surround monitor. The sorround has a Pan function which places the sound image within a two-dimensional by using a multichannel playback system and so pans the image to the front, rear,left and right in relation (Collins 2011). The XLR connectors are wired in the sequence that follows:pin1 to ground,pin 2 to hot(+) and pin 3 to cold (-). Inputs 1-16 accept line-level and microphone signals in the range -60dB to +40dB. These inputs have a switchable +48V pow ering for use with condenser type microphones and the direct buses and the swiches turn the phantom power ON/OFF. The signal then passes through PAD switches which attenuate it by 20dB and through rotary gain controls used to adjust input sensitivity which range from +40dB to -40Db when PAD is on and from -16dB to -60dB when its off. The signal passes through the AD which convert the analogue signal into digital form. LED signal indicators light up when the input signal level is 20 dB below the nominal value and the PEAK indicators light up when input signal level is 3dB below clipping. The signal is then passed to the INPUT PATCH via the connectors 1-16. 2) Input chanel section This iswhere the signal level and tone inputs are adjusted and roputed to Bus 1-8,Stero Bus,SOLO Bus and Aux Busses.The signal flows as follows: The phase (Ð ¤) section switches the phase of the input signals. Signal passes on to the gate which is a dynamic processor for gating or for ducking. The signal th en pass through a metering unit. From here, its passed through a Compressor that has a dynamic processor used as a compressor,expander or limiter. It can be a pre-Equalizer, pre-fader or post fader. The signal then goes through the attenuator which attenuates or amplifies the signal to be fed to the Equalizer. The 4-band equalizer is parametric and features four band, i.e. high, high-mid, low-mid, and low and is connected to a metering unit. The signal the flows to the Input Delay that enables the signal to be delayed so as top fine tune the timing between channels or as a delay effect with feedback. The On/Off switches allows for the channel to be turned on or off (mute). The Level adjusts the input level of the Input Channel signal (Collins 2011). The INSERT is used to patch input signals to external devices through the on-board I/O connectors or I/O cards or to insert the internal effect processors. The Meter switches the metering position of the signal levels that are then displ ayed on the meter page. The PAN section adjusts the settings of the signals routed from the input channels to the Stero Bus. The AUX Send level adjusts the level of the signals routed to Auxilliary Out 1-8 either from the pre-fader or from the post-fader. These Channel parameters are stored in the channel libraries as appropriate. 3) Input patching Here the input signals presnt at the input ports 1-16, OMNI IN 1-4 and inputs to the SLOTS 1 are patched