Delay Audio Software' title='Delay Audio Software' />Audio Delay Module 1. Steps with PicturesThe microprocessor U1 used here is a Microchip 1. F8. 8, and it serves as the heart of the system. During the main program loop, the micro reads the input audio, converts it to a digital value, and stores it to the RAM chips. It then reads a sample to output back from the RAM chips, and outputs it to the DAC. The micro performs these functions, and also manages the addressing for the RAM buffer and calculates the address of the delayed sample to retrieve. There are also many configuration and housekeeping functions performed by the microprocessor. The general functions performed by the microprocessor as described below. Analog to Digital Conversion. The microprocessor contains an internal ADC which has a resolution of 1. The two least significant bits of the value are discarded. There are two analog inputs read by the microprocessor during the main program loop. One is the audio input, and the second is the delay setting. The delay input is an analog input that determines how much delay there is between the input and output signals. VDD corresponds to 1. LEPCMNATIVEEFFECTS-1f.jpg' alt='Delay Audio Software' title='Delay Audio Software' />Info TuN DSP SoftwareFind the new TN System Tuning Software and other car audio tuning software for JL Audio processors at the official site. Delay Audio Software' title='Delay Audio Software' />The value that is read is used to calculate the RAM address of the delayed sample that will be played back. Op amp U6 C is used to buffer the delay input voltage to the microprocessor AD pin. The analog value for the delay input can be generated by a potentiometer which is used to set the voltage at this pin, providing a delay from 0 seconds to full scale. This allows a fixed delay amount to be set easily. It can also be useful to use an external signal to control the delay. Professional Shoe Fitting Manual. The va256xl is a high performance audio delay for balanced stereo audio signals. Magic Music Editor record and edit audio files visually using cut, copy, paste and apply more than 20 effects and filters. Sigmund-delay-1024x651.jpg' alt='Delay Audio Software' title='Delay Audio Software' />All kinds of strange sound effects can be produced by driving the delay setting input with different waveforms. For that reason, my design also includes a connector to allow an external source to be used to drive the delay setting input. The schematic shows the delay setting potentiometer R2. U6 C via a 1. 0k resistor, R3. With the R3 in place, the external signal which is input via the connector can still drive the op amp input, even with the potentiometer connected. C2. 4 helps to low pass filter the delay input signal. SPI Bus Master. The micro communicates with the RAM and DAC chips using the SPI communications interface. The micro is configured as the master, and the RAM and DAC chips are slave devices. All the SPI communications are therefore initiated and controlled by the microprocessor. Determine Full Scale Delay Setting. The full scale delay range is configurable by setting the 3 digital inputs either high or low. This allows the user to select a full scale range that is smaller than the total RAM buffer size. R1. 0, R1. 1, and R1. Switches S1 A, S1 B, and S1 C are a quad DIP switch. When any of the switches are closed, the corresponding digital input is pulled low. The table included here shows the different full scale delay values possible based on the switch setting, sample rate,and RAM capacity,Determine RAM Configuration. The microprocessor also determines whether the system is configured for one or two RAM chips. Resistor R1. 3 needs to be used if two chips are to be used. When the circuit is first powered up, the microprocessor reads the line as an input. If the line is high, the software is configured for two RAM chips, and the addressing used internally is set up for that. The line will be used for the chip select signal for the second RAM chip in that configuration. If only one chip is to be used, pull the line low using R1. Only one of these resistors either R1. R1. 4 should be populated at one time, depending on how many RAM chips are used. These lines need to be configured by tying them high or low via a large value resistor 1. Oscillator. The micro can operate with a maximum of 2. MHz for the clock frequency. An external 2. 0MHz oscillator X1 is used here. All the circuitry here is run from 3. V, but the oscillator is a 5 Volt part. Resistor R1. 6 is put in series between the oscillator output and the microprocessor clock input, to limit current so that it can drive the 3. V powered microprocessor without issue. Inside the microprocessor, the voltage of the clock pulses is clamped to 3. V, and so the microprocessor input is not damaged. Capacitor C6 is a bypass capacitor for the oscillator. LED Indicator. LED1 is used to blink status or error codes to the user. R1. 5 is used to limit the current through the LED. Capacitor C5 is a bypass capacitor for the microprocessor. Microprocessor Pin Functions. This is a concise list of the function performed by each pin of the microprocessor. Pin 1. Audio Input. This is an analog input of the microprocessor which samples the input audio. Pin 2. RAM configuration Input, also RAM2 Chip Select. At power up this line is an input, used to  indicate the RAM configuration. High2 RAM chips, Low1 RAM chip. If two chips are used, this line is then switched to an output which used as the chip select line by the microprocessor to initiate SPI communication with the second RAMPin 3. Mode Setting. This is a digital input used to determine if the program will enter normal mode or the test mode. The line is read after power up, and the code runs the mode that is selected. Highnormal mode, Lowtest mode. Pin 4. Sample Rate Selection. This is a digital input used to determine whether the sample rate should be 1. Hz or 8. 00. 0 Hz. High, Low. This setting only has an effect during normal operating mode, and it can be changed at any time during operation. Microsoft Dot Net Framework 4 Full For Windows 7 32Bit. Pin 5. GND VSSPin 6. Chip select for DAC. This line is an output which is brought low by the microprocessor to initiate SPI communication with the DAC. Pin 7. Serial Data Input. Data input to microprocessor. This line is the data input from the other SPI devices to the microprocessor. Pin 8. Serial Data Out. Data output from microprocessor. This line is the data output from themicroprocessor to the other devices on the SPI bus. Pin 9. Chip select for RAM1. This line is an output which is brought low by the microprocessor to initiate SPI communication with the first RAMPin 1. SCLK. Clock for SPI communications. Media Receiver 500 Sat Hack here. This line is the clock used by the SPI devices. It is generated by the microprocessor and controls the clocking of data into and out of devices on the SPI bus. Pin 1. 1Delay Range Select Input A least significant bitPin 1. Delay Range Select Input BPin 1. Delay Range Select Input C most significant bitPin 1. VCC 3. 3. V power for microprocessorPin 1. LED indicator output. The LED is used as an indicator during test mode. Pin 1. 6Oscillator Input. An external 2. 0MHz oscillator is used to drive this pin. Pin 1. 7Unused. Pin 1. Delay setting Input. This is an analog input of the microprocessor which reads the delay settinginput. Karma. FX Audio Music Software. Karma. FXPlugin Pack is a collection of quality effect plugins that are small, simple and easy to use. Pluginsthat simply getthe jobdone without too much knob tweaking. The pack includes a simple filter plugin, a tempo controlled delay, a 3. Users manual. It is only available for PCWindows in 3. Download and view the full specifications below. Karma. FX Filter A simple stereo filter plugin. One TwoPole Multimode Filter 1. Boct. Adjustablefrequency, resonance Q and saturationdrive. Selection of Lowpass, Highpass, Bandpass or Bandstop output. Two OnePole filters LP, HP, 6d. Boct with adjustable frequency. Filter series In Two pole One pole One pole Out. Filters can be turned on or off bypassed. Karma. FX Deelay A tempo controlled stereo delay. Two independent delay lines. Coarse delay 0 1. Upto 4 second delay time per channel at9. Hz 8s at 4. 8k. Hz. Dry out, wet out, tempo sync control autoor 6. BPM. Adjustablecross delay feedback mixer pingpong. Feedback gain and tap level adjustment. Lowpass and Highpass filter with adjustable frequency 6d. Boct. Resonance with adjustable freq andQ. DCblock in feedback 3d. Bat 3. 0Hz. 5 ready made presets. Karma. FX Equalizer A 3. Fixed center frequencies ranging from 2. Hzto 2. 0k. Hz. Accurate analog simulationof Boost and Cut EQ filters. Fully symmetrical reciprocal filter response. B boostcut for gentle, medium and harsh equalization. Boost option for extreme 3. B equalization. Low 2. Hz 1k. Hz, Mid 1 5k. Hz, High 5 2. 0k. Hz or Full equalization. Optional low and high shelving. Adjustableoverallmix andgain control. Reset button and keyboard shortcuts for easy editing. Karma. FX Reverb A stereo reverb. Upto 1. 0 seconds of reverberation time decay time. Dry out, wet out, pan and signal mixer. Full 4 channel stereo mix. Mono, Stereo or Dual cascade mode. Upto 5. 00 ms Predelay withadjustable synced feedback. Lowpass and Highpass filter with adjustable frequency 1. Boct. Damping adjustmentcontrols internal comb filtering. Diffusion adjustment for increasingdecreasing spaceiousness. Early reflections adjustment modeled fromreal impulse responses. More than 4. 0 readymade presets.