خد الهدية دى و ما تدورش على اى دواير صدى صوت على الويب
صدى الصوت بيبقى عبارة عن :
اما اكوا او ما يسمى ديلاى او ريفرب
تخيل بقى لما يكونوا التلاتة موجودين فى دايرة واحدة مع مدخل ميكروفون و مكبر ابتدائى
و تقدر قبل ما تنفذ الدايرة تشوفها فيديو و تسمع صوتها كمان
و كمان مخطط الدايرة و البوردة جاهزة للطباعة و الدايرة مجربة و موجود الفيديو بتاعها و صور لكل مراحل تصميمها
و تقدر ايضا تنفذ الجزء بتاع صدى الصوت فقط لوحده بدون المكبر الابتدائى لو انت الدايرة فيها مكبر ابتدائى
الصور
و هذا هو الفيديو:
و هذا ملف BDF
فيه كل شئ عن الدايرة و لن تحتاج لشئ بعده حمله من هنا
http://construyasuvideorockola.com/downloads/reverb.pdf
و هذا شرح بالانجليزية
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his microphone preamp with reverb and delay, is useful for videorockolas with Karaoke, as it gives the necessary effect to the voice, and makes it more attractive. In addition we have tested with electric guitar, having very good results.
Due to the great success of the video jukeboxes, manufacturers have started enriching machines with other services such as Radio, TV and Karaoke. For the latter should read this project, which aims to give a more attractive sound to the Karaoke singer's voice. The reverb and delay are basically signal delays, added to the original sound, which give a depth to the sound.
The materials for this project are very economical with the exception of integrated ES56033E , which can be obtained on page Littlediode.com , or alibaba.com . In local stores is something lacking. Remember that in addition to printing the circuit must also print the mask components to have her guide when assembling the card.
After printing the printed circuit on bakelite, with the technique of ironing , or the art of screen printing , proceed to put all the resistors and jumpers (jumpers).
To weld correctly, you should join welding, soldering iron and the workpiece simultaneously. Remember that the quality of the welds depends the success of any electronics project to undertake.
Although not essential, is recommended to place a base for 16 pin integrated circuit. This helps in case you want to change it to malfunction or any other reason, you can do it quickly and without damaging the tracks, and to remove an integrated so many legs, is no easy task.
The use of connectors is very comfortable when making circuit maintenance, disassembly or other device to mount. We used type molex connectors are good quality and very aesthetic. If you do not want to use connectors, you can solder wires directly to the PCB holes.
Connectors that are seen in the photo are the power input and signal output. Take into account the polarity when connecting the source and the amplifier. If for some reason were to go wrong, it could be fatal for the integrated circuit.
Transistors 2N5551 (NPN) are widely used in low noise preamplifiers. Double check the position before welding, looking at the mask components.
The function of these transistors is the signal amplifier, before entering the integrated circuit and out of this, increasing the gain enough for the amplifier receives a good level.
This circuit operates on 12 volts DC, and support up to 50v ceramic capacitors, so its voltage is specified. Moreover, all the ceramic capacitors so as polyester, are above this voltage.
We can see the polyester and ceramic capacitors placed. These have no polarity. To view larger photos, click on them.
Now put the electrolytic capacitors. These have polarity. In the mask direction condenser components shown, and condenser brings a strip showing the negative pole. Also when new, bring negative leg shorter.
The zener diode C5V6 , a diode is 5.6 volts. This feeds the integrated circuit since the ES56033E only needs 5 volts to operate. The 12v are on the accompanying preamplifier integrated circuit reverb and delay.
The zener diode limiting resistor is 330 ohms. If after a while of working preamplifier note that this resistance is too hot, you can place a 1/2W or raise its value to 390 ohms. Note that to calculate the polarization resistance of a zener voltage is totally, less consumption of the zener voltage divided by 0.02.
The 4 Simple put potentiometers potentiometer 50K and 50K double in volume. Kindly replace the double potentiometer 50K 20K single one. If you wonder why we put a double 50K and not one single, it was because the value of the right potentiometer is 25K and join the legs parallel one double, is divided in half. But after doing several tests we saw a 20K potentiometer we works perfectly.
Upon completion of assembling the card, wash down the side of the tracks with thinner. This is done to avoid possible short-generated solder particles which may remain attached to the PCB. Then apply rosin dissolved in thinner, to prevent rusting tracks.
The ES56033 is an echo effect generator which includes in its interior, a VCO (voltage controlled oscillator) which can be adjusted to the desired frequency by an external resistor and capacitor. It also contains a D / A converter
(Adaptive Delta Modulation), two low pass filters and 32KB SRAM.
To feed this circuit, you must build a single source, which is in the PDF of this project, although it is preferable to the regulated supply , since the sound will be cleaner with this. The power consumption is only 300 milliamps and voltage transformer can be between 10 and 12 volts AC.
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