Sound generator

Hi thierrydollar, I believe I may be able to help you with your project What I propose is a simple oscillator to provide the beep sound with an adjustable frequency control. This would be output for about 0.5 seconds, although this time would also be adjustable. This would be either battery powered or from an external 5V brick Power supply. There would a simple switch for on/off The beep would be activated by an external digital trigger. As for the amplifier and speaker I would just provide suggestions of kit already available. Therefore the deliverables would be as follows:- 1. Circuit diagram of beep circuit as a pdf 2. Items list fully costed using distributors part numbers as an excel spread sheet. 3. Suggested off the shelf amplifier 4. Suggested loudspeaker, water proof if possible. Best Regards Dave Lelievre

hi, i am an electrical engineer. i have expertise in embedded system design.i can help you with this project. i will also provide you with one prototype for testing. regards

Professional electrons and automation domain experienced engineer can take care...........................................................................

Dear Hiring Manager, I am already working on a similar project for generating sounds for the clocks. I just need to add some additional components to make it louder and feasible for your use. I am also working on another project which is in fact a game and needs to generate three different sounds. Now, let me introduce myself. I am a professional electrical engineer and have built several projects for the students and local and international companies. I provide extraordinary services to my clients to make them permanent for all of their future projects to me. I provide the following services to my clients: 1. Complete software simulation 2. Coding of the microcontroller 3. Bill of Materials 4. Hardware (if required) 5. Free 15 days support after the completion of the project Please tell me what you need from me? Software only, hardware only or software + hardware ? The bid will be modified accordingly. Only software : $200 Only Hardware: $200 (cost of the materials are not included) Software + Hardware : $300 ($100 concession) NOTE: These prices don't include site's fees. One thing I guarantee is you will be 110% satisfied with the work and we will have strong relationships in the future for I want to make sure you become my permanent client. If you have any questions, please feel free ask so that there will be no confusion about anything related to the project. This way, we can finish the project in a great way. Regards, Faraz Ahmad

Hi. I can help you. i can make different tone generator circuits you can get melody tones, beeps, sirens etc. i can offer my services for PCB manufacturing as well. you can remotely turned on and off the sound generating circuit. it can also be made to produce sounds and shutdown automatically. Looking forward for the response. Regards, Shahbaz.

Greetings I will use beep generator for this purpose which takes just power input, trigger and GND, so it will be interfaced to controller using some driving circuitry(Main Design using Power MOSFETs or Power BJTs)... You can contact me for reliable and in time work... Have a look @ my intro below: Electrical Engineer (Gold-Medalist) from the oldest and the most reputable engineering institute of Pakistan (UET, Lahore). Done my internship @ US based R&D embedded company “Mentor Graphics” and currently working as Professional “Embedded Design Engineer” @ Asia’s #1 ranked R&D company “MicroTech Industries”… Other Distinguishing Characteristics: 1. Perfect Academic Record in Electronics+Circuit Design+DSP(A+ in all these subjects) during my BS Electrical Engineering 2. Done immense # of projects in Electronics/Telecomm including: • Automated Room Temperature control by implementing Closed loop Feedback Controller • RFID Controlled using Smart Phone • DC-DC Flyback converter • Direct AC-AC Converter • Cellular CDMA receiver Design • Score Keeping board with the time left indication (servo motor enabled) 3. Founding director of “AK Electronics Lab” in which I have personally purchased all required testing, debugging and small scale PCB manufacturing facilities including • Digital Storage Oscilloscope • SMD Soldering rework station • Universal Programmer

Hi, I'm a electrical engineers student at a final year of master's degree. I have experience in digital, analog electronics, embedded system and PCB design. I can provide you with complete solution. I would suggest using buzzer with high enough Sound Level to meet your constraints. Then you could use low end microcontroller to generate PWM signal which would be filtered (so it produce nicer beep) then amplified and feed to the buzzer. There shouldn't be any problem to make system capable to play more then just one type of a beep. Also we can try to experiment with real sound, record something like horn in .wav file, then store it in microcontroller's ROM so it can be played afterwards. As for the price. 10 USD for buzzer should be enough, and for electronic components and PCB I would expect it should be somewhere between 5 and 10 USD. Regards, Vladimir.

ready to do this beep generator .......................................................................

This is just a piece of cake. 'The beep is trigger by a digital signal'. Please let me know what do you mean by a digital signal? (A switch press, Touch or wireless...etc)

Hi I can search the required parts and make the system. Please specify your requirements in a bit more detail. Any specific restriction on the hardware ?

Dear,sir I have read your project carefully. I am a new freelancer. I am a expert of electronics and have 5+year experience, power device in particular. I am sure,my result will makes you to satisfy. but i can provide the circuit only for you. i will do best including quality and effective price. I hope your reply. kind regards.

Hi I am interested to this project. This rate is for schematic and PCB layout. Thanks..........................

I'm an electronics/embedded systems engineer with over 9 years of experience. I have hands-on experience with developing audio applications.

Hello there, I can do this for you. Are there any restrictions on the size of this gadget? We can discuss the details on skype. I can do this very quickly. Please consider my bid. Regards.