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Fixed Price: About $20   |  Posted: Apr 21, 2014  |  Ends: 12d, 2h  |   7 Proposals
I recently interviewed a colleague over skype but the sound quality is not great and is echoey. It basically reverberate and I will not be able to publish the podcast without filtering. I basically need all the background crap like echo, noise, reverberation removed so that the audio is clear enough for someone to listen to it on their headphones without feeling bleeding their ears from the bad quality. Even the pitch and tempo can be slightly adjusted if necessary to improve clarity. I'm looking for best effort within reason since it won't be possible to completely transform a frog into a princess :) The interview is 45min long and 30MB but I have attached a small low quality MP3 sample since the whole audio suffers from the same problem. I will provide the full audio copy to the winner.   [obscured]  /file/d/0B1hEy7X5PT-VX19FMlh2allPT28/edit?usp=sharing
Category: Other - Multimedia...       

H****ion
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| H****ion
|    United Kingdom
Fixed Price: Less than $500   |  Posted: Apr 19, 2014  |  Ends: 1d, 14h  |   14 Proposals
We are looking to create an audio processing app to help hearing impaired people. It captures sound from a headset microphone and plays it back in the earbuds of the same device. The app needs to have the following functions: 1. Detect when an external headset is plugged in and switch the main audio input to the headset's microphone and the main audio output to the headset's earphones. 2. If a headset is not plugged in, provide an error message: "Please plug in your headset." Have the error message disappear as soon as headset is plugged in. 3. Provide an input level control with a limited range. +6 dB to -18 dB. 4. Provide an indication of the input level with a bar of colored dots (green, orange, red). 5. Provide an output level control. (Regular volume control of headphone jack.) 6. Provide a balance control. (Slider from left to right ear.) 7. Provide a mute button. 8. Pass the amplified microphone signal to the headphone output on the accessory jack. It is critical that...
Category: Mobile Applications       
Skills: iPhone, iOS, Audio Engineering       

o****joy
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| o****joy
|    United States
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Apr 18, 2014  |  Ends: 8d, 16h  |   26 Proposals
I have a PCB design using bluetooth created in Altium. I would like a second set of eyes to look over the design and make changes to improve it. NDA is needed.
Category: Electrical       

r****jam
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| r****jam
|    United States
Fixed Price: Not Sure   |  Posted: Apr 15, 2014  |  Ends: 6d, 9h  |   12 Proposals
I need a breadboard circuit with the final schematic and the right values and BOM. We need an AM detector which has 120kHz at 2Vpp and is modulated with 32kHz, 10mV. The demodulation sub-circuit has a diode and an RC which has to match. Due to small Signal to Carrier ratio, we will get a huge ripple which needs to be filtered out. The 32kHz comes with 8 periods per bit and has to create an output level of 100mV.
Category: Electrical       

l****deh
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| l****deh
|    United States
Fixed Price: Not Sure   |  Posted: Apr 15, 2014  |  Ends: 6d, 4h  |   18 Proposals
We have a recorded song, and we absolutely love the chorus but the rapping sucks and is out of tune! What we want is for someone to work some magic on the rap vocals so that it will sound bearable at the very least and amazing at the best. (The song is attached so you can hear the full thing and know what can be done to achieve our aim).
Category: Other - Multimedia...       

u****olf
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| u****olf
Fixed Price: Less than $500   |  Posted: Apr 02, 2014  |  Ends: 67d, 16h  |   5 Proposals
We look for design dimension and simulation of 3D Antenna integrate in can case. The Antenna design has to be 50 ohm with small-sized and high-gained, see photo. The design has to maximizing the antenna power radiation for 2.4 Ghz to 2.5 Ghz range. The PCB is FR4 is: 1mm, dialectic is 4.4 and has GND layer. Since we design many sizes RF PCB for Bluetooth Low energy, will be following works base on this design, when the changing factor will be the PCB size. The height and the insertion point will be the same in most cases. we need to see a a preview demo work before grant the the project.
Category: Electrical       

b****ert
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| b****ert
|    Israel
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