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Prototype to Capture Sound and Audio Attributes for Voice Analytics

$100-200 USD / hour

Κλειστή
Αναρτήθηκε περίπου 6 χρόνια πριν

$100-200 USD / hour

Goal: We are a Fortune 500 company in the Healthcare sector. We want to develop software or software and a device that will capture audio and save it to a non-audio format. We want this software/device to capture data about audio that can be used for machine/deep learning projects. The need to protect patient privacy is the key driver of this project’s main requirement – save audio data to a non-audio file. Our Ideal Expert: Someone with extensive experience programming audio software and/or someone with a strong understanding of acoustics – for example, an Acoustical Engineer or someone with expertise in voice analytics. The Requirements: Our initial thought is to develop software that would run on a Raspberry Pi. This is not a hard requirement, but it would be a useful starting point for a prototype. We are open to an expert’s advice if you want to suggest off-the-shelf hardware that could be used. The software developed will capture audio using an omni directional microphone. The captured audio will not be written to hard disk in an audio file format. Instead the attributes of the audio listed below, will be written to a CSV file. Please note, the audio features listed below are only the minimum required features. We will default to the expert’s advice for additional features to capture from a voice analytics perspective. Features: - Mel Frequency cepstrum coefficients - Spectral slope - Audio spectral flatness - Audio spectral centroid - Audio spectral envelope - Any additional audio features that may help in the identification of sound The CSV file’s rows will represent time increments (e.g. one second) and should be written as a timestamp. The file’s columns will be the audio features listed above. An important requirement is that we as users of the software/device be able to adjust the increments for sound capture. We also need to be able to adjust the intervals in which the data is captured. For example, we may want to set the device to record one second of sound every two minutes. The software/device will need the ability to connect to a Wi-Fi network and transfer data collected to a destination specified by the user. The user will also need the ability to define the interval of data transfer. Finally, the data recorded by this device should never be able to be converted into sound (i.e. audio could not be determined from the data captured). At the end of the project the expert should produce full specifications for the hardware device and microphone used in development. Proposals: In your proposal please provide the following: - Your suggestions on hardware and your specific approach to this problem. - How will you ensure that the audio data is converted to delimited file and that no audio file is created in the process? - What are your proposed milestones and how many hours should be budgeted for each? - Your relevant experience with a project like this one.
Ταυτότητα εργασίας: 16576865

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8 προτάσεις
Απομακρυσμένη Εργασία
Ενεργός/ή 6 χρόνια πριν

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8 freelancers δίνουν μια μέση προσφορά $142 USD/ώρα για αυτή τη δουλειά
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Hello, We are IT-Engineers with higher educations, having more than 15 years of experience, developing sophisticated Web and Mobile solutions from scratch. During the consultation with you regarding the use-cases we will in parallel work on the Functional Description. Our task will be to research all the implementation options chosen by you for the technological implement-ability and to create the professional base for the engineering design. We will ensure the flexibility and readiness to possible requirements changes based on the market best practices and our 15 years of development experience. The answers to your questions: 1. We would suggest prototyping the initial versions of the software on the available devices, such as iPhone / iPad. 2. An audio file will anyways inevitably be created in the process of recording, then processed and the original file will be deleted if required. 3. The milestones and effort estimation can be performed only after the initial Product Design Engineering process has taken place. This is the next stage of the process. 4. We've been working with mobile / server side projects for more than 15 years. In the Audio branch we've been producing electronic music for various purposes, using sound synthesis and sound engineering / sound design technologies. Best Regards, Andrei Costenco Team Lead, Business Analyst, Senior Engineer Dev Experts Team
$100 USD σε 40 ημέρες
5,0 (6 αξιολογήσεις)
7,0
7,0
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Hi there , I am Electrical + Software engineer with 18+ years experience, I have built several audio-video chat projects since 2003, bio-medical instruments as well . Though .I rarely work here I have worked exclusively for a video chat company for 6 years . I have built the the communication system for aircraft ground station, 2 tone detection system for fire-department and both runs on raspberry pi perfectly well, Businesses can rely on my systems. I have used Digital Signal processing chip in another project and can design hardware as well based on fpga , micro-controller etc. if project demands. Please send me a message. I used raspberry pi in all recent projects.
$166 USD σε 40 ημέρες
5,0 (12 αξιολογήσεις)
6,6
6,6
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Hello sir As a data analytic expert, I'm glad to see your project. In fact, i think your project is long term project. So i need to discuss in detail with you. I will wait for you
$166 USD σε 40 ημέρες
4,7 (64 αξιολογήσεις)
6,1
6,1
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A proposal has not yet been provided
$170 USD σε 15 ημέρες
5,0 (11 αξιολογήσεις)
5,1
5,1
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I have over 30 years of embedded system experience and extensive experience with audio. Currently, my day-job is with Amazon in the Alexa group. Prior to that, I was CTO at THX where I designed state of the art 3D audio systems and other technologies that represent the best in audio.
$166 USD σε 40 ημέρες
0,0 (0 αξιολογήσεις)
0,0
0,0

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Σημαία της UNITED STATES
Waltham, United States
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Μέλος από Μαρ 27, 2018

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