Audio Processing is a field at the intersection of mathematics and engineering that focuses on the capture, synthesis, analysis, and manipulation of audio signals. An Audio Signal Processing Expert is a person well-versed in the field and has the ability to create solutions that can shape, record, alter and delete sounds for almost any application. This expert can analyze and record music, speech and other environmental sounds, as well as design virtual sound environments through speakers or headphones.

Audio Processing requires sophisticated algorithms and calculations used to process audio signals in real time or in post production. It is used in a wide range of applications such as improving user experiences on social networks and streaming websites, creating complex virtual worlds used to train AI models, developing interactive music systems or sound synthesisers that mimic musical instruments or even developing music remixes from existing recordings.

Here's some projects that our Audio Signal Processing Experts made real:

  • Developing voice-over videos for promotional purposes in various languages;
  • Creating interactive virtual sound environments;
  • Tuning audio signals to aesthetically improve user experience;
  • Developing speech recognition systems to replace human labor;
  • Designing specialized sound synthesisers;
  • Developing a platform that combines conversation tracking with sound editing capabilities;
  • Curating speech recordings to create archives with particular themes.

At Freelancer.com, our Audio Signal Processing Expert specialize in transforming raw audio data into uniquely realized technological experiences while creating meaningful insights from music and speech data at scale. If you are looking to create your project that requires the skills of an experienced Audio Signal Processing Expert then why not post it up on Freelancer.com? Our expert professionals are always ready to turn your ideas into reality! Get started now by posting your project today!

From 19,284 reviews, clients rate our Audio Signal Processing Experts 4.9 out of 5 stars.
Hire Audio Signal Processing Experts

Audio Processing is a field at the intersection of mathematics and engineering that focuses on the capture, synthesis, analysis, and manipulation of audio signals. An Audio Signal Processing Expert is a person well-versed in the field and has the ability to create solutions that can shape, record, alter and delete sounds for almost any application. This expert can analyze and record music, speech and other environmental sounds, as well as design virtual sound environments through speakers or headphones.

Audio Processing requires sophisticated algorithms and calculations used to process audio signals in real time or in post production. It is used in a wide range of applications such as improving user experiences on social networks and streaming websites, creating complex virtual worlds used to train AI models, developing interactive music systems or sound synthesisers that mimic musical instruments or even developing music remixes from existing recordings.

Here's some projects that our Audio Signal Processing Experts made real:

  • Developing voice-over videos for promotional purposes in various languages;
  • Creating interactive virtual sound environments;
  • Tuning audio signals to aesthetically improve user experience;
  • Developing speech recognition systems to replace human labor;
  • Designing specialized sound synthesisers;
  • Developing a platform that combines conversation tracking with sound editing capabilities;
  • Curating speech recordings to create archives with particular themes.

At Freelancer.com, our Audio Signal Processing Expert specialize in transforming raw audio data into uniquely realized technological experiences while creating meaningful insights from music and speech data at scale. If you are looking to create your project that requires the skills of an experienced Audio Signal Processing Expert then why not post it up on Freelancer.com? Our expert professionals are always ready to turn your ideas into reality! Get started now by posting your project today!

From 19,284 reviews, clients rate our Audio Signal Processing Experts 4.9 out of 5 stars.
Hire Audio Signal Processing Experts

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    19 jobs found

    I need a command-line application that runs on a Raspberry Pi Zero 2 W and records audio when triggered by environmental sound. The tool needs to listen continuously and trigger a recording when it detects sound over a pre-specified frequency and amplitude. Recordings also need to include a buffer *before* the trigger event. So point by point, the tool needs to: – sample continuously while consuming minimal power, using 384 kHz as the default sampling rate – watch incoming samples in real time, trigger when both a user-defined frequency band and amplitude threshold are exceeded, including a pre-event buffer so the beginning of the sound is not lost – continue recording for a configurable post-trigger period, or until a maximum file length is reached – save...

    £90 Average bid
    £90 Avg Bid
    24 bids
    Fix Rust TETRA Decoder
    6 days left
    Verified

    I have a Rust utility that reads IQ recordings from an RTL-SDR and decodes TETRA traffic. Voice and most control bursts appear as expected, yet some SDS text messages never surface—no reported CRC errors, they’re just absent. ONLY WHEN YOU HAVE EXPERIENCE WITH SDR Your task is to trace and correct whatever in the demod/decoder chain is silently dropping those text packets. The project is self-contained: Rust 1.73, Cargo build, and an IQ sample file (1 MS/s) ready for you to download. You can work entirely from the recording; no extra hardware is required. Deliverables • Patch or pull-request that restores the missing SDS text message output • Brief write-up summarising the root cause and the fix I’ll run quick turn-around tests on new builds and su...

    £22 Average bid
    £22 Avg Bid
    5 bids

    Experienced Broadcast Engineer Required – Multi-Deck Routing & Mixer Integration with Tascam US-16x08 + Pioneer DJM-750MK2 (Eastbourne, East Sussex - Studio – In-Person Preferred)

    £20 - £250
    Featured Sealed
    £20 - £250
    2 bids

    I need help cleaning distorted, muffled audio from an Android messaging app voice message. The goal is to understand the conversation clearly. Requirements: - Clean 3-minute audio - Deliver in AMR, MP3, or WAV Ideal Skills: - Audio editing expertise - Experience with noise reduction and clarity enhancement Please provide samples of similar work done.

    £77 Average bid
    £77 Avg Bid
    43 bids

    I need someone to enhance a conversation audio recording with high background noise. The recording is under 30 minutes. Key requirements: - Reduce background noise - Enhance clarity of voices Experience with audio editing software is ideal.

    £32 Average bid
    £32 Avg Bid
    31 bids

    Goal: Create a FULLY AUTOMATED process that takes a male audio file and converts it into a female voice. What you must do: 1) Take the male audio I provide 2) Convert it into a female voice 3) Upload the final audio into a Google Drive folder 4) Add the Google Drive link in your competition entry 5) Explain clearly what software/tools you will use 6) Explain clearly how you will automate the FULL process from start to finish Important: - The automation must run locally - The final voice must sound perfectly natural and human - The female voice must correctly reproduce the multiple emotions, tone and intonations from the original audio - The result must NOT sound robotic or AI-generated - The automation must be able to process multiple audio files - Do NOT clean the original audio more...

    £335 Average bid
    £335 Avg Bid
    44 bids

    Goal: Create a FULLY AUTOMATED process that takes a male audio file and converts it into a female voice. What you must do: 1) Take the male audio I provide 2) Convert it into a female voice 3) Upload the final audio into a Google Drive folder 4) Add the Google Drive link in your competition entry 5) Explain clearly what software/tools you will use 6) Explain clearly how you will automate the FULL process from start to finish Important: - The automation must run locally - The final voice must sound perfectly natural and human - The female voice must correctly reproduce the multiple emotions, tone and intonations from the original audio - The result must NOT sound robotic or AI-generated - The automation must be able to process multiple audio files - Do NOT clean the original audio more...

    £74 Average bid
    Guaranteed
    £74
    39 entries

    Build Full HTML5 Radio DJ Studio + 24/7 AutoDJ System with System/Desktop Audio Capture for Wowza (MSSQL + Multi-Station) We have a Wowza Streaming Engine running on Windows Server 2022 Datacenter that has been serving multiple radio stations perfectly since 2010. Currently we ingest an old Adobe/RTMP source and push out HLS/DASH streams for web browsers. We are now moving to a modern, 100% Adobe-free system using only Wowza for everything.

    £2239 Average bid
    £2239 Avg Bid
    80 bids

    Python Developer – Smart Home Security & Alarm Logic (FastAPI / asyncio) We are building CalmOS, a premium local-first smart home system running on FastAPI (Python). We need a developer to implement the full security and alarm logic. All processing is on-device — no images or audio leave the system. Testable locally with a webcam, no on-site hardware required. --- ALARM TYPES (5): - Intrusion: camera + microphone detection, different behavior when resident is home vs. away - Fire/Smoke: shut down AC + KWL immediately (no oxygen feed), activate escape route lighting - CO (Carbon Monoxide): separate from COâ‚‚ — ventilation to maximum - Medical Emergency: person down → voice check → contact person called → auto ambulance ALARM LEVELS (3): ...

    £16 / hr Average bid
    £16 / hr Avg Bid
    143 bids

    I need an expert to enhance an audio recording of a conversation I had. The primary challenge is reducing static background noise. It is one hour long. Ideal skills and experience: - Proficiency in audio editing software (e.g., Audacity, Adobe Audition) - Experience in noise reduction techniques - Ability to improve clarity of speech without distorting the original audio - Prior work in professional audio enhancement is a plus Please include relevant experience in your application.

    £77 Average bid
    £77 Avg Bid
    13 bids

    I have a short, fifteen-second WAV clip of my voice that I need treated with a true NYC drill vocal chain. The goal is to keep my natural character yet push it firmly into that Sugarhill Ddot lane—darker formants, heavier low-mid presence, extra bite on the transients, and spotless clarity so every word cuts through an 808-heavy mix. Right now I sound a bit young (17) and high-pitched; I want that fixed without making me unrecognizable. For this first step I’m only asking for the processed sample and the exact chain or preset you used (plugin list with settings or a session file). If the treatment nails the deeper tone, added aggression, and cleaner articulation I’m after, I’ll immediately commission you to handle the full song as a paid job. Read carefully because...

    £280 Average bid
    £280 Avg Bid
    12 bids
    Pop Track Mixing & Mastering
    3 days left
    Verified

    I have a finished Pop song tracked in Logic Pro that now needs a professional mix and master. The priority is bringing the lead vocal forward without sacrificing the track’s energy, then delivering a vinyl-ready master that will translate cleanly to lacquer. Because the song is already registered with ASCAP you will need to sign a standard Non-Disclosure Agreement before I release the multitracks. You are free to use your preferred chain—analog or in-the-box—so long as the work stays inside Logic Pro for full session recall. Please document any outboard settings you print. Deliverables • Mixed Logic Pro session with all processing active or frozen • 24-bit/96 kHz stereo master WAV tailored for vinyl (-6 dBTP, correct side length) • 16-bit/44.1 kHz r...

    £59 Average bid
    £59 Avg Bid
    16 bids

    I need help isolating voice in pre-recorded audio. The main challenge is reducing the volume of the TV in the background. Ideal skills and experience: - Expertise in audio processing - Experience with noise reduction techniques - Familiarity with audio editing software Please provide samples of previous work.

    £90 Average bid
    £90 Avg Bid
    33 bids
    Package Anaconda AI App EXE
    2 days left
    Verified

    Go to and download final evolution ai. (It's free ignore the thankyou for purchasing things). This way you can see what we are dealing with here. I need this annoying 2 hour long installation video gone, I need a packaged .exe so users can simply click and run the program. obviously all folders and files will be alongside the .exe contained in root folder. however there is also visual studio msvc and ffmpeg dependancies amongst others.... I can not sell this software unless it is in an .exe, exe does not need to be digitally signed, i can make a video teaching them how to "more info>run anyway", test out the software it needs to have everything working. the professional webmaster toolkit within the software is already in .exe format, I did that myself. Do not attempt t...

    £78 Average bid
    £78 Avg Bid
    82 bids

    I have a 10–15 minute MP3 of a two-person conversation that was captured on an outdoor patio. Wind, background chatter, and general patio noise are masking the voices from start to finish, so following the discussion is almost impossible. Your task is to pull those voices forward, strip away as much unwanted sound as practical, and hand back a single, clearly intelligible track. Feel free to reach for Adobe Audition, Audacity, iZotope RX, or any other toolset you rely on—what matters is the result, not the method. What you will hand over • A fully restored, easy-to-understand audio file in the same MP3 format (a high-quality WAV version as well would be appreciated). Acceptance is simple: the dialogue must be comfortably audible from the very first second through ...

    £56 Average bid
    £56 Avg Bid
    36 bids

    I need a skilled digital forensics expert to help determine if my partner is being unfaithful. Your main task will be to extract voices from videos, and if possible, provide subtitles. The extracted audio will be used to analyze conversations to see if they are talking to someone else. Ideal Skills and Experience: - Proficiency in digital forensics - Experience with audio and video extraction - Discretion and confidentiality are paramount Please provide samples of previous work and ensure you can handle sensitive situations professionally.

    £54 Average bid
    £54 Avg Bid
    3 bids

    I need assistance to set up a system to digitize my vinyl records. Here's what I have: -Technics 1210 Turntable Fosi X5 preamp Focusrite Scarlett 4th Gen interface - iMac Computer I prefer using Audacity for this task, and I want the digitized files to be in MP3 format. Ideal Skills and Experience: - Familiarity with Audacity - Experience with vinyl digitization - Knowledge of audio input setup on computers - Ability to provide guidance or documentation for future use

    £12 / hr Average bid
    £12 / hr Avg Bid
    4 bids

    PROJECT OVERVIEW We are recruiting bilingual speakers to participate in a contact-center style audio recording project. The work involves recording natural, realistic agent–customer telephone conversations in pairs, with each speaker assigned a dedicated language role: Agent — speaks the secondary language only (typically English) Customer — speaks the primary language only (their native language) The output is a single dual-channel WAV file per conversation, with the agent and customer captured on separate audio channels. The recordings are used to train and evaluate Automatic Speech Recognition (ASR) systems for multilingual contact centers. This is a fixed-price, milestone-based engagement. Quality, naturalness, and authenticity are the primary success cr...

    £148 Average bid
    Featured Guaranteed
    £148
    53 entries

    Multilingual Voice Recording Project – Code-Switching Conversations Project Name: BV Project Type: Remote | Ongoing (Limited Slots per Locale) Project Overview Project BV is a multilingual speech data collection initiative designed to enhance Automatic Speech Recognition (ASR) systems for high-value multilingual call center scenarios, including financial services, healthcare, and telecommunications. The project focuses on collecting natural code-switching conversational audio, where speakers alternate between two languages within a single conversational turn. Scripts will be provided; however, natural delivery, fluency, and context-appropriate language switching are essential. Language Requirements Primary Language (Native level – one required): Catalan (ca-ES: ...

    £41 Average bid
    £41 Avg Bid
    4 bids

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