How user testing can make your product great
Get your product into the hands of test users and you'll walk away with valuable insights that could make the difference between success and failure.
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:
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!
Daripada 18,673 ulasan, klien menilai Audio Signal Processing Experts 4.92 daripada 5 bintang.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:
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!
Daripada 18,673 ulasan, klien menilai Audio Signal Processing Experts 4.92 daripada 5 bintang.I’m seeking a controlled stereo-stage intervention on one AI-generated track to assess whether perceptual strain can be meaningfully reduced without altering the musical structure, arrangement, or character. This is not a remix, production overhaul, or songwriting project. The scope is strictly limited to moderate spatial and spectral recalibration at the stereo stage, with the objective of evaluating whether a measurable comfort delta can be achieved. Deliverables requested: Before and after versions of the same track Brief written explanation of the intervention approach Observations on limits and repeatability Outline of timeframe and fee The purpose of this phase is to evaluate whether the perceptual improvement justifies further exploration. I will take approximately one week af...
Saya memiliki sebuah album musik ber-genre Pop yang hanya tersedia di format vinyl. Rekaman ini terdengar banyak static noise dan saya ingin memulihkannya tanpa menghilangkan karakter asli piringannya. Tolong gunakan software editing audio standar industri (Izotope, Cedar, atau setara) dan teknik restorasi presisi agar setiap detail diproses dengan hati-hati. Prioritas saya adalah mendapatkan hasil akhir yang bersih, bebas statis, tetap hangat, dan setia pada sumber aslinya. Ruang lingkup: • Hilangkan static noise tanpa menekan dinamika atau menipiskan frekuensi tinggi. • Jaga transien, ambiance, dan nuansa analog khas vinyl. • Lakukan pemeriksaan fase, keseimbangan stereo, serta normalisasi level secara musikal. Saya membutuhkan: 1. File master WAV 24-bit/96 kHz a...
I need a 45 vinyl record edited. Key tasks include: - Audio restoration: Removing pops and clicks, enhancing sound quality, and balancing audio levels. Ideal Skills and Experience: - Experience with vinyl record restoration - Proficiency in audio editing software - Attention to detail and high-quality output
I have a pre-processed collection of aligned audio-video clips and I want to push them through the AVHubert CoDA pipeline to obtain a clear Character Error Rate (CER) metric. The raw training and validation splits are ready; what’s missing is the glue code and know-how to hook my data into the official AVHubert / fairseq framework, run inference, and surface the CER report. Here’s what I expect at the end: • A working script or set of commands that load my dataset and execute AVHubert CoDA end-to-end (feature extraction, decoding, and CER calculation). • A brief README summarising environment setup (Python, PyTorch, fairseq, ffmpeg, KenLM, etc.) and any extra dependencies. • The final CER value plus the log files or JSON outputs that back it up, so I can re...
I need an open-source Android app (feel free to use cross-platform frameworks) that lets hobby musicians trigger samples from a grid of pads with the shortest possible touch-to-sound latency. When a user taps a pad, the assigned audio file—MP3, WAV or FLAC—must play instantly and cleanly. Pad should have two modes: one-shot and looping toggle. No additional processing such as reverb or an equalizer is required; keeping latency low is the priority. The grid itself is fully customizable: users decide how many rows and how many columns they want, then assign colors and labels to each pad. All of that, together with the file bindings and an individual volume level per pad, should be saved into named presets that can be loaded or shared later. Preset data should be stored in human...
Hello, I am building a small data collection tool for a medical AI research project. The goal is to collect doctor-patient role-play audio data and prepare it for AI training. I need a simple system with the following features: 1) Web-based interface (works on mobile and desktop) 2) Upload audio files (WAV/MP3) 3) Automatic speech-to-text using Whisper 4) Editable transcript (dialect correction) 5) Field for medical Arabic normalization 6) Term notes input 7) Automatic folder/package generation per session 8) Cloud storage (Google Drive / S3 or similar) This is Phase 1: Data collection only (no diagnosis, no reports). Tech preference: - Frontend: Web (React or simple HTML) - Backend: Python (Flask/FastAPI) - ASR: Whisper - Storage: Cloud + Local Deliverable: A working MVP that allow...
I have a two-minute phone recording where a loud television overwhelms the conversation. The clip contains only female voices, and right now they sound muffled beneath the background noise. The task is twofold and both parts matter equally to me: first, remove or greatly suppress the TV sounds; second, bring the voices forward so every word is clear and natural without introducing distortions or robotic artifacts. Please work from the original file and deliver a cleaned, ready-to-share WAV or high-quality MP3 once complete. A brief note on the processing chain you used (e.g., iZotope RX, Adobe Audition, Audacity plug-ins, AI denoising, etc.) will help me understand the steps for any future edits. If a quick preview can be supplied before final export so I can confirm intelligibili...
We are looking for a reliable and detail-oriented podcast editor for ongoing daily work. We produce a short-form audio only podcast episode every weekday (5 days per week). Each episode is approximately 2–3 minutes long and consists of: • Intro audio • Main content (single speaker voice recording) • Outro audio Scope of work per episode: • Insert intro and outro audio files • Edit the voice recording to remove mistakes, pauses, stumbles, and unnecessary gaps • Clean and optimise audio for clarity and consistent volume • Export the final episode to our specified format (MP3) • Upload the completed file to our Dropbox folder What we are looking for: • Fast turnaround • High attention to detail • Consistent audio qual...
I need the audio of a 14-minute speech/interview video cleaned up. The main issue is distortion. Ideal Skills and Experience: - Proficiency in audio editing software - Experience with noise reduction and audio enhancement - Attention to detail - Ability to deliver high-quality audio Please include detailed project proposals in your application.
We are looking for a reliable and detail-oriented podcast editor for ongoing daily work. We produce a short-form audio only podcast episode every weekday (5 days per week). Each episode is approximately 2–3 minutes long and consists of: • Intro audio • Main content (single speaker voice recording) • Outro audio Scope of work per episode: • Insert intro and outro audio files • Edit the voice recording to remove mistakes, pauses, stumbles, and unnecessary gaps • Clean and optimise audio for clarity and consistent volume • Export the final episode to our specified format (MP3) • Upload the completed file to our Dropbox folder What we are looking for: • Fast turnaround • High attention to detail • Consistent audio qual...
We are looking for a reliable and detail-oriented podcast editor for ongoing daily work. We produce a short-form audio only podcast episode every weekday (5 days per week). Each episode is approximately 2–3 minutes long and consists of: • Intro audio • Main content (single speaker voice recording) • Outro audio Scope of work per episode: • Insert intro and outro audio files • Edit the voice recording to remove mistakes, pauses, stumbles, and unnecessary gaps • Clean and optimise audio for clarity and consistent volume • Export the final episode to our specified format (MP3) • Upload the completed file to our Dropbox folder What we are looking for: • Fast turnaround • High attention to detail • Consistent audio qual...
I need an expert to tune a DSP (Digital Signal Processor) for a custom-built Bluetooth speaker aimed at delivering a balanced sound profile across all music genres. The speaker will be used primarily for music. Requirements: - Use of Sigma Studio for DSP tuning - Tailoring sound profile to specific speaker and box size - Experience with balanced sound profiles - Knowledge of various music genres The ideal candidate should have a strong background in audio engineering and experience with DSP software.
I need a skilled audio engineer to isolate two female voices from a 37-minute M4A audio file with significant background noise (male voices). The task involves removing two male voices while retaining the clarity of the female voices for personal listening. Requirements: - Experience with audio editing and voice isolation - Proficiency in handling M4A files - Ability to isolate a voice from other overpowering voices Ideal Skills: - Familiarity with audio editing software (e.g., Audacity, Adobe Audition) - Attention to detail - Good ear for audio quality Please provide a sample of previous similar work and estimate the time required for completion.
I have roughly seven hours of recorded interviews that need to be turned into a clean, text-based transcript for later research analysis. The files are far from studio quality—there is noticeable background noise in places and several different voices come in and out of each session—so automated tools are struggling. I therefore need the entire job completed manually by someone comfortable isolating overlapping speech, catching softer comments, and preserving the meaning of every utterance. Here is what I’m looking for: • A full, verbatim transcript delivered as either a Word document or Google Doc. • Clear identification of each speaker whenever the voice changes (simple labels such as “Interviewer,” “Participant 1,” etc. are fine). ...
I am looking for an experienced Q-Sys programmer to set up an audio system for a recreation facility. Individual must be located in the Lower Mainland. Requirements: - Integrate microphones, aux inputs, amplifiers and speakers - Integrate Bluetooth into the system - Implement automatic gain control - Capable of building GUI for 2 control surfaces - "Page All" for entire facility and individual paging for 3 different zones Ideal Skills: - Expertise in Q-Sys programming - Experience with audio setups - Knowledge of audio processing features - Experience in building simple GUI for user control
Senior C++ Audio Software Developer (GUI & Systems) Project: SQNT – A Next-Generation Live Performance Host Stack: C++, JUCE, Dear ImGui, Python API Role: Contract-to-Hire / Project-Based About the Project SQNT is a specialized, non-linear performance host designed to bridge the gap between hardware workflows (Elektron-style) and VST power. We are moving from a high-functioning prototype into a polished, commercial-ready release. We need a developer to lead the GUI overhaul and standardize our core codebase for a professional launch. The Role We are looking for a C++ developer with deep experience in audio software. You will be responsible for: GUI Transformation: Transitioning the current interface from Dear ImGui to a custom, high-performance, and high-contrast stage-ready UI ...
I have several crystal-clear audio recordings that must be converted into polished, accurately punctuated text. Once we begin, I’ll share the exact lengths and preferred file format, but expect straightforward speech with minimal background noise. Here’s what I need from you: • A separate Word or Google Doc for each file, delivered in the same order I provide them. • Correct spelling, grammar, and punctuation throughout. • Speaker labels whenever more than one voice appears. • Optional two-minute timestamps—let me know if including them affects your turnaround. Because the audio quality is excellent, I’m aiming for near-perfect accuracy and a fast delivery window. When you reply, include your standard rate per audio minute and how m...
WebRTC Call Recording Issues in Desktop Dialer (JsSIP) We are working on a desktop VoIP dialer built using JsSIP and WebRTC and are facing multiple issues related to audio call recording that need to be analyzed and fixed. Issues Observed 1. Conference Call Recording Controls o User-facing Start / Stop recording buttons do not work reliably during conference calls. o Recording sometimes does not include all participants or does not stop correctly. 2. Critical: Background Audio Recording o Audio recording sometimes continues or restarts without explicit user action or permission. o This is a privacy and browser policy compliance issue and must be handled strictly via user consent and proper MediaStream cleanup. 3. Recording Failure During Multiple Calls o When handling multiple or consecuti...
We are looking for a reliable and detail-oriented podcast editor for ongoing daily work. We produce a short-form audio only podcast episode every weekday (5 days per week). Each episode is approximately 2–3 minutes long and consists of: • Intro audio • Main content (single speaker voice recording) • Outro audio Scope of work per episode: • Insert intro and outro audio files • Edit the voice recording to remove mistakes, pauses, stumbles, and unnecessary gaps • Clean and optimise audio for clarity and consistent volume • Export the final episode to our specified format (MP3) • Upload the completed file to our Dropbox folder What we are looking for: • Fast turnaround • High attention to detail • Consistent audio qual...
I'm looking to create an autofish system that reacts to water splash sounds. Requirements: - The system should respond only to water splash sounds. - Input method for sounds should be pre-recorded. - Integration with provided YouTube link audio is necessary (convert to required format if needed). - Also want it to look in chat for the words "Turbo Fishing has procced" if it reads that it'll automatically (or the sound of a firework exploding) It'll automatically click the right click at 20cps for 7 seconds - Some sort of easy GUI Ideal Skills & Experience: - Experience with sound recognition and automation systems. - Proficiency in audio processing and conversion. - Knowledge in fishing technology or related automation. Please include any relevant experienc...
I have an existing Angular application that already uses WebRTC, but connection drops, inconsistent audio-video quality, and some brittle glue code are hurting the experience for both our internal team and our external clients. I want the video-conferencing and voice-calling flows rebuilt so they feel rock-solid and native to Angular rather than an add-on. You will dive into the current codebase (Angular 18, TypeScript) to refactor the signaling layer, configure STUN/TURN properly, and tighten up state management so renegotiations no longer break active sessions. Expect to profile bandwidth, tweak codec preferences, and ensure the change detection cycle is not blocking media threads. Deliverables • Stable one-to-one and group video calls that recover gracefully from network blip...
I'm looking for a skilled music cutter to prepare a special first dance track and ceremony track for my wedding. I have specific songs in mind and will provide the list. Requirements: - Experience with audio editing software - Ability to seamlessly blend and cut music - Attention to detail and a good ear for transitions - Prompt communication and delivery Please share relevant past work and experience.
I need an experienced audio engineer to enhance some radio audio recordings. The main focus is on clarity improvement. Key Requirements: - Enhance existing radio audio recordings - Primary focus on clarity improvement Ideal Skills and Experience: - Proficiency in audio editing software (e.g., Audacity, Adobe Audition, Pro Tools) - Strong understanding of audio processing techniques - Experience with radio audio is a plus - Attention to detail and ability to meet deadlines Please provide samples of previous work.
Project: ESP32-Based Talking Plush Toy – Prototype Development Project Overview I’m building a screen-free talking plush toy for kids (3–7 years). The goal is to create a working prototype (V1) that demonstrates: Calm audio interaction Simple button & Bluetooth (BLE) control Safe, battery-powered operation This is prototype-only, not mass production. Scope of Work The freelancer will: Build a working ESP32-based prototype Implement audio playback (pre-recorded voice files) Support button-based triggers Implement BLE connectivity (basic commands from phone) Ensure safe power & insulation for a prototype Share code + wiring diagram + build instructions Core Features (V1) ESP32 dev board Pre-recorded audio playback (stories, phrases) 1–2 physical buttons BLE co...
I have a clip that was shot beside a busy street and the constant traffic rumble has buried both my questions and the guest’s answers. I need the traffic noise taken out and the dialogue brought forward so every word is clear and natural-sounding.
I have a short video clip whose dialogue is buried under wind noise. I must be able to hear every word clearly so I can understand what’s being said and recognise who is speaking. The source file is ready to share immediately. I need the voice isolated, the noise removed, and the volume leveled so normal playback on headphones or laptop speakers sounds clean and intelligible. A fast turnaround is important—ideally within the next day or two. Most engineers tackle this with tools such as iZotope RX, Adobe Audition, or similar spectral-repair software, so experience with those (or equivalent) is essential. Deliverables • A restored audio track in WAV or high-quality MP3 • The original video re-synced with the cleaned audio (same resolution and length) • ...
I need the the guys voice completely cut out and the other voices in the background to be heard, there is whispering and would like to know who is talking in the background and if there is more than two people, there is a women and child and a guy talking to the women but need to know if there is other people while on the phone call Requirements: - Audio editing software proficiency - Experience in noise reduction techniques - Attention to detail for clear voice preservation Ideal Skills: - Audio engineering background - Familiarity with noise cancellation tools - Ability to deliver high-quality, clean audio Please ensure the final output retains the original voice clarity without any TV sound interference.
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): Spanish (esES) ...
Get your product into the hands of test users and you'll walk away with valuable insights that could make the difference between success and failure.
Learn how to hire and collaborate with a freelance Typeform Specialist to create impactful forms for your business.