
Millions of people use Freelancer to turn their ideas into reality.
Trusted by leading brands and startups
Audio signal processing is a subfield of signal processing that focuses on the computational methods of altering sound.
Hire Audio Signal Processing Experts to help you optimize the audio signals in your newest device

8.9
8.9
99%

Dinajpur, Bangladesh
$30 USD per hour
This is SRplanet an Agency founded in 2013. SRplanet is a team of Professional Video Editor & Filmmaker, Voice Over Artists, Website Designer & Developer, Architecture Designer, and a team of passionate Animators capable of creating immersive stories. ✅ Experience & Expertise in Video Editing & Animation industry: We are working with Freelancer since 2013 on Explainer Videos & Facebook, Instagram and other platforms ads. Our Expertise: ◉ 2D Animation Explainer video. ◉ 3D Animation Explainer video. ◉ Whiteboard Explainer Video. ◉ Voice Over ◉ Promotional And Commercial Video ◉ Music, Cinematic Video. ◉ 2D & 3D Model. ✅ Voice Over : Our team is proud to offer voiceover services in over 40 languages with a roster of more than 100 talented voiceover artists. Our expert team of linguists and sound engineers work together to ensure that our clients receive high-quality voiceovers that accurately convey their message in any language. Whether it's for a commercial, e-learning course, or documentary, our team has the knowledge and experience to deliver exceptional voiceover services that meet and exceed our clients' expectations ✅ 3D Modeling Expertise: At SRplanet, we specialize in high-quality 3D modeling services. Our experienced team utilizes advanced software like Maya, Blender, and Cinema 4D to create detailed and realistic 3D models. Whether you need architectural visualizations, product prototypes, or character designs, we ensure precision and artistic excellence in every project. Our dedication to quality craftsmanship and client satisfaction sets us apart in the field of 3D modeling. ✅ Web & Mobile App Design & Development At SRplanet, we create modern, user-friendly websites and mobile applications tailored to business needs. Our team specializes in designing and developing responsive websites, web applications, e-commerce platforms, and Android/iOS mobile apps that combine great user experience with reliable performance. Whether you need a business website, custom web portal, mobile app, or complete digital solution, we deliver scalable and high-quality products using the latest technologies and industry best practices. Choose SRplanet and unlock a world of possibilities for your creative projects. Thank you for considering us as your trusted partner. SRplanet

7.2
7.2
96%

CABA, Argentina
$20 USD per hour
Welcome to Zorzal Studios, where creativity meets innovation in the realm of audiovisual productions. We are a dynamic production company dedicated to crafting immersive experiences through the fusion of sound and visuals. Specializing in music and audio production, we channel our passion for storytelling into every project we undertake. With a team of experienced professionals and state-of-the-art equipment, we bring ideas to life with precision and creativity. Whether you're an independent musician looking to elevate your sound or a business seeking to engage your audience through compelling visual content, we have the expertise to deliver results that exceed expectations. Furthermore, we take pride in being part of the Preferred Freelancer program, ranking among the top 2% of freelancers on the platform, ensuring high-quality service and commitment to every project. Services include: ✅ Music Production ✅ Original Music Composition for Films, Games, Apps, etc. ✅ Mixing and Mastering ✅ Sound and Audio Post-Production for Audiovisual projects ✅ Audio Editing and Post-Production for Audiobooks and Podcasts ✅ Voice Overs ✅ Audio Cleaning and Restoration ✅ Music Productions: https://soundcloud.com/zorzalstudios ✅ Music Prod. Mix and Master: https://open.spotify.com/playlist/2sjFEVruk11pdYnosxrYlA?si=58b05d2b64bd40ac&utm_medium=share&utm_source=linktree&nd=1&dlsi=a9d2dce6cb3642dc

8.6
8.6
100%

Casa, Morocco
$50 USD per hour
Hello and welcome! Thank you for visiting my profile. I’m Salem, a passionate Video Editor, Animator, and Audio Engineer with 7+ years of experience helping brands, creators, and businesses tell their stories through powerful visuals and sound. I take pride in delivering high-quality, polished work that truly reflects your vision — with unlimited revisions and a 100% satisfaction guarantee. Whether you need a cinematic edit, engaging motion graphics, or professional audio mixing, I’ll make sure your project stands out. 📩 Contact me to explore my full portfolio, I’ll be happy to share the link in chat. Let’s collaborate and bring your ideas to life! Best regards, Salem

7.6
7.6
98%

Lahore, Pakistan
$16 USD per hour
✋ Hi! I am an Electrical/Electronics Engineer. I am expert in ✅ Professional PCB design( EAGLE, ALTIUM, easyEDA, PROTEUS, KICAD) ✅ Arduino/ Microcontroller(Arduino IDE, Platform IO, MPLAB, MIKROCHIP, ETC) ✅ TFT and Touch screen designs (Nextion, Visual designer, Nuritake, layout designer) ✅ MATLAB/Simulink ✅ IOT Technologies (BLE, Wi-Fi, RF, GSM, GPS, ESP32/ESP8266, STM32, MQTT, BLYNK, CODE BLOCKS) ✅ Mobile App Development( IOS, Android) ✅ CIRCUIT SIMULATION (Pspice/LTspice/Proteus/Multisim) ✅ C++/C/Java/Python/Php ✅ 3D Designs (AutoCAD/ Solid works/FUSION 360) ✅ MATHS /DIGITAL ELECTRONICS expert I am very experienced and I am sure you will be satisfied with my work. So please reach out to me so that we can discuss your project in greater detail!

8.7
8.7
98%

Lima, Peru
$30 USD per hour
Bachelor of Software Engineering, Video and Audio Expert, Senior 3D CAD Designer, Advanced Level in English and Native Spanish Speaker, committed to work, responsible and punctual. ✅ +350 projects completed for big enterprises and international clients ✅ Unlimited revisions ✅ Full time freelancer ✅ Excellent Communication ✅ 100% satisfaction I will help you with any project related to: ✅ Software Engineering: Website Development, Mobile Apps, Database Administration, Data Analysis, Automations and more! ✅ Video: Video Editing, 2D & 3D Animation, Whiteboard Videos, Motion Graphics, Promotional Videos, Reels, Visual Effects and more! ✅ Audio: Audio Editing, Voice Over, Audio Production including Mixing and Mastering of Music (I also offer Promotion for Artists), Podcasts and more! ✅ 3D CAD Designer: CAD Modeling, Solidworks, Product Design, 3D Rendering, Architectural Visualization, STL Files for 3D Printing, Technical Drawings, Product Visualization, Interior & Exterior Rendering, SketchUp Modeling, 3D Mockups and more! Click on "Request Quote" and let's start working on your project!

7.6
7.6
99%

Saldan, Argentina
$15 USD per hour
✅ Audio Engineering ✅ Music production ✅ Composing ✅ FL Studio, Studio One and Ableton ✅ Soundtracks, orchestral or instrumental music, beatmaking. ✅ Multinstrumentalist. ✅ Music teacher ✅ Mixing and Mastering ✅ Audio restoration and enhancement 👇👇👇 Listen to all my work in the portfolio 👇👇👇

9.2
9.2
100%

BANGKOK, Thailand
$130 USD per hour
Hi, I’m Marjan, Website & Software Developer with 16 years of experience and 4,400+ successful projects delivered worldwide. I help businesses build fast, secure, professional and conversion-focused websites, eCommerce stores, custom web applications, booking systems, dashboards and scalable digital platforms. My expertise includes: • WordPress, Elementor & Custom Theme/Plugin Development • Shopify Store Design, Setup & Customization • Full-Stack Web Development • SaaS, MVP & Custom Web Application Development • Booking Funnels, Lead Generation Forms & Dashboards • PHP, JavaScript, HTML, CSS & API Integrations • Wix, Webflow & Business Website Development • Technical SEO, Speed Optimization & Website Maintenance What you can expect when working with me: • Clear and professional communication • Clean, maintainable and scalable work • Careful attention to detail • On-time delivery and long-term support Whether you need a business website, Shopify store, WordPress development, custom platform, SaaS MVP, booking funnel or ongoing website support, I can help you plan, build and launch it properly. Let’s discuss your project and create something that works for your business.

8.7
8.7
98%

Vacoas, Mauritius
$25 USD per hour
Benni Translation Services is one of the top-recommended companies on Freelancer.com, known for providing exceptional quality in various linguistic services. We specialize in translation, transcription, editing, proofreading, interpretation, subtitling, voice-over, and dubbing services in multiple global languages. ⭐ Why Choose Benni Translation Services? ⭐ ✅ 100% Human Translation Guarantee ✅ High Quality and Error-Free Output ✅ No Outsourcing – In-House Translators Only ✅ Careful Handling and Protection of Business Data ✅ Available 24/7 Our team comprises professional and highly experienced translators who are native speakers of their target languages. They have extensive experience across various fields of expertise. If you are looking for professional services and high-quality results, choose Benni Translation Services. We look forward to discussing your project in detail and establishing a successful collaboration.

9.2
9.2
98%

PHULBARI, Bangladesh
$10 USD per hour
➤Welcome to the BTranslated Professionals Services◄ ➤We are a team of highly skilled professionals with the experience, training, and background you are looking for, ready to work together to deliver custom-tailored solutions of quality and cost-effectiveness with a fast turnaround at competitive rate. ➤We provide services of Translation, Voiceover, Proofreading, Transcription, Video Editing, Audio Editing, Animation 2D/ 3D, Whether you're a startup, established business, or content creator, our expert team is here to elevate your online presence, business needs and media content. We offer a range of services designed to meet your unique needs. ➤We specialize in providing top-notch expertise in the following key areas◄ ►Video Editing◄: Transform your raw footage into compelling visual stories with our professional editing services, tailored to engage your audience. Elevate your content with our skilled video editing team. From conceptualization to final cut, we bring creativity and precision to ensure your videos stand out in today's competitive digital landscape. We provide Promo videos, Travel Videos, Explainer videos, Training Videos, shorts, reels, wedding videos, Motion Graphics, and many more. ➤Translation◄: World Wide Translation –We specialize in precise language translation services, catering to businesses worldwide. With over 10 years of entrepreneurial experience, we have expanded our expertise to include comprehensive 50+ language solutions. ►Voiceover◄: We have a wide connection of 2000+ voiceover artists worldwide in 60+ languages. We provide 100% authentic voiceover done by humans with commercial and broadcast rights. All the voiceovers are recorded in studios and all our artists are trained edge professionals whether you need a voiceover for your Commercial or your, audiobook, narration, or Podcast. Anything that needs a voice. We can do it in any language in any tone. You name it we do it. ►Animation◄: We have a team of 20 people who are experts in creating custom animations and 2D/3D animations in different styles. If you need a whiteboard animation or a custom motion graphics animation. Our team can create it for you. All our team members have more than 8+ years of experience in creating professional animations for different brands and businesses. We can create 2D/3D Explainer Animation, Custom Animation & Whiteboard Animation, 2D Costume characters, storyboard, doodles, and Logo animation. We are one of the top teams in animation and video editing. All the work will be done according to your example and description. ➤We believe every client is unique, so we tailor our approach to fit your specific needs. Collaboration is key, and we're committed to a smooth, transparent, and enjoyable experience from start to finish. Check out our portfolio for a glimpse of our passion for excellence and meticulous attention to detail. Connect with us today, and let's create something amazing together➦
Audio signal processing is the engineering discipline of analyzing, modifying, and synthesizing sound signals using mathematical algorithms and digital tools to improve quality, extract information, or create new audio experiences. An audio signal processing expert designs and implements DSP algorithms that filter noise, compress dynamics, equalize frequencies, encode formats, and power features like voice recognition, spatial audio, and real-time effects across software, hardware, and embedded systems.
Hiring a digital signal processing specialist gives you measurable improvements in audio fidelity, latency, intelligibility, and computational efficiency. Whether you are building a hearing aid, a music production plugin, a voice assistant, or a streaming codec, the deliverables translate directly into product performance, user experience, and competitive differentiation.
Typical outputs from an audio DSP engineer include working algorithm implementations, optimized C or C++ code, technical documentation, measurement reports, and integration support. Strong specialists pair theoretical rigor with practical engineering, validating every algorithm against perceptual and objective benchmarks before shipping.
An audio signal processing freelancer handles a wide range of technical work depending on your product domain. Common deliverables include:
Audio DSP work draws on a specific stack of mathematical and software tools. Look for fluency with MATLAB and Octave for prototyping and analysis, Python with NumPy, SciPy, and librosa for research and ML pipelines, and C or C++ for production-grade real-time code. Plugin developers commonly work in JUCE, iPlug2, or the SDKs from Steinberg and Avid.
For embedded targets, expect experience with CMSIS-DSP, TI C6000, Analog Devices SHARC, Xilinx Vivado HLS, or Qualcomm Hexagon. Machine learning specialists use TensorFlow, PyTorch, ONNX Runtime, and frameworks like NVIDIA NeMo or SpeechBrain. Measurement and validation typically involve Audio Precision, REW, Smaart, or custom test rigs running impulse response and THD+N analyses.
Audio signal processing experts serve a broad set of markets. Consumer electronics teams hire them for headphones, earbuds, soundbars, and smart speakers. Telecommunications and unified communications platforms need them for VoIP clarity, AEC tuning, and codec optimization. Music technology companies build virtual instruments, mixing plugins, and mastering tools.
Other common contexts include automotive infotainment and active noise cancellation, hearing aids and assistive listening devices, gaming and XR audio engines, broadcast and post-production, automotive voice assistants, medical ultrasound and biosignal monitoring, and defense applications such as sonar and acoustic surveillance.
Strong DSP engineers combine deep mathematical fundamentals with shipped product experience. Look for a degree in electrical engineering, computer science, acoustics, or applied mathematics, and evidence of work on real-time systems where latency and CPU budget mattered. Portfolio markers include published plugins, open-source DSP libraries, conference papers at AES or ICASSP, patents in audio processing, or shipped firmware on commercial devices.
Verify that candidates can read and implement algorithms from journal papers, write efficient fixed-point or SIMD-optimized code when required, and validate output with both objective metrics (PESQ, POLQA, STOI, THD, SNR) and listening tests. Sample interview questions you can use:
Audio signal processing often overlaps with related disciplines you may need on the same project. These include acoustics and electroacoustic design, embedded firmware development, machine learning engineering for speech and audio, audio plugin development, mixing and mastering engineering, and music information retrieval. Scoping these adjacencies early helps you decide whether one specialist can cover the work or you need a small team.
Freelancer.com gives you access to a global pool of DSP engineers, plugin developers, and acoustic specialists across every time zone and price point. You can compare bids from independent professionals with verified profiles, published portfolios, and ratings from past clients, all on a single platform built for technical project sourcing.
The marketplace covers everything from quick algorithm prototypes to long-term embedded audio firmware engagements. Clients set their own budgets and receive competitive bids, and Milestone Payments hold funds in escrow until each deliverable is approved. That structure makes it practical to hire on Freelancer.com for both exploratory R&D and production-critical work.
Ready to improve your product's sound quality, voice clarity, or audio performance?
Hiring a DSP specialist works best when you treat the brief as a technical specification rather than a wish list. Audio signal processing is a precise field, so the more concrete your requirements, the more accurate the bids you receive. The process below walks you from project post to award.
The clarity of your brief is the single biggest factor in bid quality. A well-scoped audio DSP brief filters out generalists and attracts engineers whose toolchain and domain experience match your product. Head to the
Bids on a DSP project are mini technical proposals, not just price quotes. Read each one for how the freelancer interprets your requirements, what algorithmic approach they propose, and whether the timeline reflects realistic effort for design, implementation, and validation. Use this stage to shortlist candidates whose technical reasoning matches the brief.
The final decision blends proposal quality with profile evidence. Audio DSP is a field where consistency matters more than a single impressive demo, so weigh the breadth of a freelancer's portfolio and the substance of their client reviews. Look for repeated success on projects with similar technical constraints to yours.
Timelines vary with scope. A focused task like tuning an EQ curve or porting an existing algorithm to a new platform can take a week or two, while designing a new noise suppression system or shipping a commercial plugin typically runs several months including validation and listening tests.
Yes. Many audio signal processing experts on Freelancer.com take short engagements such as algorithm reviews, code audits, latency analysis, or help reading and implementing a research paper. Define the deliverable clearly in your brief so bidders can scope the work accurately.
An audio engineer typically works on recording, mixing, and mastering using existing tools. An audio signal processing expert builds the algorithms and software those tools rely on, working in C++, MATLAB, or Python to implement filters, effects, codecs, and machine learning models at the DSP level.
Modern speech enhancement increasingly blends both. Classical DSP handles deterministic stages like AEC and beamforming, while ML models handle nonstationary noise and source separation. Look for a freelancer comfortable with both paradigms, or hire two specialists who can collaborate.
Many can. Confirm experience with your specific target, whether that is an ARM Cortex-M microcontroller, a dedicated DSP core, or an FPGA, and ask about their familiarity with fixed-point arithmetic, SIMD intrinsics, and CPU and memory profiling on resource-constrained devices.

Freelancer Enterprise
Use our workforce of 89 million to help your business achieve more.

Freelancer API
Why hire people when you can simply integrate our talented cloud workforce instead?
Post a project today and get bids from talented freelancers
Get some inspiration from Audio Processing projects

Game.
$50 USD in 9 days.

Package Design.
$110 USD in 4 days.

Music Video.
$300 USD in 12 days.

Interior Design.
$269 USD in 14 days.

Poster.
$100 USD in 3 days.

Flyer Design.
$15 USD in 1 day.

Concept Design.
$100 USD in 10 days.

Socials Post.
$50 USD in 6 days.
Millions of users, from small businesses to large enterprises, entrepreneurs to startups, use Freelancer to turn their ideas into reality.
89.0M
89.0M
Registered Users
25.7M
25.7M
Total Jobs Posted