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I'm looking for an expert in audio forensics to detect edits and tampering in recorded conversations. It’s about 1 min recording. Key tasks include: - Detecting mixing of two different audio sources in one file. - Providing a detailed report of findings. Ideal skills and experience: - Proficiency in audio analysis software. - Experience with forensic audio examination. - Attention to detail and analytical skills.
Project ID: 40737375
27 proposals
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Active 5 days ago
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27 freelancers are bidding on average $94 CAD for this job

As a seasoned and knowledgeable expert with over 25 years in the audio industry, I'm more than prepared to take on your project. My extensive experience includes technical audio location, creative sound design and post production. In fact, I have a Masters degree in Audio Production ratified by the University of Hertfordshire in the UK. My proficiency in various audio analysis software and my previous work as an audio engineer have given me a deep understanding of forensic audio examination. Attention to detail and analytical skills are not just buzzwords for me but ingrained qualities that I rely upon daily in my work. Additionally, I've had immense success working with teams that went on to win prestigious awards including SATV & Film Awards as well as an International Promax Award. With such a high level of experience and achievement, you can be assured of receiving the best quality analysis report from me within your deadline. Let's chat and get started on this project together!
$250 CAD in 7 days
8.0
8.0

Hi, I can analyze and enhance audio recordings with professional noise reduction, restoration, spectral analysis, voice isolation, artifact detection, and detailed audio processing while preserving the original evidence as much as possible. With 5+ years of audio editing and restoration experience, I’ll provide clean, carefully processed results using iZotope RX and Adobe Audition, with 6–8 revision rounds. Best regards, Creative Studio
$40 CAD in 1 day
6.1
6.1

Hey there, I am a professional audio engineer and freelance audio forensic expert for the last 6 years. - I use industry standard tools and techniques to achieve the best possible audio tampering detection unlike other freelancers here who use AI and other non-professional tools. - Many of my clients have used my enhanced files and analysis reports as evidences in their legal cases. I follow standard procedures and guidelines laid out by the esteemed AES (audio engineering society) which is very important in legal proceedings. - I provide detailed Audio authentication reports with advanced metadata details. Please feel free to text me for further discussion. Looking forward to hearing from you!
$45 CAD in 1 day
4.9
4.9

Hello, I’m a **professional audio engineer with 10+ years of experience** in audio editing, restoration, mixing, and detailed audio analysis. I can carefully examine your 1-minute recording to identify possible **edits, splicing, mixing of different audio sources, abrupt changes, background inconsistencies, and other signs of manipulation**. I use professional audio analysis and restoration software to inspect the recording at a detailed level, including waveform, spectral and frequency characteristics, noise/background consistency, transitions, and other technical indicators. I will provide you with a **clear and detailed report of my findings**, explaining any suspicious sections and the evidence observed during the analysis. I can start **ASAP**, provide an initial assessment quickly, and offer a **reasonable price** for this short recording. Please send me the original recording, preferably in its **original/uncompressed format**, and I can begin the analysis. **Regards, Jamil Ahmed**
$50 CAD in 1 day
4.3
4.3

Hello! There's only one way to truly tell if an audio has been tampered with and it has nothing to do with audio editing itself. Please reach out and I will gladly get this done for you with in a day. I'm sure you have questions, please feel free to reach out! Reagards, Abdul Wahid S.
$80 CAD in 1 day
4.2
4.2

Hello I can conduct a forensic examination of your 1-minute recording to determine whether it contains evidence of editing, splicing, manipulation, or mixing from different audio sources. My examination can include: • Waveform and spectral analysis • Detection of discontinuities, splices, edits and abnormal transitions • Frequency/spectrogram comparison to identify potentially different source material • Analysis of encoding, sampling and signal characteristics • Cross-segment comparison to identify inconsistencies in background noise, acoustics and recording characteristics • Assessment of whether multiple audio sources appear to have been combined I use professional forensic audio analysis tools including FFmpeg/FFprobe, Audacity, iZotope RX and Sonic Visualiser, applying a structured forensic methodology. You will receive a detailed technical report documenting the examination, observations, supporting evidence, screenshots/analysis outputs where appropriate, and a clear conclusion regarding any detected manipulation or source inconsistency. I can start immediately and maintain the original file as evidence without altering the submitted recording. Regards Kajal Majhi
$250 CAD in 7 days
4.2
4.2

I would love to examine your one-minute recording for signs of edits, source mixing, or other tampering using forensic audio analysis techniques. I’ll carefully document anomalies, methodology, and findings in a clear, detailed report suitable for review. Let’s chat for further details. Regards, Muhammad Mohid Ahmed.
$30 CAD in 1 day
3.1
3.1

Hi, I can professionally edit your Audio Forensics Specialist with a Low Budget according to your requirements. I have more than 4 years of experience in video editing. My profile is new here. So, I will give you high-quality work with unlimited revisions until you're satisfied. Check my work: https://www.freelancer.com/u/DosorothChandra I'm waiting for your response! Thank you. Best Regards Dosoroth Chandra
$100 CAD in 1 day
3.2
3.2

Hi Audio forensic analyst here. A 1-minute file is quick to inspect, but the reliability of the findings depends entirely on the file format (raw lossless WAV vs. compressed WhatsApp/MP3) and the acoustic environment. I can perform a multi-layer spectral and noise-floor discontinuity analysis using iZotope RX to detect: 1. Sudden shifts in room tone/ambient noise profiles. 2. Phase/waveform cut anomalies at the transition boundaries. 3. Reverb signature and frequency response mismatches between speakers. Deliverable: A structured PDF report detailing timestamps, spectrogram snapshots, and objective technical findings. (Note: This is a technical audio verification report for your private records, not a court-certified forensic testimony). Send the audio file over so I can inspect the audio metadata and spectral profile immediately.
$200 CAD in 1 day
3.1
3.1

Hi, I can analyze your 1-minute recording for signs of editing, splicing, cuts, recompression, or other potential tampering using a careful audio-forensics workflow. I’ll examine waveform continuity, spectral characteristics, background noise consistency, frequency patterns, compression artifacts, and transitions between segments to identify anomalies and document the findings clearly. With strong audio and post-production experience, I can provide a professional, evidence-focused assessment while distinguishing observable anomalies from conclusions that cannot be established from the recording alone. Portfolio: https://www.freelancer.com/u/mahadhasan012 Best regards, Mahad Hasan | Audio Forensics Expert
$30 CAD in 1 day
2.7
2.7

Hi, I can help with this. I have experience in forensic audio analysis, including detecting edits, splicing, and mixing of different audio sources, and I can provide a detailed forensic report. You’re also welcome to review samples of my previous work before placing an order. I can share relevant work samples upon request.
$165 CAD in 4 days
2.7
2.7

I’m Kaif Hasan. I saw your project and wanted to help you. I’d analyze the 1-minute recording using waveform, spectral, phase, and metadata-level checks to identify possible edits or mixing of different audio sources, then provide a clear report with supporting findings. 1. Can you provide the original recording in its highest-quality format? 2. Do you need a formal forensic-style report with screenshots and technical analysis, or a concise findings report? I’m new on Freelancer, but I have 7+ years of experience, and I’m offering the most reasonable rates to build great client relationships. Portfolio: https://www.freelancer.com/u/DigitalArtForge Best Regards, DigitalArtForge
$30 CAD in 1 day
2.3
2.3

I can examine your ~1-minute recording specifically for signs of editing, tampering, splicing, or mixing of different audio sources. My analysis will focus on measurable inconsistencies such as waveform discontinuities, spectral/background-noise changes, abrupt transitions, channel characteristics, and encoding/compression artifacts that may indicate material from different sources. I will provide: • Detailed examination of the original audio file • Identification of suspicious transitions or inconsistencies with timestamps • Assessment of whether the evidence is consistent with two sources being mixed • A clear written report explaining the findings and supporting observations I will avoid overstating conclusions where the audio evidence is inconclusive. Please provide the original recording in its highest-quality/native format rather than a re-exported or messaging-app-compressed copy where possible. I can complete the analysis and report within 2 days.
$30 CAD in 1 day
0.0
0.0

A one minute recording is short, but that is exactly where tampering hides. Two audio sources mixed into one file usually show up in the waveform itself, a shift in room tone, a change in noise floor, or a sudden splice that the ear misses but the spectrogram catches. I'll examine the file at sample level, review the waveform and spectrogram for inconsistencies, and document my findings in a clear report showing where the anomalies occur and how confident I am in each one. Send the recording over. I will run a first pass and tell you within the day whether the tampering is clear enough to document formally. That way you know exactly where the file stands before committing to a full report.
$100 CAD in 7 days
0.0
0.0

Detecting edits and tampering in audio can be crucial for ensuring the integrity of recorded conversations. I recommend utilizing specialized audio analysis software to assess the recording thoroughly. My approach combines advanced techniques with a meticulous eye for detail, ensuring accurate findings. My portfolio shows relevant work you can review directly on my profile. Have you considered any specific audio analysis tools that you prefer for this project? As a bonus, I can provide a summary of best practices in audio recording to help prevent future issues. Let's jump into a chat to look over the details together. Worst case, you walk away with a free blueprint for the project. Talk Soon Lee-Roy
$100 CAD in 7 days
0.0
0.0

Hi there, I read your project requirements regarding audio forensics and analysis for your 1-minute recording. I can carefully examine the file to detect any edits, cuts, or audio source mixing and provide you with a clear, detailed report of the findings. I will use professional audio analysis tools to inspect waveforms, spectral frequencies, and background noise consistency to identify any tampering. Looking forward to assisting you with this task. Best regards,
$140 CAD in 7 days
0.0
0.0

I see the importance of getting clear and accurate findings from audio recordings. If edits or tampering go unnoticed, it can lead to serious misunderstandings or misinterpretations down the line. I would analyze the recording closely, using specialized software to identify any mixing of different audio sources. Then, I'd provide a detailed report that outlines my findings clearly, so you have all the information needed to move forward confidently. I understand that revisions are part of the process, and I’m committed to ensuring you’re completely satisfied with the results. To tailor my work to your needs, could you share any specific software you prefer? Also, do you have a deadline for when you need the report?
$100 CAD in 7 days
0.2
0.2

Hello! I specialize in audio cleanup and restoration, manually processing low-quality recordings from voice recorders, surveillance cameras, phone calls, and other sources using professional software. This includes heavily noisy, difficult, and deliberately obscured recordings that standard processing can't handle. Send me your recording, and we'll go through it in detail together.
$80 CAD in 1 day
0.0
0.0

Hi, I can help examine your 1-minute recording for editing, splicing, source mixing, and other signs of manipulation. I’m an experienced audio professional with strong skills in audio restoration, spectral analysis, waveform analysis, noise-floor examination, phase/timing analysis, and forensic-oriented audio investigation. I’ll carefully examine the file for inconsistencies that could indicate multiple sources or edits and document the findings clearly. You’ll receive a concise but detailed forensic report explaining what was analyzed, the evidence found, and the limitations of what can be concluded from the recording. Send me the original audio file, and I can begin the examination immediately.
$120 CAD in 2 days
0.0
0.0

Hello, I am a Senior Scientific & Technical Consultant located in US. I came across your job posting and am very interested because I have experience with analytical investigation, technical data review, scientific assessment, and detailed reporting. For similar work, I have reviewed complex technical data and research materials, identified inconsistencies or anomalies, and documented findings in a clear, evidence-based format. My work requires careful examination of source information, attention to subtle differences, and separating confirmed findings from assumptions. Based on your project requirements, I understand that the main task is to examine the approximately one-minute recording for indications that two different audio sources have been mixed or that the recording has been edited or tampered with. The analysis should be systematic and supported by objective findings rather than simply relying on listening impressions. My approach would be to examine the recording at the waveform and spectral levels, review frequency and amplitude characteristics, identify discontinuities or anomalies, and compare different portions of the file for signs of source changes or manipulation. I would then document the findings, supporting observations, and relevant limitations in a concise forensic report. Kindly discuss the project with me, and I am looking forward to working with you. Best regards, Thanks.
$140 CAD in 7 days
0.0
0.0

Maple Ridge, United States
Member since Sep 28, 2026
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