Martin Santiago P.
Audio Editor | Dialogue Editing & Cinematic Sound Design
I help content creators, podcasters, and audiobook authors turn raw recordings into professional, broadcast-ready audio. Audio Engineer certified by the School of Sound (A Coruña), with additional coursework at Berklee College of Music, and 11+ years in audio production and post-production. My work sits at the intersection of technical precision and creative sound design. 🎙 Dialogue & Podcast Post-Production • Dialogue editing, cleanup, and difficult-recording restoration (noise, room tone, reverb, clicks, pops) • EQ, compression, de-essing, speaker leveling, multitrack mixing • Consistent sound across episodes, speakers, and full productions • Podcasts, creator content, audiobooks, e-learning, and voice-over 🎧 ACX / Audible Mastering • Mastering to ACX's exact RMS and peak specs, first submission pass • Noise floor control and dialogue treatment built for spoken-word narration 🎬 Cinematic Sound Design • Custom SFX, impacts, transitions, atmospheres, and Foley • Music selection, licensing-safe sourcing, editing, and placement • Layering dialogue, music, and effects into a cohesive final mix 🎚 Mixing, Mastering & Platform Delivery • Loudness and format specs for YouTube, Spotify, and Audible/ACX • Balanced, consistent final mixes ready for release Send me your raw recordings or project details, and I'll tell you exactly how I'd approach it. Let's make it sound as good as it deserves. 🚀
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $5.3k
Billed in all: $24,251$24k
$753 in the last 6 months
Across 8 contracts
Across 33 contracts
Earnings, last 30 days
Skill rankings: Top 5% in Audio Recording
Ranked by MRR among everyone on Upwork with the skill.
- #16Spotify186 freelancers · 🇪🇸 #1Top 9%🇪🇸#1 of 1
- #18Ambient Sound Design199 freelancers · 🇪🇸 #3Top 9%🇪🇸#3 of 7
- #32iZotope RX251 freelancers · 🇪🇸 #2Top 13%🇪🇸#2 of 4
- #35Dialogue Editing295 freelancers · 🇪🇸 #2Top 12%🇪🇸#2 of 6
- #44Audio Restoration607 freelancers · 🇪🇸 #3Top 7%🇪🇸#3 of 7
- #48Audiobook779 freelancers · 🇪🇸 #3Top 6%🇪🇸#3 of 11
- #53Audio Effects600 freelancers · 🇪🇸 #3Top 9%🇪🇸#3 of 7
- #60Audio Recording1,127 freelancers · 🇪🇸 #3Top 5%🇪🇸#3 of 27