StretchLearn Course

Polish Any Recording to Broadcast Quality

Master noise reduction, EQ, compression, and loudness delivery for podcasts, dialogue, and voiceover.

Beginner9 hrSelf PacedRegistered

Course Overview

What this course is designed to develop

This course walks through every stage of audio post-production used by professional sound editors: cleaning noisy location recordings, sculpting tone with EQ, controlling dynamics with compression and limiting, and delivering files that meet LUFS targets for streaming and broadcast. You will work with real-world session examples in Audacity, Adobe Audition, and Reaper, learning the underlying signal-processing principles so the skills transfer across any DAW. By the end, you will be able to take any recorded track — podcast interview, voiceover, dialogue — and deliver a polished, standard-compliant file with confidence.

Learning Outcomes

What the learner should be able to understand, build, or execute.

Apply broadband noise reduction and spectral repair to remove hiss, hum, clicks, and room ambience from recorded dialogue

Design EQ curves that enhance intelligibility and warmth without introducing harshness or mud

Configure compression settings — threshold, ratio, attack, release, knee — to control dynamic range for speech content

Build a complete post-production signal chain with de-essing, gating, limiting, and loudness normalization

Export deliverables that conform to platform loudness standards including -16 LUFS (podcasts), -23 LUFS (EBU R128), and -14 LUFS (streaming)

Diagnose common audio problems by ear and select the appropriate processing tool to fix them

Curriculum Preview

Inside the curriculum: a structured path from fundamentals to execution.

Preview the course structure, see how the modules build on one another, and understand the path this program is designed to take you through.

Module 1

Module 1: Understanding the Audio Post-Production Chain

Map the complete signal path from raw recording to final export and build the mental model needed to diagnose problems at each stage.

3 lessons

How Audio Post-Production Works: Signal Flow and GoalsContent · 45 min

Preview Enabled

Reading Waveforms and SpectrogramsContent · 45 min

LMS Access

Setting Up Your Session and Capturing Room ToneContent · 45 min

LMS Access

Module 2

Module 2: Noise Reduction and Audio Repair

Remove hiss, hum, clicks, and room noise using broadband reduction, notch filtering, spectral repair, and declicking tools.

3 lessons

Broadband Noise Reduction: Reducing Hiss Without ArtifactsContent · 45 min

LMS Access

Removing Hum, Clicks, and Mouth NoiseContent · 45 min

LMS Access

Evaluating Your Clean Track Before ProcessingContent · 45 min

LMS Access

Module 3

Module 3: EQ, Compression, and De-essing

Shape tone and control dynamics to produce intelligible, warm, broadcast-quality speech using equalization, compression, and de-essing.

3 lessons

EQ for Speech: Clarity, Warmth, and Problem FrequenciesContent · 45 min

LMS Access

Compression for Dialogue: Controlling Dynamic RangeContent · 45 min

LMS Access

De-essing and Noise GatingContent · 45 min

LMS Access

Module 4

Module 4: Limiting, Mastering, and Delivery

Apply final limiting and loudness normalization to deliver files that meet broadcast, podcast, and streaming platform standards.

3 lessons

Loudness Standards: LUFS, True Peak, and Platform RequirementsContent · 45 min

LMS Access

Limiting and Final Loudness NormalizationContent · 45 min

LMS Access

Export Formats, Quality Control, and Client DeliveryContent · 45 min

LMS Access

Built for Application

A complete learning path, not a one-off inspiration hit.

This program is designed around progression: focused lessons, structured modules, applied resources, assessments, and a course rhythm that turns information into usable capability.

audio editingnoise reductionEQcompressionmasteringLUFSpodcast productionpost-production