What is De-esser?
A De-esser is an audio tool used to reduce sibilance—the harsh 'S', 'T', and 'Ch' sounds that can be piercing to the ear in vocal recordings.
Why De-esser Matters for Podcasters
Sibilance refers to the high-frequency hissing sounds created by the human voice, particularly on consonants like S, T, and Z. Depending on the microphone and the speaker's unique voice, these sounds can become harsh and painful for listeners, especially those wearing earbuds. A De-esser is a specific type of compressor that targets only those high frequencies (usually between 5kHz and 8kHz). When the De-esser detects a sharp 'S' sound, it quickly lowers the volume of just that frequency range, smoothing out the speech without making the rest of the voice sound muffled. It is a critical tool for polishing a professional voiceover.
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ID3 Tags
ID3 tags are metadata embedded directly into MP3 audio files that store information like the episode title, artist name, album name, and cover art. They help podcast players display the correct information about your episodes.
Metadata
Metadata is descriptive information about your podcast episode that helps platforms, players, and search engines understand what your content is about. It includes titles, descriptions, tags, and embedded file information.
Background Noise / Noise Floor
Background noise (also called noise floor) is the unwanted ambient sound present in your recording, such as air conditioning hum, computer fan noise, or room echo. It can distract listeners and make your podcast sound unprofessional.
Transcription
Transcription is the process of converting spoken audio into written text. For podcasters, transcriptions make content accessible, improve SEO, and enable repurposing into blog posts or social media content.