# Audio Noise Reducer Remove background noise from audio files using various noise reduction algorithms > Canonical page: https://elysiatools.com/en/tools/audio-noise-reducer - **Category:** Media - **Keywords:** audio, noise, reduction, denoise, clean, background, hiss, hum ## Overview The Audio Noise Reducer is a professional-grade utility designed to clean up your audio files by removing unwanted background noise, hiss, and hum using advanced filtering algorithms. ## Inputs - **Audio File** (file): Select an audio file... - **Noise Reduction Algorithm** (select) - **Noise Reduction Level (0.1-1.0)** (range): 0.1 = light reduction, 1.0 = maximum reduction. Higher values may remove more audio details. - **High-Pass Frequency (Hz)** (select) - **Low-Pass Frequency (Hz)** (select) - **Output Format** (select) ## When to use - Removing constant background hum or static from voice recordings. - Cleaning up low-frequency rumble or high-frequency interference in audio tracks. - Enhancing the clarity of speech in recordings made in noisy environments. ## How it works - Upload your audio file in a supported format like MP3, WAV, or FLAC. - Select a noise reduction algorithm such as FFT Denoiser or specific high/low-pass filters. - Adjust the reduction level and frequency thresholds to fine-tune the output. - Download your cleaned audio file in your preferred format. ## Use cases - Improving the quality of podcast recordings captured in non-studio environments. - Restoring old audio files that contain significant background hiss or static. - Cleaning up voice memos or interviews recorded with mobile devices. ## Frequently asked questions ### What audio formats are supported? The tool supports MP3, WAV, FLAC, AAC, OGG, and M4A formats. ### Which algorithm should I choose? The FFT Denoiser is recommended for most general noise reduction tasks. ### Can I remove high-frequency noise? Yes, you can use the Low-Pass Filter to reduce high-frequency hiss or interference. ### Will high reduction levels affect audio quality? Yes, higher noise reduction levels may remove some audio details, so it is best to adjust the slider incrementally. ### Is there a file size limit? Yes, the maximum file size for processing is 10 MB. ## Related tools - [FFmpeg Audio Noise Reduction](https://elysiatools.com/en/tools/ffmpeg-audio-noise-reduction): Professional audio noise reduction using FFmpeg advanced filters (highpass, afftdn, loudnorm) for optimal audio cleaning - [Audio Declicker](https://elysiatools.com/en/tools/audio-declick): Remove clicks and pops from audio files caused by vinyl records, digital errors, or other impulsive noise sources - [Audio Decrackler](https://elysiatools.com/en/tools/audio-decrackle): Remove crackles and subtle impulsive noise from audio files. Ideal for restoring old recordings, cassette tapes, and digitized vinyl with surface noise - [Audio Cutter](https://elysiatools.com/en/tools/audio-cutter): Cut and extract audio clips from audio files with precise time selection - [Batch Audio Converter](https://elysiatools.com/en/tools/audio-batch-converter): Convert multiple audio files between different formats like MP3, WAV, FLAC, AAC, OGG, Opus with quality settings and batch processing - [Audio Format Converter](https://elysiatools.com/en/tools/audio-converter): Convert audio files between different formats like MP3, WAV, FLAC, AAC, OGG with quality settings and volume adjustment - [Audio Declipper](https://elysiatools.com/en/tools/audio-declip): Repair clipped audio by reconstructing peaks that exceeded the maximum amplitude. Restore distorted audio from overdriven recordings or excessive gain - [Audio Splicer](https://elysiatools.com/en/tools/audio-splicer): Splice multiple audio files into one single audio file with customizable output format ## Samples - [Copyright-Free M4A Audio Samples](https://elysiatools.com/en/samples/m4a-samples): Apple iTunes compatible M4A audio samples with AAC encoding, optimized for quality and file size balance - [Copyright-Free FLAC Audio Samples](https://elysiatools.com/en/samples/flac-samples): Lossless FLAC audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music - [Copyright-Free MP3 Audio Samples](https://elysiatools.com/en/samples/mp3-samples): Collection of royalty-free audio samples for testing and development purposes including nature sounds, meditation music, and ambient audio - [Copyright-Free WAV Audio Samples](https://elysiatools.com/en/samples/wav-samples): Uncompressed PCM WAV audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music ## Related content - [Audio Restoration, Noise Repair, and Cleanup Tools](https://elysiatools.com/en/hubs/audio-restoration-repair-workflows): Repair clicks, hum, clipping, crackle, room noise, and spectral problems in one audio restoration hub for old recordings, spoken-word cleanup, and salvage workflows. - [Audio Encoding and Format Conversion Tools](https://elysiatools.com/en/hubs/audio-convert): Compare audio format conversion, bitrate changes, sample-rate conversion, codec swaps, and export tools in one hub for delivery and archive workflows. - [Audio Editing and Cleanup Tools](https://elysiatools.com/en/hubs/audio-utility): Compare audio trimming, silence removal, fades, mixing, and denoise tools in one hub for podcast, voiceover, and music cleanup workflows. - [Audio Preview, Tone, and Effect Generator Tools](https://elysiatools.com/en/hubs/audio-generate): Compare audio preview generation, silence creation, ringtone building, fingerprinting, loudness reports, and effect-style audio generators in one hub.