# Audio True Peak Meter Analyze audio to find true peak level > Canonical page: https://elysiatools.com/en/tools/audio-true-peak-meter - **Category:** Media - **Keywords:** audio, true peak, loudness, meter, analysis ## Overview Uses FFmpeg loudnorm analysis to report true peak and headroom for clipping safety checks. ## Inputs - **Audio File** (file): Select an audio file - **True Peak Ceiling (dBTP)** (number): -1 ## When to use - When preparing audio for broadcast or streaming to comply with loudness standards like EBU R128. - During music mastering to check for inter-sample peaks that could cause distortion on playback. - When verifying audio files meet platform-specific true peak limits before distribution. ## How it works - Upload an audio file in a supported format such as MP3, WAV, or FLAC. - Optionally set a true peak ceiling in dBTP to define a safety threshold. - The tool runs FFmpeg loudnorm analysis to compute the true peak level and available headroom. - Results are provided in JSON format, detailing the true peak value and clipping margin. ## Use cases - Audio mastering engineers checking tracks for true peak compliance before digital release. - Podcast producers ensuring episodes meet loudness guidelines for platforms like Spotify or Apple Podcasts. - Broadcast technicians verifying audio files adhere to true peak limits for transmission standards. ## Frequently asked questions ### What is true peak? True peak is the maximum reconstructed audio level in dBTP, accounting for inter-sample peaks that can cause clipping during digital-to-analog conversion. ### How accurate is the true peak measurement? The tool uses FFmpeg's loudnorm filter, which provides reliable true peak analysis based on standard audio processing algorithms. ### What audio formats are supported? Common formats like MP3, WAV, FLAC, and others compatible with FFmpeg are supported for analysis. ### Can I process multiple files simultaneously? No, the tool analyzes one audio file at a time. For batch processing, run separate analyses for each file. ### What does the True Peak Ceiling option do? The ceilingDb option sets a target true peak level in dBTP. The analysis reports headroom below this ceiling to help avoid clipping. ## Related tools - [Audio Dynamic Range Meter](https://elysiatools.com/en/tools/audio-dynamic-range-meter): Compute dynamic range via crest factor (peak minus RMS) - [Audio LUFS Meter](https://elysiatools.com/en/tools/audio-lufs-meter): Measure integrated, short-term, and momentary LUFS - [Audio Peak Detector](https://elysiatools.com/en/tools/audio-peak-detector): Find the peak volume level in an audio file - [Audio Platform Delivery Checker](https://elysiatools.com/en/tools/audio-platform-delivery-checker): Check podcast or spoken-audio files against platform delivery profiles, including codec, loudness, metadata, chapters, cover art, and decodability. - [Batch Audio Normalize](https://elysiatools.com/en/tools/audio-batch-normalize): Normalize multiple audio files to a target peak level with consistent volume across the batch - [Audio Loudness LUFS Normalizer](https://elysiatools.com/en/tools/audio-loudness-lufs-normalizer): Measure integrated LUFS, true peak, and LRA, then normalize audio to Spotify, Apple Music, broadcast, or custom targets - [Audio Normalize (Peak)](https://elysiatools.com/en/tools/audio-normalize): Normalize audio to a target peak level (e.g., -0.1 dB) using two-pass max-volume detect - [Vocal / Instrumental Balance](https://elysiatools.com/en/tools/audio-vocal-instrumental-balance): Measure and adjust vocal level relative to an instrumental bed, with a transparent loudness report. ## Samples - [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 - [Copyright-Free Raw PCM Audio Samples](https://elysiatools.com/en/samples/pcm-samples): Raw PCM s16le audio samples featuring nature ambience and relaxing music for waveform, playback, and conversion workflows ## Related content - [Audio Loudness, Dynamics, and Mastering Delivery Tools](https://elysiatools.com/en/hubs/audio-mastering-loudness-workflows): Measure LUFS and true peak, normalize loudness, shape dynamics, and prepare podcast, broadcast, or music files for cleaner audio delivery in one mastering-focused hub. - [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.