THE FEUTEX TOOLKIT
Audio Tools
Explore audio tasks including Uncompressed Audio Size, Video Bitrate Budget, Frame Count to Timecode.
Estimate observed frequency for motion directly along the source-observer line.
Measure integrated LUFS, true peak and loudness range from an uploaded audio or video file.
Reduce steady background noise with a frequency-domain audio filter.
Process your own local media with audio volume booster and download the resulting file.
Process your local media with audio and video silence detector, then save the output.
Process your local media with audio to aac converter, then save the output.
Process your local media with audio to flac converter, then save the output.
Process your local media with audio to mp3 converter, then save the output.
Process your local media with audio to ogg vorbis converter, then save the output.
Process your own local media with audio to wav converter and download the resulting file.
Estimate audible beating and cents detuning between two nearby sine tones.
Permanently render supplied short SRT captions into an uploaded video.
Add two uncorrelated sound levels using their intensity contributions.
Convert an integer frame count into a non-drop-frame timecode.
Estimate level change as listening distance changes from a reference point.
Estimate resonator frequency from neck cross-section, effective neck length and cavity volume.
Estimate the ideal full-scale sine signal-to-quantization-noise ratio for a bit depth.
Process your own local media with mp4 to mp3 converter and download the resulting file.
Compare the fundamental and first overtone of ideal open and one-end-closed pipes.
Process your local media with podcast loudness normalizer, then save the output.
Create Markdown show notes with an episode summary, supplied chapter markers and resource links.
Calculate a selected three-dimensional axial, tangential or oblique room mode.
Process your own local media with remove audio from video and download the resulting file.
Reverse the frame order of a WAV file while keeping its channels aligned.
Shift SRT subtitle timestamps forward or backward by a fixed number of milliseconds.
Estimate decay time and the additional absorption needed to reach a target RT60.
Align arrivals from two speaker distances using a supplied sound speed.
Calculate steady-state output above a hard-knee compressor threshold.
Average the channels of a multichannel WAV recording into one mono channel.
Remove selected literal filler words from an existing English transcript, with a removal count.
Remove below-threshold samples from the edges of WAV audio while retaining internal pauses.
Predict the first cancellation and spacing caused by an equal-amplitude delayed copy.
Estimate PCM audio storage from sample rate, bit depth, channels and duration.
Center-crop an uploaded video into a 720 × 1280 vertical frame for short-form editing.
Process your local media with video audio sync adjuster, then save the output.
Estimate the video bitrate available for a target file size after allowing for audio.
Crop an uploaded video using explicit pixel dimensions and offsets.
Join compatible WAV recordings in a chosen order without uploading them.
Cut a WAV recording to a start/end time and export a sample-aligned audio file.
Convert PCM or float WAV audio to 16-, 24- or 32-bit integer PCM output.
Extract a numbered audio channel from a WAV recording into a mono WAV file.
Apply linear fades at the beginning and end of a WAV recording.
Read sample rate, bit depth, channels, duration, peak level, RMS level and DC offset from an actual WAV file.
Adjust WAV amplitude to a target peak in dBFS, preserving relative channel levels.
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