Remove Hiss from Audio
That constant high-frequency "sssss" from cheap mics, gain boosts and old cassette tapes is broadband hiss. This tool estimates the hiss floor and subtracts it, leaving a quieter, cleaner recording.
Yadda yake aiki
We take a short-time spectrum of the audio, estimate the noise floor from the quietest frames, and subtract it from every frame (spectral subtraction). The result is an audible drop in the constant hiss.
What it's good for
- Cassette and tape transfers
- Cheap or hot-gain microphones
- Old digitized recordings
- Hissy voice memos
Details
- Mai Gudanarwa
- DSP
- Formats
- MP3, WAV, M4A, FLAC, OGG, AAC
- Price
- Free to try
Tambayoyi da ake yi da yawa
Hishi shi ne wani irin zazzabi mai tsananin yawa ("s"); hum shi ne wani irin zaren da yake da tsananin kasa a 50/60 Hz daga wata matsala ta lantarki. Ka yi amfani da kayan aikin da ya hana hum don wannan zaren da ke da tsananin kasa.
An yi amfani da wannan zaɓi don cire ƙanƙanin haske daga cikin hoton. Ana amfani da ƙanƙanin haske a matsayin diff don kiyaye haske; zaka iya sake tafiyar da shi don tsaftacewa mafi girma idan aka bukata.
No — hiss removal is a fast signal-processing filter that runs almost instantly, even on long files.
Yana kiyasta tafarkin zafi daga firam masu kwanciyar hankali a cikin fayil din gaba ɗaya, don haka wani ɓangaren ɓoye mai dacewa yana taimakawa daidaituwa amma ba a buƙata sosai ba.
Yanzu. Spectral subtraction aiki a kan kiɗa, amma da ƙoƙarin da ya yi zai iya shigar da wani mai raɗaɗi ruwa artifact, don haka amfani da adadin da ya dace a kan tonal ko sustained kayan aiki.
Ba. Wannan kayan aiki na karɓar nau'ikan sauti kamar MP3, WAV da FLAC; cire sauti daga bidiyo a farko idan ana buƙata.
Yanzu. An yi aikin kowane wani sashe na kan bidiyo da kansa, don haka za'a iya ganin sautin a cikin hotunan stereo na gaba ɗaya, ba a gefe ɗaya kawai ba.