Includes specialized signal processing for recovering speech or images masked by distortion or background sounds.
Audio Enhancement Techniques:
For audio recordings, a variety of filters can be applied to enhance the material, bringing out specific aspects or events contained in the recording.
Frequency Equalization – Highly precise equalizers can be used to boost or cut specific bands of frequencies. To help make speech more intelligible, the frequency band containing the most speech content, 200Hz-5000Hz, can be amplified or isolated. If amplification is applied to a frequency range, other information residing in this frequency range will be boosted as well. If noise resides in this same range, this noise will also be increased, limiting the ability to clarify voices. Loud background noises may be analyzed by a spectrum analyzer and the corresponding frequencies reduced so that these noises are less noticeable.
Compression – Faint sounds in the recording can be boosted by compression or leveling the signal so that dynamic range of the material is reduced, making soft sounds more apparent.
Is a generalized term for the process of removing imperfections (such as hiss, impulse noise, crackle, wow and flutter, background noise, and mains hum) from sound recordings.
Audio Restoration can be performed directly on the recording medium (for example, washing a gramophone record with a cleansing solution), or on a digital representation of the recording using a computer (such as an AIFF or WAV file).
Modern audio restoration techniques are usually performed by digitizing an audio source from analog media, such as lacquer recordings, optical sources and magnetic tape. Once in the digital realm, recordings can be restored and cleaned up using dedicated, standalone digital processing units such as declickers, decracklers, dehissers and dialogue noise suppressors, or using digital audio workstations (DAWs). DAWs can perform various automated techniques to remove anomalies using algorithms to accomplish broadband denoising, declicking and decrackling, as well as removing buzzes and hums.
We use DAWs to manually remove “pops and ticks” from recordings, and the latest spectrographic ‘retouching’ techniques allow for the suppression or removal of discrete unwanted sounds. DAWs are capable of removing the smallest of anomalies, often without leaving artifacts and other evidence of their removal. Although fully automated solutions exist, audio restoration is sometimes a time consuming process that requires skilled audio engineers with specific experience in music and film recording techniques.
We provide Voice Over production & editing services for:
Businesses, Online Radio, Motivational Speakers, Audio Books, Churches, Demo Reels, Commercials, DJ Drops, Podcasts.
- Removing mouth clicks, pops, sibilance & page-turns
- Eliminating hiss, hum & electronic noise
- File separation, file transfer & file naming
- Dialogue editing & selecting the best takes
- Matching recordings from different days
Sound design is the process of specifying, acquiring, manipulating or generating audio elements. It is employed in a variety of disciplines including filmmaking, television production, theater, sound recording and reproduction, live performance, sound art, post-production, and video game software development.