Editing Print-through (section)

==Audibility==
The audibility of print noise caused by contact printing depends on a number of factors:
# the amount of print due to conditions of time and storage; 
# the thickness of the base film that acts as magnetic barrier (thin C-90 cassette tapes are more susceptible than studio mastering tapes that use a base film four times thicker);
# the stability of the magnetic particle used in the tape coating;
# the speed of the tape (the wavelengths of the prints shift so that higher speeds move printed signal closer to the range where the ear is more sensitive); the dynamics of the musical program (very quiet passages adjacent to sudden loud signals can expose the print signal transferred from the loud signal); and the wind of the tape (A-winds for cassettes with the magnetic layer facing outward have stronger print signals after a loud signal--"post-print"—than B-winds used in modern open-reel recorders that have stronger "pre-print" signals preceding a loud passage. [[echo]].<ref>Audio Engineering Society. Technical Bulletin A011194.</ref>

Tape speed is a factor because of the shift in wavelengths. For example, the strongest print signal on a C-60 cassette running at {{convert|1.875|in/s|cm/s}} is about 426&nbsp;Hz (605&nbsp;Hz for a C-90), while an open-reel tape recorded at {{convert|7.5|in/s|cm/s}} would have its strongest signal at 630&nbsp;Hz if the tape were a professional tape with a {{convert|1.5|mil|μm}} base film or 852&nbsp;Hz if the tape were a consumer version with a base film of {{convert|1.0|mil|μm}} thickness.