Audio Cassettes
One of the great success stories, the audio cassette became the medium of choice starting in the late 70s until the CD took over. Audio cassette's slow speed made for some terribly poor audio at first, until they reformulated the tapes and added Dolby noise reduction. Then they rivaled LP records, and were lots more versatile than 8 tracks. Besides commercial recordings and home-made "mix tapes," cassettes were used for audio archives for everything from sermons to legal proceedings, audio lessons to the precursors of podcasts, and soundtracks and control for countless slide shows in the days before PowerPoint and VHS.
- Standard Cassettes could be recorded in mono or stereo. To achieve hi-fi sound quality, some have different tape formulations such as Chromium Dioxide (Cr02) and Dolby noise reduction. "PortaStudio" recorders could record 4-track multitrack sync recording which musicians would use to produce demo tapes for their songs. Some machines recorded at higher speed to improve quality. Tapes were sold in lengths of 15, 30, 45, 60, 90 and 120 minutes, referring to recording time at standard speed when both sides were recorded. We can digitize from all forms of standard cassette tapes, including mixdown of multitrack music tapes.
- Micro and Mini Cassettes were primarily used for dictation devices as well as portable hand-held audio note takers. We can transfer from either Micro or Mini cassette. Note that audio quality from these smaller tapes is usually quite poor.