New Head Technology for Multichannel DASH Recording
A professional 48-channel digital audio recorder conforming to the DASH (Digital Audio Stationary Head) double density format is introduced. This recorder's high-track density has been made possible due to advances in thin film technology which realize a stable recording system with a narrow guard bandwidth of 16 µm, and in high packing density ferrite playback heads with a 200 µm track pitch and 125 µm track width, both covering 52 tracks in a 1/2-in width. The digital audio tracks of this 48-channel recorder are fully compatible with those of previously released DASH 1/2-in normal density 24-channel recorders. This paper describes the head technologies used in the DASH 1/2-in double density recording, the recording and playback circuits, and also the compatibility with 24-channel recorders.
Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members, $5 for AES members and is free for E-Library subscribers.