Method and device for locating a sound event on a magnetic tape
First Claim
1. A method for coordination of a location signal to a sound event stored on a magnetic tape in a magnetic tape device, particularly for ascertaining the precise location of the beginning and/or end of the sound event on the tape with respect to a reference point on the tape device, comprising the steps ofstarting the playback of the tape which contains the sound event from a point before the sound event,upon hearing the sound event activating a counter to set it to count condition zero and via the counter initiating a detectable location signal automatically when the counter is at the count condition zero and simultaneously causing the counter to count forward with counts of the counter being dependent on the length of tape being transported by the tape device,subsequently reversing the magnetic tape to travel back at least to the sound event and causing the counter to count backwards dependent on the transported length of the tape in the reverse direction,repeating playback of the tape together with operation of the counter to count forward, causing the location signal to occur automatically when the counter reaches the count condition zero and the sound event to occur when the sound event plays on the tape device,perceiving and estimating the time relationship between the played back sound event and the occurring location signal,changing a count condition of the counter based on the perceived and estimated time relationship between the sound event and the location signal so that a subsequent occurrence of the location signal is shifted vis-a-vis the played back sound event during a subsequently repeated playback step,repeating the perception and estimation, changing, reversing and repeating playback steps so as to progressively shift the then occurring location signal vis-a-vis the then played back sound event until the location signal and the played back sound event are perceived as substantially concurrent by the user and are thereby correlated, andpositioning the sound event on the magnetic tape with respect to a reference point on the tape device using the correlated location signal.
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Accused Products
Abstract
A method and device for coordination of a signal to a sound event stored on a magnetic tape or the like, particularly for signalizing and locating the sound event. A tape drive device is operatively coupled with a counter. The sound playback is started, and when the user recognizes the sound event, the counter, in functional relationship with the tape transport, is activated. After a certain time interval or upon the occurrence of a counter value, the magnetic tape is shifted back and a repeated playback begins. Upon attaining the count condition ("O") the counter turns on a signal device providing a marking location signal. Upon a non-correspondence in time of the location signal with the sound event, the count condition of the counter, and thus the location signal, can be charged relative to the sound event, and the location signal is used for positioning the sound event with respect to a reference point on the device.
10 Citations
26 Claims
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1. A method for coordination of a location signal to a sound event stored on a magnetic tape in a magnetic tape device, particularly for ascertaining the precise location of the beginning and/or end of the sound event on the tape with respect to a reference point on the tape device, comprising the steps of
starting the playback of the tape which contains the sound event from a point before the sound event, upon hearing the sound event activating a counter to set it to count condition zero and via the counter initiating a detectable location signal automatically when the counter is at the count condition zero and simultaneously causing the counter to count forward with counts of the counter being dependent on the length of tape being transported by the tape device, subsequently reversing the magnetic tape to travel back at least to the sound event and causing the counter to count backwards dependent on the transported length of the tape in the reverse direction, repeating playback of the tape together with operation of the counter to count forward, causing the location signal to occur automatically when the counter reaches the count condition zero and the sound event to occur when the sound event plays on the tape device, perceiving and estimating the time relationship between the played back sound event and the occurring location signal, changing a count condition of the counter based on the perceived and estimated time relationship between the sound event and the location signal so that a subsequent occurrence of the location signal is shifted vis-a-vis the played back sound event during a subsequently repeated playback step, repeating the perception and estimation, changing, reversing and repeating playback steps so as to progressively shift the then occurring location signal vis-a-vis the then played back sound event until the location signal and the played back sound event are perceived as substantially concurrent by the user and are thereby correlated, and positioning the sound event on the magnetic tape with respect to a reference point on the tape device using the correlated location signal.
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11. A device for carrying out a method for coordination of a location signal to a sound event stored on a magnetic tape in a magnetic tape device, particularly for ascertaining the precise location of the beginning and/or end of the sound event on the tape with respect to a reference point on the tape device, comprising the steps of starting the playback of the tape which contains the sound even from a point before the sound event, upon hearing the sound event activating a counter to set it to count condition zero and via the counter initiating a detectable location signal automatically when the counter is at the count condition zero and simultaneously causing the counter to count forward with counts of the counter being dependent on the length of the tape being transported by the tape device, subsequently reversing the magnetic tape to travel back at least to the sound event and causing the counter to count backwards dependent on the transported length of the tape in the reverse direction, repeating playback of the tape together with operation of the counter to count forward, causing the location signal to occur automatically when the counter reaches the count condition zero and the sound event to occur when the sound event plays on the tape device, perceiving and estimating the time relationship between the played back sound event and the occurring location signal, changing a count condition of the counter based on the perceived and estimated time relationship between the sound event and the location signal so that a subsequent occurrence of the location signal is shifted vis-a-vis the played back sound event during a subsequently repeated playback step, repeating the perception and estimation, changing, reversing and repeating playback steps so as to progressively shift the then occurring location signal vis-a-vis the then played back sound event until the location signal and the played back sound event are perceived as substantially concurrent by the user and are thereby correlated, and positioning the sound event on the magnetic tape with respect to a reference point on the tape device using the correlated location signal, with at least one drive device for the transport of the magnetic tape in forward running and reverse running directions, and a control device for automatic playback--repeat operation for at least a partial range of the magnetic tape, is coordinated to the drive device for the magnetic tape and with a playback amplifier for the sound event, the amplifier being connected to a sound head, comprising;
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a memory having a storage content correlated to amount of tape transported, a switching-on means for bringing the storage content of said memory in relationship with the sound event with respect to the amount of tape transported from a time when the switching-on means is actuated, signal means for providing the location signal, means for transforming a storage content into a control signal for activation of said signal means, and changing means for varying of the storage content of the memory by the user with respect to the tape position of the sound event, said changing means is operatively connected with said memory. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 23, 24, 25, 26)
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Specification