Abstract: A system providing for personalized real-time instructions for physical fitness training. A data storage medium stores data comprising a set of instructions for physical fitness training on one or more tracks. A playback device reads the instructions stored on the data storage medium and converts them to an audio signal. An audio speaker connected to the playback device provides the audio signal, comprising the set of instructions, to a user located proximate the speaker.

Abstract: A talking electronic learning aid is operative for requesting one or more responses from the operator, receiving responses from the operator and then automatically adjusting the level of difficulty of subsequent requests dependent upon the prior responses of the operator. The device consists of an electronic memory for storing a plurality of data sets, a speech synthesizer, a keyboard input device, and a micro-controller for controlling operation of the device. Each of the data sets includes speech data from which requests for operator response are derived, and further includes corresponding control data related to the appropriateness of operator responses to the requests. Each of the data sets preferably reflects a different level of intellectual difficulty.

Abstract: A stick-on audio microchip recorder/playback product for message conveyance-, audio mail-, product promotion and self-reminder purposes. The product enables a user to record a personal (or business-oriented) message or self-reminder, and non-permanently fasten the recorder upon surfaces such as household doors, walls, mirrors; compatible (carry-able) objects such as appointment books or notebooks; or upon interiors of mailing-, packaging- or shipping vessels, in desired temporary locations where the intended recipient would be most likely to encounter it. The recorder is easily removable by the end-user, and reusable. A microchip recording/playback circuit, microphone, speaker, battery and record/playback controls, are secured in a housing. Preferably, the housing has on its underside an attached stick-on fastener, including a stack of "pressure sensitive" peel-off adhesive stickers, each having on their undersurface a medium adhesion substance.

Abstract: In a data processing system with built in audio capability, audio setup instructions are provided. Delivery of the instructions begins after the system is plugged in. Once a video connection has been established, the audio instructions may be supplemented with directly relevant visual information. The object of each instruction may be tested for successful completion. Additional instructions and information may be provided, or optional instructions and information skipped, depending on the requirements of the individual setup.

Abstract: A medicine container providing audible dosage instructions in a voice recognizable to the user, so that a user, even with a sight or like disability, can rely on voice recognition as providing verification of the accuracy and particular appropriateness of the dosage instructions to the user of the medicine container.

Abstract: An audio system with a language exercise function, the system including a cassette tape deck, comprising a keyboard, an output display, a microcomputer to which the keyboard and the output display are connected, a voice synthesizer memory unit connected to the microcomputer, the memory unit including a plurality of random access memories and a voice synthesizer circuit, and an audio level sensor connected to the cassette tape deck which is connected to the microcomputer so that automatic repeated playback and pronunciation functions of the cassette tape deck are executed.

Abstract: A storybook pillow where a pillow that is designed to rest the head of a human includes a radio transmitter. Upon the pillow being used by applying pressure to the pillow by the users head, the radio transmitter is activated emitting a signal. A radio receiver, separate from the pillow but located in close proximity thereto picks up the signal and activates a sound playback device which reproduces a recorded sound. The radio receiver is to be mounted in conjunction with the representation of a book.

Abstract: A talking electronic learning aid is operative for requesting one or more responses from the operator, receiving responses from the operator, and then automatically adjusting the level of difficulty of subsequent requests dependent upon the prior responses of the operator. The device consists of an electronic memory for storing a plurality of data sets, a speech synthesizer, a keyboard input device, and a micro-controller for controlling operation of the device. Each of the data sets includes speech data from which requests for operator response are derived, and further includes corresponding control data related to the appropriateness of operator responses to the requests. Each of the data sets preferably reflects a different level of intellectual difficulty. In operation, the micro-controller selects a first data set, and further randomly accesses a portion of the speech data of the selected data set from which a random request for an operator response is derived.

Abstract: A toy playback system adapted to access information stored on a printed circuit board, integrated circuit or other storage area, disposed on a toy storage medium designed to simulate a standard information storage medium. The storage medium comprises a plurality of memory locations each of which stores a sequence of analog or digital signals representative of a different block of stored information. Upon insertion into the toy playback system, based upon user input, the integrated circuit comes into selective contact with a contact plate, which activates the contacted memory location or locations to provide the selected information as sound, image, or video via a speaker, display screen, or combination thereof. The playback system may additionally include preloaded storage locations and available storage space for user recording or storing of information.

Abstract: A remote controller is disclosed having recording and playback functions which enables repetitive operation in applications such as language study. The remote controller is used in combination with conventional audio recording and playback devices and imposes only a small economic burden on the user. The remote controller includes the following capabilities: recording external audio signals, playback of the signals, storing recordings in memory for future playback, and controlling the operation of an audio recording and playback device.

Abstract: To provide effective, self-learning and fun way to educate children, this electronic audio learning apparatus consists of the sensing section program which are stored in the ROM-pack. The D/A converting section and the piano IC generate audible analog voice output from the ROM-stored digital data and the musical keyboard. These two types of signals are sent to the book/keyboard selection switch to provide users with variety of sound service. The CPU calculates the address of the ROM-pack data/program from the input data detected by the sensing section and the sound effect section. The digital data which is fetched from the ROM-pack is converted to audible voice as it passes through the D/A converting section, LPF, the book/keyboard selection switch, the voice amplifier and the speakers, sequentially.

Abstract: By providing integrated circuit constructed for recording, retaining, and delivering an audible message upon demand and securely retaining the circuit means in a housing, a unique, multi-purpose, audible message delivery system is attained for use either independently or in cooperative relationship with a plurality of alternate products. In the preferred embodiment, the integrated circuit is constructed to provide ease of message re-recording upon demand. In this way, any desired message can be substituted for an existing message whenever desired. As a result, repeated use of the audible message delivery system is realized, with the system being used independently or in association with other products, such as picture flames, medicine packages, folders, notebooks, etc. In this way, specific messages can be easily transmitted between individuals in a manner previously unattainable.

Abstract: Apparatus for use in conjunction with a book containing intermixed text and symbols, includes a randomly accessible sound storage-and-playback memory having addressable storage locations, and a plurality of actuatable selectors, each selector being associated with a respective symbol corresponding to a symbol in the book. A switch selects between a recording mode of operation and a playback mode of operation. A microprocessor controls recording at respective addressable storage locations in the memory respective sounds produced by the user, the recording means being active during the selected recording mode of operation. The microprocessor controls the playback from the memory of a respective recorded sound, the playback means being actuated by the microprocessor upon actuation of a respective one of the selectors during the selected playback mode of operation.

Abstract: An educational training device in disclosed which includes a replica of a telephone including a telephone headset having an operational speaker and a telephone keypad having a plurality of numeric key buttons. A machine is associated with a telephone operatively connected to the speaker and a machine readable medium which embodies an 911 emergency program is provided. The 911 program contains a series of questions relating to a predetermined 911 emergency situation to be asked to a child or other person being trained by the device. A voice converter or synthesizer is operatively connected to the machine and receiver for converting the machine readable program into a voice output through the handset speaker so that the voice of a 911 operator is realistically reproduced to the child listening on the handset.

Abstract: To educate children how to use the emergency 911 telephone number, a talking doll displays the twelve keys of a conventional telephone instrument. Within the chest of the doll or mounted externally is a tape player having a pre-recorded tape of the words likely to be used by an emergency dispatcher at a "911 number". These include reassuring instructions, inquiries as to the name and address of the child and the nature of the emergency. Hence the user pushes the sequence of buttons "9", "1" and "1". This activates playing the recorded tape. At the end of the tape message, the tape automatically rewinds. A telephone instrument may be suspended on the doll in such manner that a switch is closed when the instrument is lifted from the hook before depressing the "9", "1", "1" buttons.

Abstract: The invention provides an apparatus which comprises a recording of a musical composition having two or more parts. One of the two or more parts is at a volume audibly louder than an audible volume of the other parts when the recording of the musical composition is reproduced. This part at a louder volume is the part to be learned efficiently and accurately. The musical composition may comprise instrumental and vocal parts in any combination, and the part to be learned (and therefore at a louder volume) can be an instrumental or vocal part. Methods of making the apparatus and methods of using the apparatus are also provided.

Abstract: Apparatus for use in conjunction with a book containing intermixed text and symbols, includes a randomly accessible sound storage-and-playback memory having addressable storage locations, and a plurality of actuatable selectors, each selector being associated with a respective symbol corresponding to a symbol in the book. A switch selects between a recording mode of operation and a playback mode of operation. A microprocessor controls recording at respective addressable storage locations in the memory respective sounds produced by the user, the recorder being active during the selected recording mode of operation. The microprocessor controls the playback from the memory of a respective recorded sound, the playback means being actuated by the microprocessor upon actuation of a respective one of the selectors during the selected playback mode of operation.

Abstract: A method of making an instructional recording for an individual for teaching the meaning and other aspects of an operatic piece or foreign-language song with musical and lyrical elements is disclosed. The method comprises obtaining a recording of a foreign-language song comprising music and lyrics, with said lyrics consisting of foreign-language words, that is to say, said words are in a language foreign to the individual. Playing and studying said recording determines the gaps between the foreign words in said lyrics. After obtaining a translation of said foreign language words, said translation comprises a plurality of possible word groups. Comparing the duration of said possible word groups of said translation to the duration of said gaps determines actual word groupings for recording and also determines those points corresponding to respective assigned gaps on the recording where the actual groupings will be recorded. A translation recording is then made.

Abstract: The game includes a device for randomly selecting a sequence of musical notes for game playing purposes. Another device enables a player to preview a recognition sequence of a portion of the sequence of musical notes prior to game play. A switch device actuated by the player causes a signal to be generated indicative that the player identified the recognition sequence of notes embedded within sequence of musical notes during game play.

Abstract: By providing circuit means constructed for recording, retaining, and delivering an audible message upon demand and securely retaining the circuit means in a housing, a unique, multi-purpose, audible message delivery system is attained for use either independently or in cooperative relationship with a plurality of alternate products. In the preferred embodiment, the circuit means is constructed to provide ease of message re-recording upon demand. In this way, any desired message can be substituted for an existing message whenever desired. As a result, repeated use of the audible message delivery system is realized, with the system being used independently or in association with other products, such as picture frames, medicine packages, folders, notebooks, etc. In this way, specific messages can be easily transmitted between individuals in a manner previously unattainable.

Abstract: An electronic apparatus breaks a stream of recorded sound into discrete segments. The apparatus randomizes the order of the sound segments and will allow the sound segments to be re-ordered to their original order or to some desired order. The apparatus allows re-ordering of the sub-segments of a sound segment to create additional sounds (i.e. playing a sound segment backwards). The apparatus includes a control that will record and playback individual or groups of sound segments. A memory or skills game can be played in which the object is to re-assemble the sound segments to some determined order in a limited or unlimited amount of time. Levels of difficulty can be changed to make the game more challenging. The apparatus allows a player to create silly and entertaining stories by arranging the sound segments in some order and then playing some or all of them back to the player.

Abstract: The present invention is a real-time interactive conversational apparatus which operates by playing to a child a prerecorded conversation stored on a multi-track media such as magnetic tape. The system conversations are programmed according to a decision-tree logic which allows complex conversations to be developed, branching between the various tracks of the media being accomplished without the aid of a microprocessor or any coding in the conversation source signal. The information is stored on each track in a plurality of reproducible information segments, which contain interrogatory messages and associated multiple choice responses, responsive messages, informational messages, and combinations thereof. The responsive messages contained on the tracks are related in real-time and content to particular interrogatory messages, and correspond with multiple choice selectable responses.

Abstract: A game assembly utilizing sound identification as a method of determining the length of a player's move, wherein the player forfeits his turn if he fails to recognize the sound. A first player uses a keyboard to identify a randomly-generated sound, while a second player attempts to anticipate the random sound to be generated by moving panels over certain keys of the keyboard Additionally, the game assembly keyboard includes a processor which randomly appends the generated sound with a bonus sound, the player receiving an additional turn upon successful identification of the generated sound during such a bonus condition.

Abstract: A baby entertainment and learning apparatus for highchairs including a removable tray having in its top surface a series of pressure sensitive microswitches. A series of interchangeable tray top panels, each presenting a series of depressible picture blocks, may be selectively placed on the highchair tray for overlaying and activating the microswitches of the tray. Each tray top panel has a panel identity device. Circuitry components are mounted to the underside of the tray and include: an integrated circuit microchip within which is stored voice, sound and musical information; a low voltage battery power source; an audio speaker; and panel switches corresponding in number to the series of tray top panels and each positioned to interact with a single panel identity device.

Abstract: A subliminal recording includes both subliminal message and mask signals applied to both tracks of a two track recording medium. The subliminal message signals are identical in content, and are recorded in an out-of-phase relationship. The mask signals are recorded in phase. The resulting recording may be utilized in the conventional manner for subliminal recordings. By combining the composite signals in an inverted relationship, the mask signals cancel while the subliminal message signals are additive, thus allowing the presence of the subliminal message signal to be confirmed on the recording.

Abstract: A method and apparatus for introducing gradual changes to an audio signal so that the changes are subliminal. The changes can involve tempo and volume, for example, and can take the form of a gentle gradient having ever increasing/decreasing ramp-like changes over a sufficient duration, or a more complex program involving several gentle gradients. In the preferred embodiment, an enhanced audio play-back device such as a portable audio cassette recorder can be programmed to subliminally alter the characteristics of a standard pre-recorded tape containing music, for example. As a motivational tool during walking, jogging or other repetitive exercise, the tempo is gradually increased over a period of time to encourage a corresponding gradual (and subliminal) increase in physical exertion by a user whose rate of movement is proportional to the tempo of the music.

Abstract: The present invention is a real-time interactive conversational toy which operates by playing to a child a prerecorded conversation stored on a multi-track media such as magnetic tape. The system conversations are programmed according to a decision-tree logic which allows complex conversations to be developed, branching between the various tracks of the media being accomplished without the aid of a microprocessor or any coding in the conversation source signal. The information is stored on each track in a plurality of reproducible information segments, which contain interrogatory messages and associated multiple choice responses, responsive messages, informational messages, and combinations thereof. The responsive messages contained on the tracks are related in real-time and content to particular interrogatory messages, and correspond with multiple choice selectable responses.

Abstract: A learning apparatus in which a memory contains a first plurality of data units and a second plurality of data units each of which is related to a unit of the first program. Switches are provided for switching between the first and second pluralities of data units and for switching between the units within the selected plurality. Reading means are provided for reading a designated unit of data from the memory, based on a signal from the operation switch, thus making it possible to access and reproduce any desired program or articles related to the program. In another embodiment, a control memory holds the addresses of the data units, and the reading means obtains the address of the selected data unit from the control memory and reads the data at that address. The apparatus is uniquely suited for audio teaching material, such as languages, but may be used with any information which may be organized into logically related units.

Abstract: An apparatus and method of playing an audio quiz game wherein a player attempts to answer a question after listening to a corresponding audio clip provided on a compact disc. Each track of the compact disc contains one or more sound clips separated by audio cues. The questions and answers relating to specific tracks are provided in a book, or playing cards, or in computer memory, and can be randomly accessed.

Abstract: A method and system for enhancing reading skills whereby readers can improve both reading speed and comprehension. This novel teaching method and system associatively combines input to visual, tactile, auditory senses. The reader is trained to conceptualize the meaning of words directly from symbols rather than from symbols and related sounds by causing the eyes to scan text more rapidly than both symbols and related sounds can be assimilated. The eyes are prompted to follow a rapidly moving finger induced to rhythmically move back-and-forth across the text at rapidly driven rates by an auditory beat. Different auditory inputs are provided to each ear, such that each hemisphere of the brain predominately receives signals which are related to its primary function. Rhythmic beats to induce higher reading rates are addressed to the left hemisphere of the brain which governs spatial relations, time, rhythm, and reading the written word.

Abstract: In an apparatus for voice training, on several points of a student's body measuring devices are provided, which are connected to optical display devices. At each of these measuring devices, a pressure sensor amplifier is connected with an analog multiplexer, and a sound-pressure measuring device is directly connected to the respective display device.

Abstract: A method and system for enhancing reading skills whereby readers can improve both reading speed and comprehension. This novel teaching method and system associatively combines input to visual, tactile, and auditory senses. The reader is trained to conceptualize the meaning of words directly from symbols rather than from symbols and related sounds by causing the eyes to scan text more rapidly than both symbols and related sounds can be assimilated. The eyes are prompted to follow a rapidly moving finger induced to rhythmically move back-and-forth across the text at rapidly driven rates by an auditory beat. Different auditory inputs are provided to each ear, such that each hemisphere of the brain predominately receives signals which are related to its primary function. Rhythmic beats to induce higher reading rates are addressed to the left hemisphere of the brain which governs spatial relations, time, rhythm, and reading the written word.

Abstract: Method and apparatus are provided to present voices or music to a fetus in a manner in which the sounds more accurately resemble the same sounds as the baby will hear after birth. An apparatus is disclosed for directing sound to a fetus in a mother's womb, which includes a contouring filter, having as an input an electronic signal representing such sound, for modifying the magnitude of the signal at any frequency generally inversely proportional to the attenuation of that frequency by the body of the mother over at least a portion of the audible range of frequencies; an amplification circuit to amplify the output signal of the contouring filter; and a speaker having as an input the output of the amplification circuit.

Abstract: A game apparatus consists essentially of a game board, cards, set of playing pieces for each player, a compact disc with multiple tracks set up in such a way that the playing pieces, or tokens, for each player will move around the board surface which may comprise a single or dual segmented path. Part or all of the segments contain one of the numbers in a two number selection code on the compact disc. Cards which are provided as part of the game apparatus, will contain a second number of the two number selection code so that as playing the game, once both numbers are determined, the player will know which track to punch in on the compact disc control. The instructions on the compact disc track will determine further moves and actions and enhances the game play.

Abstract: An interactive and programmable tone generator with scenarios is disclosed nd described as a training device. Sounds are recorded as they are heard in their actual environment. The recording then can be combined with a coded track that triggers a graphics demonstration previously prepared from notations taken during the recordings that describe the actual environment that corresponds to the respective sound. Also, selections can be taken from the recording that present a best example of a sound to be learned, looped for repetition, and then rerecorded digitally onto micro-floppy diskettes. When played-back the diskettes provide challenging interactive training for the novice and expert alike in a variety of available modes using both computer generated graphics and sounds reconverted from digital storage.

Abstract: An interactive, articulated talking toy talks and moves certain of its body parts (eyes, mouth, head and arms) under microprocessor control on the basis of the program material selected from a tape storage device incorporated in the body of the toy. The material selected is determined by a human's response to questions asked by the toy. The material stored on tape contains both audio and data. The processor chooses a particular one of a possible three audio tracks stored on tape on the basis of the specific response or nonresponse made by a human. The data track provides data to the processor which causes it to control the toy's body parts in concert with the audio program being reproduced. The toy has limited word recognition capabilities. The result is the appearance of interaction between the toy and a human by the toy's movement of its body parts and its speech seeming to respond to the human's input.

Abstract: Apparatus for carrying out an amusement, educational or similar function accompanied by audible sounds relating to an article, comprises a static memory unit adapted to be located at a fixed location with respect to the article and including a read-only memory having digitally stored therein a recording of particular audible sounds relating to the article, and a portable sound-producing unit to be carried by a user for converting a digital recording stored in the read-only memory of the memory unit to audible sounds. The sound-producing unit stored the digital data from the memory unit at a rate faster than the normal speech rate, and plays it back at the normal speech rate. Examples of applications of the apparatus include museum and exhibition displays and geographical directories.

Abstract: The present invention relates to a new programming and feedback system for learning science as a language. The zero information based system and kit of the present invention allow verbalization of science subjects in a substantially less period of time than possible by conventional techniques.

Abstract: A student interactive teaching system allows the student to learn at a level of skill appropriate to the student's learning achievements and learning abilities. The student progresses at a rate selected by the student. Ample opportunity is provided for the student to support and reinforce the learning process through student commanded repetition and review. The lessons are personalized by the recording and storage of student commentary. Video masking of the visual presentation allows the student to challenge his/her understanding of the subject matter when visual cues are inhibited. So too, the inhibition of audible cues tests the students abilities to learn and repeat verbal skills, such as are required in the theatrical arts.

Abstract: A method and device for transmitting sonic vibrations, such as music, to a fetus includes an abdominal belt to be worn by the mother. The belt is equipped with either a compact cordless cassette player or a radio receiver or simply a speaker or speakers powered from a remote player and power pack. The belt is provided with pockets for detachably receiving the equipment so that it can be removed for laundry or dry cleaning of the belt.

Abstract: An auditory subliminal programming system includes a subliminal message encoder that generates fixed frequency security tones and combines them with a subliminal message signal to produce an encoded subliminal message signal which is recorded on audio tape or the like. A corresponding subliminal decoder/mixer is connected as part of a user's conventional stereo system and receives as inputs an audio program selected by the user and the encoded subliminal message. The decoder/mixer filters the security tones, if present, from the subliminal message and combines the message signals with selected low frequency signals associated with enhanced relaxation and concentration to produce a composite auditory subliminal signal. The decoder/mixer combines the composite subliminal signal with the selected audio program signals to form composite signals only if it detects the presence of the security tones in the subliminal message signal.

Abstract: The invention relates to an apparatus for learning by the super-learning method, in which the education matter is recorded on a sound tape under adaptation to a preset cadence and expounded to the pupil by playing back the sound tape by means of a sound tape apparatus via an electro-acoustic transducer, for example a pair of headphones. To this end, a piece of music equally recorded on the sound track is played back, at least whilst the educational matter is being listened to for the second time. The educational matter and the music are recorded on and played back from different tracks of a sound tape by means of a multitrack sound tape device, an acoustic speech output and at least one music output of the sound tape apparatus being liable to be mixed in each case.

Abstract: An apparatus for extracting, storing and repetitively replaying a broadband atasample is fabricated from proven electronic components to assure long term reliability and reproducibility. A broadband acoustic signal is digitized and stored in a RAM until it is loaded with the desired signal. An adjustable clock controls the rate at which the stored signal is loaded and repetitively displayed so that its spectrum and characteristics can be fully analyzed. Appropriate filters are provided on the input and output sides to block incoming signals outside of the range of interest and those signal components attributed to the variable clock. Selection of particular portions of the stored desired signal may be addressed for detailed analysis on a repetitive basis if needed.

Abstract: A product and method for the presentation of prerecorded audio-visual sets of related words or phrases for their learned association is disclosed wherein the learner is presented simultaneous and sequential audio material while viewing spatially compatible visual representations. The first auditory presentation directs a known stimulus to the learner's left ear and an unknown response to the right ear. The stimulus is at a lower intensity than the response and the onset of the stimulus is slightly before or simultaneous with the onset of the response. The next auditory presentation directs the response term to both ears. The auditory presentations are concurrent with exposure to visual representations of the stimulus and response terms. This optimal combination saves time, improves performance, and enhances the efficiency of rehearsal for learning the association of the verbal stimulus-response materials.

Abstract: An educational device is adapted to receive a programmed tape cassette having voice signals and data signals stored thereon. The programmed tape cassette is organized so that the voice signals include questions as well as other entertaining subject matter, while the data signals include answers to the corresponding questions. The voice signals and data signals are read from the tape cassette and a playback circuit provides a voice playback signal to a speaker, while providing a data playback signal to a microcomputer. The microcomputer is also connected to a keyboard and a display, as well as being connected to drive the tape cassette. In operation, the tape cassette is driven and an audio question is produced by the speaker. At the same time, the correct answer data is stored by the microcomputer. After the audio question has been generated, the tape cassette is stopped and a user is allowed to input answer data via the keyboard.

Abstract: Learning additional languages and similar subject matter wherein repetition and comparison of spoken phrases is of value is enhanced by this electronic circuitry auxiliary to the conventional magnetic tape recorder. The circuitry according to the invention comprises an addressable electronic store, control circuitry, therefor arranged for storing a plurality of messages or texts in separate locations, and converting circuitry for converting analog signals emanating from the recorder or from a microphone used by the learner into digital signals for storage and for converting the digital signals into analog signals for reviewing aurally. Four modes of operation are available. Full electronic control and interlock are provided with easy manipulation of four switches and one gain control element.

Abstract: An audio adapter for an electric or electronic sewing machine is disclosed. The adapter may have a holder sized to accept a typical DC powered microcassette tape player, an AC-DC power converter and leads for attachment to the on-off switch of the sewing machine and to the microcassette player.

Abstract: A prerecorded magnetic audio tape, and method of instruction utilizing the tape, are disclosed wherein at least two series of associated recorded phrases are recorded on separate tape tracks of a multi-track tape. The phrases in each series are separated by intermediate sections and the phrases of each series are staggered in the longitudinal direction of tape advance such that the phrases of one series alternate with the phrases of the other series, without overlap. At least a third track is recorded with continuous background sounds, the subject matter of which is substantitively related to the subject matter of the recorded phrases so as to enhance listener interest and learning effectiveness.

Abstract: A miniature tape recorder with a two-channel magnetic head and a selecting member for selecting one of combinations of channels for recording and reproducing without releasing a record-actuating member and a reproduction-actuating member, which tape recorder can be used to form an inexpensive study machine by connecting it to an outside study unit for using a two-channel study tape, wherein study step cannot proceed unless a student thoroughly understands the answer to the question of one study step.

Abstract: A learning device for people with damage to the cortical areas of the brain and minimal brain disfunction related to learning. It comprises an elongated housing one end of which is provided with a writing instrument and the other end of which is provided with an electromagnetic transducer which, when connected to a sound recording source, such as a cassette player, causes the elongated housing to vibrate mechanically in accordance with the frequency of sound signals. The device, when held against the skull while vibrating, transmits sound to both hemispheres of the brain so as to accomplish auditory perceptual training.