WO2002093577A2

WO2002093577A2 - Digital recording and/or playback system

Info

Publication number: WO2002093577A2
Application number: PCT/EP2002/005292
Authority: WO
Inventors: Rolf Schiller
Original assignee: Interessengemeinschaft für Rundfunkschutzrechte GmbH Schutzrechtsverwertung & Co. KG
Priority date: 2001-05-14
Filing date: 2002-05-14
Publication date: 2002-11-21
Also published as: WO2002093577A3; DE20217751U1

Abstract

The invention relates to a device or a method, wherein audio signal recordings from a mobile or easy-to-handle data carrier for playback devices such as CD, DVD, LVD players or from an electronic buffer storage are available partially or totally unmastered and said signals can be played back with a playback device in a separately adjusted manner. The invention further relates to music data carriers for end users, wherein individual voices are recorded in a multichannel process and optionally time value data is recorded, which may also have their own coding standard. According to the invention, said media are provided with sound signal multitrack recordings enabling individually adjustable playback (for example volume, timbre) of individual or several sound sources or groups and the playback devices are equipped in a corresponding manner. In another embodiment, at least one of the playback parameters such as speed, volume, etc. can be real-time modified by detecting the conducting movements of a listener, analyzing said movements and feeding them back to the playback for the purpose of controlling or regulating playback. In this regard, the playback pitch is not modified to the greatest possible extent by means of modern data compressing and decompressing methods such as the MP3 method with the purpose of enabling an individually influenced music playback method.

Description

Digital recording and / or playback system

State of the art and task:

Today's mobile data media, which are used for music storage and playback, whereby image storage can also be associated with it (e.g. DVD or CD disks or electronic buffers etc.), offer the end user a "mastered" playback option mixed in the studio, in particular The enormous capacity of such modern sound carriers is not used for interpretive playback or for hearing that can be adjusted to the individual voices of an orchestra or a group (instruments, vocals),

It is also known to record music at different speeds on sound carriers or to play them back at different speeds without - in contrast e.g. to a turntable or tape recorder whose pitch is changed by varying the drive speed of the player. The known MP3 method is particularly suitable for this, see also EP 1 155 S70 B1 for karaoke purposes. The music and compressed or imported into a buffer and play it at the desired speed depending on the fixed setting. The MP3 method is particularly suitable for the transmission of sounds or music on the Internet. So far, however, there has only been a possibility to enable the reproduction of individual voices or in the sense of a conductor, e.g. according to speed and volume, to be changed interpretively during playback. Especially with classical music, however, many people feel the need to listen to individual voices or groups of voices, or even to act integratively as a conductor when playing sound carriers. However, you only conduct for your own pleasure, without really being able to influence the music. A similar, very widespread musical pleasure is the so-called karaoke, in which the listener himself takes over the part of the singer that is omitted in a piece of music and thus gives the music individual expression. EP 0529834 B1 (with German patent DE69225653T2) specifies a method for this in order to let the singer find himself in sync again in the course of the music. For this purpose, passages of the music are buffered and repeated. However, it is not possible to influence the recorded music further according to interpreting parameters such as tempos etc. The state of the art for the conducting process is specified on the one hand by a game console, which is marketed in Japan under the name "Maestromusik II" by Global A Entertainment (see Internet www.gae-co.jp/game>) Preset pieces of music on a Playstation, which can be varied according to the overall volume and speed by means of a baton connected to the computer with the appropriate active equipment. The "Haus der Musik in Vienna" (www.haus-der-musi k-wien . at) several pieces of music by the Vienna Philharmonic are recorded on a computer, which can be conducted in various ways. For example, it is not possible to hide or highlight individual voices / instruments or groups of them, for example for practice purposes. Furthermore, the individually reproduced pieces of music should not be in one device firmly recorded, but via mobile data or sound carriers (e.g. discs such as CD, DVD, tapes or portable electronic Buffer) can be available, making a variety of easily tradable sound sources individually audible or manipulable.

Today only 5 to 6 six channels can be used with DVD systems. As is well known, they only serve for Raiimakustik, but ultimately not for the separate reproduction of individual sound sources Object and advantages of the invention;

The object of the present invention is to remedy the lack of audio source-specific or instruments (gruρpeh) individually or of interpretive reproduction from commercially available sound carriers and thus to provide the listener with an individual music experience. This can be of great importance for private experience, but also for professional purposes of musicians.

It should now be possible to listen to music (especially classical) from commercially available carrier materials (CD's, DVD's etc.) by setting a device individually according to sound sources, i.e. e.g. To weaken brass and to emphasize a singing voice etc. With this the enormous storage capacities of such recordings are used again. With today's systems like Dolby 5.1 or DTS, THX this is not realized. In a variant, it is also possible to arrange the music playback in tempo and / or one-line volume from audio sources or groups according to your own conduct.

The proposal of the patent creates a new market - for CD-ROM or DVD (etc.) as well as for their players, as well as for music recorders and recording devices. So the potential is enormous. The market for well-rehearsed (classical music gives a very interesting outlook, especially since such new recordings cannot be copied with today's means,

Solution:

A system of mobile, commercially available data carriers with individually (or in groups) recorded audio sources is proposed, in which each individual audio source from the data carrier is fed to a mastering unit which supplies an arbitrarily selectable single or mixed output signal to a multichannel playback unit, thereby individual or to be able to play voices individually selected by the listener. A basic idea of the patent application is therefore to create an audio system that records one or more audio sources separately from a mobile, commercially available digital carrier medium and for its own master or for a separate reproduction by a data readout unit, optionally with a mixing unit for the signals of the individual audio tracks or codings can be reproduced individually - for the end user. This can also be important with regard to new applications for the "Blue Semiconductor Laser System" (EU project) currently under development, which will bring a storage volume of 15 gigabits on a DVD disc Suggestion for a special and intelligent practical application that goes beyond the usual greater use of music for more music. Advantageously, the proposed system contains information on the automatic or manual basic setting of the individual voices, which correspond to professional mastering, or a tactile addition to normal playback. For individual listening to the Tracks are advantageously set using a remote control, in order to make the setting comfortable after selecting the soundtrack and / or its volume. In a known manner, the soundtrack setting can be reproduced on a display.

In an extension of the proposal, it is also possible for the listener to interpretively influence the reproduction by means of his own conducting. The invention therefore also includes the idea of influencing the playback of portable data carriers continuously and in real time, preferably by movement as with a conductor. The music piece can preferably be varied in speed, but also, for example, according to volume. Depending on the record, it is also It is advantageous to individually emphasize individual tracks of the recording, for example for voices or individual instruments, in particular according to volume, to push them into the background or to influence them in a similar way - as is also done by a true conductor.

This influencing of the sound reproduction can preferably take place via a system which consists of a device for detecting a movement of the act, preferably a directing movement, an evaluation device and an actuating and reproducing device. In order to give the conductor or musician further possibilities, including musical training, sound or image carriers can also be provided which, in the inventive sense, have a multi-channel recording or multi-channel coding for the reproduction of individual vowel or instrumental voices. These are then more nuanced than today's (ready) mastered sound recordings, which are usually only separate tracks for stereo (right / left) and possibly a surround effect (bottom / top, back / front). In addition to means such as motor-driven disks or tapes, electronic buffers (e.g. Pendrive from Fujitsu / Siemens) can also be used. In this variant, the consumer can become creative himself, especially since the playback speed of sound carriers without changing the pitch e.g. can be varied between 25 and 200% using MP3. This allows a large scope for ongoing, individual interpretations while the piece of music is being played. Such a method - referred to the well-known karaoke - as "dirioke" can therefore become very popular. In a further expanded stage, it is also suitable to serve as a simulation facility for the training of musicians and conductors.

It is also envisaged for the recording of own music performances (e.g., for choirs or orchestras) recording devices for the end user (such as MD players, CD, DVD players etc. with burners, audio recording devices with intermediate storage) - with more than the currently usual To produce two-channel audio inputs and audio tracks in order to separately capture individual sound sources or voices in this sense and, for example to be able to play one of several audio sources according to volume or timbre. It is then also possible to burn such recordings themselves with DVD burners onto DVD discs and, in the sense of the invention, to manage them integrally or individually in the playback if the DVD burners have the audio signals in a corresponding number (preferably three and more) audio inputs detected and / or recording tracks for corresponding separate audio signals. A corresponding DVD self-recording is of course also possible with such burners without a video signal. It is advantageous if subsequent clock information can be stored in a known manner in the recording. The same applies to audio-recording video devices.

The multiple audio channels required for the invention can be stored on the data carriers in a known manner as multiple parallel tracks or as coded data segments. The signals from individual audio sources can also e.g. be readable by coding from a mastered overall recording. Both the burners and the playback devices can easily accomplish the task of providing a large number of audio channels for simultaneous playback. In the case of electronic buffers, coding of the data segments for correct further processing of the audio signals can also be added.

The data to be read out from the carrier medium are forwarded in a known manner to a buffer for decoding and further processing. To ensure the largest possible capacity for the signals with carrier media such as DVD or CD-ROM to maintain and to keep the proportion of manipulation signals (such as merg bits, channel bits) low, it is advantageous if the read-out device has a rapidly clocked and / or large buffer memory in order to avoid the playback being torn off. Under certain circumstances, a longer, new sector length can be defined for the proposal (today 12 lines of 172 bytes each with DVD and EFMPIus modulation).

For recording. Playback or playback devices are also proposed an adjustability or programmability of the coding recognition in order to make it versatile in use for carrier media different standards. The device can be changed over automatically by means of a detection signal on the data carrier or manually according to instructions.

Examples of solutions:

F1G, laund lb schematically show the relationship between sound recording and playback, with Fig. La being the usual home system today. The audio signals (11) are fed to a mastering unit (12), mixed there and transferred for two stereo tracks by means of a burner (13) or CD press (13) to a CD (14), from which the channels via the playback unit (15) the loudspeakers are routed, which can be divided into subwoofers (16a), rear (16b) and front loudspeakers (16c), the signals for the subwoofer are filtered out of the recording by frequency filters and fed to the loudspeaker. For some systems (15), a time delay and volume control can be set for the front and rear speakers.

FIG. lb shows the process of separate music recording and playback for the new home system: The audio signals (11) are either not or partially or completely supplied for playback of the master unit (12), mastered there, but the individual signals are more or less individually received as desired stay. As mentioned, the mastering unit can also be completely dispensed with. Then the signals are stored on the burner / press (13) on the CD (14) so that they remain available individually (or in previously determined groups) by means of parallel tracks and / or coding and via the playback system (15), i.e. the playback unit, the speakers (16a), (16b), (16c) are supplied individually or mixed. The (individual) signal strength can be regulated in the playback system (1) individually or in groups in tone strength, if necessary in a known manner also according to timbre etc.

Figure 2 shows an example of a functional diagram of a dynamic manipulation system ("Dirioke") proposed as a variant. Here, item 1 is the system for sound reproduction, here an MP3 spicler, possibly a CD player, DVD or LVD player, CD player. V (video compact disc) player etc. (item 1.2 is the turntable for a music disc, a music record or a tape etc.) 1.3 is the motor of the playback system, the speed of which can be regulated. Item 2 is the system for amplifying and processing the music signals, for example, by compression, for example using the MP3 method, provided the system or machine for sound reproduction (item 1) does not yet have this. Sound processing can also be carried out in a conventional computer.

Pos. 3 contains circuits for processing the signals for the subsequent playback device (Pos. 4), for example using loudspeakers or headphones. The active listener and "conductor" (item 5) is equipped with a baton 5.1. His conducting movements (item 5. V baton above, item 5.1 ^" baton below) are recorded according to deflection and frequency by means of a device for recording the movement (item 6), preferably optically. The use of a can easily by a Recognition device (6) for signaling means to be detected, such as a baton (5.1) - in particular in the case of optical detection systems with a special color - facilitates the subsequent detection of the conductor by the detection device (6). The signals recorded in this way are then evaluated in the signal evaluation or processing system (7), for example by means of fuzzy logic, and in the subsequent control system (8), via the feedback (9), change the reproduction by adjusting the motor (1.3) or the system for processing the music signals (item 2) in such a way that as far as possible no remarkable fluctuation in the pitch occurs. The (return) line, feedback or control (9) can take place in a known manner by wire or wirelessly, for example by means of infrared transmitters and receivers or via electromagnetic waves, in order to make the effort for the construction and operation of the system simple. Infrared transmission has the advantage of not disturbing other electronic elements and is also better biocompatible. The time stretching or compression is preferably carried out using an MP3 method, especially since these devices are already cheaply available on the market as mass-produced goods.

The amplitude of the conducting movement in the system is also advantageously recorded and evaluated in order to regulate the volume. As is well known, a conductor makes large swings for the hands and small swings for piano parts for notes to be played (loudly). In addition, it is also possible to acquire further signals in order to carry out further regulations. For example, soundtrack recordings for sounds, for vocals or instrument or choir voices (orchestral voices) for basses, for "left" and "right" in stereos, etc. can be influenced by other acquisition or evaluation parameters in the reproduction, for example by the acquisition of the position the hands (or one hand) at a distance from the conductor's body or by sound signals (shouting "loud" or "string piano") etc.

If optical detection systems are used to detect the conductor movements, it is preferable to use very inexpensive digital web cameras, which are manufactured in large series. Digital cameras have the advantage of safe and simple, undisturbed data processing and transmission. It is of course also possible to use completely different detection systems, e.g. induction systems.Here, the detection device (6) for the conductor movement consists, for example, of at least one plate, bar or the like to be attached to the conductor with induction receivers (e.g. in a vertical arrangement for detecting the Speed and volume according to frequency and amplitude and also in a horizontal arrangement to the volume). Such a device can make the entire process cheaper, but it creates an alienation effect compared to an orchestral conductor, especially since the conductor movements are then less free and in the area of the induction recorders.

When playing audio and image information, e.g. an LVD or DVD player, the speed of the image information is of course also controlled or regulated by the system in synchronism with the music variation.

The stored music data can be offered to a computer in digital form, for example as a Fourier analysis evaluation of the vibrations. The decoding can also be carried out using computing methods (software programs) which are either stored in the playback device or - depending on technical progress - also made available for the playback device together with the music via the mobile data carriers. To the computing power required for the interpretation calculation and In order to keep the hardware costs low, it is sufficient if the signals to be evaluated are recorded and calculated approximately at intervals of 1/2 to 1/20 seconds. This results in a sufficiently fast response of the music playback in the lower area, corresponding approximately to the "control loop" between a natural conductor and an orchestra, with the short value even the possibility of self-monitoring for the conductor for precision, ie for unintended fluctuations in the conductor frequency, if the deviations from a predetermined or determined frequency or temporary frequency (for example in a piece of the bar '"Largo", "Adagio" to "Prestissimo") are displayed. In the case of optical evaluation systems, it is further advantageous to present the object to be detected (for example a hand or a baton) to the image acquisition in such a way that it stands out well from the surroundings. A bright canvas with a dark baton or a glowing baton without a special background etc. can serve as a defined background.

It is also possible to further develop musically in this variant of the invention. For this purpose, as mentioned, in contrast to today's recordings for the end user, the sound recording is also recorded differentially (i.e. using the multi-channel method) in vowel or instrument voices (voices of the singers, instrument voices such as flutes, strings, Homer etc.). Each channel can now e.g. a special or joint command of the conductor can be assigned via the computer. Of course, such a recording can also be heard individually without a conduction, for example emphasizing a vowel voice (and hiding others) for practice purposes. Capacity for this is with digital sound carriers, especially with DVD Discs DVD disk). If there is no command, e.g. the use of the voice is refrained from, or if the command is too late, the result is a delayed playback. With special characters (e.g. the usual tapping of the conductor with the staff against a music stand (or another signal), the playback is interrupted and in differentiated places (significantly more than is common with CD recordings today, e.g. by timing information such as in a score), and generally the start or end of music playback or individual voices by the conductor's command is advantageous.

It is also possible e.g. Using a random generator to incorrectly mix in a voice, especially according to the random principle, which the conductor has to hear and which is then given a sign of his error if there is insufficient intervention in the further process. Such a process is also very effective with a special recording the disk, e.g. of a corresponding instrumentalist or singer etc., whereupon an image of a 'repentant' musician (or a group) appears or a signal is given when the error is recognized. In order to accomplish this, a disk-shaped, quickly rinsable data carrier or a electronic data carrier preferred, such a process takes too long with tapes and messes up the entire process.

The techniques described here are only examples. The invention includes all technical designs of the idea of unmastered or partially mastered data carriers for end users. a system for their separate playback options, as well as the individual timely modulation of a sound reproduction from digital sound carriers such as CD, DVD, mini disc, video tape etc., which can also be part of an overall recording of light signals from film / video D VD etc. and acoustic signals.

Claims

claims:

1) Digital sound and / or image recording and or playback system with a digital data carrier and a playback unit, the data carrier over several

Has information channels or sections that can be evaluated by the unit, characterized in that individual audio sources are recorded on or in the data carrier, which individually, i.e. mastered, captured or individually readable from a mastered version and that each such audio source is fed to a mastering unit, which supplies an arbitrarily selectable single or mixed output signal to a multi-channel playback unit.

2) Method for controlling or regulating the playback or recording of music from digital and / or analog sound carriers such as CD, mini disc, DVD, LVD, record, etc. by means of a system for sound reproduction, in particular according to claim 1, characterized in that conductor movements (5.1, 5.T, 5.1 ^" ) at least according to frequency and / or amplitude, that the signals thus obtained are evaluated in a signal evaluation or processing system (7) according to at least one of the detected parameters and via a control or Control device (8) act on the system for sound reproduction (1, 2).

3) Method according to claim 1 or 2, characterized in that the reproduction of the acoustic signals in at least one of the parameters such as speed, volume, spatial arrangement when recording the sound, orchestral voice etc changes almost in real time without the sound reproduction from the system for sound reproduction (1) is significantly influenced in height,

4) Method according to claim 1 or 2, characterized in that a compression method such as MP3 method is used for compressing or stretching the sound reproduction.

5) Method according to claim 2, characterized in that the conductor movements (5.1. 5.1 ', 5, 1' ^X ) are detected optically.

6) Method according to at least one of the preceding claims, characterized in that conductor movements (5.1, 5.T, 5.1 ^" ) are detected inductively or electromagnetically.

7) Method according to at least one of the preceding claims, characterized in that a digital camera is used for the optical detection of conductor movements.

8) Method according to at least one of the preceding claims, characterized in that the changes in the conductors are detected and evaluated in their changes by a fuzzy logic system.

9) Method according to at least one of the preceding claims, characterized in that the feedback or control of the signals from the detection of the conductor movement wirelessly, preferably by infrared radiation, on the drive of the sound carrier or the amplification and processing system (2). 10) Method according to at least one of the preceding claims, characterized in that the feedback or control of the signals from the detection of the conducting movement takes place wirelessly, preferably by electromagnetic waves.

1 1) Method according to at least one of the preceding claims, characterized in that in addition to the reproduction of the Toniπfσrmation also the .Image information is changed synchronously in its sequence.

12) Method according to at least one of the preceding claims, characterized in that the signal detection for variation of the reproduction is preferably carried out at a time interval of! / 2 to 1/20 seconds, ϊ 3) Method according to at least one of the preceding claims, characterized, that deviations from a specified or normal conducting or clock frequency are displayed.

14) Do ach at least one of the present claims, characterized in that wrong tones, especially randomly, are mixed into the reproduction.

15) Method according to claim 13, characterized in that an error is displayed when a recorded error is not recognized by the conductor.

16) Method according to claim 2, characterized in that the start or the end of the music playback or individual voices is effected by a signal from the conductor.

17) Mobile data carriers for playing music on digital sound or image and sound carriers for the end user, in particular CD or DVD recordings or electronic buffers, characterized in that the sound recording individual voices such as flutes, strings, singers (soprano, alto, Tenor, bass) etc., which can be accessed individually or together, in particular by the method according to claim 1 or 2, or whose individual audio source or voice groups individually, for example according to volume, are adjustable, and the single source or group can also be read from a coded master recording.

18) Mobile data carrier according to claim 17, characterized in that it has a sector length which is greater than 12 lines of 172 bytes.

19) Data carrier in particular according to claim 17, characterized in that it contains the computer program (software) required for playback by the playback device for reading out the data by the read-out or playback device.

20) Mobile data carrier according to claim 17, characterized in that it contains, in addition to the separate audio track recordings, one for a mastered recording.

21) Data carrier according to claim 17, characterized in that the sound recording contains signals which, for example, correspond to a measure of time in a score, which serve the narrow, targeted access of a music recording by the method according to claim 1 or 2. 22) Data carrier according to claim 17, characterized in that it contains additional signals or image recordings, which are shown by Dirigatkommando or omitted Dirigatko mando.

23) Recording device for reproducing sound or audio signals, characterized in that it detects the audio signals separately via at least three audio inputs or records or encodes them separately in at least three audio tracks.

24) Recording device according to claim 23, characterized in that clock information can subsequently be played in audio recordings.

25) playback or playback device according to Anspmch 1 or 2, characterized in that it has means. play a plurality of individual sound tracks and play them back individually, partially or completely, whereby these may also be adjustable with regard to volume or timbre and / or advantageously the setting of the sound track selection and / or volume is carried out via a remote control and wherein the setting can advantageously be read on a display is.

26) Playback or playback device according to claim 1 or 2, characterized in that a laser, in particular a blue laser, is used for importing the music data into the playback device.

27) Playback or playback device preferably according to claim J. or 2, characterized in that the detection of the coding method for different data carrier codes is automatically or manually switchable or is not permanently programmed into the device, i.e. through a software program, preferably via DVD or CD-ROM. can be loaded for the respective data carrier.