DE102019203533A1 - Method of reproducing audio content and audio reproduction system - Google Patents

Abstract

The invention relates to a method for reproducing audio content, in particular in a vehicle, with: e) reproducing audio content with an audio reproduction system (10), the audio content being obtained from a source (19) external to the system; f) determining whether a reproduction of the Audio content from a source (21) other than the system-external source, and if this is the case; g) analyzing the audio content received from the system-external source (19) to determine whether it is likely to be speech content, and if so the case is: h) recording of the audio content received and playback of the audio content received from the other source (21); and an audio playback system.

Description

The invention relates to a method for reproducing audio content, in particular in a vehicle, and to an audio reproduction system, in particular for a vehicle. The vehicle can generally be a land vehicle and in particular a motor vehicle such as a car or a truck.

It is known to use audio playback systems to play back audio content obtained from sources external to the system (i.e. from sources provided externally to the audio playback system). The source external to the system can generate and / or broadcast the audio content, for example by means of a radio link. A typical example of such an off-system source is a radio transmitter, and the audio reproduction system may have a radio receiver to receive and reproduce corresponding radio signals (i.e. radio broadcasts).

In particular in the context of vehicles (but not limited to this) it is also known that, in addition to audio content of this type, there may also be other sources that provide audio content that is also intended to be provided to a user of the audio reproduction system. This can e.g. be an acoustic navigation instruction (e.g. a turn command) or a telephone call. There is then audio content that is supposed to be reproduced at the same time, so that prioritization is made and the reproduction of one of the audio contents has to be interrupted at least temporarily.

From the driver's point of view, irritations can arise at the latest when the playback of the original audio content (e.g. a radio broadcast) is to be continued, since then the continued playback usually does not start at the interrupted time or starts again there, but instead a subsequent and especially current point in time. Audio content that is transmitted to the audio playback system between an interruption and resumption of playback can then be lost from the user's point of view.

She continues to teach US 2013/0308794 A1 the recording of a temporarily interrupted audio content and, as soon as the interruption has ended, the reproduction of the recorded information at an increased speed. This is intended to enable the period of interruption to be made up, so to speak, and playback to be synchronized with the ongoing receipt of audio content. However, the increased speed of audio playback in the meantime can be perceived as annoying from the user's point of view.

From the DE 199 25 581 A1 It is also known to coordinate audio content from different information sources in such a way that one of the information sources is prioritized with regard to reproduction. The current reproduction of the corresponding other information source can be interrupted and its information can be recorded for later reproduction when the prioritized information source is to be reproduced. In this case, it is also necessary that identifiers are also transmitted that mark audio content as, for example, traffic information. Such identifiers are not available in all regions and, moreover, only predetermined content, such as traffic news, can be marked with them. The range of applications of such known approaches is therefore limited.

It is an object of the present invention to improve the reproduction of audio content from various sources, in particular when one of the audio content is provided from a source external to the system, such as, for example, by a radio station.

This object is achieved by a method with the features of claim 1 and by an audio reproduction system with the features of claim 10. Advantageous further developments are given in the dependent claims. It goes without saying that all of the above features can also be provided in the present solution, unless otherwise stated or evident.

In general, the invention provides for the audio content received from a source external to the system to be analyzed to determine whether it is likely to be speaking content (e.g. a speech or a discussion) and, if this is the case, to record it, if another (prioritized ) Audio content from another source should be played back in the meantime. It can therefore be differentiated whether the content provided by the system-external source is a talking content or e.g. is a music or vocal content and is preferably only recorded if it is the content of speech.

This is based on the idea that a driver will be less irritated when continuing the audio playback with audio content received from the system-external source if a music or song content was previously interrupted than if a speech content was interrupted. in the In the latter case, the interruption can mean a critical loss of information from the driver's point of view and lead to irritation. The invention therefore makes it possible to determine that a speech is interrupted and after the recording it can then be played back in such a way that, from the driver's point of view, the speech is preferably continued essentially seamlessly and thus no loss of information occurs.

However, since only spoken content is preferably recorded and continued accordingly, the synchronization effort is reduced in comparison to cases in which all audio content is recorded without further differentiation in the event of any interruption and continued again later. Figuratively speaking, the invention therefore preferably only provides for recording and synchronization of the interrupted audio content when this is actually relevant from the driver's point of view or would otherwise lead to a significant loss of information.

The invention is mainly described herein with reference to vehicles, but is not limited thereto. If a driver is referred to herein, this is also to be understood as meaning a general user who is not a driver of a vehicle or who interacts with the subject matter of the invention outside and independently of a vehicle.

1. a) Wiedergabe eines Audioinhalts mit einem Audiowiedergabesystem, wobei der Audioinhalt von einer systemexternen Quelle erhalten wird (d.h. das Audiowiedergabesystem diesen enthält);
2. b) Ermitteln, ob eine Wiedergabe des Audioinhalts aus einer anderen als der systemexternen Quelle erfolgen soll, und wenn dies der Fall ist:
3. c) Analysieren des von der systemexternen Quelle erhaltenen Audioinhalts dahingehend, ob es sich hierbei voraussichtlich um einen Redeinhalt handelt, und wenn dies der Fall ist:
4. d) Aufzeichnen des erhaltenen Audioinhalts und Wiedergabe des von der anderen Quelle erhaltenen Audioinhalts.

In detail, a method for reproducing audio content is proposed, in particular in a vehicle, with:

1. a) playback of audio content with an audio playback system, the audio content being obtained from a source external to the system (ie the audio playback system contains this);
2. b) Determine whether the audio content should be played from a source other than the external source, and if so:
3. c) Analyzing the audio content received from the source external to the system to determine whether it is likely to be spoken content, and if this is the case:
4. d) recording the audio content received and playing back the audio content received from the other source.

The audio playback system can be an infotainment system. However, it can also be any system that e.g. has loudspeakers or can be connected to them in order to initiate or carry out an audio reproduction via this, wherein the loudspeakers can also be integrated in the headphones. The audio reproduction system can comprise a computer and / or a microprocessor in order to be able to provide or carry out the functions and steps described herein. This relates in particular to the aforementioned steps b) and / or c), which require a status detection and / or status assessment by the audio reproduction system, for which logical operations can be carried out by means of a corresponding computer. The audio reproduction system preferably also comprises a receiving device (e.g. a radio or Bluetooth receiver) in order to be able to receive audio content from the source external to the system.

The audio playback system can also comprise a storage device or be connectable to such a device in order to be able to record the audio content according to d). Points in time of recording, interruption and / or switching of the reproduction to other sources can also be determined by the computer of the audio reproduction system and preferably also stored.

The audio playback system is set up to receive audio content from various sources, but preferably to output only one of the audio content at a current point in time via an output device, such as the loudspeakers discussed above.

The sources can be one of the following: a smartphone that is connected to the audio playback system via a wired or wireless communication link (for example via a data or audio cable or via a wireless connection such as Bluetooth), a radio station that is set up to do this can be to transmit radio frequencies (for example in a VHF, FM or AM range), an Internet server that can be set up to communicate wirelessly with an Internet receiver of the audio playback system and to send audio content to be played back to this (e.g. an Internet radio) , a general data transmitter that can preferably send data wirelessly, especially audio content; a telephone device or, in general, a voice communication device which is set up to communicate with a corresponding device, but which is located remotely and in particular outside of any vehicle. Such a (telephone) device can be connected to the audio playback system, preferably via a wireless data and / or audio connection, in order to output the audio content via the audio playback system (for example via the loudspeakers of a vehicle); a navigation system that is set up to output navigation instructions acoustically via the audio playback system or the speakers connected to it.

All of the above examples can form system-external sources but also “other sources” in the sense of the claims.

In general, audio content can be continuously transmitted to the audio playback system from the system-external source, at least with sufficient connection quality, regardless of whether the audio playback system is in a state to play it back immediately or, in other words, to output it to a user. In other words, audio content can be continuously sent, streamed or generally output from the source external to the system. In particular, it can be transmitted via live generation, live transmission or live streaming of audio content, the term “live” denoting generation of the audio content immediately before it is transmitted or streamed. This concerns e.g. Ordinary radio stations whose audio content is continuously created or updated and output to receiving devices connected to them (e.g. the audio playback system). In such a case, an interruption would result in the audio content generated during the interruption period not being output if step d) according to the invention were not provided. Consequently, a determined speech content can in particular be live speech content (i.e. broadcast live and / or generated).

The audio content can be present or transmitted in any conventional format, for example in a data-based format (MP3, WAV, FMAC or the like). However, it can also be an analog audio signal, on the basis of which, in a known manner, e.g. Loudspeakers can be controlled.

The determination in step b) can be carried out by the audio playback system itself, for example based on whether audio content is being transmitted from one of the connected sources whose audio content, if any, is not currently being played back directly. Other signals can also be transmitted from a source that is not currently reproduced, for example activation and / or identification signals that signal a reproduction request.

The source other than the source external to the system is preferably a source located in the vehicle or integrated into the audio reproduction system. Examples of such a source are a navigation system or a telephone device of the type explained above.

It cannot be ruled out that the other source is also an external source. Their reproduction, however, cannot be prioritized over the system-external source from step a) or the system-external source from step a) can be used by a user specifically for permanent reproduction e.g. selected over several minutes. The other source from step b), on the other hand, can only be activated as required and in particular automatically, for example when a telephone call is received or a navigation instruction is to be output.

The analysis in step c) can take place using known speech evaluation algorithms. In particular, such an algorithm only needs to be set up to differentiate between speaking content and music and / or vocal content. Speaking content can generally be understood to mean audio content which is used primarily for the reproduction of speech or language information, with the possibility that background music may also be played. A music and / or song reproduction can be characterized in that the reproduction of music or at least musical accompaniment or background music is in the foreground. It can e.g. be about songs or concert recordings. An algorithm intended to differentiate between such contents can e.g. evaluate the audio content to determine whether it recognizes rhythm structures, harmonies, chords or other tone sequences. It is also possible to use music identification algorithms or music identification software applications available on the market to check the audio content to determine whether it can be assigned to a known piece of music. If this is not the case, it can be concluded that the content is likely to be spoken and the audio content can be classified accordingly. Such music identification services are available on the market and can be stored in the audio reproduction system in the form of software applications.

It is therefore only possible (indirectly) to estimate whether audio content is spoken content, and a clear spoken content recognition function is not absolutely necessary. This is expressed by the wording in the claims that the analysis determines “likely” speech content.

While the audio content received from the source external to the system is being recorded, the playback of this audio content can be interrupted and the playback of the audio content received from the other source can take place instead.

According to a further embodiment, if the audio content received from the system-external source is not speaking content, but for example music content and / or song content, none Recording of the audio content received from the source external to the system or at least no recording with subsequent playback of the audio content received. This is based on the idea that interruptions in music or song content without continued playback at the time of the interruption can be less critical from the point of view of a user or result in less loss of information than if a speech is interrupted. As a result, system requirements for the audio playback system with regard to synchronization functions to be provided can be reduced and, from the user's point of view, more intuitive playback can take place.

Furthermore, the recorded content, which is speaking content, can be played back after the playback of the audio content obtained from the other source has ended (that is, after step d) has been ended.

It can further be provided that when the playback of the audio content from the other source has ended, it is determined whether the audio content currently received from the source external to the system is spoken content. This can in turn be done by an analysis analogous to step c).

Furthermore, it can be provided that if it is a matter of a speech, it is recorded and the previously recorded speech is played back first or instead. This is intended to maintain a synchronization or a correct sequence when reproducing the content of the speech. The recorded speech that is linked to the time of the interruption or continues the playback of the content of the speech from the time of the interruption is therefore played back first, whereas the (new) content of the system-external source received in parallel is initially recorded. The recording can continue until the previously recorded speech has been played back in full. The newly recorded content can then be continued and, provided that the content from the system-external source continues to arrive at the same time, this incoming content can be recorded (in the sense of a temporary storage). This can be continued until all the spoken content received from the system-external source has been reproduced or, if this has been temporarily stored, has been read from the memory.

On the other hand, if it is not a matter of speech content that is currently being received from the system-external source, when the playback of the audio content from the other source has ended, the recorded speech content can be played back and, after this playback has ended, with a playback of a current one audio received from the off-system source. After such speech content has been reproduced in the desired sequence (e.g. by intermittent recording and / or reading out from a memory), audio content from the external source can be reproduced live or seamlessly, so to speak. As soon as this has been completed and / or if no further speech content is currently received, the audio content otherwise received (e.g. music content) can be played back immediately instead. In order to avoid irritation from the user's point of view, the current audio content can be updated by gradually increasing the volume over a period of e.g. a few seconds (e.g. one second to 5 seconds) instead of switching abruptly between the audio content. It can also be provided that after all recorded content has been played back, it is possible to determine that the audio content currently received is not spoken content. All of the above measures can then be taken.

A further development provides that a recorded content of speech is at least partially translated into text form and output with a text output system. The text output system can e.g. be a screen or generally a display device (for example the screen of an infotainment system of the vehicle and / or a head-up display). This output can take place instead of or in addition to an acoustic reproduction of the audio content. In particular, a corresponding output in text form can be requested by a user, e.g. by entering a corresponding command into an infotainment system or generally into the audio playback system. It is also possible to define conditions according to which the recorded content of speech (in addition to or as an alternative to an acoustic reproduction) is preferably automatically translated into text form and output accordingly. This can e.g. concern the exceeding of a time criterion, for example if the recording has lasted longer than a minute. One advantage of these variants is that the user has another option for reacting to the interruption of the content of the speech.

Another embodiment provides that speaking pauses are at least partially removed from a recorded content before it is played back. A suitable algorithm can therefore be used to examine whether there are pauses in speaking in a recorded content. These can be characterized in particular by the absence of an acoustic signal for a minimum period of time (ie silence). The corresponding passages can then be cut out, so that the recorded speech is shortened compared to the actually received speech. The consequence of this is that when the recorded content is played back, less time is required to output it and it is therefore possible to switch back to the currently received audio content from the external system source (ie for live transmission) in a shorter time.

According to a further aspect, a navigation instruction of a navigation system (of the vehicle or of an infotainment system in which the audio playback system is preferably also integrated) is adapted or omitted if it is determined in c) that the audio content received is spoken content.

Instead of interrupting a currently reproduced content of speech, navigation instructions can be dispensed with or these can be adapted in such a way that an interruption is as slight as possible. For example, navigation instructions can be shortened compared to a standard operating state in which there is no parallel output of a spoken content. In particular, introductory formulations or accompanying terms can be deleted and instead of detailed turning instructions, only one direction of the turn can be output (i.e. e.g. "left" or "right" instead of "turn left at the coming intersection"). Likewise, only lanes can be named, but not that and / or when to change to them (e.g. "left lane" instead of "move to the left lane at the earliest possible time"). Likewise, only street names can be given, but not what should happen when you reach this street (e.g. "main street" instead of "turn into main street at the next intersection").

Additionally or alternatively, it is possible to output the navigation instruction by means of a display device (i.e. graphically and / or by text), in which case an acoustic output can then be completely dispensed with. The display device can e.g. be a head-up display. As long as there is talk, the navigation instructions can only be displayed to the driver, but not output acoustically. This also has the advantage that interruptions and loss of information with regard to the spoken content can be reduced or, in other words, the spoken content can be output with priority over the navigation instructions.

The adaptation of the navigation instructions can also include that already graphically or visually displayed navigation instructions are enlarged when a spoken content is output at the same time, in particular to compensate for any waiver of acoustic navigation instructions in this operating state. In general, the navigation instructions can therefore be adapted in terms of their type, length, size, number, graphic design, presence and / or scope in relation to an operating state without received speech content.

Furthermore, the driver's line of sight, e.g. can be determined by a camera installed in the vehicle interior. If it is determined that this viewing direction corresponds to a view of a display device by means of which navigation instructions are output (e.g. in the form of graphic symbols), additional acoustic navigation instructions can only be output when reproducing speech content if it is determined that the driver has a predetermined one Duration this display device has not had an eye on, so is probably not in the picture about a current navigation instruction.

Possibilities can also be made available to the driver to interrupt the recording of a spoken content and / or to start the playback of the spoken content immediately, e.g. regardless of what audio content the audio playback system is currently receiving from associated sources. A change in playback to currently received audio content can also be specified manually (i.e. a change to a live broadcast, in particular from the system external source), for example after a long telephone call has ended and the user is not interested in the playback of the recorded content.

• - Eine Audioinhalt-Empfangseinheit (oder auch vorstehend erwähnte Empfangseinrichtung), um Audioinhalte von Quellen und insbesondere von wenigstens einer systemexternen Quelle zu erhalten. Hierbei kann es sich z.B. um einen Radioempfänger oder eine der vorstehenden anderweitigen Empfangseinrichtungen handeln.
• - Eine Wiedergabeeinheit, mittels der Audioinhalte z.B. über Lautsprecher oder anderweitige Wiedergabeeinrichtungen ausgegeben werden können. Hierbei kann es sich z.B. um einen Audioverstärker handeln.
• - Eine Analyseeinheit, um erhaltene Audioinhalte zum Identifizieren von Redeinhalten zu analysieren. Hierbei kann es sich um eine Softwarekomponente handeln und insbesondere um eine Softwarekomponente, die einen der vorstehend diskutierten Algorithmen umfasst. Es kann sich aber auch um einen Mikroprozessor handeln, der eine solche Softwarekomponente bzw. einen solchen Algorithmus ausführt.
• - Eine Aufzeichnungseinheit, um einen erhaltenen Audioinhalt (der ein Redeinhalt ist) aufzuzeichnen. Hierbei kann es sich um eine (z.B. elektronsiche) Speichereinrichtung handeln.

The invention also relates to an audio playback system, in particular for a vehicle (for example a motor vehicle and in particular a passenger car or a truck), the audio playback system being set up to carry out a method according to one of the preceding or following aspects. The audio playback system can have the following units, which can be provided individually or in any combination:

• An audio content receiving unit (or also receiving device mentioned above) to receive audio content from sources and in particular from at least one source external to the system. This can be, for example, a radio receiver or one of the above other receiving devices.
• - A playback unit by means of which audio content is output, for example via loudspeakers or other playback devices can. This can be an audio amplifier, for example.
• - An analysis unit to analyze received audio content to identify content of speech. This can be a software component and, in particular, a software component that includes one of the algorithms discussed above. However, it can also be a microprocessor that executes such a software component or such an algorithm.
• A recording unit for recording a received audio content (which is a speech content). This can be an (eg electronic) storage device.

As explained in the introduction, the audio reproduction system can also comprise a computer and / or a microprocessor. In general, the audio reproduction system may comprise any feature and any unit to provide all of the above and below effects, steps and operating states. In particular, the audio reproduction system can be set up to carry out a method in accordance with any of the above and below aspects.

• 1 zeigt eine schematische Ansicht eines Audiowiedergabesystems gemäß einem Ausführungsbeispiel der Erfindung, das ein Verfahren gemäß einem Ausführungsbeispiel der Erfindung ausführt; und
• 2 zeigt einen schematischen Ablauf des Verfahrens, das mit dem Audiowiedergabesystem aus 1 ausgeführt wird.

The invention is explained below with reference to the attached schematic figures.

• 1 shows a schematic view of an audio reproduction system according to an embodiment of the invention, which carries out a method according to an embodiment of the invention; and
• 2 shows a schematic sequence of the method that is performed with the audio reproduction system from 1 is performed.

In 1 is an audio playback system 10 shown according to an embodiment of the invention. The audio playback system 10 is integrated into an infotainment system, not shown in detail, of a vehicle not shown separately. The audio playback system 10 includes a logic unit 12 in the form of a computer with a microprocessor. The logic unit 12 executes stored program instructions (by means of the microprocessor) and thus controls the operation of the audio playback system 10 in order to be able to provide the steps and functions described below.

The audio playback system 10 also includes a storage device 15th , in order to be able to record or temporarily store audio content received. The audio playback system further comprises 10 a receiving device 16 . This receives audio content from a source external to the system 19th in the form of a schematically indicated radio station 18th , which sends a radio signal via radio link (e.g. VHF link) and audio content encoded therein or transmitted with it to the receiving unit 16 transmits. The receiving unit 16 is thus designed as a conventional radio receiver.

A connection device is also shown 20th with which the audio playback system 10 with other sources 21st that broadcast audio content. This can be, for example, an interface to further units of the infotainment system or (audio) sources 21 coupled to the infotainment system, with corresponding sources in the example shown 21st through a navigation system 23 and a telephone system 24 are formed.

With the telephone system 24 it is an interface with which a connection to a telephone device of a vehicle driver (e.g. to a smartphone) can be established (e.g. a Bluetooth interface). This interface enables functions of the telephone to be controlled via the infotainment system in a manner known per se and, in particular, that an audio signal from the telephone can be output via the infotainment system or the audio playback system (for example via loudspeakers (not shown separately) in the vehicle with which the audio playback system 10 connected is).

Finally, there is an analysis unit 14th shown (e.g. an algorithm) that is at least that provided by the radio station 18th received audio content is analyzed for speech content.

About in 1 The arrows shown are information links or signal exchange paths of the individual units. The off-system source 18th transmits a radio signal to the radio receiver 16 . The analysis unit 14th analyzes this radio signal to determine whether it contains speech content or music and / or vocal content. The analysis unit 14th make use of the algorithms explained above. The analysis unit transmits the corresponding determination result 14th to the logic unit 12 .

The logic unit 12 is also available with the connection device 20th in connection and determine whether from the other sources 21st audio content is obtained to be output.

In a first operating state, from the system-external source 18th The audio content received is reproduced (for example via the aforementioned loudspeakers), this operating state being characterized in that no other audio content should be output from other sources.

In a second operating state, the logic unit 12 determined that, for example, from the navigation system 23 an audio content should be output. The logic unit 12 then checks whether the analysis unit 14th currently indicates that the audio content of the radio station is being output 18th is a matter of speech. If so, various actions outlined below can be taken. If this is not the case, the radio station can play 18th are interrupted and instead the audio content of the navigation system are output, which can generally be a navigation instruction. If this audio playback has ended, playback or audio output of the audio playback system 10 again with the currently received audio content of the radio station 18th be continued.

The procedure described above is based on 2 explained in more detail. The following sequence of steps is not to be understood as a mandatory chronological order. Instead, the steps can also be carried out in reverse order or at least partially also in parallel, unless otherwise explained or apparent.

In a step S1, the radio station 18th Receive audio content. These are, so to speak, standardized by the audio playback system 10 for example output via the loudspeakers explained above. In a step S2 it is determined that from another source 21st than the radio station 18th audio content to be output can also be obtained. In a step S3, which could also be carried out prior to step S2, it is analyzed whether the audio content currently received is the radio station 18th is a matter of speech.

If this is not the case, that is to say the audio content is music and / or song content, the playback of the radio station takes place according to step S4 18th by means of the audio playback system 10 interrupted and instead the audio content of the other source (e.g. the telephone system or the navigation system) is output (see arrow N in 2 ). If, on the other hand, it was determined that it is a matter of speech (arrow Y), the audio content of the radio station is used in accordance with step S5 18th recorded. The logic unit is activated for this 12 the storage device 15th . The playback by means of the audio playback system then switches to that of the other source 21st received audio content. In step S6 it is then determined that the audio content of the other source 21st (e.g. the navigation system 23 or the telephone system 24 ) was played and that the playback of the radio station 18th can be continued.

In order to avoid loss of information and, in particular, loss of speaking content, the recorded speaking content is then first played back in step S7. At the same time it is determined whether a currently received audio content of the radio station 18th is also a content of speech, and if this is the case (arrow Y), this is recorded in parallel to the reproduction of the previously recorded content of speech in step S8. The determination of whether a currently received audio content is a speech content including, if applicable, a parallel recording, can be carried out repeatedly until the previously recorded speech content has been played back.

If the recorded content of speech has been reproduced, it is determined in step S9 whether further speech content has been recorded in the meantime, and if this is the case (arrow Y), this is reproduced in accordance with step S10a.

It goes without saying that, as long as recorded speech content is reproduced, analogously to the above explanation of step S8 it can be continuously checked whether current audio content of the radio station received in parallel 18th Are speech content, and these can then in turn be recorded in parallel with the playback of the recorded speech content. This can be continued until, after a recorded content has been played back, it is determined that no further content has been recorded in the meantime. This state is in the step S10 out 2 in front. In order to simplify the above functionalities and coordination of various recorded speech content, each recorded speech content can be provided with a time stamp.

In step S10 it is then checked whether a currently received audio content of the radio station 18th is a music and / or vocal content. If this is the case, step S11 to play the music and / or vocal content (received live), this being done preferably by fading in this content acoustically (gradually increasing the volume) in order to avoid irritation on the part of the driver. If, on the other hand, it is determined that the audio content currently received is also speech content, a corresponding display can be dispensed with in order to avoid loss of information.

Of course, any of the additional functions explained above in the general part of the description can also be included in the process sequence of FIG 2 to get integrated. For example, before playing recorded audio content in step S7 or step S9 be asked whether a user wants this reproduction at all, and if this is not the case, waives it and instead with the currently received audio content of the radio station 18th be continued.

The user can also cancel a recorded content of speech when it is played back and thus immediately for the transmission of current audio content from the radio station 18th switch.

In addition, it is also possible for recorded audio content to be output in text form (automatically or at the request of the user).

Finally, it is also possible in step S6 to adapt the audio content received from other sources (in particular navigation instructions), for example in order to actually prioritize the speech content of the radio station 18th interrupt as short as possible. For this purpose, all of the measures explained above can be taken, in particular an abbreviated output or a pure graphic representation of the navigation instructions.

List of reference symbols

10

Audio playback system

12

Logic unit

14th

Analysis unit

15th

Storage facility

16

Receiving unit

18th

Radio station

19th

external source

20th

Connection device

21st

other source

23

navigation system

24

Telephone system

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• US 2013/0308794 A1 [0005]
• DE 19925581 A1 [0006]

Claims (10)

Method for reproducing audio content, especially in a vehicle, with: a) playing back audio content with an audio playback system (10), the audio content being obtained from a source (19) external to the system; b) Determining whether the audio content should be played back from a source (21) other than the source external to the system, and if this is the case: c) Analyzing the audio content received from the system-external source (19) to determine whether it is likely to be a matter of speech, and if this is the case: d) recording the audio content received and playing back the audio content received from the other source (21). Procedure according to Claim 1 If the audio content received from the system-external source (19) is not speech content but, for example, music content and / or song content, the audio content received is not recorded or at least no recording with subsequent playback of the audio content received . Procedure according to Claim 1 or 2 wherein the recorded audio content which is speech content is reproduced after the reproduction of the audio content obtained from the other source (21) is finished. Method according to one of the preceding claims, wherein when the playback of the audio content from the other source (21) is ended, it is determined whether the audio content currently received from the system-external source (19) is likely to be spoken content. Procedure according to Claim 4 , in which case, if it is a matter of speech, this is recorded and the previously recorded speech is played back. Procedure according to Claim 4 or 5 , in which case, if it is not a matter of speech content, the recorded speech content is reproduced and, after this reproduction has ended, a reproduction of an audio content currently obtained from the system-external source (19) is continued. Method according to one of the preceding claims, wherein a recorded content of speech is at least partially translated into text form and output with a text output system. Method according to one of the preceding claims, wherein speaking pauses are at least partially removed from a recorded content of speech before reproduction. Method according to one of the preceding claims, wherein a navigation instruction of a navigation system (23) is adapted or is omitted if it is determined in c) that the audio content received is likely to be spoken content. Audio playback system, in particular for a vehicle, which is set up to carry out a method according to one of the preceding claims.

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