A volume feedback sound control method and system

Abstract

This application relates to the field of vehicle technology and provides a volume feedback tone control method and system. The method includes: real-time detection of the sound emission status of each sound source; receiving a volume adjustment command issued by a user and obtaining the target sound source identifier and target volume level from the volume adjustment command; determining the feedback method for volume change based on the detected sound emission status; if the feedback method triggers feedback tone playback, then executing the feedback tone playback operation based on preset feedback tone control rules; wherein the feedback tone uses a pre-made audio file configuration; during the volume adjustment process, a fade-in / fade-out processing strategy is applied to all audio outputs. This invention solves the technical problem of easily generating pop-up sounds in the prior art.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a method and system for controlling volume feedback tone. Background Technology

[0002] With the rapid development of automotive intelligence and connectivity, car audio systems are becoming increasingly feature-rich, supporting independent or combined volume adjustment for various audio sources such as multimedia playback, navigation prompts, voice interaction, telephone communication, radar alarms, and instrument panel alarms. Currently, car audio systems generally use fixed feedback tones or no feedback tones for volume adjustment, which has several drawbacks: when adjusting the volume of a non-emitting audio source, users cannot intuitively perceive the adjustment range and must repeatedly adjust and wait for the audio source to start playing before confirming the volume, making the operation cumbersome; when adjusting the volume of an emitting audio source, some systems still superimpose fixed feedback tones, causing interference between the two sounds and affecting the listening experience; the triggering logic for feedback tones is unreasonable, easily leading to false triggers, repeated triggers, or untimely triggers, and the lack of a unified control strategy for feedback tones from different audio sources can easily cause playback confusion; furthermore, during audio source switching or volume adjustment interruptions, pop sounds are easily generated, seriously affecting the user's auditory comfort.

[0003] Based on the above, there is an urgent need for a volume feedback tone control method and system to solve the technical problems of unintuitive volume adjustment feedback, poor auditory experience, unreasonable triggering logic, weak versatility, and easy generation of pop sounds in the existing technology. Summary of the Invention

[0004] The purpose of this invention is to provide a volume feedback tone control method and system, which solves the technical problem of easily generating pop noise in the prior art. The specific solution is as follows:

[0005] A volume feedback tone control system, comprising:

[0006] The sound source status monitoring module is used to detect the sound output status of each sound source in the car audio system in real time and send the detection results to the control module.

[0007] The instruction receiving module is used to receive volume adjustment instructions issued by the user, parse the target sound source identifier and target volume level in the volume adjustment instructions, and send the parsing results to the control module.

[0008] The control module is used to determine the corresponding volume feedback method based on the sound source's sound output status and volume adjustment command, and output feedback sound playback command and audio fade-in / fade-out command.

[0009] The feedback sound playback module is used to receive playback control commands from the control module and execute feedback sound operations, including: playback, stop, volume adjustment, and resume playback of feedback sounds.

[0010] The audio processing module receives fade-in and fade-out control commands from the control module and performs fade-in and fade-out processing operations on the audio output of the car audio system.

[0011] Optional, also includes:

[0012] The storage module is used to store the feedback audio files, the feedback strategy parameters of each audio source, and the correspondence of the volume bar shared by multiple audio sources; among them, the feedback strategy parameters include at least the playback duration and the fade-in and fade-out duration.

[0013] A volume feedback tone control method, applied to the system, the method comprising the following steps:

[0014] Step S1: Real-time detection of the sound output status of each sound source, including sound output and non-sound output status. The sound output status is when the sound source is in a continuous audio output state, and the non-sound output status is when the sound source is in a state of no audio output.

[0015] Step S2: Receive the volume adjustment command issued by the user, and obtain the target sound source identifier and target volume level in the volume adjustment command;

[0016] Step S3: Determine the feedback method for volume changes based on the detected sound state;

[0017] Step S4: If the feedback method in step S3 triggers the playback of feedback sound, then the feedback sound playback operation is executed based on the preset feedback sound control rules; wherein, the feedback sound is configured using a pre-made audio file;

[0018] Step S5: During volume adjustment, a fade-in / fade-out processing strategy is applied to all audio outputs.

[0019] Optionally, step S3: Based on the detected sound state, determine the feedback method for volume changes, specifically including:

[0020] S301: If the current target adjustment sound source is in a sound output state, the volume change is directly output through the audio of the target adjustment sound source; wherein, the output volume of the target adjustment sound source is synchronously adjusted based on the target volume in the volume adjustment command, and the triggering of feedback sound playback is prohibited.

[0021] S302: If the current target sound source is not in a sounding state, a feedback sound is triggered; wherein, the volume of the feedback sound is synchronously adjusted based on the target volume in the volume adjustment command.

[0022] Optionally, S301: If the current target adjustment sound source is in a sound-emitting state, the volume change is directly output through the audio of the target adjustment sound source, specifically including:

[0023] If the target sound source changes from a emitting state to a silent state during the volume adjustment process, and at the same time continues to receive newly issued volume adjustment commands, then the feedback sound corresponding to the target sound source will be played immediately to indicate the current volume adjustment change.

[0024] If the target adjustment audio source acquires new playback audio during the playback of the feedback sound, the currently playing feedback sound should not be interrupted, and the feedback sound and the new playback audio from the target adjustment audio source should be played synchronously.

[0025] Optionally, step S4: If the feedback method in step S3 triggers feedback sound playback, then the feedback sound playback operation is executed based on the preset feedback sound control rules; wherein, the feedback sound uses a pre-made audio file configuration, specifically including:

[0026] The preset feedback tone control rules include:

[0027] Configure the trigger rules for feedback sounds: When a volume adjustment command is received, trigger the playback of feedback sounds;

[0028] Feedback tone playback continuation control rules: For feedback tones corresponding to in-vehicle audio sources, after receiving the last volume adjustment command, the feedback tone will continue to play for a first preset duration; in-vehicle audio sources include at least: multimedia, ringtones, radar alarm tones, instrument panel alarm tones, voice, navigation, and telephone audio sources.

[0029] Feedback tone repetition triggering rule: If a volume adjustment command from the same target sound source is received again during the playback of the feedback tone, the feedback tone will not be replayed. The current feedback tone will continue to play and the volume will be adjusted synchronously. A new feedback tone will only be played when a volume adjustment command from the same target sound source is received again after the feedback tone has finished playing.

[0030] Feedback tone interruption rule: The feedback tone playback of each audio source will be executed according to the mutual interruption rule. Specifically, when the feedback tone of the first audio source is playing, if a volume adjustment command is received from the second audio source, the current feedback tone of the first audio source will be stopped immediately, and the feedback tone corresponding to the second audio source will be played.

[0031] Multi-source volume bar control rule: When multiple audio sources share the same volume bar for volume adjustment, the preset feedback tone corresponding to that volume bar will be used to indicate the volume change.

[0032] Optionally, step S5: During volume adjustment, a fade-in / fade-out processing strategy is applied to all audio outputs, specifically including:

[0033] When the audio starts playing, the volume gradually increases from mute to the target volume;

[0034] When the audio stops playing or is interrupted, the volume gradually decreases from the current volume to a muted state.

[0035] An electronic device includes: a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus; characterized in that the memory stores a computer program, which, when executed by the processor, causes the processor to perform the steps of the method.

[0036] A computer-readable storage medium storing a computer program executable by an electronic device, which, when run on the electronic device, causes the electronic device to perform the steps of the method described herein.

[0037] A simulation platform, comprising:

[0038] An electronic device for implementing the steps of the method;

[0039] A processor that runs a program, and when the program runs, it executes the steps of the method from data output by the electronic device.

[0040] A storage medium for storing a program that, when run, executes the steps of the method on data output from an electronic device.

[0041] The above solution achieves the following beneficial technical effects:

[0042] This application provides a volume feedback tone control method and system. Through modular linkage of sound source status monitoring, command reception, feedback control, and audio processing, it can intelligently match the corresponding volume feedback mode according to the real-time sound output status of each sound source, and control the playback, stop, volume adjustment, and continuation of the feedback tone. At the same time, it performs fade-in and fade-out processing on the audio output throughout the volume adjustment process. This design not only provides users with clear, accurate, and interference-free volume adjustment feedback, avoiding problems such as feedback tone superposition and chaotic triggering when switching multiple sound sources and adjusting continuously, but also eliminates the popping sound generated during audio start-stop and interruption, thus improving the interactive smoothness and auditory comfort of volume adjustment in in-vehicle multi-sound source scenarios. Attached Figure Description

[0043] Figure 1 This is a flowchart illustrating a volume feedback tone control method.

[0044] Figure 2 This is a block diagram of a volume feedback sound control system. Detailed Implementation

[0045] To make the purpose, technical solution, and advantages of this application clearer, the following will be described in conjunction with the appendix. Figure 1 and Figure 2 This application will be described in further detail. It is obvious that the described embodiments are merely some, not all, of the embodiments described herein. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0046] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the application. The singular forms “a,” “said,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.

[0047] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0048] It should be understood that although the terms first, second, third, etc., may be used in the embodiments of this application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, first may also be referred to as second without departing from the scope of the embodiments of this application, and similarly, second may also be referred to as first.

[0049] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0050] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0051] It should be noted that any symbols and / or numbers present in the specification that are not marked in the accompanying drawings are not reference numerals.

[0052] The optional embodiments of this application are described in detail below with reference to the accompanying drawings.

[0053] Figure 1 The volume feedback tone control system shown includes:

[0054] The sound source status monitoring module is used to detect the sound output status of each sound source in the car audio system in real time and send the detection results to the control module.

[0055] The instruction receiving module is used to receive volume adjustment instructions issued by the user, parse the target sound source identifier and target volume level in the volume adjustment instructions, and send the parsing results to the control module.

[0056] The control module is used to determine the corresponding volume feedback method based on the sound source's sound output status and volume adjustment command, and output feedback sound playback command and audio fade-in / fade-out command.

[0057] The feedback sound playback module is used to receive playback control commands from the control module and execute feedback sound operations, including: playback, stop, volume adjustment, and resume playback of feedback sounds.

[0058] The audio processing module receives fade-in and fade-out control commands from the control module and performs fade-in and fade-out processing operations on the audio output of the car audio system.

[0059] Specifically, this application utilizes modular linkage mechanisms such as sound source status monitoring, command reception, feedback control, and audio processing to intelligently match the corresponding volume feedback method based on the real-time sound output status of each sound source. It also controls the playback, pausing, volume adjustment, and continuation of feedback sounds. Simultaneously, it performs fade-in and fade-out processing on the audio output throughout the entire volume adjustment process. This design not only provides users with clear, accurate, and interference-free volume adjustment feedback, avoiding issues such as feedback sound overlap and chaotic triggering during multi-sound source switching and continuous adjustment, but also eliminates popping sounds generated during audio start-stop and interruption processes at the source, thereby comprehensively improving the interactive smoothness and auditory comfort of volume adjustment in in-vehicle multi-sound source scenarios.

[0060] In one specific embodiment, it further includes:

[0061] The storage module is used to store the feedback audio files, the feedback strategy parameters of each audio source, and the correspondence of the volume bar shared by multiple audio sources; among them, the feedback strategy parameters include at least the playback duration and the fade-in and fade-out duration.

[0062] The storage module centrally stores and manages the feedback audio files, feedback strategy parameters for each audio source, and the corresponding relationships of the volume bar shared by multiple audio sources. This enables flexible configuration and standardized calling of key control parameters such as playback duration and fade-in / fade-out duration. It provides stable and reliable data support for the feedback decision-making of the control module, the timing control of the feedback playback module, and the smooth processing of the audio processing module, ensuring consistent volume feedback in multi-audio source scenarios. It also supports rapid adaptation and strategy updates for different vehicle models and different audio source scenarios.

[0063] On the other hand, this application provides a volume feedback tone control method applied to the aforementioned system, the method comprising the following steps:

[0064] Step S1: Real-time detection of the sound output status of each sound source, including sound output and non-sound output status. The sound output status is when the sound source is in a continuous audio output state, and the non-sound output status is when the sound source is in a state of no audio output.

[0065] Step S2: Receive the volume adjustment command issued by the user, and obtain the target sound source identifier and target volume level in the volume adjustment command;

[0066] Step S3: Determine the feedback method for volume changes based on the detected sound state;

[0067] Step S4: If the feedback method in step S3 triggers the playback of feedback sound, then the feedback sound playback operation is executed based on the preset feedback sound control rules; wherein, the feedback sound is configured using a pre-made audio file;

[0068] Step S5: During volume adjustment, a fade-in / fade-out processing strategy is applied to all audio outputs.

[0069] Specifically, this application achieves dynamic adaptive control of volume feedback by real-time detection of the sound source's audible state and recognition of volume adjustment commands. It intelligently switches feedback logic based on whether the sound source is audible or not, ensuring clean and unambiguous audio feedback during sound source adjustment. It also ensures clear volume change feedback even when the sound source is muted, solving the problem of traditional systems providing no feedback and unclear user perception when adjusting volume in the absence of a sound source. Furthermore, through feedback tone control rules, it precisely controls the triggering, repeated triggering, multi-source interruption, playback continuation, and touch tone masking of feedback tones, avoiding the defects of chaotic and overlapping feedback tones, frequent triggering, and auditory interference during multi-source switching, significantly improving the consistency of audio interaction. Combined with a fade-in / fade-out processing strategy throughout volume adjustment, it eliminates popping sounds generated during audio start-stop, switching, and interruption, achieving smooth audio transitions. The overall solution improves the user's perception of volume adjustment range without increasing hardware costs, while greatly optimizing auditory comfort and interaction smoothness in complex in-vehicle audio scenarios.

[0070] In one specific embodiment, step S3: determining the feedback method for volume change based on the detected sound emission state, specifically including:

[0071] S301: If the current target adjustment sound source is in a sound output state, the volume change is directly output through the audio of the target adjustment sound source; wherein, the output volume of the target adjustment sound source is synchronously adjusted based on the target volume in the volume adjustment command, and the triggering of feedback sound playback is prohibited.

[0072] S302: If the current target sound source is not in a sounding state, a feedback sound is triggered; wherein, the volume of the feedback sound is synchronously adjusted based on the target volume in the volume adjustment command.

[0073] It is understandable that the feedback method of adjusting the volume change is adapted by differentiating the sound source's output state. When the sound source is outputting, the volume change is directly reflected through the original audio and the feedback sound is turned off to avoid unnecessary prompts causing auditory interference. When the sound source is not outputting, the feedback sound is automatically triggered to ensure that the user can still clearly perceive the volume adjustment effect in the absence of original sound output. This solves the technical problems of unclear volume adjustment feedback, redundant prompts, or missing prompts in traditional systems.

[0074] In one specific embodiment, S301: If the current target adjustment sound source is in a sound-emitting state, the volume change is directly output through the audio of the target adjustment sound source, specifically including:

[0075] If the target sound source changes from a emitting state to a silent state during the volume adjustment process, and at the same time continues to receive newly issued volume adjustment commands, then the feedback sound corresponding to the target sound source will be played immediately to indicate the current volume adjustment change.

[0076] For example, a user is currently playing music via Bluetooth in the car. When the song finishes playing and transitions from a playing state to a silent state, the user continuously presses the volume button to turn up the music volume. Normally, the music volume increases synchronously without any feedback sound. However, since the song has finished playing and the music is silent, the user is unaware that the song has ended and is unaware of the volume adjustment. At this point, a feedback playback, such as a beep, is triggered to notify the user that the volume adjustment has taken effect.

[0077] If the target adjustment audio source acquires new playback audio during the playback of the feedback sound, the currently playing feedback sound should not be interrupted, and the feedback sound and the new playback audio from the target adjustment audio source should be played synchronously.

[0078] It is understandable that by dynamically tracking and logically judging the switching process of the target adjustment sound source's sound state, a smooth transition and intelligent adaptation of the volume feedback method are achieved: when the sound source changes from sounding to not sounding during adjustment, a feedback sound can be triggered immediately to ensure that the volume change is continuously perceptible, avoiding the loss of adjustment reference for the user due to the sound source being muted; when the sound source resumes sounding during the playback of the feedback sound, the current feedback sound is not interrupted but a synchronous mixed playback method is adopted, which not only ensures the integrity of the volume prompt, but also avoids the abruptness and popping sound risk caused by sudden audio switching.

[0079] In one specific embodiment, step S4: If the feedback method in step S3 triggers feedback sound playback, then the feedback sound playback operation is executed based on preset feedback sound control rules; wherein, the feedback sound is configured using a pre-made audio file, specifically including:

[0080] The preset feedback tone control rules include:

[0081] Configure the trigger rules for feedback sounds: When a volume adjustment command is received, trigger the playback of feedback sounds;

[0082] Feedback tone playback continuation control rules: For feedback tones corresponding to in-vehicle audio sources, after receiving the last volume adjustment command, the feedback tone will continue to play for a first preset duration; in-vehicle audio sources include at least: multimedia, ringtones, radar alarm tones, instrument panel alarm tones, voice, navigation, and telephone audio sources.

[0083] Feedback tone repetition triggering rule: If a volume adjustment command from the same target sound source is received again during the playback of the feedback tone, the feedback tone will not be replayed. The current feedback tone will continue to play and the volume will be adjusted synchronously. A new feedback tone will only be played when a volume adjustment command from the same target sound source is received again after the feedback tone has finished playing.

[0084] Feedback tone interruption rule: The feedback tone playback of each audio source will be executed according to the mutual interruption rule. Specifically, when the feedback tone of the first audio source is playing, if a volume adjustment command is received from the second audio source, the current feedback tone of the first audio source will be stopped immediately, and the feedback tone corresponding to the second audio source will be played.

[0085] Multi-source volume bar control rule: When multiple audio sources share the same volume bar for volume adjustment, the preset feedback tone corresponding to that volume bar will be used to indicate the volume change.

[0086] It is understood that this application establishes multi-level feedback tone control rules, including triggering, continuation playback, repetition suppression, cross-source preemption, and unified scheduling of shared volume bars. When continuously adjusting the same source, it adopts a method of prohibiting re-triggering and maintaining the continuous playback of the current feedback tone to avoid frequent feedback tone activation, superimposed distortion, and discontinuous playback. When feedback tones from different sources conflict, it adopts a processing mechanism where the later switching priority is higher than the previous source, so that the feedback tone from the new source directly replaces the original feedback tone, ensuring orderly scheduling and no mixing under multi-source interaction. At the same time, it realizes delayed continuation playback of feedback tone through the recognition of the last volume command to ensure complete prompting of volume adjustment results, and realizes unified output of multi-source feedback by binding the shared volume bar with the feedback tone. The overall solution avoids audio conflicts, timing chaos, and abnormal noise in multi-source parallel scenarios from a mechanism perspective, and improves the stability, consistency, and anti-interference capability of system control.

[0087] For example: Feedback sound playback control: a preset audio segment is used as a unified feedback sound, and precise control is given to the playback trigger, volume synchronization, playback interruption and resumption of the feedback sound;

[0088] Feedback tone trigger condition: Feedback tone playback is triggered only when a volume adjustment command is received; the trigger point is the user's finger pressing down.

[0089] Feedback tone playback continuation control: For feedback tones corresponding to multimedia, ringtones, radar alarm tones, and instrument alarm tones, after receiving the final volume adjustment command, the feedback tone audio content will continue to play for 3.5 seconds (this duration can be adjusted according to the actual vehicle model requirements); For feedback tones corresponding to voice, navigation, and telephone functions in overseas versions, in order to be compatible with multilingual models, the same feedback strategy as multimedia and ringtones is adopted, that is, the feedback tone audio file is the same as the feedback tone audio file corresponding to multimedia and ringtones, and after receiving the final volume adjustment command, the audio content will also continue to play for 3.5 seconds (adjustable);

[0090] Feedback sound volume synchronization: During the playback of feedback sound, the output volume of the feedback sound is adjusted synchronously with the volume level issued during the adjustment of the volume bar, so that users can intuitively perceive the volume adjustment range through the feedback sound;

[0091] Feedback tone repetition trigger control: If a volume adjustment command is received again from the same target sound source during the playback of the feedback tone, the feedback tone will not be replayed. Instead, the current feedback tone will continue to play and the volume will be adjusted synchronously. A new feedback tone will only be triggered when a volume adjustment command from the same target sound source is received again after the feedback tone has finished playing.

[0092] Feedback tone interruption logic: The playback of feedback tones corresponding to each sound source executes mutual interruption logic. That is, when the feedback tone of a certain sound source is playing, if a volume adjustment command is received from another sound source, the currently playing feedback tone will be stopped immediately, and the feedback tone corresponding to the new target sound source will be played instead.

[0093] Touch sound shielding: During the volume adjustment of all audio sources (navigation, multimedia, voice, telephone, ringtone, radar alarm tone, instrument alarm tone), the above feedback sound scheme is used to avoid triggering the touch sound feedback of the car audio system and avoid mutual interference between touch sound and feedback sound.

[0094] When multiple audio sources share a single "volume bar" for volume adjustment, regardless of which audio source's volume is being adjusted, the volume change is reflected by a single feedback tone. This single feedback tone uses the preset feedback tone corresponding to the shared volume bar to avoid auditory confusion caused by the superposition of multiple feedback tones.

[0095] In one specific embodiment, step S5: During the volume adjustment process, a fade-in / fade-out processing strategy is applied to all audio outputs, specifically including:

[0096] When the audio starts playing, the volume gradually increases from mute to the target volume;

[0097] When the audio stops playing or is interrupted, the volume gradually decreases from the current volume to a muted state.

[0098] It is understood that during the entire volume adjustment process, the car's infotainment system performs fade-in and fade-out processing on all audio outputs. Specifically, when audio starts playing, the volume gradually increases from 0 to the target volume; when audio stops playing or is interrupted, the volume gradually decreases from the current volume to 0. This processing avoids popping sounds when the audio source is interrupted, switched, or when the feedback sound starts or stops, thus improving listening comfort.

[0099] Example: Sound source status detection. The car audio system uses a 200ms detection cycle. It detects that the current sound source is voice. The user issues a volume adjustment command via the steering wheel volume buttons, specifying "adjust volume to 70%". The command receiving module parses the target sound source as voice and the target volume as 70%. The sound source status detection module reports that the voice is not currently playing, and determines to use a feedback tone. The voice feedback tone uses an audio file, and its volume is simultaneously adjusted to 70%. During the playback of the feedback tone, if the user issues another voice volume adjustment command (adjusting to 75%), the feedback tone is not replayed, and its volume is simultaneously adjusted to 75%. During volume adjustment, the audio processing module performs a 60ms fade-in / fade-out process on the feedback tone to avoid pop-up sounds. If a phone call begins during the playback of the feedback tone (phone audio source), the feedback tone automatically stops.

[0100] On the other hand, this application provides an electronic device, including: a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus;

[0101] The memory stores a computer program that, when executed by a processor, causes the processor to perform the steps of the method.

[0102] On the other hand, this application provides a computer-readable storage medium having a computer program / instructions stored thereon, which, when executed by a processor, implement the steps of the method.

[0103] A simulation platform, comprising:

[0104] An electronic device for implementing the steps of the method;

[0105] A processor that runs a program, which, when running, executes the steps of the method claimed in the electronic device from data output by the program.

[0106] A storage medium for storing a program that, when run, executes the steps of the method on data output from an electronic device.

[0107] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0108] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A volume feedback tone control system characterized by, include: The sound source status monitoring module is used to detect the sound output status of each sound source in the car audio system in real time and send the detection results to the control module. The instruction receiving module is used to receive volume adjustment instructions issued by the user, parse the target sound source identifier and target volume level in the volume adjustment instructions, and send the parsing results to the control module. The control module is used to determine the corresponding volume feedback method based on the sound source's sound output status and volume adjustment command, and output feedback sound playback command and audio fade-in / fade-out command. The feedback sound playback module is used to receive playback control commands from the control module and execute feedback sound operations, including: playback, stop, volume adjustment, and resume playback of feedback sounds. The audio processing module receives fade-in and fade-out control commands from the control module and performs fade-in and fade-out processing operations on the audio output of the car audio system.

2. The system of claim 1, wherein, Also includes: The storage module is used to store the feedback audio files, the feedback strategy parameters of each audio source, and the correspondence of the volume bar shared by multiple audio sources; among them, the feedback strategy parameters include at least the playback duration and the fade-in and fade-out duration.

3. A volume feedback tone control method, characterized by, Applied to the system of claim 1 or 2, the method includes the following steps: Step S1: Real-time detection of the sound output status of each sound source, including the sound output status and the non-sound output status. The sound output status is when the sound source is in a continuous audio output state, and the non-sound output status is when the sound source is in a state of no audio output. Step S2: Receive the volume adjustment command issued by the user, and obtain the target sound source identifier and target volume level in the volume adjustment command; Step S3: Determine the feedback method for volume changes based on the detected sound state; Step S4: If the feedback method in step S3 triggers the playback of feedback sound, then the feedback sound playback operation is executed based on the preset feedback sound control rules; wherein, the feedback sound is configured using a pre-made audio file; Step S5: During volume adjustment, a fade-in / fade-out processing strategy is applied to all audio outputs.

4. The volume feedback tone control method according to claim 3, characterized in that, Step S3: Based on the detected sound output state, determine the feedback method for volume changes, specifically including: S301: If the current target adjustment sound source is in a sound output state, the volume change is directly output through the audio of the target adjustment sound source; wherein, the output volume of the target adjustment sound source is synchronously adjusted based on the target volume in the volume adjustment command, and the triggering of feedback sound playback is prohibited. S302: If the current target sound source is not in a sounding state, a feedback sound is triggered; wherein, the volume of the feedback sound is synchronously adjusted based on the target volume in the volume adjustment command.

5. A volume feedback tone control method according to claim 4, characterized in that, S301: If the current target sound source is emitting sound, the volume change is directly output through the audio of the target sound source, specifically including: If the target sound source changes from a emitting state to a silent state during the volume adjustment process, and at the same time continues to receive newly issued volume adjustment commands, then the feedback sound corresponding to the target sound source will be played immediately to indicate the current volume adjustment change. If the target adjustment audio source acquires new playback audio during the playback of the feedback sound, the currently playing feedback sound should not be interrupted, and the feedback sound and the new playback audio from the target adjustment audio source should be played synchronously.

6. A volume feedback tone control method as defined in claim 5, characterized in that Step S4: If the feedback method in step S3 triggers feedback sound playback, then the feedback sound playback operation is executed based on the preset feedback sound control rules; wherein, the feedback sound uses a pre-made audio file configuration, specifically including: The preset feedback tone control rules include: Configure the trigger rules for feedback sounds: When a volume adjustment command is received, trigger the playback of feedback sounds; Feedback tone playback continuation control rules: For feedback tones corresponding to in-vehicle audio sources, after receiving the last volume adjustment command, the feedback tone will continue to play for a first preset duration; in-vehicle audio sources include at least: multimedia, ringtones, radar alarm tones, instrument panel alarm tones, voice, navigation, and telephone audio sources. Feedback tone repetition triggering rule: If a volume adjustment command from the same target sound source is received again during the playback of the feedback tone, the feedback tone will not be replayed. The current feedback tone will continue to play and the volume will be adjusted synchronously. A new feedback tone will only be played when a volume adjustment command from the same target sound source is received again after the feedback tone has finished playing. Feedback tone interruption rule: The feedback tone playback of each audio source will be executed according to the mutual interruption rule. Specifically, when the feedback tone of the first audio source is playing, if a volume adjustment command is received from the second audio source, the current feedback tone of the first audio source will be stopped immediately, and the feedback tone corresponding to the second audio source will be played. Multi-source volume bar control rule: When multiple audio sources share the same volume bar for volume adjustment, the preset feedback tone corresponding to that volume bar will be used to indicate the volume change.

7. A volume feedback tone control method according to claim 6, characterized in that, Step S5: During volume adjustment, a fade-in / fade-out processing strategy is applied to all audio outputs, specifically including: When the audio starts playing, the volume gradually increases from mute to the target volume; When the audio stops playing or is interrupted, the volume gradually decreases from the current volume to a muted state.

8. An electronic device, comprising: The system comprises a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus; characterized in that the memory stores a computer program, which, when executed by the processor, causes the processor to perform the steps of the method described in any one of claims 3-7.

9. A computer-readable storage medium, characterized in that, The device stores a computer program executable by an electronic device, which, when run on the electronic device, causes the electronic device to perform the steps of the method as described in any one of claims 3 to 7.

10. A simulation platform, characterized in that, include: An electronic device for implementing the steps of the method according to any one of claims 3 to 7; A processor that runs a program that, when the program is running, performs the steps of the method according to any one of claims 3 to 7 by outputting data from an electronic device. A storage medium for storing a program that, when run, performs the steps of the method according to any one of claims 3 to 7 on data output from an electronic device.

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