CN107247572B - Audio playing method, terminal and computer readable storage medium - Google Patents
Audio playing method, terminal and computer readable storage medium Download PDFInfo
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Abstract
The invention discloses an audio playing method, a terminal and a computer readable storage medium, comprising: detecting whether the current environment is suitable for playing audio; if the current environment is suitable for playing the audio, calling and playing the audio information to be played according to the historical playing record, and acquiring a playing standard corresponding to the audio information to be played; denoising the loudness curve corresponding to the currently played audio to obtain a playing effect loudness curve corresponding to the currently played audio; and when the fact that the playing effect loudness curve exceeds the range corresponding to the playing standard is detected, feeding back prompt information for prompting a user to adjust the playing volume. By the method and the device, the playing volume is scientifically and dynamically adjusted according to the influence of the environmental noise on the playing audio, so that the loudness felt by human ears is in a proper degree when the audio is played.
Description
Technical Field
The present invention relates to the field of audio playing technologies, and in particular, to an audio playing method, a terminal, and a computer-readable storage medium.
Background
In audio playback, the loudness corresponding to audio playback is an important indicator. Loudness refers to the subjective perception of how loud and weak a sound is heard by the human ear. In different environments, there are different requirements on loudness due to the presence of ambient noise. However, the influence of the environmental noise on the played audio is often not accurate enough according to human ears, so that the loudness corresponding to the played audio cannot be scientifically adjusted dynamically based on the influence of the environmental noise on the played audio.
Disclosure of Invention
The invention mainly aims to provide an audio playing method, and aims to solve the technical problem that in the prior art, the influence of environmental noise on playing audio is often not accurate enough according to human ears, so that the loudness corresponding to the playing audio cannot be scientifically and dynamically adjusted based on the influence of the environmental noise on the playing audio.
In order to achieve the above object, the present invention provides an audio playing method, including:
detecting whether the current environment is suitable for playing audio;
if the current environment is suitable for playing the audio, calling and playing the audio information to be played according to the historical playing record, and acquiring a playing standard corresponding to the audio information to be played;
denoising the loudness curve corresponding to the currently played audio to obtain a playing effect loudness curve corresponding to the currently played audio;
and when the fact that the playing effect loudness curve exceeds the range corresponding to the playing standard is detected, feeding back prompt information for prompting a user to adjust the playing volume.
Preferably, the detecting whether the current environment is suitable for playing the audio comprises:
acquiring environmental noise acquired by a sound acquisition device within a preset time period, and acquiring a characteristic frequency band loudness curve corresponding to the environmental noise according to the environmental noise;
acquiring the total duration corresponding to the part, which is greater than a preset loudness threshold value, in the characteristic frequency band loudness curve according to the characteristic frequency band loudness curve;
detecting whether the ratio of the total duration in the preset time period is greater than a preset ratio threshold value or not;
and if the proportion of the total duration in the preset time period is greater than a preset proportion threshold value, the current environment is not suitable for playing the audio, otherwise, the current environment is suitable for playing the audio.
Preferably, the detecting whether the current environment is suitable for playing the audio further comprises:
acquiring environmental noise acquired by a sound acquisition device within a preset time period, and acquiring a sharpness curve corresponding to the environmental noise according to the environmental noise;
detecting whether the corresponding sharpness value of the sharpness curve is larger than a preset sharpness threshold value or not;
if the sharpness value corresponding to the sharpness curve is larger than a preset sharpness threshold value, the current environment is not suitable for playing the audio, otherwise, the current environment is suitable for playing the audio.
Preferably, the detecting whether the current environment is suitable for playing the audio comprises:
and if the current environment is not suitable for playing the audio, feeding back warning information.
Preferably, if the current environment is suitable for playing the audio, calling and playing the audio information to be played according to the history playing record, and acquiring the playing standard corresponding to the audio information to be played includes:
if the current environment is suitable for playing the audio, acquiring the identity information of the current user;
and acquiring a historical play record corresponding to the identity information, calling and playing the audio information to be played according to the historical play record, and acquiring a play standard corresponding to the audio information to be played.
Preferably, the playback criteria include:
and the standard characteristic loudness curve corresponding to the audio to be played.
Preferably, when it is detected that the playing effect loudness curve exceeds the range corresponding to the playing standard, feeding back prompt information for prompting a user to adjust the playing volume includes:
and when the fact that the playing effect loudness curve exceeds the upper limit corresponding to the playing standard is detected, feeding back a volume reduction prompt to prompt a user to reduce the playing volume.
Preferably, when it is detected that the playback effect loudness curve exceeds the range corresponding to the playback standard, feeding back prompt information for prompting a user to adjust the playback volume further includes:
and when the fact that the playing effect loudness curve exceeds the lower limit corresponding to the playing standard is detected, feeding back a volume increasing prompt to prompt a user to increase the playing volume.
In addition, to achieve the above object, the present invention further provides an audio playback terminal, including: the audio playing program is stored on the memory and can be operated on the processor, and when being executed by the processor, the audio playing program realizes the steps of the audio playing method.
In addition, to achieve the above object, the present invention further provides a computer readable storage medium, having an audio playing program stored thereon, where the audio playing program, when executed by a processor, implements the steps of the audio playing method as described above.
In the invention, before the audio to be played is played, whether the current environment is suitable for playing the audio is detected, if the current environment is suitable for playing the audio, the audio to be played is called and played, a loudness curve corresponding to the audio to be played is denoised to obtain a corresponding playing effect loudness curve, and when the fact that the playing effect loudness curve exceeds a corresponding range of a playing standard corresponding to the audio to be played is detected, prompt information is fed back to prompt a user to adjust the playing volume. By the method and the device, the playing volume is scientifically and dynamically adjusted according to the influence of the environmental noise on the playing audio, so that the loudness felt by human ears is in a proper degree when the audio is played.
Drawings
FIG. 1 is a flowchart illustrating an audio playing method according to a first embodiment of the present invention;
FIG. 2 is a detailed flowchart of step S20 in FIG. 1;
fig. 3 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a flowchart illustrating an audio playing method according to a first embodiment of the present invention.
In one embodiment, an audio playing method includes:
step S10, detecting whether the current environment is suitable for playing audio;
in this embodiment, whether the current environment plays audio or not is detected, and the environmental noise in the current environment is first acquired. For example, a sound acquisition device similar to a microphone is used to acquire the current environmental noise, and the sound acquisition device may be integrated inside the terminal or externally connected to the terminal, which is not limited herein and is specifically determined according to actual needs. The ambient noise may be acquired over a period of time, such as 10S of ambient noise in the current environment. After the current environmental noise is acquired, the acquired environmental noise is processed, for example, audio processing software is built in the terminal, and the characteristic frequency band loudness curve and the noise spectrum corresponding to the environmental noise are obtained by processing the environmental noise audio. Analyzing a characteristic frequency band loudness curve, calculating the proportion of duration corresponding to a part of the characteristic frequency band loudness curve, the loudness of which exceeds a preset loudness threshold (the value can be manually set according to needs, for example, set to 50 square), in the sampling duration (namely, 10S mentioned above), judging whether the proportion exceeds a preset proportion (can be manually set according to needs, for example, set to 10%), and if the proportion does not exceed the preset proportion, indicating that the current environment is suitable for playing audio; if the proportion is greater than or equal to the preset proportion, it indicates that the current environment is not suitable for playing the audio, and then a warning message is fed back, for example, a text "currently not suitable for playing the audio" is displayed in a terminal display area, or a sound alarm is issued, or a light is flashed, and the like, which is not limited herein.
In another alternative embodiment of the invention, the sharpness calculation formula is used:
computing ambient noise versus sharpness, where k20.11 is a weighting factor,
z is the number of psychoacoustic critical bands; n' (z) is the characteristic loudness function.
Obtaining a sharpness curve corresponding to the environmental noise, analyzing the sharpness curve, and if a certain value exists in a plurality of values corresponding to the sharpness curve and is greater than or equal to a preset sharpness threshold (which can be set according to actual needs, for example, 1.0), indicating that the current environment is not suitable for playing, feeding back a warning message, for example, displaying a text "currently not suitable for playing audio" in a terminal display area, or making a sound alarm, or flashing lights, and the like, without limitation.
Step S20, if the current environment is suitable for playing audio, calling and playing the audio information to be played according to the history playing record, and acquiring the playing standard corresponding to the audio information to be played;
in an embodiment of the present invention, when the current environment is suitable for playing an audio, a historical playing record of the current user (for example, a historical time node for playing an article/song audio) is obtained according to the identity information of the current user, a playing time node of the current audio to be played is obtained according to the historical playing record (for example, a historical playing record of a segment of audio is 15 minutes and 25 seconds, and a playing start time point of the audio to be played is 15 minutes and 25 seconds), the audio to be played is played, and a playing standard corresponding to the audio information to be played is obtained at the same time. In this embodiment, the playing criteria include upper and lower limits corresponding to a standard characteristic loudness curve when the current audio to be played is played in a noise-free state (for example, upper and lower limits corresponding to a standard characteristic loudness curve when the current audio to be played is played in a quiet environment such as a sound studio).
Step S30, carrying out denoising processing on the loudness curve corresponding to the currently played audio to obtain a playing effect loudness curve corresponding to the currently played audio;
in this embodiment, the noise removal processing on the loudness curve corresponding to the currently played audio may be performed through audio noise removal software (e.g., speex, etc.) or a noise removal algorithm preset in the terminal, so as to obtain a playing effect loudness curve corresponding to the currently played audio.
And step S40, when the playing effect loudness curve is detected to exceed the corresponding range of the playing standard, feeding back prompt information for prompting a user to adjust the playing volume.
In this embodiment, the playing standard corresponding range is an upper limit and a lower limit corresponding to a standard characteristic loudness curve when the currently played audio is played in a noise-free state, and if it is detected that the playing effect loudness curve exceeds the playing standard corresponding range, it indicates that the loudness corresponding to the currently played audio is inappropriate, prompt information is fed back, such as a text prompt (prompting a user to reduce or increase the volume), and a light prompt (the light with color 1 represents reducing the volume, and the light with color 2 represents increasing the volume). For example, when it is detected that the playback effect loudness curve exceeds the upper limit corresponding to the playback standard, the user is prompted to decrease the playback volume, when it is detected that the playback effect loudness curve exceeds the lower limit corresponding to the playback standard, the user is prompted to increase the playback volume, when it is detected that the playback effect loudness curve exceeds both the upper limit corresponding to the playback standard and the lower limit corresponding to the playback standard, which indicates that the playback effect is not good at this time, the playback is stopped, and the process returns to step S10.
In this embodiment, before the audio to be played is played, whether the current environment is suitable for playing the audio is detected, if the current environment is suitable for playing the audio, the audio to be played is called and played, a loudness curve corresponding to the audio to be played is subjected to de-noising processing, so as to obtain a corresponding playing effect loudness curve, and when it is detected that the playing effect loudness curve exceeds a corresponding range of a playing standard corresponding to the audio to be played, prompt information is fed back to prompt a user to adjust the playing volume. By the method and the device, the playing volume is scientifically and dynamically adjusted according to the influence of the environmental noise on the playing audio, so that the loudness felt by human ears is in a proper degree when the audio is played.
Further, in an alternative embodiment of the present invention, step S10 includes:
acquiring environmental noise acquired by a sound acquisition device within a preset time period, and acquiring a characteristic frequency band loudness curve corresponding to the environmental noise according to the environmental noise;
acquiring the total duration corresponding to the part, which is greater than a preset loudness threshold value, in the characteristic frequency band loudness curve according to the characteristic frequency band loudness curve;
detecting whether the ratio of the total duration in the preset time period is greater than a preset ratio threshold value or not;
and if the proportion of the total duration in the preset time period is greater than a preset proportion threshold value, the current environment is not suitable for playing the audio, otherwise, the current environment is suitable for playing the audio.
In this embodiment, whether the current environment plays audio or not is detected, and the environmental noise in the current environment is first acquired. For example, a sound acquisition device similar to a microphone is used to acquire the current environmental noise, and the sound acquisition device may be integrated inside the terminal or externally connected to the terminal, which is not limited herein and is specifically determined according to actual needs. The ambient noise may be acquired over a period of time, such as 10S of ambient noise in the current environment. After the current environmental noise is acquired, the acquired environmental noise is processed, for example, audio processing software is built in the terminal, and the characteristic frequency band loudness curve and the noise spectrum corresponding to the environmental noise are obtained by processing the environmental noise audio. Analyzing a characteristic frequency band loudness curve, calculating the proportion of duration corresponding to a part of the characteristic frequency band loudness curve, the loudness of which exceeds a preset loudness threshold (the value can be manually set according to needs, for example, set to 50 square), in a preset time period (namely, 10S mentioned above), judging whether the proportion exceeds a preset proportion (can be manually set according to needs, for example, set to 10%), and if the proportion does not exceed the preset proportion, indicating that the current environment is suitable for playing audio; if the proportion is greater than or equal to the preset proportion, it indicates that the current environment is not suitable for playing the audio, and then a warning message is fed back, for example, a text "currently not suitable for playing the audio" is displayed in a terminal display area, or a sound alarm is issued, or a light is flashed, and the like, which is not limited herein.
In the embodiment, whether the current environment is suitable for playing is judged by analyzing the environmental noise collected in the preset time period and according to the proportion of the total duration corresponding to the part, which is greater than the preset loudness threshold value, of the characteristic frequency band loudness curve corresponding to the environmental noise in the preset time period, so that the environmental noise can be scientifically analyzed, and the subsequent audio playing is guided according to the analysis result.
Further, in another optional embodiment of the present invention, step S10 further includes:
acquiring environmental noise acquired by a sound acquisition device within a preset time period, and acquiring a sharpness curve corresponding to the environmental noise according to the environmental noise;
detecting whether the corresponding sharpness value of the sharpness curve is larger than a preset sharpness threshold value or not;
if the sharpness value corresponding to the sharpness curve is larger than a preset sharpness threshold value, the current environment is not suitable for playing the audio, otherwise, the current environment is suitable for playing the audio.
In this embodiment, whether the current environment plays audio or not is detected, and the environmental noise in the current environment is first acquired. For example, a sound acquisition device similar to a microphone is used to acquire the current environmental noise, and the sound acquisition device may be integrated inside the terminal or externally connected to the terminal, which is not limited herein and is specifically determined according to actual needs. The ambient noise may be acquired over a period of time, such as 10S of ambient noise in the current environment. After the current environmental noise is acquired, processing the acquired environmental noise by adopting a sharpness calculation formula:
computing ambient noise versus sharpness, where k20.11 is a weighting factor,
z is the number of psychoacoustic critical bands; n' (z) is the characteristic loudness function.
Obtaining a sharpness curve corresponding to the environmental noise, analyzing the sharpness curve, and if a certain value exists in a plurality of values corresponding to the sharpness curve and is greater than or equal to a preset sharpness threshold (which can be set according to actual needs, for example, 1.0), indicating that the current environment is not suitable for playing, feeding back a warning message, for example, displaying a text "currently not suitable for playing audio" in a terminal display area, or making a sound alarm, or flashing lights, and the like, without limitation.
In the embodiment, the environmental noise collected in the preset time period is analyzed to obtain a sharpness curve corresponding to the environmental noise, whether a certain value in a plurality of values corresponding to the sharpness curve is larger than a preset sharpness threshold value is detected, if so, the current environment is fed back to be unsuitable for playing, the environmental noise can be scientifically analyzed, and the subsequent audio playing is guided according to the analysis result.
Further, in an alternative embodiment of the present invention, step S10 is followed by:
and if the current environment is not suitable for playing the audio, feeding back warning information.
In this embodiment, when the current environment is not suitable for playing the audio, the warning information may be fed back by displaying a text "currently not suitable for playing the audio" in the terminal display area, or sounding an alarm, or flashing a light, etc., which is not limited herein.
In this embodiment, by analyzing the environmental noise collected within the preset time period, if the analysis result shows that the current environment is not suitable for playing the audio, the warning information is fed back. Scientifically analyzing the influence degree of environmental noise existing in the current environment on the played audio, feeding back warning information when the influence degree is large, and accurately guiding the subsequent audio playing according to the scientific analysis of data.
Referring to fig. 2, fig. 2 is a detailed flowchart of step S20 in fig. 1.
In one embodiment, step S20 includes;
step S201, if the current environment is suitable for playing audio, acquiring the identity information of the current user;
step S202, obtaining a history playing record corresponding to the identity information, calling and playing the audio information to be played according to the history playing record, and obtaining a playing standard corresponding to the audio information to be played.
In this embodiment, by analyzing the environmental noise collected within the preset time period, if the analysis result shows that the current environment is suitable for playing the audio, the identity information of the current user, for example, the identity information (for example, an account number, a password, fingerprint information, and the like) input by the user when the audio playing software is started, is obtained. Obtaining a corresponding historical play record (for example, a historical time node for playing a certain article/song audio) according to the identity information of the user, obtaining a play time node of the current audio to be played (for example, if the historical play record of a segment of audio is 15 minutes and 25 seconds, the play start time point of the audio to be played is 15 minutes and 25 seconds), playing the audio to be played, and obtaining a play standard corresponding to the audio information to be played. In this embodiment, the playing criteria include upper and lower limits corresponding to a standard characteristic loudness curve when the current audio to be played is played in a noise-free state (for example, upper and lower limits corresponding to a standard characteristic loudness curve when the current audio to be played is played in a quiet environment such as a sound studio).
In the embodiment, only when the current environment is suitable for playing the audio, the audio playing is automatically started, so that the auditory sense of the user in the audio playing process is improved, and the user experience is increased.
Further, in an embodiment of the present invention, the playing criteria include: and the standard characteristic loudness curve corresponding to the audio to be played.
In an embodiment, the playing criteria include upper and lower limits corresponding to a standard characteristic loudness curve when the current audio to be played is played in a noise-free state (for example, upper and lower limits corresponding to a standard characteristic loudness curve when the current audio to be played is played in a quiet environment such as a sound studio).
In this embodiment, according to a playing standard (including a standard characteristic loudness curve when the current audio to be played is played in a noise-free state (where the playing environment is quite), the audio playing volume is guided to be adaptively adjusted by a user, so that the auditory sensation of the user in the audio playing process is improved, and the user experience is increased.
Further, in an embodiment of the present invention, step S40 includes;
and when the fact that the playing effect loudness curve exceeds the upper limit corresponding to the playing standard is detected, feeding back a volume reduction prompt to prompt a user to reduce the playing volume.
In this embodiment, the playing standard corresponding range is an upper limit and a lower limit corresponding to a standard characteristic loudness curve when the currently played audio is played in a noise-free state, and if it is detected that the playing effect loudness curve exceeds the playing standard corresponding range, it indicates that the loudness corresponding to the currently played audio is inappropriate, prompt information is fed back, such as a text prompt (prompting a user to reduce or increase the volume), and a light prompt (the light with color 1 represents reducing the volume, and the light with color 2 represents increasing the volume). For example, when it is detected that the playback effect loudness curve exceeds the upper limit corresponding to the playback standard, which indicates that the loudness corresponding to the playback audio may be relatively large at this time, the user is prompted to decrease the playback volume.
In this embodiment, according to a playing standard (including a standard characteristic loudness curve when the current audio to be played is played in a noise-free state (where the playing environment is quite), the audio playing volume is guided to be adaptively adjusted by a user, so that the auditory sensation of the user in the audio playing process is improved, and the user experience is increased.
Further, in another optional embodiment of the present invention, step S40 further includes:
and when the fact that the playing effect loudness curve exceeds the lower limit corresponding to the playing standard is detected, feeding back a volume increasing prompt to prompt a user to increase the playing volume.
In this embodiment, the playing standard corresponding range is an upper limit and a lower limit corresponding to a standard characteristic loudness curve when the currently played audio is played in a noise-free state, and if it is detected that the playing effect loudness curve exceeds the playing standard corresponding range, it indicates that the loudness corresponding to the currently played audio is inappropriate, prompt information is fed back, such as a text prompt (prompting a user to reduce or increase the volume), and a light prompt (the light with color 1 represents reducing the volume, and the light with color 2 represents increasing the volume). For example, when it is detected that the playback effect loudness curve exceeds the lower limit corresponding to the playback standard, which indicates that the corresponding loudness of the playback audio may be smaller at this time, the user is prompted to increase the playback volume.
In this embodiment, according to a playing standard (including a standard characteristic loudness curve when the current audio to be played is played in a noise-free state (where the playing environment is quite), the audio playing volume is guided to be adaptively adjusted by a user, so that the auditory sensation of the user in the audio playing process is improved, and the user experience is increased.
As shown in fig. 3, fig. 3 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention.
The terminal of the embodiment of the invention can be a PC, or can be a terminal device such as a smart phone, a tablet computer, an MP3(Moving Picture Experts Group Audio Layer III, motion Picture Experts compression standard Audio Layer 3) player, an MP4(Moving Picture Experts Group Audio Layer IV, motion Picture Experts compression standard Audio Layer 3) player, a portable computer and the like.
As shown in fig. 1, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Optionally, the terminal may further include a camera, a Radio Frequency (RF) circuit, a sensor, an audio circuit, a WiFi module, and the like. Such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that may adjust the brightness of the display screen according to the brightness of ambient light, and a proximity sensor that may turn off the display screen and/or the backlight when the mobile terminal is moved to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), detect the magnitude and direction of gravity when the mobile terminal is stationary, and can be used for applications (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer and tapping) and the like for recognizing the attitude of the mobile terminal; of course, the mobile terminal may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which are not described herein again.
Those skilled in the art will appreciate that the terminal structure shown in fig. 3 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 3, a memory 1005, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and an audio playing program.
In the terminal shown in fig. 3, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to call the audio playing program stored in the memory 1005 and perform the following operations:
detecting whether the current environment is suitable for playing audio;
in this embodiment, whether the current environment plays audio or not is detected, and the environmental noise in the current environment is first acquired. For example, a sound acquisition device similar to a microphone is used to acquire the current environmental noise, and the sound acquisition device may be integrated inside the terminal or externally connected to the terminal, which is not limited herein and is specifically determined according to actual needs. The ambient noise may be acquired over a period of time, such as 10S of ambient noise in the current environment. After the current environmental noise is acquired, the acquired environmental noise is processed, for example, audio processing software is built in the terminal, and the characteristic frequency band loudness curve and the noise spectrum corresponding to the environmental noise are obtained by processing the environmental noise audio. Analyzing a characteristic frequency band loudness curve, calculating the proportion of duration corresponding to a part of the characteristic frequency band loudness curve, the loudness of which exceeds a preset loudness threshold (the value can be manually set according to needs, for example, set to 50 square), in the sampling duration (namely, 10S mentioned above), judging whether the proportion exceeds a preset proportion (can be manually set according to needs, for example, set to 10%), and if the proportion does not exceed the preset proportion, indicating that the current environment is suitable for playing audio; if the proportion is greater than or equal to the preset proportion, it indicates that the current environment is not suitable for playing the audio, and then a warning message is fed back, for example, a text "currently not suitable for playing the audio" is displayed in a terminal display area, or a sound alarm is issued, or a light is flashed, and the like, which is not limited herein.
In another alternative embodiment of the invention, the sharpness calculation formula is used:
computing ambient noise versus sharpness, where k20.11 is a weighting factor,
z is the number of psychoacoustic critical bands; n' (z) is the characteristic loudness function.
Obtaining a sharpness curve corresponding to the environmental noise, analyzing the sharpness curve, and if a certain value exists in a plurality of values corresponding to the sharpness curve and is greater than or equal to a preset sharpness threshold (which can be set according to actual needs, for example, 1.0), indicating that the current environment is not suitable for playing, feeding back a warning message, for example, displaying a text "currently not suitable for playing audio" in a terminal display area, or making a sound alarm, or flashing lights, and the like, without limitation.
If the current environment is suitable for playing the audio, calling and playing the audio information to be played according to the historical playing record, and acquiring a playing standard corresponding to the audio information to be played;
in an embodiment of the present invention, when the current environment is suitable for playing an audio, a historical playing record of the current user (for example, a historical time node for playing an article/song audio) is obtained according to the identity information of the current user, a playing time node of the current audio to be played is obtained according to the historical playing record (for example, a historical playing record of a segment of audio is 15 minutes and 25 seconds, and a playing start time point of the audio to be played is 15 minutes and 25 seconds), the audio to be played is played, and a playing standard corresponding to the audio information to be played is obtained at the same time. In this embodiment, the playing criteria include upper and lower limits corresponding to a standard characteristic loudness curve when the current audio to be played is played in a noise-free state (for example, upper and lower limits corresponding to a standard characteristic loudness curve when the current audio to be played is played in a quiet environment such as a sound studio).
Denoising the loudness curve corresponding to the currently played audio to obtain a playing effect loudness curve corresponding to the currently played audio;
in this embodiment, the noise removal processing on the loudness curve corresponding to the currently played audio may be performed through audio noise removal software (e.g., speex, etc.) or a noise removal algorithm preset in the terminal, so as to obtain a playing effect loudness curve corresponding to the currently played audio.
And when the fact that the playing effect loudness curve exceeds the range corresponding to the playing standard is detected, feeding back prompt information for prompting a user to adjust the playing volume.
In this embodiment, the playing standard corresponding range is an upper limit and a lower limit corresponding to a standard characteristic loudness curve when the currently played audio is played in a noise-free state, and if it is detected that the playing effect loudness curve exceeds the playing standard corresponding range, it indicates that the loudness corresponding to the currently played audio is inappropriate, prompt information is fed back, such as a text prompt (prompting a user to reduce or increase the volume), and a light prompt (the light with color 1 represents reducing the volume, and the light with color 2 represents increasing the volume). For example, when it is detected that the playback effect loudness curve exceeds the upper limit corresponding to the playback standard, the user is prompted to decrease the playback volume, when it is detected that the playback effect loudness curve exceeds the lower limit corresponding to the playback standard, the user is prompted to increase the playback volume, when it is detected that the playback effect loudness curve exceeds both the upper limit corresponding to the playback standard and the lower limit corresponding to the playback standard, which indicates that the playback effect is not good at this time, the playback is stopped, and the process returns to step S10.
In this embodiment, before the audio to be played is played, whether the current environment is suitable for playing the audio is detected, if the current environment is suitable for playing the audio, the audio to be played is called and played, a loudness curve corresponding to the audio to be played is subjected to de-noising processing, so as to obtain a corresponding playing effect loudness curve, and when it is detected that the playing effect loudness curve exceeds a corresponding range of a playing standard corresponding to the audio to be played, prompt information is fed back to prompt a user to adjust the playing volume. By the method and the device, the playing volume is scientifically and dynamically adjusted according to the influence of the environmental noise on the playing audio, so that the loudness felt by human ears is in a proper degree when the audio is played.
Further, the processor 1001 may call the audio playing program stored in the memory 1005, and further perform the following operations:
acquiring environmental noise acquired by a sound acquisition device within a preset time period, and acquiring a characteristic frequency band loudness curve corresponding to the environmental noise according to the environmental noise;
acquiring the total duration corresponding to the part, which is greater than a preset loudness threshold value, in the characteristic frequency band loudness curve according to the characteristic frequency band loudness curve;
detecting whether the ratio of the total duration in the preset time period is greater than a preset ratio threshold value or not;
and if the proportion of the total duration in the preset time period is greater than a preset proportion threshold value, the current environment is not suitable for playing the audio, otherwise, the current environment is suitable for playing the audio.
In this embodiment, whether the current environment plays audio or not is detected, and the environmental noise in the current environment is first acquired. For example, a sound acquisition device similar to a microphone is used to acquire the current environmental noise, and the sound acquisition device may be integrated inside the terminal or externally connected to the terminal, which is not limited herein and is specifically determined according to actual needs. The ambient noise may be acquired over a period of time, such as 10S of ambient noise in the current environment. After the current environmental noise is acquired, the acquired environmental noise is processed, for example, audio processing software is built in the terminal, and the characteristic frequency band loudness curve and the noise spectrum corresponding to the environmental noise are obtained by processing the environmental noise audio. Analyzing a characteristic frequency band loudness curve, calculating the proportion of duration corresponding to a part of the characteristic frequency band loudness curve, the loudness of which exceeds a preset loudness threshold (the value can be manually set according to needs, for example, set to 50 square), in a preset time period (namely, 10S mentioned above), judging whether the proportion exceeds a preset proportion (can be manually set according to needs, for example, set to 10%), and if the proportion does not exceed the preset proportion, indicating that the current environment is suitable for playing audio; if the proportion is greater than or equal to the preset proportion, it indicates that the current environment is not suitable for playing the audio, and then a warning message is fed back, for example, a text "currently not suitable for playing the audio" is displayed in a terminal display area, or a sound alarm is issued, or a light is flashed, and the like, which is not limited herein.
In the embodiment, whether the current environment is suitable for playing is judged by analyzing the environmental noise collected in the preset time period and according to the proportion of the total duration corresponding to the part, which is greater than the preset loudness threshold value, of the characteristic frequency band loudness curve corresponding to the environmental noise in the preset time period, so that the environmental noise can be scientifically analyzed, and the subsequent audio playing is guided according to the analysis result.
Further, the processor 1001 may call the audio playing program stored in the memory 1005, and further perform the following operations:
acquiring environmental noise acquired by a sound acquisition device within a preset time period, and acquiring a sharpness curve corresponding to the environmental noise according to the environmental noise;
detecting whether the corresponding sharpness value of the sharpness curve is larger than a preset sharpness threshold value or not;
if the sharpness value corresponding to the sharpness curve is larger than a preset sharpness threshold value, the current environment is not suitable for playing the audio, otherwise, the current environment is suitable for playing the audio.
In this embodiment, whether the current environment plays audio or not is detected, and the environmental noise in the current environment is first acquired. For example, a sound acquisition device similar to a microphone is used to acquire the current environmental noise, and the sound acquisition device may be integrated inside the terminal or externally connected to the terminal, which is not limited herein and is specifically determined according to actual needs. The ambient noise may be acquired over a period of time, such as 10S of ambient noise in the current environment. After the current environmental noise is acquired, processing the acquired environmental noise by adopting a sharpness calculation formula:
in another alternative embodiment of the invention, the sharpness calculation formula is used:
computing ambient noise versus sharpness, where k20.11 is a weighting factor,
z is the number of psychoacoustic critical bands; n' (z) is the characteristic loudness function.
Obtaining a sharpness curve corresponding to the environmental noise, analyzing the sharpness curve, and if a certain value exists in a plurality of values corresponding to the sharpness curve and is greater than or equal to a preset sharpness threshold (which can be set according to actual needs, for example, 1.0), indicating that the current environment is not suitable for playing, feeding back a warning message, for example, displaying a text "currently not suitable for playing audio" in a terminal display area, or making a sound alarm, or flashing lights, and the like, without limitation.
In the embodiment, the environmental noise collected in the preset time period is analyzed to obtain a sharpness curve corresponding to the environmental noise, whether a certain value in a plurality of values corresponding to the sharpness curve is larger than a preset sharpness threshold value is detected, if so, the current environment is fed back to be unsuitable for playing, the environmental noise can be scientifically analyzed, and the subsequent audio playing is guided according to the analysis result.
Further, the processor 1001 may call the audio playing program stored in the memory 1005, and further perform the following operations:
and if the current environment is not suitable for playing the audio, feeding back warning information.
In this embodiment, when the current environment is not suitable for playing the audio, the warning information may be fed back by displaying a text "currently not suitable for playing the audio" in the terminal display area, or sounding an alarm, or flashing a light, etc., which is not limited herein.
In this embodiment, by analyzing the environmental noise collected within the preset time period, if the analysis result shows that the current environment is not suitable for playing the audio, the warning information is fed back. Scientifically analyzing the influence degree of environmental noise existing in the current environment on the played audio, feeding back warning information when the influence degree is large, and accurately guiding the subsequent audio playing according to the scientific analysis of data.
Further, the processor 1001 may call the audio playing program stored in the memory 1005, and further perform the following operations:
if the current environment is suitable for playing the audio, acquiring the identity information of the current user;
and acquiring a historical play record corresponding to the identity information, calling and playing the audio information to be played according to the historical play record, and acquiring a play standard corresponding to the audio information to be played.
In this embodiment, by analyzing the environmental noise collected within the preset time period, if the analysis result shows that the current environment is suitable for playing the audio, the identity information of the current user, for example, the identity information (for example, an account number, a password, fingerprint information, and the like) input by the user when the audio playing software is started, is obtained. Obtaining a corresponding historical play record (for example, a historical time node for playing a certain article/song audio) according to the identity information of the user, obtaining a play time node of the current audio to be played (for example, if the historical play record of a segment of audio is 15 minutes and 25 seconds, the play start time point of the audio to be played is 15 minutes and 25 seconds), playing the audio to be played, and obtaining a play standard corresponding to the audio information to be played. In this embodiment, the playing criteria include upper and lower limits corresponding to a standard characteristic loudness curve when the current audio to be played is played in a noise-free state (for example, upper and lower limits corresponding to a standard characteristic loudness curve when the current audio to be played is played in a quiet environment such as a sound studio).
In the embodiment, only when the current environment is suitable for playing the audio, the audio playing is automatically started, so that the auditory sense of the user in the audio playing process is improved, and the user experience is increased.
Further, the processor 1001 may call the audio playing program stored in the memory 1005, and further perform the following operations:
and acquiring a standard characteristic loudness curve corresponding to the audio to be played.
In an embodiment, the playing criteria include upper and lower limits corresponding to a standard characteristic loudness curve when the current audio to be played is played in a noise-free state (for example, upper and lower limits corresponding to a standard characteristic loudness curve when the current audio to be played is played in a quiet environment such as a sound studio).
In this embodiment, according to a playing standard (including a standard characteristic loudness curve when the current audio to be played is played in a noise-free state (where the playing environment is quite), the audio playing volume is guided to be adaptively adjusted by a user, so that the auditory sensation of the user in the audio playing process is improved, and the user experience is increased.
Further, the processor 1001 may call the audio playing program stored in the memory 1005, and further perform the following operations:
and when the fact that the playing effect loudness curve exceeds the upper limit corresponding to the playing standard is detected, feeding back a volume reduction prompt to prompt a user to reduce the playing volume.
In this embodiment, the playing standard corresponding range is an upper limit and a lower limit corresponding to a standard characteristic loudness curve when the currently played audio is played in a noise-free state, and if it is detected that the playing effect loudness curve exceeds the playing standard corresponding range, it indicates that the loudness corresponding to the currently played audio is inappropriate, prompt information is fed back, such as a text prompt (prompting a user to reduce or increase the volume), and a light prompt (the light with color 1 represents reducing the volume, and the light with color 2 represents increasing the volume). For example, when it is detected that the playback effect loudness curve exceeds the upper limit corresponding to the playback standard, which indicates that the loudness corresponding to the playback audio may be relatively large at this time, the user is prompted to decrease the playback volume.
In this embodiment, according to a playing standard (including a standard characteristic loudness curve when the current audio to be played is played in a noise-free state (where the playing environment is quite), the audio playing volume is guided to be adaptively adjusted by a user, so that the auditory sensation of the user in the audio playing process is improved, and the user experience is increased.
Further, the processor 1001 may call the audio playing program stored in the memory 1005, and further perform the following operations:
and when the fact that the playing effect loudness curve exceeds the lower limit corresponding to the playing standard is detected, feeding back a volume increasing prompt to prompt a user to increase the playing volume.
In this embodiment, the playing standard corresponding range is an upper limit and a lower limit corresponding to a standard characteristic loudness curve when the currently played audio is played in a noise-free state, and if it is detected that the playing effect loudness curve exceeds the playing standard corresponding range, it indicates that the loudness corresponding to the currently played audio is inappropriate, prompt information is fed back, such as a text prompt (prompting a user to reduce or increase the volume), and a light prompt (the light with color 1 represents reducing the volume, and the light with color 2 represents increasing the volume). For example, when it is detected that the playback effect loudness curve exceeds the lower limit corresponding to the playback standard, which indicates that the corresponding loudness of the playback audio may be smaller at this time, the user is prompted to increase the playback volume.
In this embodiment, according to a playing standard (including a standard characteristic loudness curve when the current audio to be played is played in a noise-free state (where the playing environment is quite), the audio playing volume is guided to be adaptively adjusted by a user, so that the auditory sensation of the user in the audio playing process is improved, and the user experience is increased.
In addition, an embodiment of the present invention further provides a computer-readable storage medium, where an audio playing program is stored on the computer-readable storage medium, and when the audio playing program is executed by a processor, the audio playing program implements the steps of the audio playing method as described above.
The specific embodiment of the computer-readable storage medium of the present invention is substantially the same as the embodiments of the audio playing method, and is not repeated herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. An audio playing method, characterized in that the audio playing method comprises:
acquiring environmental noise acquired by a sound acquisition device within a preset time period;
acquiring a characteristic frequency band loudness curve corresponding to the environmental noise according to the environmental noise;
acquiring the total duration corresponding to the part, which is greater than a preset loudness threshold value, in the characteristic frequency band loudness curve according to the characteristic frequency band loudness curve;
detecting whether the ratio of the total duration in the preset time period is greater than a preset ratio threshold value or not;
if the proportion of the total duration in the preset time period is greater than a preset proportion threshold value, the current environment is not suitable for playing the audio, otherwise, the current environment is suitable for playing the audio;
if the current environment is suitable for playing the audio, calling and playing the audio information to be played according to the historical playing record, and acquiring a playing standard corresponding to the audio information to be played;
denoising the loudness curve corresponding to the currently played audio to obtain a playing effect loudness curve corresponding to the currently played audio;
and when the fact that the playing effect loudness curve exceeds the range corresponding to the playing standard is detected, feeding back prompt information for prompting a user to adjust the playing volume.
2. The audio playing method according to claim 1, wherein after acquiring the environmental noise collected by the sound collection device within the preset time period, the method further comprises:
acquiring a sharpness curve corresponding to the environmental noise according to the environmental noise;
detecting whether the corresponding sharpness value of the sharpness curve is larger than a preset sharpness threshold value or not;
if the sharpness value corresponding to the sharpness curve is larger than a preset sharpness threshold value, the current environment is not suitable for playing the audio, otherwise, the current environment is suitable for playing the audio.
3. The audio playback method of claim 1, wherein said detecting whether the current environment is suitable for playing back audio comprises:
and if the current environment is not suitable for playing the audio, feeding back warning information.
4. The audio playing method according to claim 1, wherein if the current environment is suitable for playing audio, retrieving and playing audio information to be played according to a history playing record, and obtaining the playing standard corresponding to the audio information to be played comprises:
if the current environment is suitable for playing the audio, acquiring the identity information of the current user;
and acquiring a historical play record corresponding to the identity information, calling and playing the audio information to be played according to the historical play record, and acquiring a play standard corresponding to the audio information to be played.
5. The audio playback method of claim 4, wherein the playback criteria include:
and the standard characteristic loudness curve corresponding to the audio to be played.
6. The audio playing method of claim 1, wherein the feeding back a prompt message for prompting a user to adjust the playing volume when the playing loudness curve is detected to be beyond the range corresponding to the playing standard comprises:
and when the fact that the playing effect loudness curve exceeds the upper limit corresponding to the playing standard is detected, feeding back a volume reduction prompt to prompt a user to reduce the playing volume.
7. The audio playing method of claim 1, wherein the feeding back a prompt message for prompting a user to adjust the playing volume when the playing loudness curve is detected to be beyond the range corresponding to the playing criterion further comprises:
and when the fact that the playing effect loudness curve exceeds the lower limit corresponding to the playing standard is detected, feeding back a volume increasing prompt to prompt a user to increase the playing volume.
8. An audio playback terminal, comprising: memory, processor and an audio playback program stored on the memory and executable on the processor, which audio playback program, when executed by the processor, carries out the steps of the audio playback method as claimed in any one of claims 1 to 7.
9. A computer-readable storage medium, having stored thereon an audio playback program which, when executed by a processor, implements the steps of the audio playback method according to any one of claims 1 to 7.
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| CN201710323857.0A CN107247572B (en) | 2017-05-08 | 2017-05-08 | Audio playing method, terminal and computer readable storage medium |
| PCT/CN2017/094934 WO2018205423A1 (en) | 2017-05-08 | 2017-07-28 | Method and terminal for playing audio, and computer-readable storage medium |
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| CN108196820B (en) * | 2018-01-31 | 2019-10-18 | 百度在线网络技术（北京）有限公司 | Method and apparatus for adjusting play parameter |
| CN108418961B (en) * | 2018-02-13 | 2021-07-30 | 维沃移动通信有限公司 | Audio playing method and mobile terminal |
| CN110832830B (en) * | 2018-03-22 | 2021-07-09 | 华为技术有限公司 | Volume adjusting method and electronic equipment |
| CN108647005A (en) * | 2018-05-15 | 2018-10-12 | 努比亚技术有限公司 | Audio frequency playing method, mobile terminal and computer readable storage medium |
| CN109511037B (en) * | 2018-12-19 | 2023-05-19 | 努比亚技术有限公司 | Earphone volume adjusting method and device and computer readable storage medium |
| CN109658942B (en) * | 2018-12-27 | 2021-04-30 | 腾讯音乐娱乐科技（深圳）有限公司 | Audio data processing method and device and related equipment |
| CN110928518B (en) * | 2019-11-26 | 2020-12-25 | 北京达佳互联信息技术有限公司 | Audio data processing method and device, electronic equipment and storage medium |
| CN110809219B (en) * | 2019-11-26 | 2021-06-01 | 广州酷狗计算机科技有限公司 | Method, device and equipment for playing audio and storage medium |
| CN113329315B (en) * | 2021-05-24 | 2022-11-11 | 歌尔股份有限公司 | Detection method, device and equipment of audio playing equipment and storage medium |
| CN113757928A (en) * | 2021-08-02 | 2021-12-07 | 珠海格力电器股份有限公司 | Voice broadcast volume control method and device for voice air conditioner and voice air conditioner |
| CN114900766A (en) * | 2022-04-19 | 2022-08-12 | 合肥龙旗智能科技有限公司 | Volume adjusting method, volume adjusting device and computer readable storage medium |
| CN117459864B (en) * | 2023-10-25 | 2024-04-05 | 广州市杰泰电子科技有限公司 | Wireless microphone system capable of automatically adjusting transmitting power |
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| US8103008B2 (en) * | 2007-04-26 | 2012-01-24 | Microsoft Corporation | Loudness-based compensation for background noise |
| TWI487388B (en) * | 2010-08-11 | 2015-06-01 | Wistron Corp | A volume control method and a electric device having automatic volume adjustment function |
| CN102610232B (en) * | 2012-01-10 | 2013-06-19 | 天津大学 | Method for adjusting self-adaptive audio sensing loudness |
| CN104010147B (en) * | 2014-04-29 | 2017-11-07 | 京东方科技集团股份有限公司 | Automatically adjust the method and audio playing apparatus of audio frequency broadcast system volume |
| CN106126163A (en) * | 2016-06-16 | 2016-11-16 | 广东欧珀移动通信有限公司 | A kind of method adjusting audio and terminal |
| CN106331338A (en) * | 2016-08-22 | 2017-01-11 | 北京小米移动软件有限公司 | Volume adjusting method and device |
| CN106528036B (en) * | 2016-10-09 | 2020-02-14 | 腾讯科技（深圳）有限公司 | Volume adjusting method and device |
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