TH30538B - How to adjust the response to sound automatically For enhanced message listening ability - Google Patents

Abstract

DC60 (02/04/40) Listening capability of speech received in radio receiver. has been improved by automatically adjusting the audio response according to the sound level when the sound level The insertion is high, the relative gain of high audio frequencies will increase. with a decrease in response to low frequencies. In this manner, some of the "naturalness" is selected for the High listenability caused by increased high-frequency gain. The noise level will be checked. set by volume level The audio response message is generated based on the noise level and the digital signal processor adjusts the audio response of the radio receiver based on the audio response message. the ability to hear the words received by the radio receiver love the improvement by automatically adjusting the response to the audio according to the sound level when the sound level The insertion is high, the relative gain of high audio frequencies will increase. by reducing the negative response to low frequencies. In this manner, some of the "naturalness is chosen for the Higher listening capability caused by high frequency overload increases. The volume of the tread will be checked. set by volume level The audio feedback is generated based on the interference level, and the digital signal processor adjusts the radio receiver's audio response based on the response message. continue

Claims (1)

1.Methods of dynamic modulation of the audio response of a radio receiver. The methods include: (a) Determination of noise level by random noise interference level. Using the microphone input; (b) determination of the function of the audio response according to the level of noise; And (c) modulation of the audio response of the radio receiver in accordance with the function of audio response, the lower value of the audio frequency increment is not used. In order to make the added value of The audio frequency is relative high. Without affecting the accuracy of it in any way 2. Methods set out in Clause 1 by which Procedure (b) will be performed by Access. Set of audio parameters And the selection of parameters to match the level of noise Sampled 3. Means as stated in Clause 1 which consists of The next step of Divide the received audio passive band into low frequency. And at least the high-frequency subband to define as a set of audio parameters corresponding to the range of the noise level 4. The method is specified in claim 3, where section (b ) Will be operated by access Audio Parameter Set And the selection of parameters to match the level of the random interrupted noise; 5. The method specified in claim 1, where section (c) can be performed by (d) the Adjusts the increase of the high audio frequency relative to the low audio frequency. 6.Method as stated in claim 5, where, as the noise level increases, a procedure (d) is performed by increasing the high audio frequency increment relative to the low audio frequency. The act set out in Clause 1, where Section (b) will be performed by creating 8. Methods outlined in Clause 7, which continues with the next steps prior to Section (c) of Sending a response message. The audio source goes to a digital signal processor (DSP) where the second step (c) is performed by the DSP. 9. The method specified in Clause 7 contains the next step prior to the procedure. (c) is to separate the audio response parameter from the audio response message. And replacing the audio response parameters into the processor filter Digital signal 1 0. The method described in Clause 1, where procedure (b) will be performed by adjusting the Customize the response of a given filter circuit. 1. Method of dynamic modulation of the audio response of a radio receiver. The methods include: (a) determination of the degree of noise; By sampling the level of noise interference using the microphone input; And (b) High audio frequency gain. According to the increase of the audio frequency Which is a low value according to the surrounding sound level It does not use low audio frequency increments. In order to make the increment of the corresponding maximum audio frequency Without affecting the accuracy 1 2. The method described in claim 11, where as the noise level increases, step (b) is achieved by adjusting the high audio frequency increment relative to the frequency. Audio Low 1 3. A device for dynamically modifying the audio response of a radio receiver. The device consists of - a path for determining the level of noise, consisting of a random microphone input, noise level; - A controller that generates an audio response message according to the level of noise; And - a digital signal processor (DSP) that modulates the audio response of the receiver. Radio based on audio response message Low audio frequency increments are not used in order to make the corresponding high audio frequency increments. Without affecting the accuracy of It is, in any way, 1 4. The device, as stated in Clause 13, where the controller generates an audio response message. By accessing a set of audio parameters and selecting audio parameters. And the selection of parameters corresponds to the level of random noise. Of the received audio as the least low- and high-frequency sub-bands to be defined as the audio parameters corresponding to the interpolation level range 1 6. Equipment as stated in Clause 15 at In which the control generates a message. Respond to the said audio By accessing a set of audio parameter values and selecting parameters to match the random noise level 1 7. Equipment as outlined in Clause 13, where such DSP will adjust its response. Responding to the audio of the radio receiver By adjusting the high audio frequency gain in relation to the low audio frequency 1 8. Equipment as stated in Clause 17, where the DSP modulates the audio response by increasing the high audio frequency gain in relation to Audio frequency When the volume Additional 1 9. Equipment as stated in Clause 17 at which the DSP will separate parameters. Respond to audio out of audio response message And replace the response parameter Audio enters the path of a DSP 2 0 filter. A device for dynamically changing the audio response of a radio receiver. The device includes: - A path for determining the level of noise; Consists of using the input of The microphone randomly interferes with noise level; And - a method for adjusting the increase of the audio frequency relative to the low audio frequency. According to the level of sound insertion It does not use the low audio frequency increment. In order to make Correlated high audio frequency increment value Without affecting its accuracy in any way 2 1. Equipment as stipulated in Clause 20, where the method of such adjustment Will increase the increase of the high audio frequency relative to the audio frequency. As the level of noise increases.