A sound signal processing apparatus includes: first amplifier which amplifies a sound signal, depending on an input level of the sound signal; and second amplifier which amplifies with a gain the sound signal amplified by first amplifier. Second amplifier automatically decreases the gain when a level of the sound signal is greater than an upper limit threshold, and second amplifier automatically increases the gain when the level of the sound signal is lower than the upper limit threshold and when the gain is lower than a predetermined value. When second amplifier increases the gain, second amplifier changes the gain at a first speed when a user has performed an operation to decrease the input level, and second amplifier changes the gain at a second speed lower than the first speed when the user has not performed the operation to decrease the input level.

A sound signal processing apparatus includes: first amplifier which amplifies a sound signal, depending on an input level of the sound signal; and second amplifier which amplifies with a gain the sound signal amplified by first amplifier. Second amplifier automatically decreases the gain when a level of the sound signal is greater than an upper limit threshold, and second amplifier automatically increases the gain when the level of the sound signal is lower than the upper limit threshold and when the gain is lower than a predetermined value. When second amplifier increases the gain, second amplifier changes the gain at a first speed when a user has performed an operation to decrease the input level, and second amplifier changes the gain at a second speed lower than the first speed when the user has not performed the operation to decrease the input level.

Sound equipment includes an operation element, a memory, a processor, a controller, and a display. The operation element receives a set value. The memory stores the set value. The processor performs processing by the set value of the memory. The controller executes a normal state in which the set value of the memory is updated by the set value of the operation element, and a locked state in which the set value of the memory is fixed regardless of the set value of the operation element, and, by either a first method when the set values are equal or a second method by updating the set value of the memory with the set value of the operation element, releases the locked state and shifts the locked state to the normal state. The display displays a selection screen that receives a selection of the first method or the second method.

Sound equipment includes an operation element, a memory, a processor, a controller, and a display. The operation element receives a set value. The memory stores the set value. The processor performs processing by the set value of the memory. The controller executes a normal state in which the set value of the memory is updated by the set value of the operation element, and a locked state in which the set value of the memory is fixed regardless of the set value of the operation element, and, by either a first method when the set values are equal or a second method by updating the set value of the memory with the set value of the operation element, releases the locked state and shifts the locked state to the normal state. The display displays a selection screen that receives a selection of the first method or the second method.

A remote speaker microphone with touch volume control is provided. The remote speaker microphone includes a housing; a microphone; a speaker; and an interface configured to connect the speaker and the microphone. The remote speaker microphone further includes a touch sensor configured to, in response to receiving touch input, control a volume level of the speaker from a first volume level to a lower volume level, the first volume level being one of a plurality of discrete volume levels.

An example playback device may store an active volume state variable in memory, where the active volume state variable corresponds to a current playback volume. The playback device may also store a volume limit state variable in memory, where the volume limit state variable corresponds to a playback volume limit of the playback device. The playback device may detect a command to begin playback of media from a given source and then select a startup playback volume to be one of the current playback volume and the playback volume limit based on the given source of the command to begin playback. The playback device may then play back media at the startup playback volume.

An example playback device may store an active volume state variable in memory, where the active volume state variable corresponds to a current playback volume. The playback device may also store a volume limit state variable in memory, where the volume limit state variable corresponds to a playback volume limit of the playback device. The playback device may detect a command to begin playback of media from a given source and then select a startup playback volume to be one of the current playback volume and the playback volume limit based on the given source of the command to begin playback. The playback device may then play back media at the startup playback volume.

A recorded signal representing a recorded sound generated by a sound generation source is reproduced. A type of a sound generation source of a performance sound represented by a performance signal is specified. A sound volume of the recorded signal is reduced in a case where the sound generation source of the recorded signal corresponds to the specified type of the sound generation source.

A recorded signal representing a recorded sound generated by a sound generation source is reproduced. A type of a sound generation source of a performance sound represented by a performance signal is specified. A sound volume of the recorded signal is reduced in a case where the sound generation source of the recorded signal corresponds to the specified type of the sound generation source.

Audio information of audio content being listened to by a user is received. An aspect of a listening environment of the user is identified. A volume preset, based on the audio information and the aspect of the listening environment, is determined to be available. A first volume of the audio content being listened to by the user is determined to be different from the volume preset. The first volume of the audio content is adjusted to a second volume.