Systems and methods for reducing audio quality based on acoustic environment
The disclosed playback devices, media playback systems, and/or methods improve upon the media playback experience by selectively reducing audio quality under certain conditions. The reduction of audio quality may be based on one or more aspects of the acoustic environment, such as the number and locations of one or more users, noise levels, playback device locations relative to the acoustic environment, etc. The media playback system may monitor or periodically poll each of one or more playback devices and other devices or sensors in and around an acoustic environment to determine whether there are opportunities to reduce audio quality for one or more playback devices. This reduction in quality allows the media playback system to conserve resources in one or more aspects and, potentially, divert those resources to other aspects for purposes.
1 . A media playback system comprising:
a first playback device; and
one or more computer-readable media having instructions stored thereon that, when executed by one or more processors, cause the media playback system to perform operations comprising:
configuring the first playback device to play one or more content items at a first resolution,
monitoring an acoustic environment in which the first playback device is playing the one or more content items,
identifying at least one condition of the acoustic environment in which the first playback device is playing the one or more content items,
receiving from a user, a selection of one or more audio channels; and
after identifying the at least one condition, configuring the first playback device to play the one or more content items at a second resolution, wherein the second resolution is lower than the first resolution and wherein configuring the first playback device to play the one or more content items at the second resolution includes dropping the selected one or more audio channels from playback of the one or more content items.
2 . The media playback system of claim 1 , wherein the identified at least one condition of the acoustic environment in which the first playback device is playing the one or more content items includes a noise level beyond a predefined threshold.
3 . The media playback system of claim 2 , wherein the second resolution is based on the noise level.
4 . The media playback system of claim 2 , the operations further comprising:
determining a difference between the noise level and the predefined threshold, wherein the second resolution is based on the determined difference, wherein the first resolution is associated with a first bit depth, wherein the second resolution is associated with a second bit depth, and wherein the second bit depth is lower than the first bit depth.
5 . The media playback system of claim 1 , wherein the identified at least one condition of the acoustic environment in which the first playback device is playing the one or more content items includes an indication of whether a user is in proximity to the acoustic environment.
6 . The media playback system of claim 1 , wherein configuring the first playback device to play one or more content items at the second resolution includes reducing the dynamic range of audio data associated with the one or more content items.
7 . The media playback system of claim 1 , wherein configuring the first playback device to play one or more content items at the second resolution includes resampling audio data associated with the one or more content items.
8 . The media playback system of claim 1 , wherein the identified at least one condition of the acoustic environment in which the first playback device is playing the one or more content items includes a location of the first playback device relative to the acoustic environment.
9 . The media playback system of claim 1 , wherein configuring the first playback device to play the one or more content items at the first resolution comprises sending stereo content to the first playback device and wherein configuring the first playback device to play the one or more content items at the second resolution comprises sending mono content to the first playback device.
10 . The media playback system of claim 1 , the operations further comprising:
during synchronized playback of a first content item of the one or more content items, sending audio data, at the first resolution, to multiple playback devices, and
after identifying the at least one condition, sending audio data, at the second resolution, to the multiple playback devices.
11 . A method comprising:
configuring a first playback device to play one or more content items at a first resolution,
monitoring an acoustic environment in which the first playback device is playing the one or more content items,
identifying at least one condition of the acoustic environment in which the first playback device is playing the one or more content items,
receiving, from a user a selection of one or more audio channels; and
after identifying the at least one condition, configuring the first playback device to play the one or more content items at a second resolution, wherein the second resolution is lower than the first resolution and wherein configuring the first playback device to play the one or more content items at the second resolution includes dropping the selected one or more audio channels from playback of the one or more content items.
12 . The method of claim 11 , wherein the identified at least one condition of the acoustic environment in which the first playback device is playing the one or more content items includes a noise level beyond a predefined threshold.
13 . The method of claim 12 , wherein the second resolution is based on the noise level.
14 . The method of claim 11 , wherein the identified at least one condition of the acoustic environment in which the first playback device is playing the one or more content items includes an indication of whether a user is in proximity to the acoustic environment.
15 . The method of claim 11 , wherein configuring the first playback device to play one or more content items at the second resolution includes reducing the dynamic range of audio data associated with the one or more content items.
16 . One or more tangible, non-transitory computer-readable media storing instructions that, when executed by one or more processors of a media playback system, cause the media playback system to perform operations comprising:
configuring a first playback device to play one or more content items at a first resolution,
monitoring an acoustic environment in which the first playback device is playing the one or more content items,
identifying at least one condition of the acoustic environment in which the first playback device is playing the one or more content items, and
after identifying the at least one condition, configuring the first playback device to play the one or more content items at a second resolution, wherein the second resolution is lower than the first resolution and wherein configuring the first playback device to play the one or more content items at the second resolution includes dropping one or more audio channels from playback of the one or more content items.
17 . The one or more tangible, non-transitory computer-readable media of claim 16 , wherein the identified at least one condition of the acoustic environment in which the first playback device is playing the one or more content items includes a noise level beyond a predefined threshold.
18 . The one or more tangible, non-transitory computer-readable media of claim 17 , wherein the second resolution is based on the noise level.
19 . The one or more tangible, non-transitory computer-readable media of claim 16 , wherein the identified at least one condition of the acoustic environment in which the first playback device is playing the one or more content items includes an indication of whether a user is in proximity to the acoustic environment.
20 . The one or more tangible, non-transitory computer-readable media of claim 16 , wherein configuring the first playback device to play one or more content items at the second resolution includes reducing the dynamic range of audio data associated with the one or more content items.