multiple audio channels
Streams should be able to encode audio into separate audio channels, so that users can independently mix/select audio for each channel. For example, one channel could be music, another could be the streamer's voice, and another for the game/application's audio. In this example, if you were already playing music that you wanted to listen to, you could disable the streamer's music. Or, if you have trouble hearing the streamer's voice, you could turn that up. Or, if you don't want to hear the streamer or music, you could mute them and just listen to the game. I think it would also have a secondary benefit that you could independently remove audio channels in cases of copyright violation, so that the rest of the vod is still good even if there happened to be flagged music on one channel.

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Arpanzo commented
I want to add a way for the viewer to manage the various audio tracks, each viewer can customize it as he prefers, in order to hear everything well
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Vandanuru commented
Integrate the microphone and background music of a streamer as two distinct input/output channels that can enable viewers to individually adjust the volume levels of each channel according to their preferences. By providing this feature, viewers who enjoy higher background music levels can select accordingly, while others who prefer no background music at all may mute the background music volume. This implementation can result in increased satisfaction among viewers, and alleviate the need for the streamer to constantly adjust background music levels, thereby increasing overall efficiency.
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Vrexia commented
I stream with community sound effects using bot commands. Some people like these, some people don't. I have them set to channel 6 and do not save them to my VODs. I would like my viewers to have the ability to mute on a channel by channel basis on the live stream as well, so everyone can have the best of all worlds.
We can already stream content in this manner, please allow viewers to also control the volume of the different channels on their end.
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SunnyGoesBrrr commented
A streamer has the possibility to set his microphone and his music to 2 audio tracks as is already done, but in the stream itself you only have the option of making the entire stream loud or quiet, a good option here would be to play the music separately turn it down OR just want to listen to the music and turn the streamer down.
example:
You set your Spotify playlist (or local music) & your microphone in OBS. The viewer on Twitch now has another speaker icon when hovering over the speaker icon with the mouse. If he makes the first loudspeaker symbol quiet, only the microphone of the streamer (& potentially the game sound or something) is turned down but the separate music remains loud. The same with the second loudspeaker symbol, only the music is turned down and the streamer remains loud. Of course, if the viewer presses the loudspeaker symbol, both will continue to be muted. The advantage of this would be that the viewer can listen to his music himself and is not "forced" to listen to the music from the streamer.
Example of how it could look like in a stream: https://imgur.com/a/phSdWuI
(not me but i have permission to use this scene/picture, i just edited the second volume thing) (ps: yes ik that the last button is from a plugin and can be ignored.. xD)Thanks for reading
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VDV_JakeTheDog commented
Love the idea, has Twitch moved forward with it since it being mentioned here for five and a half years?
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AmigaLive commented
When can we see this available?
This actually describes the feature I need!This was requested initially at Nov 5, 2016
but the feature is already half way there since we can have VOD tracks already...
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Playaveli commented
Great idea!
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AmigaLive commented
Option for viewers to be able to select to view the live stream with only the VOD track layers configured previously by the streamer.
The VOD track can already be adjusted in OBS by the streamer for the VOD.
We need this same feature but adjusted for a near real-time playback.
If configured properly by the streamer, viewers can select only listen to the game audio and not have to hear the streamer yelling their lungs out, Text-To-Speech, background music, alerts, etc.. -
nuvvz commented
100% agree, we need this asap. At least 2 volume options, one for background music from whatever source (you would just add a Spotify app for example) and another one for the rest of the stream audio like its now. Instead of one "speaker" to modify whole stream volume we would have additional "speaker" to adjust music volume and thats all. Simple as that. Life changing feature - you like the streamer but dont like his music? Just mute it and watch the stream and wait for your own song or play it on your own
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thefubsydude commented
Echoing others that have stated that the main benefit for me with this feature is that I would be able to watch a streamer while playing a game, without their game audio interrupting my game audio.
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madex111 commented
You need to create an option so that the user can
for yourself, turn off the music that the streamer listens to -
alcoholicherb commented
Please add a feature that allows the viewer to mute the chosen music by streamer/audience. I understand the concept of taking bits or donos for song requests, but it ruins the stream for a lot of people. I also understand the intention of a streamer personalizing their community/stream with their own music. However, we don't require a DJ whilst viewing most content on twitch. Thank You.
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IanSzot commented
This would be super easy to implement as the RTMP protocol that Twitch uses already supports multiple audio channels. But it would also be more expensive for Twitch to transcode/distribute the additional audio channels. I'd love to see this feature for a few more reasons:
1. Surround sound (would be even cooler if Twitch did the downmix from surround to stereo)
2. Multiple languages. You could watch one stream and choose which language you want to watch, would be nice for audio description for vision impaired viewers too. -
walnuts84 commented
I like to play games while watching, but I often have to stop as the audio interrupts my game. If I could choose to mix it differently, that would be awesome, nearly as good as having a streaming service on another screen/tv while playing games
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PhantomMethos commented
Allow viewers to listen in VOD audio mode during a livestream. Let the viewer toggle off the 2nd audio channel that has music.
I watch a streamer that has a lot of music on during his stream, but he has it set so the music isn't recorded in the VODs. Sometimes I would like to be able to watch the stream live without the music (like in the VODs). That way it is less distracting if I'm trying to multi-task or I can play my own music and still watch. Please provide the option to allow me as a viewer the option to toggle into VOD audio mode, or toggle off/on individual audio channels when multiple channels are provided by the streamer for a live stream.
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noggieB commented
Yes please!
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leenleonhart commented
Completely agree. If I want to listen to my own music while watching twitch I can't because streamers have their music :/
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leenleonhart commented
Completely agree. Tbh I don't even see much sense in being forced to listen somebody else's music ^^
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krux702 commented
100% this. There are streamers I don't watch/subscribe to mainly because I don't want to hear their music, even though the content is something I'd be interested in.
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RollerDerbyStreamingNZ commented
We stream live amateur sports and would like to have commentary in more than on language being able to have different audio tracks for different languages would be a great help