Audio Filter EQ: Realtime Update

[bakyard]

Implementing 10 EQ audio filters works as expected when starting a media file with audio. However, when I attempt to alter any EQ Args setting during playback, it is ignored unless I disable and enable the FilterEnabled property (or stop and start the media file) which creates an undesired audio effect:

Main.ConfigInternal.Audio.Filters[indexOfBands+1].Args = "frequency="+ EQSetting.Frequency+":width="+ EQSetting.Width+":width_type=h:gain=" + EQSetting.Gain;
Main.ConfigInternal.Audio.FiltersEnabled = false;
Main.ConfigInternal.Audio.FiltersEnabled = true;

Is there a way to update only the changed EQ Args during playback?

[SuRGeoNix]

This should be possible with Player.AudioDecoder.UpdateFilter

[vzsoft]

Hello

The UpdateFilter method is not working for me, did I use it correctly?

Add Filter:

            config.Audio.FiltersEnabled = true;
            config.Audio.Filters = new List<Filter>();

            for (int i = 0; i < EQData.Bands.Count; i++)
            {
                var band = EQData.Bands[i];
                config.Audio.Filters.Add(new Filter
                {
                    Id = $"equalizerId{i}",
                    Name = $"equalizerName{i}",
                    Args = $"frequency={band.Frequency}:width={band.Width}:width_type=h:gain={band.Gain}"
                });
            }

Update Filter:
only change Args and use UpdateFilter but not work!

filter = Player.Config.Audio.Filters[0];
filter.Args = $"frequency={band.Frequency}:width={band.Width}:width_type=h:gain={band.Gain}";
Player.AudioDecoder.UpdateFilter(filter.Id, filter.Name, filter.Args);

thank you

[vzsoft]

Thank you, it worked.

problem: Audio filters are reset when change the playback position (seek) in an audio file

Player.CurTime = 5;  //remove filters!

Do I need to reapply voice filters after each seek operation?

[SuRGeoNix]

Store the values when you change them also in the Config.Audio.Filters
I might try to automate this

[vzsoft]

I also save the values in Config.Audio.Filters when I change them. But it didn't work.

filter = Player.Config.Audio.Filters[0];
var newArgs = $"frequency={band.Frequency}:width={band.Width}:width_type=h:gain={band.Gain}";
filter.Args=newArgs ;

[SuRGeoNix]

It should though https://github.com/SuRGeoNix/Flyleaf/blob/master/FlyleafLib/MediaFramework/MediaDecoder/AudioDecoder.Filters.cs#L71

Can you debug this? Do you set your updated values or the initial? Any log errors?

(Just notice that probably this is not thread safe either, could cause issues in some cases)

[vzsoft]

i am so sry, i dont set new value in newArgs. Problem solved.

filter = Player.Config.Audio.Filters[0];
var newArgs = $"frequency={band.Frequency}:width={band.Width}:width_type=h:gain={e.NewValue}"; //Fix : set new value (e.NewValue)
filter.Args=newArgs ;
Player.AudioDecoder.UpdateFilter(filters[0].Id, "gain", e.NewValue.ToString());

thank you so much