1. “good wifi app” != “good wifi ap” 🙂 I meant the access point, not an application.

2. “Wifi direct” vs “portable hotspot”:
When you use “Wifi direct”, one of your phones is the access point / hotspot for all your connected devices. That means every device needs a good connection to this device.
If you use a dedicated portable hotspot (either another android device in “portable hotspot mode” (see faq) or a battery powered portable WiFi Router) you can place this device in the center of all your soundseeder devices and minimize the distance between them. This will improve your connection quality and might fix your sync issues.

3. SoundSeeder equalizer settings
At the moment the equalizer settings on player and speaker side are completely independent from each other.
As SoundSeeder uses the built-in equalizer of each device, the equalizer in your player device only affects the output of the player. If you want to adjust the sound on speaker side, you have to change it in the speakers equalizer settings.
I’ll have to implement my own equalizer to change that behaviour and didn’t have time for that yet.

4. Audio sources
SoundSeeder supports dlna/upnp and http streaming of audio sources. The music of a windows pc can be played by offering it as dlna stream. Youtube videos can be accessed via http.
As fas as I know JetAudio doesn’t offer any interface to access its equalized sound output to play or stream it via any third party app like soundseeder.