The music slow down and the sound hiss.

[jrmyid]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

When i listen to music (just a track or an entire playlist), randomly the sound is hiss and/or slow down. Each track, every time. Only on my android's app, this doesn't occur on my laptop.

Expected Behavior

The sound is clear.

Steps to reproduce

1. I opened the app.
2. I choosed a track and i listened to it
3. The sound hissed and slowned down or just hissed

Operating System

Android : 5.10.157-android13-4-00003-g776d0a76f6aa-ab10208116

Spotube version

3.1.0

Installation source

F-Droid (Android)

Additional information

No response

[coyote-b]

Getting this bug too on every song. Google Pixel 6a running GrapheneOS (Android 13). I can replicate it on both wifi and LTE so I don't believe it's related to poor network connection.

[hackerb9]

Getting this bug too on every song. Google Pixel 6a running GrapheneOS (Android 13).

I also have a Pixel 6a (GrapheneOS) which exhibits this problem. It only happens after the screen has shut off for me. The peculiar scratchiness sounds to me like the player is CPU starved.

It is definitely not a bandwidth issue as it also happens with downloaded tracks.

Possibly related: #571 ( Intermittent Distorted Audio by @OfficialMuffin).

[WCooke]

I have the same issue, but only when songs are playing through the phone speakers (Pixel 6) not when playing via bluetooth (headphones or speakers)

Issue only occurs with Spotube and not with other music apps.

Android 13
Spotube v3.1.2

[hackerb9]

@WCooke Interesting. The problem occurs for me via Bluetooth (pixel buds). Are you running the stock Google OS on your Pixel 6?

@KRTirtho I've found that if I simultaneously run a background app that doesn't let the CPU idle (Jitsi Meet), Spotube doesn't garble when the screen dims. That makes me think the Pixel 6 must have an ultra-low CPU clock speed when it idles.

I am not an Android developed, but it looks like the best solution would be for Spotube to detect when idle mode starts and disable all the UI threads that are using excess CPU/GPU. https://developer.android.com/reference/android/os/PowerManager#ACTION_DEVICE_IDLE_MODE_CHANGED

Does Spotube already do this? Perhaps there's a thread being missed, like the color changing background?

Alternately, it looks like an app can request that a phone not let the CPUs go idle. It will use up the battery, but may be an easy fix. https://developer.android.com/reference/android/media/MediaPlayer#setWakeMode(android.content.Context,%20int)

[KRTirtho]

I am not an Android developed, but it looks like the best solution would be for Spotube to detect when idle mode starts and disable all the UI threads that are using excess CPU/GPU. https://developer.android.com/reference/android/os/PowerManager#ACTION_DEVICE_IDLE_MODE_CHANGED

Does Spotube already do this? Perhaps there's a thread being missed, like the color changing background?

Spotube is not supposed to manage the UI threads here. It is usually done by the flutter engine (skia/impeller) & the android embedder (basically the app lifecycle)

I am not an Android developed, but it looks like the best solution would be for Spotube to detect when idle mode starts and disable all the UI threads that are using excess CPU/GPU. https://developer.android.com/reference/android/os/PowerManager#ACTION_DEVICE_IDLE_MODE_CHANGED

And yea the PowerManager.WakeLock is already being used by Spotube through the audio_service plugin

Alternately, it looks like an app can request that a phone not let the CPUs go idle. It will use up the battery, but may be an easy fix. https://developer.android.com/reference/android/media/MediaPlayer#setWakeMode(android.content.Context,%20int)

Same as PowerManager. It's just automatically done by the MediaPlayer but Spotube uses mpv which also does this under the hood

[hackerb9]

@KRTirtho Do you know of another app I could try which uses the same libraries? I'm curious if those apps would have the same problem on a Pixel 6 with GrapheneOS.

[KRTirtho]

There's Harmonoid

[KRTirtho]

Duplicate of #571

[mustard007]

Hello! I have a pixel 6 Pro and the sound quality coming from the phone speaker is dull, without bass and with low volume.

I found another app on F-Droid/Git using Flutter called Musify. I have no problems with the sound quality coming from the phone speaker with it.

It could be a possible solution checking their code.
Thanks!!

[mustard007]

There's Harmonoid

I Also don't have the "audio from phone speaker quality bug" with this application.

Thanks!