Support and General Use > Audio Playback, Database and Playlists
[Solved] Clip Zip audio quality improvements
music_lover001:
Sorry about that.
For some reason, my headphones need to be > -40db with the Clip Zip (I have noticed the volume levels are up there as well with Sansa's firmware). If it isn't that loud, then the volume is too low (classical music and wide dynamic range?) and the quieter passages of the music are inaudible. Even with the more sensitive headphones, the volume is in the -35dB through -38dB range.
On a side note, I also have a Sony NWZ-E465. I can easily listen to that with the volume under half (12-13). In addition, I also have a Clip Sport, and the volume needed for the headphones is lower yet.
Once again, thank you.
Mihail Zenkov:
music_lover001:
Can you set volume to -41dB and check clicks on play/stop with latest rockbox? After that try set -40dB and check again.
music_lover001:
--- Quote from: Mihail Zenkov on January 24, 2015, 06:57:00 AM ---music_lover001:
Can you set volume to -41dB and check clicks on play/stop with latest rockbox? After that try set -40dB and check again.
--- End quote ---
After checking this out, I found at -41dB the clicks disappear, and at -40dB the clicks reappear. Interesting (Spock might say "fascinating").
Thank you again.
Mihail Zenkov:
music_lover001 was right - rockbox without patch also have this problem but clicks not so sharp.
Step to reproduce:
1. get most sensitive headphone
2. play very quiet music (pianissimo or dithering test)
3. set volume +6dB
4. press play/pause
As this player don't have de-coupling capacitors, we have great sound quality, but also pop-clicks problem when we on/off some audio parts or change settings in it.
At now, rockbox don't shutdown output stage on pause (it impossible without clicks). But it shutdown DAC clock (I2SO MCLK) and we can hear this clicks. I attach patch to change this behavior. Drawback: +2mA consume at pause.
saratoga:
Is there a click when the headphone output is muted? Maybe it would be possible to start muted and then raise the volume?
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