command line options for resampling, volume etc.,

[sureshkn]

I am running VLC to play audio CDs from Rasbperry Pi 2 using Raspian Lite. My idea is to play without volume normalization, 100% volume, no-resampling.

The command I use is.,

vlc --audio-resampler=disable --audio-replay-gain-mode=none --no-audio-time-stretch --aout alsa --alsa-audio-device=hw:1,0 cddasimple:///dev/sr0

In spite of using --audio-resampler=disable VLC always ends up using ugly-resampler. I guess resampler never gets used because input & output are the same.

core audio output debug: input 's16l' 44100 Hz Stereo frame=1 samples/4 bytes
core audio output debug: conversion: 's16l'->'s16l' 44100 Hz->44100 Hz Stereo->Stereo

I hope resampler never gets activated.

Since I don't explicitly use any filter for volume normalization I hope it is disabled.

Remaining is volume at 100%. Setting --gain=8.0 gave me distorted audio. Is there any other option to set to 100% volume ?
"volume" command in Lua prompt shows 256.

Thanks,
Suresh.

[Rémi Denis-Courmont]

The ugly resampler applies zero-hold-order. It is a no-op if the input and output rates are identical.

100% volume is achieved with "--alsa-gain 1", or leaving the volume to 100% on the GUI.

[sureshkn]

Thanks Rémi. I am running Raspbian Lite, so there is no GUI available. I have to live with command-line options only.
I have a I2S DAC and an external preamp to control to volume. So, would like as much less software processing of audio in VLC as possible.

If you have any other command line options then please let me know.