Hi there,
i'm using a Pi 3B and DAC+ and i'm struggeling with very low volume. Since this is my first experience with Linux I have no idea how to find the problem, because I don't understand all the output of my Pi. Below I just posted some data which were often requested in similar posts.
Hardware:
- Power Supply: 5.1 V, 2.5 A
- Pi 3 B
- HiFiBerry DAC+ RCA
- Speaker: 1 satellite speaker of the Trust - Soundforce 5.1 System or Sharp - CP-DV40H (Impedance = 4 Ohms, Rated Power = 75 W)
Software:
- Raspbian light, provided by Hifiberry:
pi@Testpi:~ $ uname -a
Linux Testpi 4.9.13-v7+ #974 SMP Wed Mar 1 20:09:48 GMT 2017 armv7l GNU/Linux
- output of amixer:
pi@Testpi:~ $ amixer
Simple mixer control 'DSP Program',0
Capabilities: enum
Items: 'FIR interpolation with de-emphasis' 'Low latency IIR with de-emphasis' 'High attenuation with de-emphasis' 'Fixed process flow' 'Ringing-less low latency FIR'
Item0: 'FIR interpolation with de-emphasis'
Simple mixer control 'Analogue',0
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 1
Mono:
Front Left: Playback 1 [100%] [0.00dB]
Front Right: Playback 1 [100%] [0.00dB]
Simple mixer control 'Analogue Playback Boost',0
Capabilities: volume
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: 0 - 1
Front Left: 1 [100%] [0.80dB]
Front Right: 1 [100%] [0.80dB]
Simple mixer control 'Auto Mute',0
Capabilities: pswitch
Playback channels: Front Left - Front Right
Mono:
Front Left: Playback [on]
Front Right: Playback [on]
Simple mixer control 'Auto Mute Mono',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
Simple mixer control 'Auto Mute Time Left',0
Capabilities: enum
Items: '21ms' '106ms' '213ms' '533ms' '1.07s' '2.13s' '5.33s' '10.66s'
Item0: '21ms'
Simple mixer control 'Auto Mute Time Right',0
Capabilities: enum
Items: '21ms' '106ms' '213ms' '533ms' '1.07s' '2.13s' '5.33s' '10.66s'
Item0: '21ms'
Simple mixer control 'Clock Missing Period',0
Capabilities: enum
Items: '1s' '2s' '3s' '4s' '5s' '6s' '7s' '8s'
Item0: '1s'
Simple mixer control 'Deemphasis',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
Simple mixer control 'Digital',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 207
Mono:
Front Left: Playback 207 [100%] [0.00dB] [on]
Front Right: Playback 207 [100%] [0.00dB] [on]
Simple mixer control 'Max Overclock DAC',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 40
Mono: 0 [0%]
Simple mixer control 'Max Overclock DSP',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 40
Mono: 0 [0%]
Simple mixer control 'Max Overclock PLL',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 20
Mono: 0 [0%]
Simple mixer control 'Volume Ramp Down Emergency Rate',0
Capabilities: enum
Items: '1 sample/update' '2 samples/update' '4 samples/update' 'Immediate'
Item0: '1 sample/update'
Simple mixer control 'Volume Ramp Down Emergency Step',0
Capabilities: enum
Items: '4dB/step' '2dB/step' '1dB/step' '0.5dB/step'
Item0: '4dB/step'
Simple mixer control 'Volume Ramp Down Rate',0
Capabilities: enum
Items: '1 sample/update' '2 samples/update' '4 samples/update' 'Immediate'
Item0: '1 sample/update'
Simple mixer control 'Volume Ramp Down Step',0
Capabilities: enum
Items: '4dB/step' '2dB/step' '1dB/step' '0.5dB/step'
Item0: '1dB/step'
Simple mixer control 'Volume Ramp Up Rate',0
Capabilities: enum
Items: '1 sample/update' '2 samples/update' '4 samples/update' 'Immediate'
Item0: '1 sample/update'
Simple mixer control 'Volume Ramp Up Step',0
Capabilities: enum
Items: '4dB/step' '2dB/step' '1dB/step' '0.5dB/step'
Item0: '1dB/step'
I used mplayer and mopidy for playback with the same result.
pi@Testpi:~ $ mplayer /usr/share/sounds/alsa/Front_Center.wav
MPlayer2 2.0-728-g2c378c7-4+b1 (C) 2000-2012 MPlayer Team
Cannot open file '/home/pi/.mplayer/input.conf': No such file or directory
Failed to open /home/pi/.mplayer/input.conf.
Cannot open file '/etc/mplayer/input.conf': No such file or directory
Failed to open /etc/mplayer/input.conf.
Playing /usr/share/sounds/alsa/Front_Center.wav.
Detected file format: WAV / WAVE (Waveform Audio) (libavformat)
[lavf] stream 0: audio (pcm_s16le), -aid 0
Load subtitles in /usr/share/sounds/alsa/
Selected audio codec: Uncompressed PCM [pcm]
AUDIO: 48000 Hz, 1 ch, s16le, 768.0 kbit/100.00% (ratio: 96000->96000)
AO: [pulse] Init failed: Connection refused
AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
[AO_ALSA] Unable to find simple control 'Master',0.
Video: no video
Starting playback...
A: 1.4 (01.3) of 1.4 (01.4) 0.1%
I already tried: amixer sset Digital 100%, but the volume is still low (the ticking of my clock is louder).
Does anybody have an idea, what could be the problem? Are the speakers the problem or the configuration of the mixer?
Thank you in advance
Sebastian
