Hi,
I'm trying to enable HFP on pulseaudio 6.0 using oFono and bluez 5 on a new
embedded platform which doesn't support alsa yet.
In order to confirm that audio is 'played' I record it using parecord tool. -
This method worked just fine when enabled a2dp a short time ago.
After executing oFono & pulseaudio, a call is answered on the remote device- It
is seemed that the relevant profile is chosen on pulseaudio, and parecord fails
to record.
When executing 'pacmd stat' it seems that
Memory blocks allocated during the whole lifetime: 192, size: 699.9 KiB.
Is constant while pulseaudio prints to terminal the following message along the
call with relatively fixed intervals:
( 482.106| 0.013) D: [pulseaudio][modules/module-loopback.c:201
adjust_rates()] Should buffer 96 bytes, buffered at minimum 128 bytes
( 482.118| 0.012) D: [pulseaudio][modules/module-loopback.c:226
adjust_rates()] [bluez_sink.98_D6_F7_34_98_E8] Updated sampling rate to 8000 Hz.
( 482.132| 0.013) D: [pulseaudio][modules/module-loopback.c:197
adjust_rates()] Loopback overall latency is 610.13 ms + 0.00 ms + 25.00 ms =
635.13 ms
( 482.146| 0.014) D: [pulseaudio][modules/module-loopback.c:201
adjust_rates()] Should buffer 96 bytes, buffered at minimum 0 bytes
( 482.159| 0.012) D: [pulseaudio][modules/module-loopback.c:226
adjust_rates()] [bluez_sink.98_D6_F7_34_98_E8] Updated sampling rate to 8000 Hz.
( 492.134| 9.975) D: [pulseaudio][modules/module-loopback.c:197
adjust_rates()] Loopback overall latency is 610.13 ms + 8.00 ms + 0.00 ms =
618.13 ms
( 492.148| 0.013) D: [pulseaudio][modules/module-loopback.c:201
adjust_rates()] Should buffer 96 bytes, buffered at minimum 128 bytes
( 492.161| 0.012) D: [pulseaudio][modules/module-loopback.c:226
adjust_rates()] [bluez_sink.98_D6_F7_34_98_E8] Updated sampling rate to 8000 Hz.
( 492.175| 0.013) D: [pulseaudio][modules/module-loopback.c:197
adjust_rates()] Loopback overall latency is 610.13 ms + 0.00 ms + 25.00 ms =
635.13 ms
( 492.189| 0.014) D: [pulseaudio][modules/module-loopback.c:201
adjust_rates()] Should buffer 96 bytes, buffered at minimum 0 bytes
( 492.201| 0.012) D: [pulseaudio][modules/module-loopback.c:226
adjust_rates()] [bluez_sink.98_D6_F7_34_98_E8] Updated sampling rate to 8000 Hz.
( 502.176| 9.975) D: [pulseaudio][modules/module-loopback.c:197
adjust_rates()] Loopback overall latency is 610.13 ms + 8.00 ms + 0.00 ms =
618.13 ms
( 502.190| 0.013) D: [pulseaudio][modules/module-loopback.c:201
adjust_rates()] Should buffer 96 bytes, buffered at minimum 128 bytes
( 502.202| 0.012) D: [pulseaudio][modules/module-loopback.c:226
adjust_rates()] [bluez_sink.98_D6_F7_34_98_E8] Updated sampling rate to 8000 Hz.
( 502.216| 0.013) D: [pulseaudio][modules/module-loopback.c:197
adjust_rates()] Loopback overall latency is 610.13 ms + 0.00 ms + 25.00 ms =
635.13 ms
Please note:
I'm now familer with oFono at all - I simply run it as ofonod -d
Pacmd list output is attached while call is still ongoing. - there are 2
sources loaded and one sink.
Also, could someone explain why are there two source available? Nexus 4 and
Nexus 4 monitor?
How can I confirm that the audio arrives at pulseaudio? By the log I would
assume that the answer is positive, but according to 'pacmd stat' the value it
seems not.
Thanks for your help,
Eytan.
pulse@OpenWrt:/$ pacmd list
( 580.160| 7.623) I: [pulseaudio][pulsecore/client.c:78 pa_client_new()]
Created 12 "UNIX socket client"
Memory blocks currently allocated: 3, size: 5.7 KiB.
Memory blocks allocated during the whole lifetime: 192, size: 699.9 KiB.
Memory blocks imported from other processes: 0, size: 0 B.
Memory blocks exported to other processes: 0, size: 0 B.
Total sample cache size: 0 B.
Default sample spec: s16le 2ch 44100Hz
Default channel map: front-left,front-right
Default sink name: bluez_sink.98_D6_F7_34_98_E8
Default source name: bluez_source.98_D6_F7_34_98_E8
Memory blocks of type POOL: 3 allocated/192 accumulated.
Memory blocks of type POOL_EXTERNAL: 0 allocated/0 accumulated.
Memory blocks of type APPENDED: 0 allocated/0 accumulated.
Memory blocks of type USER: 0 allocated/0 accumulated.
Memory blocks of type FIXED: 0 allocated/0 accumulated.
Memory blocks of type IMPORTED: 0 allocated/0 accumulated.
22 module(s) loaded.
index: 0
name: <module-device-restore>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Automatically restore the volume/mute
state of devices"
module.version = "6.0-dirty"
index: 1
name: <module-stream-restore>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Automatically restore the
volume/mute/device state of streams"
module.version = "6.0-dirty"
index: 2
name: <module-card-restore>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Automatically restore profile of cards"
module.version = "6.0-dirty"
index: 3
name: <module-augment-properties>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Augment the property sets of streams with
additional static information"
module.version = "6.0-dirty"
index: 4
name: <module-switch-on-port-available>
argument: <>
used: -1
load once: no
properties:
index: 5
name: <module-udev-detect>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Detect available audio hardware and load
matching drivers"
module.version = "6.0-dirty"
index: 6
name: <module-bluetooth-policy>
argument: <>
used: -1
load once: yes
properties:
module.author = "Frédéric Dalleau"
module.description = "When a bluetooth sink or source is added,
load module-loopback"
module.version = "6.0-dirty"
index: 7
name: <module-bluetooth-discover>
argument: <headset=ofono>
used: -1
load once: yes
properties:
module.author = "João Paulo Rechi Vita"
module.description = "Detect available Bluetooth daemon and
load the corresponding discovery module"
module.version = "6.0-dirty"
index: 8
name: <module-bluez5-discover>
argument: <headset=ofono>
used: -1
load once: yes
properties:
module.author = "João Paulo Rechi Vita"
module.description = "Detect available BlueZ 5 Bluetooth audio
devices and load BlueZ 5 Bluetooth audio drivers"
module.version = "6.0-dirty"
index: 9
name: <module-esound-protocol-unix>
argument: <>
used: -1
load once: no
properties:
module.author = "Lennart Poettering"
module.description = "ESOUND protocol (UNIX sockets)"
module.version = "6.0-dirty"
index: 10
name: <module-native-protocol-unix>
argument: <>
used: -1
load once: no
properties:
module.author = "Lennart Poettering"
module.description = "Native protocol (UNIX sockets)"
module.version = "6.0-dirty"
index: 11
name: <module-default-device-restore>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Automatically restore the default sink
and source"
module.version = "6.0-dirty"
index: 12
name: <module-rescue-streams>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "When a sink/source is removed, try to
move its streams to the default sink/source"
module.version = "6.0-dirty"
index: 13
name: <module-always-sink>
argument: <>
used: -1
load once: yes
pr( 580.200| 0.040) D: [pulseaudio][pulsecore/cli.c:129
line_callback()] operties:
module.author = "Colin Guthrie"
module.description = "Always keeps at least one sink loaded
even if it's a null one"
module.version = "6.0-dirty"
index: 15
name: <module-intended-roles>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Automatically set device of streams based
on intended roles of devices"
module.version = "6.0-dirty"
index: 16
name: <module-suspend-on-idle>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "When a sink/source is idle for too long,
suspend it"
module.version = "6.0-dirty"
index: 17
name: <module-position-event-sounds>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Position event sounds between L and R
depending on the position on screen of the widget triggering them."
module.version = "6.0-dirty"
index: 18
name: <module-role-cork>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Mute & cork streams with certain roles
while others exist"
module.version = "6.0-dirty"
index: 25
name: <module-bluez5-device>
argument: <path=/org/bluez/hci0/dev_98_D6_F7_34_98_E8>
used: 4
load once: no
properties:
index: 27
name: <module-loopback>
argument: <sink="bluez_sink.98_D6_F7_34_98_E8" sink_dont_move="true"
source_output_properties="media.role=phone">
used: -1
load once: no
properties:
module.author = "Pierre-Louis Bossart"
module.description = "Loopback from source to sink"
module.version = "6.0-dirty"
index: 28
name: <module-loopback>
argument: <source="bluez_source.98_D6_F7_34_98_E8"
source_dont_move="true" sink_input_properties="media.role=phone">
used: -1
load once: no
properties:
module.author = "Pierre-Louis Bossart"
module.description = "Loopback from source to sink"
module.version = "6.0-dirty"
index: 29
name: <module-cli-protocol-unix>
argument: <>
used: -1
load once: no
properties:
module.author = "Lennart Poettering"
module.description = "Command line interface protocol (UNIX
sockets)"
module.version = "6.0-dirty"
1 sink(s) available.
* index: 1
name: <bluez_sink.98_D6_F7_34_98_E8>
driver: <module-bluez5-device.c>
flags: HARDWARE DECIBEL_VOLUME LATENCY FLAT_VOLUME
state: RUNNING
suspend cause:
priority: 9030
volume: mono: 65536 / 100% / 0.00 dB
balance 0.00
base volume: 65536 / 100% / 0.00 dB
volume steps: 65537
muted: no
current latency: 610.13 ms
max request: 0 KiB
max rewind: 0 KiB
monitor source: 5
sample spec: s16le 1ch 8000Hz
channel map: mono
Mono
used by: 2
linked by: 3
fixed latency: 128.00 ms
card: 3 <bluez_card.98_D6_F7_34_98_E8>
module: 25
properties:
bluetooth.protocol = "headset_audio_gateway"
device.description = "Nexus 4"
device.string = "98:D6:F7:34:98:E8"
device.api = "bluez"
device.class = "sound"
device.bus = "bluetooth"
device.form_factor = "phone"
bluez.path = "/org/bluez/hci0/dev_98_D6_F7_34_98_E8"
bluez.class = "0x5a020c"
bluez.alias = "Nexus 4"
device.icon_name = "audio-card-bluetooth"
ports:
phone-output: Phone (priority 0, latency offset 0 usec,
available: yes)
properties:
active port: <phone-output>
2 source(s) available.
index: 5
name: <bluez_sink.98_D6_F7_34_98_E8.monitor>
driver: <module-bluez5-device.c>
flags: DECIBEL_VOLUME LATENCY
state: RUNNING
suspend cause:
priority: 1030
volume: mono: 65536 / 100% / 0.00 dB
balance 0.00
base volume: 65536 / 100% / 0.00 dB
volume steps: 65537
muted: no
current latency: 0.00 ms
max rewind: 0 KiB
sample spec: s16le 1ch 8000Hz
channel map: mono
Mono
used by: 1
linked by: 1
fixed latency: 128.00 ms
monitor_of: 1
card: 3 <bluez_card.98_D6_F7_34_98_E8>
module: 25
properties:
device.description = "Monitor of Nexus 4"
device.class = "monitor"
device.string = "98:D6:F7:34:98:E8"
device.api = "bluez"
device.bus = "bluetooth"
devCLI got EOF from user.
( 580.957| 0.756) ice.form_factor = "phone"
bluez.path = "/org/bluez/hci0/dev_98_D6_F7_34_98_E8"
bluez.class = "0x5a020c"
bluez.alias = "Nexus 4"
device.icon_name = "audio-card-bluetooth"
* index: 6
name: <bluez_source.98_D6_F7_34_98_E8>
driver: <module-bluez5-device.c>
flags: HARDWARE DECIBEL_VOLUME LATENCY
state: RUNNING
suspend cause:
priority: 9030
volume: mono: 65536 / 100% / 0.00 dB
balance 0.00
base volume: 65536 / 100% / 0.00 dB
volume steps: 65537
muted: no
current latency: 25.00 ms
max rewind: 0 KiB
sample spec: s16le 1ch 8000Hz
channel map: mono
Mono
used by: 1
linked by: 1
fixed latency: 28.00 ms
card: 3 <bluez_card.98_D6_F7_34_98_E8>
module: 25
properties:
bluetooth.protocol = "headset_audio_gateway"
device.description = "Nexus 4"
device.string = "98:D6:F7:34:98:E8"
device.api = "bluez"
device.class = "sound"
device.bus = "bluetooth"
device.form_factor = "phone"
bluez.path = "/org/bluez/hci0/dev_98_D6_F7_34_98_E8"
bluez.class = "0x5a020c"
bluez.alias = "Nexus 4"
device.icon_name = "audio-card-bluetooth"
ports:
phone-input: Phone (priority 0, latency offset 0 usec,
available: yes)
properties:
active port: <phone-input>
1 client(s) logged in.
index: 12
driver: <cli.c>
owner module: 29
properties:
application.name = "UNIX socket client"
1 card(s) available.
index: 3
name: <bluez_card.98_D6_F7_34_98_E8>
driver: <module-bluez5-device.c>
owner module: 25
properties:
device.description = "Nexus 4"
device.string = "98:D6:F7:34:98:E8"
device.api = "bluez"
device.class = "sound"
device.bus = "bluetooth"
device.form_factor = "phone"
bluez.path = "/org/bluez/hci0/dev_98_D6_F7_34_98_E8"
bluez.class = "0x5a020c"
bluez.alias = "Nexus 4"
device.icon_name = "audio-card-bluetooth"
profiles:
a2dp_source: High Fidelity Capture (A2DP Source) (priority 10,
available: unknown)
headset_audio_gateway: Headset Audio Gateway (HSP/HFP)
(priority 20, available: yes)
off: Off (priority 0, available: yes)
active profile: <headset_audio_gateway>
sinks:
bluez_sink.98_D6_F7_34_98_E8/#1: Nexus 4
sources:
bluez_sink.98_D6_F7_34_98_E8.monitor/#5: Monitor of Nexus 4
bluez_source.98_D6_F7_34_98_E8/#6: Nexus 4
ports:
phone-output: Phone (priority 0, latency offset 0 usec,
available: yes)
properties:
phone-input: Phone (priority 0, latency offset 0 usec,
available: yes)
properties:
2 sink input(s) available.
index: 4
driver: <module-loopback.c>
flags: VARIABLE_RATE DONT_MOVE START_CORKED
state: RUNNING
sink: 1 <bluez_sink.98_D6_F7_34_98_E8>
volume: mono: 65536 / 100% / 0.00 dB
balance 0.00
muted: no
current latency: 8.00 ms
requested latency: 128.00 ms
sample spec: s16le 1ch 8000Hz
channel map: mono
Mono
resample method: speex-fixed-1
module: 27
properties:
media.role = "abstract"
module-stream-restore.id = "sink-input-by-media-role:abstract"
media.name = "Loopback from Monitor of Nexus 4"
index: 5
driver: <module-loopback.c>
flags: VARIABLE_RATE START_CORKED
state: DRAINED
sink: 1 <bluez_sink.98_D6_F7_34_98_E8>
volume: mono: 65536 / 100% / 0.00 dB
balance 0.00
muted: no
current latency: 0.00 ms
requested latency: 128.00 ms
sample spec: s16le 1ch 8000Hz
channel map: mono
Mono
resample method: speex-fixed-1
module: 28
properties:
media.role = "phone"
module-stream-restore.id = "sink-input-by-media-role:phone"
media.name = "Loopback from Nexus 4"
media.icon_name = "audio-card-bluetooth"
2 source output(s) available.
index: 7
driver: <module-loopback.c>
flags: START_CORKED
state: RUNNING
source: 5 <bluez_sink.98_D6_F7_34_98_E8.monitor>
volume: mono: 65536 / 100% / 0.00 dB
balance 0.00
muted: no
current latency: 0.00 ms
requested latency: 128.00 ms
sample spec: s16le 1ch 8000Hz
channel map: mono
Mono
resample method: (null)
owner module: 27
properties:
media.role = "phone"
module-stream-restore.id = "source-output-by-media-role:phone"
media.name = "Loopback to Nexus 4"
I: [pulseaudio][pulsecore/client.c:100 pa_client_free()] Freed 12 "UNIX socket
client" media.icon_name = "audio-card-bluetooth"
index: 8
driver: <module-loopback.c>
flags: DONT_MOVE START_CORKED
state: RUNNING
source: 6 <bluez_source.98_D6_F7_34_98_E8>
volume: mono: 65536 / 100% / 0.00 dB
balance 0.00
muted: no
current latency: 0.00 ms
requested latency: 28.00 ms
sample spec: s16le 1ch 8000Hz
channel map: mono
Mono
resample method: (null)
owner module: 28
properties:
media.role = "abstract"
module-stream-restore.id =
"source-output-by-media-role:abstract"
media.name = "Loopback to Nexus 4"
media.icon_name = "audio-card-bluetooth"
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