Re: [Alsa-user] Bluetooth headset
Thanks for all the info, guys! I have lots of things to try, now. I'll let you know how it goes. For now, bluez-alsa works, I still have Pipewire to test. Regards, Zala --- Original Message --- Le dimanche 26 juin 2022 à 09:58, Stuart Longland a écrit : > On Wed, 22 Jun 2022 11:45:22 + > Zala Pierre GOUPIL via Alsa-user alsa-user@lists.sourceforge.net wrote: > > > I don't know which compilation option is missing this time but I have > > a problem accessing a Bluetooth headset: I can pair and trust it but > > the only connection to it that is proposed to me is through the > > serial port of the headset. Needless to say that no sound is produced > > here. > > > You're not alone in compiling your own kernels… Bluetooth is a bit of a > strange beast, the host controllers have kernel drivers, but for things > like peripherals, there's a userspace driver stack called BlueZ that > talks to the peripheral. > > There are three ways I know of to access audio devices in this manner: > > 1. PulseAudio BlueZ plug-in: this has been the "official" way for some > time now. A2DP is pretty mature, but I find I only get low-quality > audio when used full-duplex. > 2. PipeWire BlueZ plug-in: Experimental, combines features of both > PulseAudio and JACK (which is real nice), but there are some sharp > edges. PipeWire is steadily improving however, and features CODECs > that provide better quality audio CODECs on Bluetooth. > 3. Bluez-ALSA: Skips the user-space media stack and links ALSA directly > up to BlueZ. Haven't tried it in a looong time, the latest version > is a re-write of the earlier attempt. > > I'm having reasonably good results with (2). With some coaxing, you > can get headsets to operate in mSBC mode when being used full-duplex, > which yields somewhat improved audio quality over the standard > telephone-quality audio usually available. > > (3) is apparently landing in Debian 12 if that's the distribution you > use. It is in the Gentoo portage tree. Not sure about Red Hat/Fedora > derivatives. > > I note Ubuntu 22.04 seemed to ship PipeWire, so it may be starting to > replace PulseAudio already. > -- > Stuart Longland (aka Redhatter, VK4MSL) > > I haven't lost my mind... > ...it's backed up on a tape somewhere. ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Bluetooth headset
On Wed, 22 Jun 2022 11:45:22 + Zala Pierre GOUPIL via Alsa-user wrote: > I don't know which compilation option is missing this time but I have > a problem accessing a Bluetooth headset: I can pair and trust it but > the only connection to it that is proposed to me is through the > serial port of the headset. Needless to say that no sound is produced > here. You're not alone in compiling your own kernels… Bluetooth is a bit of a strange beast, the host controllers have kernel drivers, but for things like peripherals, there's a userspace driver stack called BlueZ that talks to the peripheral. There are three ways I know of to access audio devices in this manner: 1. PulseAudio BlueZ plug-in: this has been the "official" way for some time now. A2DP is pretty mature, but I find I only get low-quality audio when used full-duplex. 2. PipeWire BlueZ plug-in: Experimental, combines features of both PulseAudio and JACK (which is real nice), but there are some sharp edges. PipeWire is steadily improving however, and features CODECs that provide better quality audio CODECs on Bluetooth. 3. Bluez-ALSA: Skips the user-space media stack and links ALSA directly up to BlueZ. Haven't tried it in a looong time, the latest version is a re-write of the earlier attempt. I'm having reasonably good results with (2). With some coaxing, you can get headsets to operate in mSBC mode when being used full-duplex, which yields somewhat improved audio quality over the standard telephone-quality audio usually available. (3) is apparently landing in Debian 12 if that's the distribution you use. It is in the Gentoo portage tree. Not sure about Red Hat/Fedora derivatives. I note Ubuntu 22.04 seemed to ship PipeWire, so it may be starting to replace PulseAudio already. -- Stuart Longland (aka Redhatter, VK4MSL) I haven't lost my mind... ...it's backed up on a tape somewhere. ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Bluetooth headset
Bonjour, I think I heard somewhere that you need pulseaudio to output audio via bluetooth. A quick startpage.com search on "alsa bluetooth audio" reveals this https://wiki.debian.org/Bluetooth/Alsa as first result. Does the information there help perhaps? cheers, P * Zala Pierre GOUPIL via Alsa-user [2022-06-22 13:46]: > Good afternoon, > > Hello me, it's me again, with my custom compiled kernels :-) > > I don't know which compilation option is missing this time but I have a > problem accessing a Bluetooth headset: I can pair and trust it but the only > connection to it that is proposed to me is through the serial port of the > headset. Needless to say that no sound is produced here. > > Would you have any ideas about this subject guys, please? > > Thanks a lot & Regards, > > Zala > > --- > Je n'aime pas seulement ma vie, mais aussi celle des autres. > (Blade Runner) > ___ > Alsa-user mailing list > Alsa-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/alsa-user ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
[Alsa-user] Bluetooth headset
Good afternoon, Hello me, it's me again, with my custom compiled kernels :-) I don't know which compilation option is missing this time but I have a problem accessing a Bluetooth headset: I can pair and trust it but the only connection to it that is proposed to me is through the serial port of the headset. Needless to say that no sound is produced here. Would you have any ideas about this subject guys, please? Thanks a lot & Regards, Zala --- Je n'aime pas seulement ma vie, mais aussi celle des autres. (Blade Runner)___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
[Alsa-user] Bluetooth headset not available fopr playback
Hello.
I have a bluetooth headset that I can connect to my computer:
# l2ping 00:18:91:*:*:*
Ping: 00:18:91:*:*:* from 00:1F:C6:DF:B0:FC (data size 44) ...
4 bytes from 00:18:91:*:*:* id 0 time 32.87ms
I have created a btheaset entry in my .asoundrc:
pcm.btheadset {
type bluetooth
device 00:18:91:*:*:*
profile auto
}
ctl.btheadset {
type bluetooth
}
However, I can't use the btheadset device in mplayer:
# mplayer -ao alsa:device=btheadset file.mp3
...snip...
bt_audio_service_open: connect() failed: Connection refused (111)
[AO_ALSA] Playback open error: Connection refused
Failed to initialize audio driver 'alsa:device=btheadset'
Could not open/initialize audio device - no sound.
Audio: no sound
Video: no video
Exiting... (End of file)
I can't see the device registered as a playback device in aplay -l
either.
This happens as a normal user as well as when I am root, so it musn't
be a permission issue?
Any hint?
Thanks!
--
Virtualization Cloud Management Using Capacity Planning
Cloud computing makes use of virtualization - but cloud computing
also focuses on allowing computing to be delivered as a service.
http://www.accelacomm.com/jaw/sfnl/114/51521223/
___
Alsa-user mailing list
Alsa-user@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/alsa-user
[Alsa-user] Bluetooth headset works, but ...
I am trying to get my Bluetooth headset (Motorola HK201) working with
ALSA, so that I can use it with Twinkle. My system is a ThinkPad T510
running Fedora 14, including PulseAudio. The ThinkPad has two built-in
audio devices:
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset
High Definition Audio (rev 06)
01:00.1 Audio device: nVidia Corporation High Definition Audio
Controller (rev a1)
I have paired my headset with the laptop, and it shows up in the KDE
Multimedia control as both an output device and a capture device. I
have set the headset as the preferred output and capture device, and I
am able to play audio through the headset with aplay (aplay foo.wav).
If I try to record from the headset (arecord foo.wav), however, it
still uses the microphone built in to the laptop. (Verified by walking
away from the laptop while recording my voice and listening to the
resulting WAV.)
I have verified that the microphone does work by disabling the modules
for the built-in audio devices and rebooting. When I do this, arecord
uses the microphone in the headset.
/etc/modprobe.d/disable-t510-sound.conf:
install snd_hda_codec_nvhdmi /bin/true
install snd_hda_codec_conexant /bin/true
install snd_hda_codec /bin/true
install snd_hda_intel /bin/true
I have tried creating a .asoundrc, based on the various examples that
Google has turned up:
pcm.btraw {
type bluetooth
device 00:24:1C:36:A3:6B
profile auto
}
ctl.btraw {
type bluetooth
}
pcm.btheadset {
type plug
slave {
pcm btraw
}
hint {
show on
description Motorola HK201
}
}
ctl.btheadset {
type bluetooth
}
Unfortunately, neither of the virtual devices is able to do anything:
[ipilc...@localhost temp]$ aplay -D btraw *.wav
Playing WAVE 'foo.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono
aplay: set_params:1053: Sample format non available
Available formats:
- S16_LE
[ipilc...@localhost temp]$ aplay -D btheadset *.wav
Playing WAVE 'foo.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono
ALSA lib audio/pcm_bluetooth.c:1613:(audioservice_expect) BT_OPEN
failed : Invalid argument(22)
aplay: set_params:1116: Unable to install hw params:
ACCESS: RW_INTERLEAVED
FORMAT: U8
SUBFORMAT: STD
SAMPLE_BITS: 8
FRAME_BITS: 8
CHANNELS: 1
RATE: 8000
PERIOD_TIME: 125000
PERIOD_SIZE: 1000
PERIOD_BYTES: 1000
PERIODS: 4
BUFFER_TIME: 50
BUFFER_SIZE: 4000
BUFFER_BYTES: 4000
TICK_TIME: 0
I have searched in vain for any documentation that really explains how
ALSA and BlueZ (and PulseAudio) are supposed to work together. I would
appreciate any suggestions about how I can make this work, or even how I
can debug the problem.
Thanks!
--
Ian Pilcher arequip...@gmail.com
--
Beautiful is writing same markup. Internet Explorer 9 supports
standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 L3.
Spend less time writing and rewriting code and more time creating great
experiences on the web. Be a part of the beta today
http://p.sf.net/sfu/msIE9-sfdev2dev
___
Alsa-user mailing list
Alsa-user@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Bluetooth headset works, but ...
An update. Fedora sets the default ALSA device to PulseAudio, and
PulseAudio was not using the headset as its default source, even though
I used the KDE applet to prefer it. After using padevchooser to set
the headset as the default audio source, arecord now records from the
headset, rather than the microphone built in to the laptop.
Even better, I have defined ALSA devices that specifically represent the
speaker and microphone in my headset, so I don't have to change the
PulseAudio default devices to make things work. Here is my .asoundrc:
pcm.hk201_sink {
type pulse
device bluez_sink.00_24_1C_36_A3_6B
hint {
description Motorola HK201 - Speaker
}
}
pcm.hk201_source {
type pulse
device bluez_source.00_24_1C_36_A3_6B
hint {
description Motorola HK201 - Microphone
}
}
--
Ian Pilcher arequip...@gmail.com
--
Beautiful is writing same markup. Internet Explorer 9 supports
standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 L3.
Spend less time writing and rewriting code and more time creating great
experiences on the web. Be a part of the beta today
http://p.sf.net/sfu/msIE9-sfdev2dev
___
Alsa-user mailing list
Alsa-user@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/alsa-user
[Alsa-user] Bluetooth headset : speaker works great, microphone no
Hi everyone,
I already posted a topic in archlinux forum on the subject, no one was
able to solve my problem, so I'm taking my chance with the specialists
:)
Here is the original topic :
https://bbs.archlinux.org/viewtopic.php?id=103169
On my bluetooth headset, the speaker part is working correctly (I can
hear sounds coming from mplayer or aplay on test files) but I can't
record any sound ! The only thing I can get is a noisy, continuous
scratch sound when I try very basic commands like :
arecord -D btheadset -f S16_BE blah.wav
My .asoundrc file :
pcm.btheadset {
type plug
slave {
pcm {
type bluetooth
device 00:1D:82:B4:59:19
profile auto
}
}
hint {
show on
description BT Headset
}
}
ctl.btheadset {
type bluetooth
}
When trying with pulseaudio (erasing my .asoundrc), same result...
I'm using kernel 2.6.35 with alsa 1.23.
Am I doing something wrong ? Is there a way to do some debug with this
type of device ? Someone on the arch forum talked about raw
configuration (last post), how can I do that ? Did someone already
manage to have a bluetooth headset fully functionnal ?
Thanks by advance for you help.
--
This SF.net email is sponsored by
Make an app they can't live without
Enter the BlackBerry Developer Challenge
http://p.sf.net/sfu/RIM-dev2dev
___
Alsa-user mailing list
Alsa-user@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Bluetooth Headset
John R. wrote: Memo5 wrote: Thanks for your reply! -Dbtheadset produces a correct output when i play a wav-file with a sampling rate of of the headset (8000). Otherwise I get a corrupt sound output. Alsa does not resample my sound, but I don't know the issue. Although I do not have this problem with A2DP I can reproduce it with profile voice. For me, this is not a work around as I expect I will be using gstreamer as the glue for what I am trying to do: gst-launch -v alsasrc ! audioconvert ! audioresample ! audio/x-raw-int, rate=8000, channel=1 ! alsasink device=bluetooth sync=false -- Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Bluetooth Headset
Thanks for your reply! -Dbtheadset produces a correct output when i play a wav-file with a sampling rate of of the headset (8000). Otherwise I get a corrupt sound output. Alsa does not resample my sound, but I don't know the issue. Do you use a bluetooth headset? If yes, can you please play a wav-file and send me the output of: aplay -v -D btheadset /usr/share/sounds/alsa/Front_Right.wav Steve I just joined list so can't directly reply to your email... 2) Play a file with 48000 samples/s, sound output is NOT ok: aplay -v -B 10 -Dplug:btheadset Front_Righ.wav Try it with -Dbtheadset. If I add plug it causes problems for me that sound similar to what you are reporting. John --- --- OpenSolaris 2009.06 is a cutting edge operating system for enterprises looking to deploy the next generation of Solaris that includes the latest innovations from Sun and the OpenSource community. Download a copy and enjoy capabilities such as Networking, Storage and Virtualization. Go to: http://p.sf.net/sfu/opensolaris-get ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user -- OpenSolaris 2009.06 is a cutting edge operating system for enterprises looking to deploy the next generation of Solaris that includes the latest innovations from Sun and the OpenSource community. Download a copy and enjoy capabilities such as Networking, Storage and Virtualization. Go to: http://p.sf.net/sfu/opensolaris-get ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Bluetooth Headset
Memo5 wrote: Thanks for your reply! -Dbtheadset produces a correct output when i play a wav-file with a sampling rate of of the headset (8000). Otherwise I get a corrupt sound output. Alsa does not resample my sound, but I don't know the issue. Although I do not have this problem with A2DP I can reproduce it with profile voice. For me ALSA does resample the sound but bluetoothd generates a constant stream of errors: Jun 8 20:31:11 aqui bluetoothd[25704]: Audio API: BT_REQUEST - BT_START_STREAM Jun 8 20:31:11 aqui bluetoothd[25704]: State changed /org/bluez/25704/hci0/dev_00_02_76_64_BB_C4: HEADSET_STATE_CONNECTED - HEADSET_STATE_PLAY_IN_PROGRESS Jun 8 20:31:11 aqui bluetoothd[25704]: SCO socket opened for headset /org/bluez/25704/hci0/dev_00_02_76_64_BB_C4 Jun 8 20:31:11 aqui bluetoothd[25704]: SCO fd=20 Jun 8 20:31:11 aqui bluetoothd[25704]: Audio API: BT_RESPONSE - BT_START_STREAM Jun 8 20:31:11 aqui bluetoothd[25704]: Audio API: BT_INDICATION - BT_NEW_STREAM Jun 8 20:31:11 aqui bluetoothd[25704]: State changed /org/bluez/25704/hci0/dev_00_02_76_64_BB_C4: HEADSET_STATE_PLAY_IN_PROGRESS - HEADSET_STATE_PLAYING Jun 8 20:31:11 aqui btusb_send_frame: hci0 urb d414b200 submission failed Jun 8 20:31:11 aqui btusb_send_frame: hci0 urb d22d7c00 submission failed Jun 8 20:31:11 aqui btusb_send_frame: hci0 urb d22d7e00 submission failed Jun 8 20:31:11 aqui btusb_send_frame: hci0 urb c7506600 submission failed Jun 8 20:31:11 aqui btusb_send_frame: hci0 urb c74cfc00 submission failed Jun 8 20:31:11 aqui btusb_send_frame: hci0 urb df07f600 submission failed Jun 8 20:31:11 aqui btusb_send_frame: hci0 urb df07f400 submission failed Jun 8 20:31:11 aqui btusb_send_frame: hci0 urb cfe71400 submission failed Jun 8 20:31:11 aqui btusb_send_frame: hci0 urb cfe71200 submission failed Jun 8 20:31:11 aqui btusb_send_frame: hci0 urb cfe71000 submission failed Jun 8 20:31:11 aqui btusb_send_frame: hci0 urb c5d38000 submission failed ALSA seems to do the right thing: aplay -v -D bluetooth audio_10.wav Playing WAVE 'audio_10.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo Plug PCM: Route conversion PCM (sformat=S16_LE) Transformation table: 0 - 0*0.5 + 1*0.5 Its setup is: stream : PLAYBACK access : RW_INTERLEAVED format : S16_LE subformat: STD channels : 2 rate : 44100 exact rate : 44100 (44100/1) msbits : 16 buffer_size : 22050 period_size : 5512 period_time : 125000 tstamp_mode : NONE period_step : 1 avail_min: 5512 period_event : 0 start_threshold : 22050 stop_threshold : 22050 silence_threshold: 0 silence_size : 0 boundary : 1445068800 Slave: Rate conversion PCM (8000, sformat=S16_LE) Its setup is: stream : PLAYBACK access : MMAP_INTERLEAVED format : S16_LE subformat: STD channels : 1 rate : 44100 exact rate : 44100 (44100/1) msbits : 16 buffer_size : 22050 period_size : 5512 period_time : 125000 tstamp_mode : NONE period_step : 1 avail_min: 5512 period_event : 0 start_threshold : 22050 stop_threshold : 22050 silence_threshold: 0 silence_size : 0 boundary : 1445068800 Slave: Bluetooth Audio Device Its setup is: stream : PLAYBACK access : MMAP_INTERLEAVED format : S16_LE subformat: STD channels : 1 rate : 8000 exact rate : 8000 (8000/1) msbits : 16 buffer_size : 4000 period_size : 1000 period_time : 125000 tstamp_mode : NONE period_step : 1 avail_min: 1000 period_event : 0 start_threshold : 4000 stop_threshold : 4000 silence_threshold: 0 silence_size : 0 boundary : 2097152000 The submission failed floods the logs with its volume. I am running 4.41. If I record the stream coming off the headset and play that back it works fine. John -- Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Bluetooth Headset
I just joined list so can't directly reply to your email... 2) Play a file with 48000 samples/s, sound output is NOT ok: aplay -v -B 10 -Dplug:btheadset Front_Righ.wav Try it with -Dbtheadset. If I add plug it causes problems for me that sound similar to what you are reporting. John -- OpenSolaris 2009.06 is a cutting edge operating system for enterprises looking to deploy the next generation of Solaris that includes the latest innovations from Sun and the OpenSource community. Download a copy and enjoy capabilities such as Networking, Storage and Virtualization. Go to: http://p.sf.net/sfu/opensolaris-get ___ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
Re: [Alsa-user] Bluetooth Headset
Hi!
I did further testing, also with another headset (Nokia BH-208) where I could
get sound working with still some errors.
It only possible to play correct sampled date with a rate of 8000, all other
sample rates fail. If i test with another sampe-rate there is no correct
output. I thought alsa does the correct resampling, but it does not
In my ~/.asoundrc I have included a plug device:
pcm.btheadset {
type plug
slave {
pcm btheadsetraw
}
}
pcm.btheadsetraw {
type bluetooth
device xx:xx:xx:xx:xx:xx
profile auto
}
1)
Play a file with 8000 samples/s, sound output is fine:
aplay -v -B 10 -Dplug:btheadset Front_Right_resampled8000.wav
Playing WAVE 'Front_Right_resampled8000.wav' : Signed 16 bit Little Endian,
Rate 8000 Hz, Mono
Plug PCM: Plug PCM: Bluetooth Audio Device
Its setup is:
stream : PLAYBACK
access : RW_INTERLEAVED
format : S16_LE
subformat: STD
channels : 1
rate : 8000
exact rate : 8000 (8000/1)
msbits : 16
buffer_size : 800
period_size : 200
period_time : 25000
tstamp_mode : NONE
period_step : 1
avail_min: 200
start_threshold : 800
stop_threshold : 800
silence_threshold: 0
silence_size : 0
boundary : 1677721600
-
2)
Play a file with 48000 samples/s, sound output is NOT ok:
aplay -v -B 10 -Dplug:btheadset Front_Righ.wav
Playing WAVE 'Front_Right.wav' : Signed 16 bit Little Endian, Rate 48000 Hz,
Mono
Plug PCM: Plug PCM: Rate conversion PCM (8000, sformat=S16_LE)
Its setup is:
stream : PLAYBACK
access : RW_INTERLEAVED
format : S16_LE
subformat: STD
channels : 1
rate : 48000
exact rate : 48000 (48000/1)
msbits : 16
buffer_size : 4800
period_size : 1200
period_time : 25000
tstamp_mode : NONE
period_step : 1
avail_min: 1200
start_threshold : 4800
stop_threshold : 4800
silence_threshold: 0
silence_size : 0
boundary : 1258291200
Slave: Bluetooth Audio Device
Its setup is:
stream : PLAYBACK
access : MMAP_INTERLEAVED
format : S16_LE
subformat: STD
channels : 1
rate : 8000
exact rate : 8000 (8000/1)
msbits : 16
buffer_size : 800
period_size : 200
period_time : 25000
tstamp_mode : NONE
period_step : 1
avail_min: 200
start_threshold : 800
stop_threshold : 800
silence_threshold: 0
silence_size : 0
boundary : 1677721600
--
Why does alsa not sample correct? Do you need still more information to help
me solve the Problem?
thanks,
Stefan
Hi!
I am configuring a Bluetooth Headset (Nokia BH-101) with alsa. Pairing with
the device seems to be ok, but the sound-output and input is not.
Playing a sound with
aplay -D btheadset -B 10 /usr/share/sounds/alsa/Front_Right.wav
produces a loud noise in the headset, only a recongnizeable distored sound
is played in the background. It seems to me being a sampling-rate problem.
A similar problem exists when i try to record a sound with arecord, a
sample file is here: http://members.aon.at/astronom/files/test_bt_rec.wav
It is an 16bit, mono PCM file with 8000Hz.
Can anybody speziefie the problem when litening to this file. (it is a
count-up until 10 - in german)
My ~/.asoundrc:
pcm.btheadset {
type bluetooth
device 00:xx:xx:xx:xx:xx
profile voice
}
aplay --version
aplay: version 1.0.16 by Jaroslav Kysela pe...@perex.cz
(it is from Debian lenny)
thanks,
Steve
--
OpenSolaris 2009.06 is a cutting edge operating system for enterprises
looking to deploy the next generation of Solaris that includes the latest
innovations from Sun and the OpenSource community. Download a copy and
enjoy capabilities such as Networking, Storage and Virtualization.
Go to: http://p.sf.net/sfu/opensolaris-get
___
Alsa-user mailing list
Alsa-user@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/alsa-user
[Alsa-user] Bluetooth Headset
Hi!
I am configuring a Bluetooth Headset (Nokia BH-101) with alsa. Pairing with
the device seems to be ok, but the sound-output and input is not.
Playing a sound with
aplay -D btheadset -B 10 /usr/share/sounds/alsa/Front_Right.wav
produces a loud noise in the headset, only a recongnizeable distored sound is
played in the background. It seems to me being a sampling-rate problem.
A similar problem exists when i try to record a sound with arecord, a sample
file is here: http://members.aon.at/astronom/files/test_bt_rec.wav
It is an 16bit, mono PCM file with 8000Hz.
Can anybody speziefie the problem when litening to this file. (it is a
count-up until 10 - in german)
My ~/.asoundrc:
pcm.btheadset {
type bluetooth
device 00:xx:xx:xx:xx:xx
profile voice
}
aplay --version
aplay: version 1.0.16 by Jaroslav Kysela pe...@perex.cz
(it is from Debian lenny)
thanks,
Steve
--
OpenSolaris 2009.06 is a cutting edge operating system for enterprises
looking to deploy the next generation of Solaris that includes the latest
innovations from Sun and the OpenSource community. Download a copy and
enjoy capabilities such as Networking, Storage and Virtualization.
Go to: http://p.sf.net/sfu/opensolaris-get
___
Alsa-user mailing list
Alsa-user@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/alsa-user
[Alsa-user] Bluetooth headset woes
Hi all,
I have successfully managed to output sound to my bluetooth headset using
mplayer and aplay, hooray! Two things elude me still though...
First, I cannot get audio capture to work via the headset, and second, I don't
know how to tell various applications like skype/exaile/audacious etc... to use
the headset. I can do it with mplayer, via the command line, but the device
doesn't show up as an option in the gui version.
So I suppose a directed set of questions is in order:
1) What do I have to do to get audio capture working. Is there something special
I need to add to my .asoundrc in addition to the following
pcm.bluetooth {
type bluetooth
device 00:18:E4:19:35:11
}
2) I'm guessing the way to go to get exaile, audacious etc... to 'detect' the
bluetooth headset as a device would be to create a virtual device in my
.asoundrc which wraps the bluetooth device, but I have no idea how to do that.
Any suggestions?
Thanks,
James
-
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100url=/
___
Alsa-user mailing list
Alsa-user@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/alsa-user
[Alsa-user] bluetooth headset doesn't work well(Motorola HS820)
Hi,
I have a blue-tooth headset connected to Ubuntu 8.04. I've created
~/.asoundrc as below:
pcm.bluetooth {
type bluetooth
device 20:04:07:80:BC:89
profile voice
}
ctl.bluetooth {
type bluetooth
}
now I can use command `aplay -Dbluetooth -v 2.wav` to play sound to the
headset, but the sound is little bit wired.
Playing WAVE '2.wav' : Signed 16 bit Little Endian, Rate 16000 Hz, Mono
Warning: rate is not accurate (requested = 16000Hz, got = 8000Hz)
please, try the plug plugin (-Dplug:bluetooth)
Bluetooth Audio Device
Its setup is:
stream : PLAYBACK
access : RW_INTERLEAVED
format : S16_LE
subformat: STD
channels : 1
rate : 8000
exact rate : 8000 (8000/1)
msbits : 16
buffer_size : 4000
period_size : 1000
period_time : 125000
tstamp_mode : NONE
period_step : 1
avail_min: 1000
period_event : 0
start_threshold : 4000
stop_threshold : 4000
silence_threshold: 0
silence_size : 0
boundary : 2097152000
So I input command according to the aplay's recommendation `aplay
-Dplug:bluetooth -v 2.wav`. The problem comes out.
aplay -Dplug:bluetooth -v 2.wav
Playing WAVE '2.wav' : Signed 16 bit Little Endian, Rate 16000 Hz, Mono
Plug PCM: Rate conversion PCM (8000, sformat=S16_LE)
Its setup is:
stream : PLAYBACK
access : RW_INTERLEAVED
format : S16_LE
subformat: STD
channels : 1
rate : 16000
exact rate : 16000 (16000/1)
msbits : 16
buffer_size : 8000
period_size : 2000
period_time : 125000
tstamp_mode : NONE
period_step : 1
avail_min: 2000
period_event : 0
start_threshold : 8000
stop_threshold : 8000
silence_threshold: 0
silence_size : 0
boundary : 2097152000
Slave: Bluetooth Audio Device
Its setup is:
stream : PLAYBACK
access : MMAP_INTERLEAVED
format : S16_LE
subformat: STD
channels : 1
rate : 8000
exact rate : 8000 (8000/1)
msbits : 16
buffer_size : 4000
period_size : 1000
period_time : 125000
tstamp_mode : NONE
period_step : 1
avail_min: 1000
period_event : 0
start_threshold : 4000
stop_threshold : 4000
silence_threshold: 0
silence_size : 0
boundary : 2097152000
It seems that ALSA plugs rate plugin. But I hear NOTHING from my headset
and aplay seems suspended. I turn on bluez debug flag and rebuild it. I
find the bluez suspending at 'bluetooth_playback_poll_descriptors'.
Sep 7 23:18:59 alex-laptop aplay: DEBUG: pcm_bluetooth.c 930
bluetooth_hsp_write: count=0 frames_to_read=24
Sep 7 23:18:59 alex-laptop aplay: DEBUG: pcm_bluetooth.c 993
bluetooth_hsp_write: returning 24
Sep 7 23:18:59 alex-laptop aplay: DEBUG: pcm_bluetooth.c 912
bluetooth_hsp_write: areas-step=16 areas-first=0 offset=0, size=1000
io-nonblock=0 io-hw_ptr=0 io-appl_ptr=0 stream.fd=8 link_mtu=48
data-count=0
Sep 7 23:18:59 alex-laptop aplay: DEBUG: pcm_bluetooth.c 930
bluetooth_hsp_write: count=0 frames_to_read=24
Sep 7 23:18:59 alex-laptop aplay: DEBUG: pcm_bluetooth.c 993
bluetooth_hsp_write: returning 24
Sep 7 23:18:59 alex-laptop aplay: DEBUG: pcm_bluetooth.c 802
bluetooth_playback_poll_descriptors: Space =2 pfd[0].fd=5 pfd[1].fd=6
Sep 7 23:19:01 alex-laptop audio[7979]: Received AT+VGS=11
Now I go deep into ALSA then I find ALSA suspending at:
int snd_pcm_wait_nocheck(snd_pcm_t *pcm, int timeout)
{
struct pollfd *pfd;
unsigned short *revents;
int i, npfds, pollio, err, err_poll;
npfds = snd_pcm_poll_descriptors_count(pcm);
if (npfds = 0 || npfds = 16) {
SNDERR(Invalid poll_fds %d\n, npfds);
return -EIO;
}
pfd = alloca(sizeof(*pfd) * npfds);
revents = alloca(sizeof(*revents) * npfds);
syslog( LOG_INFO, %s, __FUNCTION__ );
err = snd_pcm_poll_descriptors(pcm, pfd, npfds);
if (err 0)
return err;
if (err != npfds) {
SNDMSG(invalid poll descriptors %d\n, err);
return -EIO;
}
do {
pollio = 0;
err_poll = poll(pfd, npfds, timeout);-
It seems the bluez doesn't feed ALSA some signals. But why? I notice
'bluetooth_playback_start' haven't been invoked. Is it the point? Then I
keep tracing ALSA. I find in snd_pcm_rate_commit_area
result = snd_pcm_mmap_commit(rate-gen.slave, slave_offset,
slave_size);
if (result (snd_pcm_sframes_t)slave_size) {
if (result 0)
return result;
result = snd_pcm_rewind(rate-gen.slave, result);
---
if (result 0)
return result;
return 0;
}
The snd_pcm_mmap_commit returns with 24 which indicates bluetooth SCO
link mtu(48bytes). And it causes
