>From a pin allocation prospectively, allocating the right McASP pins may
introduce other problems (pin sharing, etc). The ADCs have dedicated analog
pins to avoid this.
For basic ("telephony quality") audio, the ADCs are quite work able. Things
you need to consider are -
- Signal conditioning
Please ensure your replies include beagleboad group e-mail list.
The standard ADC driver is based on IIO framework and does not use the PRU,
hence you will find the driver under /drivers/iio/adc/ti_am335x_adc.c.
The libpruio was developed by jeli.freih...@gmail.com
OK, so without using PRU you would read from /dev/iio:device0, but the sampling
rate isn’t going to be fast enough for you. You can increase the sampling rate
by modifying the ADC dts parameters which you will find in the ADC overlay.
sudo sh -c "echo ‘BB-ADC' >
@TJF,
You do realize that audio is more than just an ADC. Think equalization, dynamic
range, etc. Also, you need streaming and that requires a lot more code on the
ARM side which isn’t necessary when you use a CODEC and the ALSA framework.
Regards,
John
> On Jul 15, 2016, at 7:42 AM, TJF
Hi!
Am Freitag, 15. Juli 2016 00:33:44 UTC+2 schrieb keerthana@gmail.com:
>
> I'm looking to use an electret microphone with a beaglebone black for my
> project. Can't I directly plug the mic into an analog pin and use the data?
> Do I need a pre amplifier circuit kind of thing to use the
You would be better off using an audio codec for this purpose. Unfortunately,
the Audio Cape doesn’t bring out the microphone circuitry, but you could use a
audio preamp and connect to the audio cape audio input.
Regards,
John
> On Jul 14, 2016, at 3:26 PM, keerthana.manivan...@gmail.com
Hi there,
I'm looking to use an electret microphone with a beaglebone black for my
project. Can't I directly plug the mic into an analog pin and use the data?
Do I need a pre amplifier circuit kind of thing to use the mic with a BBB?
On Tuesday, March 10, 2015 at 11:49:16 PM UTC-5, sns
Will USB headset with mic work for audio application that records sound and
playback on beaglebone with quality?Here is there is no need for separate
pre- amplifier or circuit that requires biasing mic voltage?
On Thu, Feb 26, 2015 at 2:53 PM, Zainab S.V sv.zai...@gmail.com wrote:
What about
What about using microphone input from a headphone for recording and using
the headset for playback? Does it need any extra circuitry?
On Tue, Feb 24, 2015 at 8:22 PM, Fredrik Olofsson redf...@gmail.com wrote:
all the usb soundcards i've tried so far can don't need biasing. just
solder an
all the usb soundcards i've tried so far can don't need biasing. just
solder an electret mic directly to a minijack and connect it to the input
of the usb soundcard. though note that sound quality varies. some cards
make a lot of noise (one logilink model even was blinking a led when active
On Feb 19, 2015, at 9:11 PM, sns sv.zai...@gmail.com wrote:
Did it work? Can you please say the procedure? I am working on a project that
has a similar requirement.
The mic bias voltage on the TLV320AIC3104 isn’t connected on the audio cape so
you will need external circuitry to use a mic.
If i use usb audio interface instead of the cape, is there a need for
biasing ?
On Friday, February 20, 2015 at 10:57:59 AM UTC+5:30, john3909 wrote:
On Feb 19, 2015, at 9:11 PM, sns sv.z...@gmail.com javascript: wrote:
Did it work? Can you please say the procedure? I am working on a
Is there a dummies guide to replacing a kernel on a BBB built with a
flasher with a new one?
On Tuesday, 3 June 2014 17:58:20 UTC+1, lisarden wrote:
I think you just need to recompile the kernel with the code provided. Then
you use alsamixer to tell which device captures sounds
2014-06-03
sure!
http://eewiki.net/display/linuxonarm/BeagleBone+Black
2014-06-04 21:04 GMT+04:00 Tristan Phillips tris.phill...@gmail.com:
Is there a dummies guide to replacing a kernel on a BBB built with a
flasher with a new one?
On Tuesday, 3 June 2014 17:58:20 UTC+1, lisarden wrote:
I think
Hi,
I'm wondering how I can set the mic bias voltage level on the Audio Cape,
it is currently off and I cannot get my mic to work. Can I do this via
alsa or something similar?
Thank you,
Tris
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Hi!
diff --git a/sound/soc/davinci/davinci-evm.c b/sound/soc/davinci/davinci-evm.c
index 7ad7b37..e196aa5 100644
--- a/sound/soc/davinci/davinci-evm.c
+++ b/sound/soc/davinci/davinci-evm.c
@@ -117,15 +117,13 @@ static const struct snd_soc_dapm_route audio_map[] = {
{Line Out, NULL,
Thank you, does that mean I need a device tree overlay that tells the
driver I'm using a mic as well as line in?
Will I need to recompile the kernel to apply this patch?
On Tuesday, 3 June 2014 17:48:15 UTC+1, lisarden wrote:
Hi!
diff --git a/sound/soc/davinci/davinci-evm.c
I think you just need to recompile the kernel with the code provided. Then
you use alsamixer to tell which device captures sounds
2014-06-03 20:51 GMT+04:00 Tristan Phillips tris.phill...@gmail.com:
Thank you, does that mean I need a device tree overlay that tells the
driver I'm using a mic
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