[android-developers] Re: How to use AudioRecord and AudioTrack

2009-05-07 Thread l hx
this is my code:

err = snd_pcm_hw_params_set_channels(mHandle, mHardwareParams, channels);
if (err < 0) {
LOGE("Unable to set channel count to %i: %s",
channels, snd_strerror(err));
return BAD_VALUE;
}


On Fri, May 8, 2009 at 12:47 PM, l hx  wrote:

> i get the raw data from my device , and i find that the data is stereo. and
> when i using the function of alsa-lib to set the channel to 1 channel. but
> it tell me wrong to set
>
>
> On Fri, May 8, 2009 at 12:58 AM, Dave Sparks wrote:
>
>>
>> The mic on all current Android devices, why would you want to record
>> stereo?
>>
>> On May 7, 3:43 am, l hx  wrote:
>> > can we using channels 2 when recording audio?
>> >
>> > On Sat, May 2, 2009 at 12:54 AM, Jean-Michel  wrote:
>> >
>> > > Hi there,
>> > > Looks like sipdroid (www.sipdroid.org) is using AudioTrack and
>> > > AudioRecord for their SIP client. Go to the "Browse source" page and
>> > > look at trunk > src > org > sipdroid > media > RtpStreamReceiver.java
>> > > and RtpStreamSender.java, and search respectively for "track" and
>> > > "record".
>> >
>> > > On Apr 30, 7:07 am, Thomson  wrote:
>> > > > Hi,
>> > > >I want to use AudioRecord and AudioTrack classes(in SDK 1.5)
>> in
>> > > > my program.
>> > > > Where can I find how to use it. Is there any API demo program for
>> > > > this?.
>> > > > If not it is greatly appreciated if someone can post a sample code
>> in
>> > > > this forum
>> >
>> > > > Thanks
>> >>
>>
>

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[android-developers] Re: How to use AudioRecord and AudioTrack

2009-05-07 Thread l hx
i get the raw data from my device , and i find that the data is stereo. and
when i using the function of alsa-lib to set the channel to 1 channel. but
it tell me wrong to set

On Fri, May 8, 2009 at 12:58 AM, Dave Sparks wrote:

>
> The mic on all current Android devices, why would you want to record
> stereo?
>
> On May 7, 3:43 am, l hx  wrote:
> > can we using channels 2 when recording audio?
> >
> > On Sat, May 2, 2009 at 12:54 AM, Jean-Michel  wrote:
> >
> > > Hi there,
> > > Looks like sipdroid (www.sipdroid.org) is using AudioTrack and
> > > AudioRecord for their SIP client. Go to the "Browse source" page and
> > > look at trunk > src > org > sipdroid > media > RtpStreamReceiver.java
> > > and RtpStreamSender.java, and search respectively for "track" and
> > > "record".
> >
> > > On Apr 30, 7:07 am, Thomson  wrote:
> > > > Hi,
> > > >I want to use AudioRecord and AudioTrack classes(in SDK 1.5)
> in
> > > > my program.
> > > > Where can I find how to use it. Is there any API demo program for
> > > > this?.
> > > > If not it is greatly appreciated if someone can post a sample code in
> > > > this forum
> >
> > > > Thanks
> >
>

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[android-developers] Re: How to use AudioRecord and AudioTrack

2009-05-07 Thread Dave Sparks

The mic on all current Android devices, why would you want to record
stereo?

On May 7, 3:43 am, l hx  wrote:
> can we using channels 2 when recording audio?
>
> On Sat, May 2, 2009 at 12:54 AM, Jean-Michel  wrote:
>
> > Hi there,
> > Looks like sipdroid (www.sipdroid.org) is using AudioTrack and
> > AudioRecord for their SIP client. Go to the "Browse source" page and
> > look at trunk > src > org > sipdroid > media > RtpStreamReceiver.java
> > and RtpStreamSender.java, and search respectively for "track" and
> > "record".
>
> > On Apr 30, 7:07 am, Thomson  wrote:
> > > Hi,
> > >        I want to use AudioRecord and AudioTrack classes(in SDK 1.5) in
> > > my program.
> > > Where can I find how to use it. Is there any API demo program for
> > > this?.
> > > If not it is greatly appreciated if someone can post a sample code in
> > > this forum
>
> > > Thanks
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[android-developers] Re: How to use AudioRecord and AudioTrack

2009-05-07 Thread l hx
can we using channels 2 when recording audio?

On Sat, May 2, 2009 at 12:54 AM, Jean-Michel  wrote:

>
> Hi there,
> Looks like sipdroid (www.sipdroid.org) is using AudioTrack and
> AudioRecord for their SIP client. Go to the "Browse source" page and
> look at trunk > src > org > sipdroid > media > RtpStreamReceiver.java
> and RtpStreamSender.java, and search respectively for "track" and
> "record".
>
> On Apr 30, 7:07 am, Thomson  wrote:
> > Hi,
> >I want to use AudioRecord and AudioTrack classes(in SDK 1.5) in
> > my program.
> > Where can I find how to use it. Is there any API demo program for
> > this?.
> > If not it is greatly appreciated if someone can post a sample code in
> > this forum
> >
> > Thanks
>
> >
>

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[android-developers] Re: How to use AudioRecord and AudioTrack

2009-05-03 Thread Jean-Michel

Hi there,
Looks like sipdroid (www.sipdroid.org) is using AudioTrack and
AudioRecord for their SIP client. Go to the "Browse source" page and
look at trunk > src > org > sipdroid > media > RtpStreamReceiver.java
and RtpStreamSender.java, and search respectively for "track" and
"record".

On Apr 30, 7:07 am, Thomson  wrote:
> Hi,
>        I want to use AudioRecord and AudioTrack classes(in SDK 1.5) in
> my program.
> Where can I find how to use it. Is there any API demo program for
> this?.
> If not it is greatly appreciated if someone can post a sample code in
> this forum
>
> Thanks

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