Constantly record and analyze microphone input

Is it possible to analyze microphone input data while it is being recorded? My program needs to measure the input voltage and the program needs to procede when the voltage is equal to 5V.
Thank you.

The sound card can be a bit problematic in this sense especially if you change the input gain for the mic and watch out for any bass boost function being on used as this will affect the scale as well.
As for the scaling on a standard sound card, there is none as such (see article 3 below). The input
is represented as ±32767 on a standard 16 bit card and obviously larger
for the newer 24bit cards.
The easiest option would be to generate a signal, measure it and then play into the mic input. I would suggest that the mic input (or possibly better the line input) would be in the order of a couple of hundred milli volts so if youre sure that you have a five volt signal then you will need to scale the input with a resistor (say a 5K ohm variable resistor set up as a potential divider).
You may find that the following articles will help not only with the principles but with the practice as well: -
http://www.virtins.com/Virtins_Sound_Card_Oscilloscope_Probe_Manual.pdf
http://www.techmind.org/audio/
This link is quite good as well:-
http://www.audioprecision.com/index.php?page=support&id=1100001014
If its a mac the following may apply (I don;t use them a great deal, sorry): -
http://www.channld.com/distspec.html

Similar Messages

Recording and playing sound input from mic simultaneously in iphone/ipad

I want to simultaneously record and play the sound from a mic in iphone. As thecricket commentory application.
Please provide me a solution for this.
Is this possible in iOs.

This probably isn't going to sound very helpful, for which I apologise in advance, but I'm afraid it's the truth...
The only way you stand any way of doing any of this is by using ASIO4ALL, which can aggregate different drivers from multiple devices. But I don't rate your chances too highly, I'm afraid - USB mics have long been the problem child of computer-based audio. On top of that, you are trying to get sounds in and out of a separate device at the same time - not only that, but it's a Creative Labs gamer's device and they are second only to USB mics in terms of the 'difficult' stakes - search this forum!
A much, much better way to attempt to do this would be to use a sensible ASIO external device with sufficient inputs, and a mic that plugs into it, not a USB one. That way you could route the inputs and outputs appropriately, and use the device's monitoring so that you could monitor what you need to. I wouldn't attempt to do anything like this any other way, I'm afraid. Another approach (which can be made to work well) is to use an external mixer to do most of the work - often it's easier to set up the monitoring on these. You can get mixers with the appropriate interface built-in, and they don't cost a fortune either. Mackie and Behringer make suitable devices.

I want to be able to use airplay to stream audio to another iOS device, and then use that audio stream to be used when recording video instead of the built in microphone / microphone input. Is this possible?

I want to be able to use airplay to stream audio to another iOS device, and then use that audio stream to be used when recording video instead of the built in microphone / microphone input. Is this possible?

A third-party app probably cannot obtain a stream from another app. To the best of my knowledge, such a capability is not provided in the software development kit, apps being "sandboxed" from each other and so allowed to communicate only in very specific and limited ways.
I'm not completely sure what you mean by "limitations on video capture". An iPhone, to the best of my knowledge, can natively record video only through it's built-in camera, and audio while doing video recording only through the built-in microphone or mic/headphone jack. There might be a video recording app that would allow audio input from an external device connected to the dock connector, but I'm not sure.
Regards.

Never used microphone input before, sound recorder window okay, no sound output.

Sound from sound recorder input goes nowhere, a sound window is supposed to open, it does not.
There is some software missing in my pavilion g7 laptop. Media player sound is fine, internet sound
is fine, only sound missing is from the microphone input. The sound recorder window is open and the
recording bar is moving as the input varies, how do I get the sound to the speakers. Never used this
option before, it might be defective from the factory.
This question was solved.
View Solution.

Problem solved. You cannot turn on computer with the microphone or other audio cable plugged in.
Otherwise the computer does not respond to the inputs, you have to plug in the microphone or audio
cable after logging in and then a window will open that allows you to select the that input over the default.

Using Both A Microphone and Stereo Mix Input In Audition

Hello,
I'm attempting to record a radio show..
Running Vista.... And using Adobe Audition 3. I am trying to use a stereo mix input (which I know is visible and can use) along with a microphone input (I have a sm57 mic, which is also activated and working).
However, it only gives me the ability to use one at a time when I go to multi track.
Any ideas?
~Thanks

That's all Microsoft's 'mixer' does for anybody; you can only select a single input to record from. The best solution in your case is to use a small, cheap external mixer instead. This has the added advantage of giving you some immediate physical control of what you are doing as well.

In which steps of Logic E. can I make a stereo audio recording track with a right and left microphone?

I want to make a stereo recording with a microphone for left and one for right. Can someone tell me the Logic steps to record 2 tracks (mono left and
mono right?) at once, to make a stereo track from both tracks? I use Logic Express 7.

I think it is easy if you have an audio interface that has two mic imputs. You direct each of them to two different mono audio tracks. Then, at the time if playing it, you just pan one channel to the left and the other to the right.
I think this is what you are asking for,
hope it helps

How to fix the signal with the microphone to the computer when recording through an interface? every time i record and play back i get poor signal and a lot of fuzz

How to fix the signal from the microphone to the computer when recording through an interface in logic pro? Every time i record and playback i get poor signal and a lot of fuzz.. how can i fix this problem?

Which model computer?
What operating system?

Running CS6 on a Macbook. Can anyone help me figure out how to record audio that is streaming on the Macbook? Under "Audio Hardware," my input choices are "Built in Mic" and "Built in Input." Neither does this.

Running CS6 on a Macbook. Can anyone help me figure out how to record audio that is streaming on the Macbook? Under "Audio Hardware," my input choices are "Built in Mic" and "Built in Input." Neither does this.

Please repost on the CS6 part of the Audition Forums.

Customer wants to record and input prompts into UCCX 8.0 based on various conditions

hello guys I have a question that requires an answer as wel as an example if possible. I have a customer that wants to be able to do an self initiated prompt change in the script. Such as something like "we are closed today due to weather conditions, please call back or leave a voicemail and we will get back to you as soon as weather permits" Is there way fact to perform this in a script? (Have them record a prompt based on a number they could call, and then store it somewhere and have the script play it?) I hope i am putting this question in a way that can be understood. I am relativley new to this type of function any assist would be greatly appreciated.

This is relatively easy and requires only a few steps to implement something basic. See if this gets you going in the right direction:
Prompt Manager Script
startacceptrepo_user = authenticate user /* you will hard code the username/password here */ successful recording = record prompt() successful upload prompt(recording, repo_user, filename, overwrite = true) successful play prompt(prompt uploaded successfully) terminate end
Customer Service Script
startacceptstart_time = t[now]play prompt(filename)if (t[now].getTime() - start_time.getTime() > 3000) /* if the message is greater than 3 seconds, it probably exists */ true goto emergency_routing false goto normal_routinglabel emergency_routingterminateendlabel normal_routing...end
To turn on the emergency, you call into the Prompt Manager, created your recording, and press # when finished. The Customer Service script will attempt to play what's in the recording, and if the recording duration is greater than 3 seconds, it assumes a recording was played out to the caller and initiates the emergency routing logic.
To turn off the emergency, you call into the Prompt Manager, press mute on the phone, and press # within 3 seconds. The Customer Service script will attempt to play what's in the recording, and if the recording duration is less than 3 seconds, it assumes no recording was played out to the caller and initiates the normal routing logic.
You can take this small example and add so many more features, such as:
Authentication
Authorization
Multiple Recordings
Review, Re-record, Delete, for the prompt
A message that informs you if the current status is on or off
Multi script support (not just Customer Service, but Help Desk, and Sales too)
Etc.
Anthony

Cant record in stereo , mono input (aux in) intel ALC270 [Solved]

Hi there, i've been reading the forum but i cannot get the right answer to this issue.
I am trying to capture audio with the microphone input connector.
I tried it using audacity (as i always did with other distros but now is not working) and with this command arecord -vv -fdat foo.wav
The thing is, i always end up with a mono audio file. I see in alsamixer the input/capture connector is stereo, i can see the Left and Right volume levels
but modifing those make no difference.
Something seems to tell the whole system to translate the stereo microphone into a mono microphone or something like that... i am no quiet sure, cause in audacity the recording track shows a stereo track although both channels have the same audio track, the right channel one...
i was using this same computer not long ago with fedora, and for like 2 years with slackware and always worked fine... i've been using archlinux for 4 months now and i came across with this while trying to rip some new cassettes i got.
Thanks in advance for your help pals.
Cheers!
Last edited by federico7979 (2015-04-18 23:34:36)

upload=true&script=true&cardinfo=
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Arch Linux \r (\l) DISTRIB_ID=Arch DISTRIB_DESCRIPTION="Arch Linux" NAME="Arch Linux" ID=arch PRETTY_NAME="Arch Linux" HOME_URL="https://www.archlinux.org/" SUPPORT_URL="https://bbs.archlinux.org/" BUG_REPORT_URL="https://bugs.archlinux.org/"
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Manufacturer: ASUSTeK COMPUTER INC.
Product Name: K55A
Product Version: 1.0
Firmware Version: K55A.407
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Kernel release: 3.19.3-3-ARCH
Operating System: GNU/Linux
Architecture: x86_64
Processor: unknown
SMP Enabled: Yes
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Driver version: k3.19.3-3-ARCH
Library version: 1.0.29
Utilities version: 1.0.29
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snd_hda_intel
!!Sound Servers on this system
Pulseaudio:
Installed - Yes (/usr/bin/pulseaudio)
Running - Yes
Jack:
Installed - Yes (/usr/bin/jackd)
Running - No
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0 [PCH ]: HDA-Intel - HDA Intel PCH
HDA Intel PCH at 0xf7e10000 irq 29
!!PCI Soundcards installed in the system
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
!!Advanced information - PCI Vendor/Device/Subsystem ID's
00:1b.0 0403: 8086:1e20 (rev 04)
Subsystem: 1043:1457
!!Modprobe options (Sound related)
snd_hda_intel: model=laptop-amic
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align_buffer_size : -1
bdl_pos_adj : 1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
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enable : Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y
enable_msi : -1
id : (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null)
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jackpoll_ms : 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
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single_cmd : N
snoop : -1
!!HDA-Intel Codec information
--startcollapse--
Codec: Realtek ALC270
Address: 0
AFG Function Id: 0x1 (unsol 1)
Vendor Id: 0x10ec0270
Subsystem Id: 0x10431457
Revision Id: 0x100100
No Modem Function Group found
Default PCM:
rates [0x560]: 44100 48000 96000 192000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Default Amp-In caps: N/A
Default Amp-Out caps: N/A
State of AFG node 0x01:
Power states: D0 D1 D2 D3 CLKSTOP EPSS
Power: setting=D0, actual=D0
GPIO: io=2, o=0, i=0, unsolicited=1, wake=0
IO[0]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0
IO[1]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0
Node 0x02 [Audio Output] wcaps 0x1d: Stereo Amp-Out
Control: name="Headphone Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Device: name="ALC270 Analog", type="Audio", device=0
Amp-Out caps: ofs=0x57, nsteps=0x57, stepsize=0x02, mute=0
Amp-Out vals: [0x00 0x00]
Converter: stream=8, channel=0
PCM:
rates [0x560]: 44100 48000 96000 192000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Node 0x03 [Audio Output] wcaps 0x1d: Stereo Amp-Out
Control: name="Speaker Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Amp-Out caps: ofs=0x57, nsteps=0x57, stepsize=0x02, mute=0
Amp-Out vals: [0x57 0x57]
Converter: stream=8, channel=0
PCM:
rates [0x560]: 44100 48000 96000 192000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Node 0x04 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x05 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x06 [Audio Output] wcaps 0x211: Stereo Digital
Converter: stream=0, channel=0
Digital:
Digital category: 0x0
IEC Coding Type: 0x0
PCM:
rates [0x5e0]: 44100 48000 88200 96000 192000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Node 0x07 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x08 [Audio Input] wcaps 0x10011b: Stereo Amp-In
Control: name="Capture Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=0, ofs=0
Control: name="Capture Switch", index=0, device=0
ControlAmp: chs=3, dir=In, idx=0, ofs=0
Device: name="ALC270 Analog", type="Audio", device=0
Amp-In caps: ofs=0x0b, nsteps=0x1f, stepsize=0x05, mute=1
Amp-In vals: [0x08 0x08]
Converter: stream=4, channel=0
SDI-Select: 0
PCM:
rates [0x560]: 44100 48000 96000 192000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Connection: 1
0x23
Node 0x09 [Audio Input] wcaps 0x10011b: Stereo Amp-In
Amp-In caps: ofs=0x0b, nsteps=0x1f, stepsize=0x05, mute=1
Amp-In vals: [0x8b 0x8b]
Converter: stream=0, channel=0
SDI-Select: 0
PCM:
rates [0x560]: 44100 48000 96000 192000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Connection: 1
0x22
Node 0x0a [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x0b [Audio Mixer] wcaps 0x20010b: Stereo Amp-In
Control: name="Internal Mic Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=1, ofs=0
Control: name="Internal Mic Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=In, idx=1, ofs=0
Control: name="Mic Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=0, ofs=0
Control: name="Mic Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=In, idx=0, ofs=0
Amp-In caps: ofs=0x17, nsteps=0x1f, stepsize=0x05, mute=1
Amp-In vals: [0x17 0x17] [0x00 0x00] [0x80 0x80] [0x80 0x80] [0x80 0x80]
Connection: 5
0x18 0x19 0x1a 0x1b 0x1d
Node 0x0c [Audio Mixer] wcaps 0x20010b: Stereo Amp-In
Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-In vals: [0x00 0x00] [0x00 0x00]
Connection: 2
0x02 0x0b
Node 0x0d [Audio Mixer] wcaps 0x20010b: Stereo Amp-In
Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-In vals: [0x00 0x00] [0x00 0x00]
Connection: 2
0x03 0x0b
Node 0x0e [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x0f [Audio Mixer] wcaps 0x20010a: Mono Amp-In
Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-In vals: [0x00] [0x80]
Connection: 2
0x02 0x0b
Node 0x10 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x11 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x12 [Pin Complex] wcaps 0x40000b: Stereo Amp-In
Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0
Amp-In vals: [0x00 0x00]
Pincap 0x00000020: IN
Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
Conn = 1/8, Color = Black
DefAssociation = 0xf, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x00:
Node 0x13 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x14 [Pin Complex] wcaps 0x40018d: Stereo Amp-Out
Control: name="Speaker Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Control: name="Speaker Phantom Jack", index=0, device=0
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x00 0x00]
Pincap 0x00010014: OUT EAPD Detect
EAPD 0x2: EAPD
Pin Default 0x90170110: [Fixed] Speaker at Int N/A
Conn = Analog, Color = Unknown
DefAssociation = 0x1, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x40: OUT
Unsolicited: tag=00, enabled=0
Connection: 2
0x0c 0x0d*
Node 0x15 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x16 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x17 [Pin Complex] wcaps 0x40010c: Mono Amp-Out
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x80]
Pincap 0x00000010: OUT
Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
Conn = 1/8, Color = Black
DefAssociation = 0xf, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x00:
Connection: 1
0x0f
Node 0x18 [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
Control: name="Mic Boost Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=0, ofs=0
Control: name="Mic Jack", index=0, device=0
Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0
Amp-In vals: [0x00 0x00]
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x80 0x80]
Pincap 0x00001734: IN OUT Detect
Vref caps: HIZ 50 GRD 80
Pin Default 0x04a11840: [Jack] Mic at Ext Right
Conn = 1/8, Color = Black
DefAssociation = 0x4, Sequence = 0x0
Pin-ctls: 0x24: IN VREF_80
Unsolicited: tag=02, enabled=1
Connection: 1
0x0d
Node 0x19 [Pin Complex] wcaps 0x40008b: Stereo Amp-In
Control: name="Internal Mic Boost Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=0, ofs=0
Control: name="Internal Mic Phantom Jack", index=0, device=0
Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0
Amp-In vals: [0x00 0x00]
Pincap 0x00001724: IN Detect
Vref caps: HIZ 50 GRD 80
Pin Default 0x90a70930: [Fixed] Mic at Int N/A
Conn = Analog, Color = Unknown
DefAssociation = 0x3, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x24: IN VREF_80
Unsolicited: tag=00, enabled=0
Node 0x1a [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0
Amp-In vals: [0x00 0x00]
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x80 0x80]
Pincap 0x0000003c: IN OUT HP Detect
Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
Conn = 1/8, Color = Black
DefAssociation = 0xf, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x20: IN
Unsolicited: tag=00, enabled=0
Connection: 2
0x0c* 0x0d
Node 0x1b [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x2f, mute=0
Amp-In vals: [0x00 0x00]
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x80 0x80]
Pincap 0x00000034: IN OUT Detect
Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
Conn = 1/8, Color = Black
DefAssociation = 0xf, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x20: IN
Unsolicited: tag=00, enabled=0
Connection: 2
0x0c* 0x0d
Node 0x1c [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x1d [Pin Complex] wcaps 0x400000: Mono
Pincap 0x00000020: IN
Pin Default 0x40089d2d: [N/A] Line Out at Ext N/A
Conn = DIN, Color = Pink
DefAssociation = 0x2, Sequence = 0xd
Misc = NO_PRESENCE
Pin-ctls: 0x20: IN
Node 0x1e [Pin Complex] wcaps 0x400381: Stereo Digital
Pincap 0x00000014: OUT Detect
Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
Conn = 1/8, Color = Black
DefAssociation = 0xf, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x40: OUT
Unsolicited: tag=00, enabled=0
Connection: 1
0x06
Node 0x1f [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x20 [Vendor Defined Widget] wcaps 0xf00040: Mono
Processing caps: benign=0, ncoeff=25
Node 0x21 [Pin Complex] wcaps 0x40018d: Stereo Amp-Out
Control: name="Headphone Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Control: name="Headphone Jack", index=0, device=0
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x80 0x80]
Pincap 0x0000001c: OUT HP Detect
Pin Default 0x04211020: [Jack] HP Out at Ext Right
Conn = 1/8, Color = Black
DefAssociation = 0x2, Sequence = 0x0
Pin-ctls: 0xc0: OUT HP
Unsolicited: tag=01, enabled=1
Connection: 2
0x0c* 0x0d
Node 0x22 [Audio Selector] wcaps 0x30010b: Stereo Amp-In
Amp-In caps: N/A
Amp-In vals: [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x00 0x00]
Connection: 7
0x18* 0x19 0x1a 0x1b 0x1d 0x0b 0x12
Node 0x23 [Audio Mixer] wcaps 0x20010b: Stereo Amp-In
Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-In vals: [0x80 0x80] [0x00 0x00] [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80 0x80]
Connection: 6
0x18 0x19 0x1a 0x1b 0x1d 0x0b
Codec: Intel PantherPoint HDMI
Address: 3
AFG Function Id: 0x1 (unsol 0)
Vendor Id: 0x80862806
Subsystem Id: 0x80860101
Revision Id: 0x100000
No Modem Function Group found
Default PCM:
rates [0x0]:
bits [0x0]:
formats [0x0]:
Default Amp-In caps: N/A
Default Amp-Out caps: N/A
State of AFG node 0x01:
Power states: D0 D3 CLKSTOP EPSS
Power: setting=D0, actual=D0, Clock-stop-OK
GPIO: io=0, o=0, i=0, unsolicited=0, wake=0
Node 0x02 [Audio Output] wcaps 0x6611: 8-Channels Digital
Converter: stream=0, channel=0
Digital: Enabled
Digital category: 0x0
IEC Coding Type: 0x0
PCM:
rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
bits [0x1e]: 16 20 24 32
formats [0x5]: PCM AC3
Power states: D0 D3 EPSS
Power: setting=D0, actual=D0
Node 0x03 [Audio Output] wcaps 0x6611: 8-Channels Digital
Converter: stream=0, channel=0
Digital: Enabled
Digital category: 0x0
IEC Coding Type: 0x0
PCM:
rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
bits [0x1e]: 16 20 24 32
formats [0x5]: PCM AC3
Power states: D0 D3 EPSS
Power: setting=D0, actual=D0
Node 0x04 [Audio Output] wcaps 0x6611: 8-Channels Digital
Converter: stream=0, channel=0
Digital: Enabled
Digital category: 0x0
IEC Coding Type: 0x0
PCM:
rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
bits [0x1e]: 16 20 24 32
formats [0x5]: PCM AC3
Power states: D0 D3 EPSS
Power: setting=D0, actual=D0
Node 0x05 [Pin Complex] wcaps 0x40778d: 8-Channels Digital Amp-Out CP
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x00 0x80]
Pincap 0x09000094: OUT Detect HBR HDMI DP
Pin Default 0x58560010: [N/A] Digital Out at Int HDMI
Conn = Digital, Color = Unknown
DefAssociation = 0x1, Sequence = 0x0
Pin-ctls: 0x40: OUT
Unsolicited: tag=00, enabled=0
Power states: D0 D3 EPSS
Power: setting=D0, actual=D0
Connection: 1
0x02
Node 0x06 [Pin Complex] wcaps 0x40778d: 8-Channels Digital Amp-Out CP
Control: name="HDMI/DP,pcm=3 Jack", index=0, device=0
Control: name="IEC958 Playback Con Mask", index=0, device=0
Control: name="IEC958 Playback Pro Mask", index=0, device=0
Control: name="IEC958 Playback Default", index=0, device=0
Control: name="IEC958 Playback Switch", index=0, device=0
Control: name="ELD", index=0, device=3
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x00 0x00]
Pincap 0x09000094: OUT Detect HBR HDMI DP
Pin Default 0x18560020: [Jack] Digital Out at Int HDMI
Conn = Digital, Color = Unknown
DefAssociation = 0x2, Sequence = 0x0
Pin-ctls: 0x40: OUT
Unsolicited: tag=01, enabled=1
Power states: D0 D3 EPSS
Power: setting=D0, actual=D0
Connection: 1
0x03
Node 0x07 [Pin Complex] wcaps 0x40778d: 8-Channels Digital Amp-Out CP
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x00 0x80]
Pincap 0x09000094: OUT Detect HBR HDMI DP
Pin Default 0x58560030: [N/A] Digital Out at Int HDMI
Conn = Digital, Color = Unknown
DefAssociation = 0x3, Sequence = 0x0
Pin-ctls: 0x40: OUT
Unsolicited: tag=00, enabled=0
Power states: D0 D3 EPSS
Power: setting=D0, actual=D0
Connection: 1
0x04
Node 0x08 [Vendor Defined Widget] wcaps 0xf00000: Mono
--endcollapse--
!!ALSA Device nodes
crw-rw----+ 1 root audio 116, 2 Apr 17 08:14 /dev/snd/controlC0
crw-rw----+ 1 root audio 116, 6 Apr 17 08:14 /dev/snd/hwC0D0
crw-rw----+ 1 root audio 116, 7 Apr 17 08:14 /dev/snd/hwC0D3
crw-rw----+ 1 root audio 116, 4 Apr 17 08:15 /dev/snd/pcmC0D0c
crw-rw----+ 1 root audio 116, 3 Apr 17 08:39 /dev/snd/pcmC0D0p
crw-rw----+ 1 root audio 116, 5 Apr 17 08:15 /dev/snd/pcmC0D3p
crw-rw----+ 1 root audio 116, 1 Apr 17 08:14 /dev/snd/seq
crw-rw----+ 1 root audio 116, 33 Apr 17 08:14 /dev/snd/timer
/dev/snd/by-path:
total 0
drwxr-xr-x 2 root root 60 Apr 17 08:14 .
drwxr-xr-x 3 root root 220 Apr 17 08:14 ..
lrwxrwxrwx 1 root root 12 Apr 17 08:14 pci-0000:00:1b.0 -> ../controlC0
!!ALSA configuration files
!!System wide config file (/etc/asound.conf)
# Use PulseAudio by default
pcm.!default {
type pulse
fallback "sysdefault"
hint {
show on
description "Default ALSA Output (currently PulseAudio Sound Server)"
ctl.!default {
type pulse
fallback "sysdefault"
# vim:set ft=alsaconf:
!!Aplay/Arecord output
APLAY
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC270 Analog [ALC270 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
ARECORD
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC270 Analog [ALC270 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
!!Amixer output
!!-------Mixer controls for card 0 [PCH]
Card hw:0 'PCH'/'HDA Intel PCH at 0xf7e10000 irq 29'
Mixer name : 'Intel PantherPoint HDMI'
Components : 'HDA:10ec0270,10431457,00100100 HDA:80862806,80860101,00100000'
Controls : 30
Simple ctrls : 12
Simple mixer control 'Master',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 87
Mono: Playback 87 [100%] [0.00dB] [on]
Simple mixer control 'Headphone',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 87
Mono:
Front Left: Playback 0 [0%] [-65.25dB] [off]
Front Right: Playback 0 [0%] [-65.25dB] [off]
Simple mixer control 'Speaker',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 87
Mono:
Front Left: Playback 87 [100%] [0.00dB] [on]
Front Right: Playback 87 [100%] [0.00dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 255 [100%] [0.00dB]
Front Right: Playback 255 [100%] [0.00dB]
Simple mixer control 'Mic',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 23 [74%] [0.00dB] [on]
Front Right: Playback 23 [74%] [0.00dB] [on]
Simple mixer control 'Mic Boost',0
Capabilities: volume
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: 0 - 3
Front Left: 0 [0%] [0.00dB]
Front Right: 0 [0%] [0.00dB]
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'Capture',0
Capabilities: cvolume cswitch
Capture channels: Front Left - Front Right
Limits: Capture 0 - 31
Front Left: Capture 8 [26%] [-4.50dB] [on]
Front Right: Capture 8 [26%] [-4.50dB] [on]
Simple mixer control 'Auto-Mute Mode',0
Capabilities: enum
Items: 'Disabled' 'Enabled'
Item0: 'Enabled'
Simple mixer control 'Digital',0
Capabilities: cvolume
Capture channels: Front Left - Front Right
Limits: Capture 0 - 120
Front Left: Capture 0 [0%] [-30.00dB]
Front Right: Capture 0 [0%] [-30.00dB]
Simple mixer control 'Internal Mic',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-34.50dB] [on]
Front Right: Playback 0 [0%] [-34.50dB] [on]
Simple mixer control 'Internal Mic Boost',0
Capabilities: volume
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: 0 - 3
Front Left: 0 [0%] [0.00dB]
Front Right: 0 [0%] [0.00dB]
!!Alsactl output
--startcollapse--
state.PCH {
control.1 {
iface MIXER
name 'Headphone Playback Volume'
value.0 0
value.1 0
comment {
access 'read write'
type INTEGER
count 2
range '0 - 87'
dbmin -6525
dbmax 0
dbvalue.0 -6525
dbvalue.1 -6525
control.2 {
iface MIXER
name 'Headphone Playback Switch'
value.0 false
value.1 false
comment {
access 'read write'
type BOOLEAN
count 2
control.3 {
iface MIXER
name 'Speaker Playback Volume'
value.0 87
value.1 87
comment {
access 'read write'
type INTEGER
count 2
range '0 - 87'
dbmin -6525
dbmax 0
dbvalue.0 0
dbvalue.1 0
control.4 {
iface MIXER
name 'Speaker Playback Switch'
value.0 true
value.1 true
comment {
access 'read write'
type BOOLEAN
count 2
control.5 {
iface MIXER
name 'Internal Mic Playback Volume'
value.0 0
value.1 0
comment {
access 'read write'
type INTEGER
count 2
range '0 - 31'
dbmin -3450
dbmax 1200
dbvalue.0 -3450
dbvalue.1 -3450
control.6 {
iface MIXER
name 'Internal Mic Playback Switch'
value.0 true
value.1 true
comment {
access 'read write'
type BOOLEAN
count 2
control.7 {
iface MIXER
name 'Mic Playback Volume'
value.0 23
value.1 23
comment {
access 'read write'
type INTEGER
count 2
range '0 - 31'
dbmin -3450
dbmax 1200
dbvalue.0 0
dbvalue.1 0
control.8 {
iface MIXER
name 'Mic Playback Switch'
value.0 true
value.1 true
comment {
access 'read write'
type BOOLEAN
count 2
control.9 {
iface MIXER
name 'Auto-Mute Mode'
value Enabled
comment {
access 'read write'
type ENUMERATED
count 1
item.0 Disabled
item.1 Enabled
control.10 {
iface MIXER
name 'Capture Volume'
value.0 8
value.1 8
comment {
access 'read write'
type INTEGER
count 2
range '0 - 31'
dbmin -1650
dbmax 3000
dbvalue.0 -450
dbvalue.1 -450
control.11 {
iface MIXER
name 'Capture Switch'
value.0 true
value.1 true
comment {
access 'read write'
type BOOLEAN
count 2
control.12 {
iface MIXER
name 'Internal Mic Boost Volume'
value.0 0
value.1 0
comment {
access 'read write'
type INTEGER
count 2
range '0 - 3'
dbmin 0
dbmax 3600
dbvalue.0 0
dbvalue.1 0
control.13 {
iface MIXER
name 'Mic Boost Volume'
value.0 0
value.1 0
comment {
access 'read write'
type INTEGER
count 2
range '0 - 3'
dbmin 0
dbmax 3600
dbvalue.0 0
dbvalue.1 0
control.14 {
iface MIXER
name 'Master Playback Volume'
value 87
comment {
access 'read write'
type INTEGER
count 1
range '0 - 87'
dbmin -6525
dbmax 0
dbvalue.0 0
control.15 {
iface MIXER
name 'Master Playback Switch'
value true
comment {
access 'read write'
type BOOLEAN
count 1
control.16 {
iface CARD
name 'Internal Mic Phantom Jack'
value true
comment {
access read
type BOOLEAN
count 1
control.17 {
iface CARD
name 'Mic Jack'
value false
comment {
access read
type BOOLEAN
count 1
control.18 {
iface CARD
name 'Headphone Jack'
value false
comment {
access read
type BOOLEAN
count 1
control.19 {
iface CARD
name 'Speaker Phantom Jack'
value true
comment {
access read
type BOOLEAN
count 1
control.20 {
iface PCM
name 'Playback Channel Map'
value.0 0
value.1 0
comment {
access read
type INTEGER
count 2
range '0 - 36'
control.21 {
iface PCM
name 'Capture Channel Map'
value.0 0
value.1 0
comment {
access read
type INTEGER
count 2
range '0 - 36'
control.22 {
iface CARD
name 'HDMI/DP,pcm=3 Jack'
value false
comment {
access read
type BOOLEAN
count 1
control.23 {
iface MIXER
name 'IEC958 Playback Con Mask'
value '0fff000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
comment {
access read
type IEC958
count 1
control.24 {
iface MIXER
name 'IEC958 Playback Pro Mask'
value '0f00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
comment {
access read
type IEC958
count 1
control.25 {
iface MIXER
name 'IEC958 Playback Default'
value '0400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
comment {
access 'read write'
type IEC958
count 1
control.26 {
iface MIXER
name 'IEC958 Playback Switch'
value false
comment {
access 'read write'
type BOOLEAN
count 1
control.27 {
iface PCM
device 3
name ELD
value ''
comment {
access 'read volatile'
type BYTES
count 0
control.28 {
iface PCM
device 3
name 'Playback Channel Map'
value.0 0
value.1 0
value.2 0
value.3 0
value.4 0
value.5 0
value.6 0
value.7 0
comment {
access 'read write'
type INTEGER
count 8
range '0 - 36'
control.29 {
iface MIXER
name 'PCM Playback Volume'
value.0 255
value.1 255
comment {
access 'read write user'
type INTEGER
count 2
range '0 - 255'
tlv '0000000100000008ffffec1400000014'
dbmin -5100
dbmax 0
dbvalue.0 0
dbvalue.1 0
control.30 {
iface MIXER
name 'Digital Capture Volume'
value.0 0
value.1 0
comment {
access 'read write user'
type INTEGER
count 2
range '0 - 120'
tlv '0000000100000008fffff44800000032'
dbmin -3000
dbmax 3000
dbvalue.0 -3000
dbvalue.1 -3000
--endcollapse--
!!All Loaded Modules
Module
fuse
ctr
ccm
bnep
bluetooth
nls_iso8859_1
nls_cp437
vfat
fat
arc4
brcmsmac
cordic
uvcvideo
brcmutil
videobuf2_vmalloc
coretemp
videobuf2_memops
videobuf2_core
snd_hda_codec_hdmi
v4l2_common
intel_rapl
videodev
iosf_mbi
media
b43
x86_pkg_temp_thermal
snd_hda_codec_realtek
snd_hda_codec_generic
intel_powerclamp
mac80211
kvm_intel
cfg80211
i915
snd_hda_intel
snd_hda_controller
ssb
rng_core
pcmcia
snd_hda_codec
pcmcia_core
snd_hwdep
kvm
r8169
snd_pcm
rtsx_pci_ms
drm_kms_helper
bcma
asus_nb_wmi
drm
asus_wmi
joydev
iTCO_wdt
crct10dif_pclmul
mii
memstick
mousedev
snd_timer
sparse_keymap
snd
crc32_pclmul
iTCO_vendor_support
intel_gtt
soundcore
crc32c_intel
led_class
rfkill
hwmon
shpchp
wmi
i2c_i801
i2c_algo_bit
i2c_core
ghash_clmulni_intel
cryptd
pcspkr
evdev
mac_hid
psmouse
serio_raw
mei_me
mei
lpc_ich
thermal
video
button
ac
processor
battery
sch_fq_codel
nfs
lockd
grace
sunrpc
fscache
ext4
crc16
mbcache
jbd2
sr_mod
cdrom
sd_mod
rtsx_pci_sdmmc
mmc_core
atkbd
libps2
ahci
xhci_pci
libahci
libata
scsi_mod
ehci_pci
rtsx_pci
ehci_hcd
xhci_hcd
usbcore
usb_common
i8042
serio
!!Sysfs Files
/sys/class/sound/hwC0D0/init_pin_configs:
0x12 0x411111f0
0x14 0x90170110
0x17 0x411111f0
0x18 0x04a11840
0x19 0x90a70930
0x1a 0x411111f0
0x1b 0x411111f0
0x1d 0x40089d2d
0x1e 0x411111f0
0x21 0x04211020
/sys/class/sound/hwC0D0/driver_pin_configs:
0x14 0x99130110
0x15 0x0121401f
0x18 0x01a19c20
0x19 0x99a3092f
/sys/class/sound/hwC0D0/user_pin_configs:
/sys/class/sound/hwC0D0/init_verbs:
/sys/class/sound/hwC0D0/hints:
/sys/class/sound/hwC0D3/init_pin_configs:
0x05 0x58560010
0x06 0x18560020
0x07 0x58560030
/sys/class/sound/hwC0D3/driver_pin_configs:
/sys/class/sound/hwC0D3/user_pin_configs:
/sys/class/sound/hwC0D3/init_verbs:
/sys/class/sound/hwC0D3/hints:
!!ALSA/HDA dmesg
[ 12.098095] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun
[ 12.151130] sound hdaudioC0D0: autoconfig: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker
[ 12.151132] sound hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[ 12.151134] sound hdaudioC0D0: hp_outs=1 (0x21/0x0/0x0/0x0/0x0)
[ 12.151135] sound hdaudioC0D0: mono: mono_out=0x0
[ 12.151137] sound hdaudioC0D0: inputs:
[ 12.151139] sound hdaudioC0D0: Internal Mic=0x19
[ 12.151141] sound hdaudioC0D0: Mic=0x18
[ 12.294566] Support for cores revisions 0x17 and 0x18 disabled by module param allhwsupport=0. Try b43.allhwsupport=1
[ 12.463347] i915 0000:00:02.0: registered panic notifier
[ 12.472923] input: HDA Intel PCH Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input15
[ 12.473056] input: HDA Intel PCH Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input16
[ 12.473157] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input17
[ 12.569375] uvcvideo: Found UVC 1.00 device USB2.0 HD UVC WebCam (04f2:b354)
Last edited by federico7979 (2015-04-18 23:04:59)

Webcam Video pauses when recording sound from microphone

I have a strange problem which i am encountering when recording and playing back webcam video.
I am developing a small application for recording webcam video and audio using FMS and playing it back later from FMS.
I am using AS 3.0, FMS 3.5 and flash CS 5.5
When i record only the video from webcam without sound from microphone the playback is fine. But when i record microphone sound also along with the video, and when i playback the video pauses right where the sound starts for 10 sec or more and then it starts playing. Towards the end the video pauses again and only the sound goes on till the end.
I tried setting the buffertime to 50 before ns.publish and ns.play but that didnt help either.
I tried using the flvplayback component and even their it pauses.
Any help is appreciated.

Haha, that is such a genius use of common sense! Thank you, I didn't think of that. I certainly will!
However, does anyone know if there is a way of adjusting the program of garageband to fix this issue? Using headphones certainly fixes the symptoms of my problem, but it doesn't actually address the root cause: garageband should only be recording the input through the microphone. I shouldn't need to wear headphones. (And doing so inhibits my ability to clearly hear myself play, and stay in tune.)

Optimizing microphone input level into GB with a mixer

I am trying to optimize the mixer settings for recording from a professional quality studio condenser microphone (requiring phantom power) in GB. I have the options of 1) changing the preamp gain on the microphone input, 20 changing the level of the microphone channel in the main mix, and 30 changing the main mix output level. These output from the mix goes through an iMic into a USB port on my mac.
Can someone describe how to set the mixer output to maximize the signal-to-noise ratio without causing distortion in GB? When I have followed the general recommendations for setting the gain, level, and main mix output for live performances, the output from the mixer causes GB to distort, even though there is no clipping occurring before it leaves the mixer. I can turn down any of these settings and get a decent recording in GB, but I'd like to know how to optimize the settings and not just settle for something that just works.

Consider an all-digital chain of signals (for sake of the argument, in analog terms it's similar), recording at 16 bit. If at the first stage of your recording you use only 12 of the 16 bits, you're giving up half of your resolution which is important for the dynamic range that your recording has. And this information is lost forever, even if you push the signal at the next stage - you lower the sound quality.
That's why I said that taking advantage of the full bit resolution at every step of your signal chain is crucial.

How can I set the microphone input level?

How can I set the microphone input level?

It would be best to use the standard windows mixer "sndvol32.exe" (in the windows directory) and control it with the System Exec.vi from the Communication palette.
You may want to look at the following discussion thread, too:
how to control the microphone volume input via LabView
How Can I Record Sound in LabVIEW from Sources other than the Microphone?
Zvezdana S.

Microphone Input Setti

I just installed Dragon Naturally Speaking (DNS) under Windows XP Pro (SP2+) and I have a SB Audigy sound card. I used to use the same sound card under Windows 98 SE with Dragon Naturally Speaking 6 Pro. The problem I'm having is that it appears that the default settings under the mixer are to disable the microphone input and to set the recording level to minimum. In order for me to use DNS I must first launch the Mixer, enable the microphone and then adjust the recording level to maximum. Since the reason I'm using DNS in the first place is because of physical problems with using my hands/arms and mousing these defaults are very troublesome to me. (My husband is typing this post). I have tried changing these settings and then closing the applications but they return to their default values.
) Does anybody know how to actually change these default settings (I'm willing to edit the registry if necessary)?
2) Is there any way to take control of these settings away from the creative applications? (Can I uninstall all of the Creative applications and still have the sound card work?
Help me save my arms!!!
TIA

This is the only thing I've found to fix the problem short of contacting the developers of every application that does this.
Dragon natrually speaking
BF2
Fraps
http://www.muvixer.com/

Microphone Input Detection

I would like to create a VI that actively detects if there is a signal present on the microphone input of my sound card. I don't care to extract any information from the signal other than if it is above a certain threshold I set. My vision is that I can see a virtual LED light up when I speak into the mic and it will turn off when I stop talking. I would also like to record the "mute" events (start and stop points) with a timestamp relative to start of the aquisition.
Any help would be greatly appreciated.
Thanks!

Hi Jennifer,
I've used similar VI's available in the examples (Sound2) of Lab view folder and developed few VI's.
Please see the attached below.
The problem i'm facing is I coudlnt initiate the record option automatically.(manually starting the VI and stopping the VI- need to be autoamted)
And even the recorded 1.wav is not similar to the library wave file available with me..
Play the library wave file attached here with...
Looks like some problem with the sound format..
Please give a proper suggestion as to how to make these two .wav formats equal...
if these two formats are equal, i already designed a comparison technique which will compare two .wav files and gives the result as pass/fail..
Thanks in Advance.
Cheers,
Suneel.V
Attachments:
My_proj.zip ‏185 KB

Constantly record and analyze microphone input

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