MAX with sound input

How can I use MAX (the Measurement and Automation program) to test if the computer is able to read voltage changes via the sound card (fed into the computer via the microphone jack). Please walk me through the process...
Thank you!

MAX is for NI cards only. Is your sound card an NI card; I don't think they make one?
Message Edited by nyc on 07-13-2006 10:19 AM

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Time mismatch with Sound Input Read VI

Hi Folk,
I am acquiring the signal of the PC
sound card with the "Sound Input Read VI" and I have
noticed that between subsequent waveform data packets there are time
mismatch, both overlap and gap.
To point out the observed behavior, I
have posted a modified example, the "Continuous Sound Input.vi". In the example, I have computed the
time difference between the t0 of the actual waveform packet and t0
expected on the basis of the previous waveform packet.
Consistently, in the indicator "Time
series" (Waveform Charts), each time there is a time overlap or
gap the Charts resets it self or presents a gap.
By reading 1 second of data the time
mismatch is about 0.015625 or 0.03125 sec. (both positive and
negative).
The repetition frequency of the time
mismatch decreases as the acquisition sample rate increases.
The amount of the time mismatch seems
to be sample rate invariant.
Do you have any idea from where this
problem is coming out and how to solve it?
Thanks for your help,
Asper
Attachments:
Time mismatch with Sound Input Read VI.png ‏51 KB

Pre made Labview functions are not some holly grails that is newer to be touched and modified. In fact many included functions in Labview has what I will name as "high flimflam factor" That will say a lot of functions you do not really need. Express VIs are grim examples of this.
Anyway I have made some modifications and removed some babyfat in the sound input VI. Take a look at it. The top level VI is the "time fixed sound.vi" It could be that you will get an error because Labview will not find a DLL. If a DLL is reported missing you will find it in C:\Program files\National Instruments\LabVIEW 2010\resource\lvsound2.dll
Remember to save the modified VIs in a separate folder, and not in the vi.lib folder at all. Be careful so you do not overwrite any Labview function
Besides which, my opinion is that Express VIs Carthage must be destroyed deleted
(Sorry no Labview "brag list" so far)
Attachments:
Sound Input Read (DBL)_time_fixed.vi ‏30 KB
time fixed sound.vi ‏19 KB

Problem with sound input/output settings

Hello--
Last night, my iBook suddenly stopped playing any sounds at all: itunes, CDs, etc, won't play at all. I looked in system preferences/sound, and the computer told me that there are no input or output devices at all. What's more, the sound seems to me on permanent mute, and it won't allow me to change it at all (F4 and F5 functions just show a "mute" sign under the volume bar). Is this a problem with the software, hardware, or what? Thanks in advance for any advice,
JB Coleman

here is a set of weird but probable solutions. Good luck
Solutions

Can't aquire Sound input. Locks up instantly Dell optiplex 760

With labview 8.6 and All previous versions of labview I have the same issue with this new computer. Using supplied example aquire sound input or my own app as soon your press run the VI hangs untill I use end task. It will play sound however. Issue is with sound input only. The new pc has integrated soundmax HD sound ans windows xp operating system. I have never had a problem aquiring sound input untill this recent pc change.
I did take notice that the cpu is not being used when it hangs up. Very odd problem. If I change the device from 0 to 1 it will run but with no sound of course.

Had the same issue (sound stutter / garble) after upgrade to 3.0.6.
Fixed it by downgrading back to 3.0.4.
In case it helps identify the issue, these are the sound modules I am using (they work fine under 3.0.4, but produce stuttering audio under 3.0.6, under ALL apps I use - firefox/flash videos, mplayer, ffplay, etc):
$ lsmod | grep snd
snd_hda_codec_realtek 222124 1
snd_hda_intel 19101 3
snd_hda_codec 66954 2 snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 4942 1 snd_hda_codec
snd_pcm_oss 33792 0
snd_pcm 60015 4 snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_timer 15374 2 snd_pcm
snd_page_alloc 5837 2 snd_hda_intel,snd_pcm
snd_mixer_oss 12807 1 snd_pcm_oss
snd 43561 12 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_pcm,snd_timer,snd_mixer_oss
soundcore 4986 1 snd

I am not getting any sound input on my microphone. There is no microphone input on my new macbook pro, so I am using my old one. Is this a problem with the new operating system? Did they simply remove any microphone software?

I am not getting any sound input on my microphone. There is no microphone input on my new macbook pro, so I am using my old one. Is this a problem with the new operating system? Did they simply remove any microphone software?

Check System Preferences > Sound > Output
Make sure the correct device is selected.

I'm trying Facetime with my Mac Mini with OS 10.7.5 and an Acer H243HX monitor (w/ HDMI, USB). I can get the webcam-in , but even with settings in Sounds set to have the input come through the Acer monitor, I still cannot get any sound input into the Mac.

I'm trying Facetime with my Mac Mini with OS 10.7.5 and an Acer H243HX monitor (w/ HDMI, USB). I can get the webcam-in , but even with settings in Sounds set to have the input come through the Acer monitor, I still cannot get any sound input into the Mac. Any suggestions or ideas? Thanks!

I'm trying Facetime with my Mac Mini with OS 10.7.5 and an Acer H243HX monitor (w/ HDMI, USB). I can get the webcam-in , but even with settings in Sounds set to have the input come through the Acer monitor, I still cannot get any sound input into the Mac. Any suggestions or ideas? Thanks!

Im using an iMic to record but now it all of a sudden won't pick up anything played through it, yet if i turn on garageband it works. logic pro does acknowledge that the imic is plugged in but still won't pick up any sound, even with audio input : imic

Im using an iMic to record but now it all of a sudden won't pick up anything played through it, yet if i turn on garageband it works. logic pro does acknowledge that the imic is plugged in but still won't pick up any sound, even with audio input : imic and audio output : external speakers. is this just logic pro not working properly?

Same problem - happened after recent logic update.

How to compare input sound (from mic.) with sound on my database

i want to campare sound (from mic.) with sound on my database
ex:
if i say "hello" it show message "hello"
but if i say other word it will show message "try again"
forgive for my english
eak_

Speech recognition is a whole area in its own right
Lots of info and other references and the Java Speech APIs can be found here
http://java.sun.com/products/java-media/speech/index.jsp

Bluetooth adapter with digital input

I'm interested to purchase a bose solo tv speaker together with a bluetooth adapter so that i can play music from my laptop using the bose speakers. Do you have any bluetooth adapters that I can plug into the digital input of the bose speakers instead of the RCA input so that I can enjoy better sound quality?

kelvinlim82 wrote:
If i were still like to look for a blue tooth adapter with digital input, are there any out there?
Rocketfish makes one with digital but there are issues with it's range, Belkin and Harmon Kardon make them, but they're analog only.All of them are in the same $50.00 price range.
But the connectivity doesn't matter, you will not be able to tell the difference in audio fidelity between analog or digital using bluetooth.
Bluetooth simply doesn't have the bandwidth to carry any type of audio that needs a higher bandwidth digital connection. Digital Stereo maxes out at 1.41 Mbps, Bluetooth A2DP which is the best option for audio right now, maxes out at 768kbps.
There's a nice and consice article here that briefly goes over the technical details:
http://soundexpert.org/news/-/blogs/bluetooth-audio-quality-a2dp

System Preferences Sound Input is stuck at Soundflower (64ch). I can't change it!

So, I have a mid-2010 MacBook Pro running OS X Yosemite (latest version). (250GB HDD, 4GB RAM, 2.4 GHz)
I wanted to record some commentary for my video and to use the mic I went into System Preferences > Sound > Sound Input.
With my mic connected, I tried all of the 4 options (picture below), but then after closing and opening System Preferences again, the sound input is stuck on "Soundflower 64ch).
When I try to change it (e.g. Built-In), it "crashes", but not really: It selects the option I clicked for a second or two, then the list disappears and says "No Input Devices" briefly, then the list reappears with "Soundflower 64ch" selected.
Please help, I've tried some solutions I found online, like restarting the laptop, repairing disk permissions, even a code for Terminal.
Thanks to anybody in advance.
UPDATE: ****, I think my Mac is possessed or something. It shows the ring of death when my mouse is on the System Preferences window, and when I try to take a screenshot of the list itself, it lags and doesn't let me take it until "No input devices found" appears.

Either remove "Soundflower" or refer to its developer for support.
Any third-party software that doesn't install by drag-and-drop into the Applications folder, and uninstall by drag-and-drop to the Trash, is a system modification.
Whenever you remove system modifications, they must be removed completely, and the only way to do that is to use the uninstallation tool, if any, provided by the developers, or to follow their instructions. If the software has been incompletely removed, you may have to re-download or even reinstall it in order to finish the job.
I never install system modifications myself, and except as stated in this comment, I don't know how to uninstall them. You'll have to do your own research to find that information.
Here are some general guidelines to get you started. Suppose you want to remove something called “BrickMyMac” (a hypothetical example.) First, consult the product's Help menu, if there is one, for instructions. Finding none there, look on the developer's website, say www.brickmymac.com. (That may not be the actual name of the site; if necessary, search the Web for the product name.) If you don’t find anything on the website or in your search, contact the developer. While you're waiting for a response, download BrickMyMac.dmg and open it. There may be an application in there such as “Uninstall BrickMyMac.” If not, open “BrickMyMac.pkg” and look for an Uninstall button. The uninstaller might also be accessed by clicking the Customize button, if there is one.
Back up all data before making any changes.
You will generally have to restart the computer in order to complete an uninstallation. Until you do that, there may be no effect, or unpredictable effects.
If you can’t remove software in any other way, you’ll have to erase and install OS X. Never install any third-party software unless you're sure you know how to uninstall it; otherwise you may create problems that are very hard to solve.
Trying to remove complex system modifications by hunting for files by name often will not work and may make the problem worse. The same goes for "utilities" such as "AppCleaner" and the like that purport to remove software.

Bootcamp 3.1 & Windows 7 x64 - no external sound input, low speakers level

Hi all,
I just installed long awaited Bootcamp 3.1 update. I am rather disappointed.
The only thing that has changed is that the red light on the audio output is off. This thing actually bothered me the least.
External sound input line does not seem to work at all. No matter if mike or standard line device is connected. System recognizes that something is connected but there is no sound coming, level indicator does not rise.
Speakers level is still low. As far as I know all it takes to fix it is to alter some settings in the *.ini file. Someone did it and posted for other to download but why it is sho hard for Cirrus and Apple? What is the matter?
Is there any way to get sound output via Mini Port under Windows 7?
System does not even see such device.
Thanks,
Thomas

What about the iMac though? 2008 Model w/ Realtek to be specific. The audio is low and poor and I haven't even tried the audio out. I'm running Win7 x64 and everything works well aside from my audio and my external WD Studio FW800 drive disconnecting randomly with repeated directory changes. I can avoid that on my system... but the audio is a real disappointment. Makes me feel like I need an external FW sound card.

Premiere Pro 2.0 and Windows 7 - Direct Sound Input soundcard driver problem

My XP machine crashed, I reinstalled Premiere Pro 2.0 with Windows 7, and I got the following error: 'The Currently installed soundcard driver does not support Direct Sound Input. Recording audio is not possible.' The soundcard drivers are updated. Any ideas? Here's what I have: AMD Phenom II X4 965 Processor 3.40 GHz 8 GB, 64 bit. Thank you for looking.

Thanks! Though I upgraded to solve the problem, this is good to know.
Bob
Date: Wed, 9 Nov 2011 04:45:42 -0700
From: [email protected]
To: [email protected]
Subject: Premiere Pro 2.0 and Windows 7 - Direct Sound Input soundcard driver problem
Re: Premiere Pro 2.0 and Windows 7 - Direct Sound Input soundcard driver problem created by Steve-Italy in Premiere Pro CS4 & Earlier - View the full discussion
VERY VERY VERY EASY (now, when I solved the problem, not before...!!!)
Insert Micropone or any jack in Micropone Input or Aux Input, on your sound card or motherboard !
AND NOW YOU CAN USE PREMIERE PRO 2.0
Enjoy
Steve - Italy
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50L7300UC - sound input from Mac not outputting to ARC

I'm having an odd problem with audio on my 50L7300UC (Canadian model of the 50L7300U). I have a soundbar hooked up via HDMI ARC, and it works fine for audio from my cable PVR, from online sevices such as Netflix accessed through the TV itself, and from my PC (a Windows 8 tablet connected via a mini-Displayport to HDMI cable, which provides both audio and video). But with my wife's Macbook Air, using the same mini-Displayport to HDMI cable, video is fine but the sound won't output to the soundbar. Oddly, the sound does work if played through the TV speakers, but if I switch sound output to the soundbar (which the TV sees as "Amplifier"), nothing comes out. I've tried different settings on the Macbook's audio output (using the Midi Audio utility), but that doesn't seem to matter. Any ideas?

Hmm, if it doesn't see the internal microphone when connected via the FW cable, maybe you might have to run audio cables from the camcorder line output to the sound input on the Mac.

Monitors with Digital Inputs

What monitors are available that accept the Toslink input directly? Do the keyboard and on-screen volume controls still work with this arrangement?

I believe Tannoy make a set of the Elipse range of speaker with digital inputs as well. I have no idea why you would want to do this though. I suspect the gains in quality would be tiny if anything at all. You'd be better to spend more money on something less techy and get something that really sounds great!

G4 and microphone suitable for sound input port

I'm looking into getting started with podcasting and I need help with selecting a microphone. I'm on a G4 desktop machine with a sound input port, any suggestions as to the tech spec or manufacturer of a suitable microphone would be most appreciated.
Thanks.
G4 desktop Mac OS X (10.4.6)

Hi, Neil -
This Apple KBase article provides some info with regard to microphone selection -
http://docs.info.apple.com/article.html?artnum=18275
Scroll down the article to the G4 section that matches your G4 model.
Many users have gone to using the Griffin iMaic adapter, since it permits a wide variety of micophones to be used. There's a link near the bottom of the above article to Griffin's iMic page.

MAX with sound input

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