The dmesg results indicates which decimation values are used to downsample, yielding this table of twelve valid hardware rates:. In some cases cards have multiple signal sources a tuner and an external composite video and audio input pair, for example. For example, the box labeled model may contain one of these:. Never did get it to work in 10 so I put together a different PC with 7 and found some drivers, not from Leadtek, that work, but make the tuner appear to be for some other non-US region. My Computer Computer Type: The following cards are said not to work, but it’s not known if they are wired the wrong way, not properly initialized, or just mistakenly thought not to work:.

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Sometimes you can play around with sample frequencies and input gain settings and improve things.

Intel Core i7 2. My Computer Computer Type: In these designs there will be an analogue switching IC between the two input sources and the BT87x. You can download the Vista 64bit driver here: Since this driver is open source, it may be possible to use it to determine what needs to be done auxio the Linux driver.

This is useful if you would like to reserve your sound card for other functions, if you want to have multiple tuner cards in one computer, or if your sound card does not handle full-duplex.


In this case, and in this case only, you will not get the broadcast audio. Rather annoying when capture software falsely claims old home videos are “copy protected”.

I have seen at least one card where the switcher IC routes both audio and video, and with the audio output from the switch only going to the external audio out, so you can use btaudio for the TV tuner, but not for the external audio input. That’s no problem because being NTSC it’s useless. New 23 Dec 2. The time now is On the datasheet, the relevant pins are 94, 98, and This page auio been accessed 29, times.

The wiring varies; the sound can come through on different bt8778 cf.

Btaudio (bt) – LinuxTVWiki

The digital mode requires an additional digital audio source, such as the MSP34xx, which not all cards have. The ADC audio stage runs a 1.

Analogue mono audio comes via the tuner or an external input source onto one or both of the BT87x analogue audio input pins. He notes that by editing the btaudio driver, it’s possible to make the ADC accept a decimation value lower than 4 for even higher sampling rates.

While a digital signal processor such as the MSP34xx is required for btaudio’s digital mode, any bt87x card has the required hardware to work with btaudio’s analog mode. Retrieved from ” https: Hauppauge model labels are often uninformative. Although all cards with BT87x chips are capable of supporting btaudio, not all cards do. Petr Vandrovec describes a case where a bt card fails to work with the btaudio driver unless it is first initialized by a Win98 driver:.


Got a link to the actual driver download, instead of Driver Dr?

MEDIA – Conexant – Conexant BT878 Audio Capture Computer Driver Updates

You will get static or silence. See the captured graph after power-on and compare with the graph captured after booting Win I got an entry for Bt audjo video capture, and one for Bt based video capture unused audio.

DriverMax did find and download and install a driver. It only does a few things, roughly something like:. Windows 10 Pro CPU: Audioo is, in theory, fully replaced and conflicts with Snd-bt87x alsa bt driver.

About Us Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. What would be most wonderful is if someone could update this open source bt capture driver.