2 track digital input on Yamaha LS / M7 series consoles

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Kip Conner

Junior
Mar 13, 2011
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Athens, GA
I have an LS9-16 and have never used the 2 track digital connections, it doesn't make a lot of sense to carry around a cd player/burner when iPods are so handy these days.

What I'm wondering is if anyone makes some sort of compact A/D to convert an analog signal to the RCA style digital connection? Or better USB to RCA to hook laptops right up to the port for playback?

I suppose the one thing that would come into play is that I clock my console externally and I'm not sure if the console is going to have issues seeing a digital input since I don't clock internally.

However, the real point of using that port is for shows that run on 16 channels or less so I wouldn't need the rack which has the clock and the external mic pre's in it. Therefore it would be clocking internally at that point.

The card slot has an MY16 card in it so that would be another way of getting a couple of channels of program music in but would still require some sort of small A/D conversion kit.
 
I don't have a specific (currently available) suggestion but one thing to be aware of is the LS9 (don't know about M7s) does not do rate conversions on the digital inputs. So, if the desk is clocked at 48k, the input must be at 48k too. That has messed me up in the past where, for instance, my Dante connection has to be at 48k but my CD player only runs at 44.1k.
I have a box which seems to be hard to find sometimes called a "Flying Cow" that converts analog back and forth to SPID/F and AES.


Sent from my iPad HD
 
Re: 2 track digital input on Yamaha LS / M7 series consoles

Kip Conner said:
I have an LS9-16 and have never used the 2 track digital connections, it doesn't make a lot of sense to carry around a cd player/burner when iPods are so handy these days.

What I'm wondering is if anyone makes some sort of compact A/D to convert an analog signal to the RCA style digital connection? Or better USB to RCA to hook laptops right up to the port for playback?
Click to expand...

Using the digital in will mean either the playback device must be clocked to the console, or the console needs to be clocked to the playback device. Not many budget sources will take a WC input. Some CD players do not put out any clock when they stop, so the system will be changing clocks, and probably muting while it does.

Mac
 
Re: 2 track digital input on Yamaha LS / M7 series consoles

Kip Conner said:
What I'm wondering is if anyone makes some sort of compact A/D to convert an analog signal to the RCA style digital connection?
Click to expand...
There's quite a few inexpensive devices. The inexpensive ones will all be locked to 48khz, though.

Amazon.com: Analog to Digital Audio Converter Adapter: Electronics
Amazon.com: Menotek Analog Audio to Digital Audio Converter: Electronics
Amazon.com: Gefen Analog-to-digial Audio Adapter: Electronics
Stereo RCA to SPDIF Digital Coaxial and Toslink Audio Converter | StarTech.com
 
Re: 2 track digital input on Yamaha LS / M7 series consoles

Kip Conner said:
I have an LS9-16 and have never used the 2 track digital connections, it doesn't make a lot of sense to carry around a cd player/burner when iPods are so handy these days.

What I'm wondering is if anyone makes some sort of compact A/D to convert an analog signal to the RCA style digital connection? Or better USB to RCA to hook laptops right up to the port for playback?

I suppose the one thing that would come into play is that I clock my console externally and I'm not sure if the console is going to have issues seeing a digital input since I don't clock internally.

However, the real point of using that port is for shows that run on 16 channels or less so I wouldn't need the rack which has the clock and the external mic pre's in it. Therefore it would be clocking internally at that point.

The card slot has an MY16 card in it so that would be another way of getting a couple of channels of program music in but would still require some sort of small A/D conversion kit.
Click to expand...

Behringer: ULTRAMATCH PRO SRC2496
 
Re: 2 track digital input on Yamaha LS / M7 series consoles

Kip Conner said:
I have an LS9-16 and have never used the 2 track digital connections, it doesn't make a lot of sense to carry around a cd player/burner when iPods are so handy these days.

What I'm wondering is if anyone makes some sort of compact A/D to convert an analog signal to the RCA style digital connection? Or better USB to RCA to hook laptops right up to the port for playback?

I suppose the one thing that would come into play is that I clock my console externally and I'm not sure if the console is going to have issues seeing a digital input since I don't clock internally.
Click to expand...

I have long suspected that the LS9 actually does do sample rate conversion. I've hooked various unclocked sources up to the 2 track in. They immediately trigger the sync error message on the LS9, but I don't hear any of the clicks or dropouts that accompany clock errors. If I'm running an unsynced 44k source into a 44k clicked LS9, it just seems to work. If it's a 48k source, it sounds noticeably bad.

I've also used a Midiman CO2 optical/coax S/PDIF converter to take the optical out of a Macbook or an Airport Express into an LS9.
 
Dan Richardson said:
I have long suspected that the LS9 actually does do sample rate conversion. I've hooked various unclocked sources up to the 2 track in. They immediately trigger the sync error message on the LS9, but I don't hear any of the clicks or dropouts that accompany clock errors. If I'm running an unsynced 44k source into a 44k clicked LS9, it just seems to work. If it's a 48k source, it sounds noticeably bad.

I've also used a Midiman CO2 optical/coax S/PDIF converter to take the optical out of a Macbook or an Airport Express into an LS9.
Click to expand...

If it were running src it would not sound bad with mismatched sample rates.

Sent from my DROID RAZR
 
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