That's interesting, I hadn't realised that other players on the same local network would receive a recompressed signal. I may check this on the logitech forum. But no, both server and the player for my main stereo are on the same Pi and the sound will go direct to the card, not the network.Is there no advantage in using the card that handles 192kHz, even though it's connect to unbalanced inputs?IainEnviado do meu Galaxy
-------- Mensagem original --------De : jr52884 <jr52884 at aim.com> Data: 16/01/2024 17:16 (GMT-03:00) Para: mott <mott at escuta.org>, people at lists.audioinjector.net Assunto: Re: [AudioI] FW: Re: Audio Pro Soundcard for Tidal streaming
Hi Iain,I thought you wanted differential audio output from the Pro. Do you just want single-ended (unbalanced) then? If so, you would buy the RCA preamp board for the Pro instead. You mentioned you are using a high fidelity streaming service. Will you be running it on the Pi itself or streaming the audio output of what you are running it on over the network to the Pi? If the latter is the case, you’ll be recompressing the streaming service’s audio to deliver it to the Pi over the network and losing quality. I don’t know if it will resample it, but if it does, you would be defeating your initial goal.Jonathan Sent from the all new AOL app for iOSOn Tuesday, January 16, 2024, 1:27 PM, mott <mott at escuta.org> wrote:That's great Jonathan. The preamp is a Quad 34 with unbalanced inputs (rca). I'm guessing the output of XLR board will be better than the earlier Audio Injector Stereo (at least when playing 192kHz 24bit audio), but in any case, I need an additional quality output board for the Pi, and it'll be handy have a balanced interface for other things. I'll wire up or purchase a short XLR to RCA lead to connect to the Quad.Logitech Media Server is an excellent streaming audio server for Spotify, Tidal, web radio, etc. It can stream to any number of players (including squeezelite) on a network and these players can be controlled from mobile phone apps or a browser interface. All the best,IainEnviado do meu Galaxy-------- Mensagem original --------De : jr52884 <jr52884 at aim.com> Data: 16/01/2024 13:58 (GMT-03:00) Para: mott at escuta.org, people at lists.audioinjector.net Assunto: Re: [AudioI] FW: Re: Audio Pro Soundcard for Tidal streaming
Hi Iain,I don’t know what sort of input connections your preamp has (I don’t believe you mentioned it) and I’m not familiar with any of that software. The Pro simply presents itself as an ALSA device, like any other ALSA soundcard. If you require differential audio output for your preamp, you’ll get it with the XLR preamp board via the XLR connectors.JonathanSent from the all new AOL app for iOSOn Tuesday, January 16, 2024, 5:25 AM, Iain Mott <mott at escuta.org> wrote:
Thanks Jonathan,
I think the description "Audio Injector XLR Preamp -
Professional-Grade Audio Interface for Microphones and XLR-Based
Audio Sources", confused me a little. I didn't initially assume
that it had outputs.
My Pi with have the Logitech Media Server running and
additionally, squeezelite, to play from the server and send audio
to the outputs of the "Audio Injector XLR Preamp".
If that sounds correct I'll place my order for the Pre-amp.
All the best,
Iain
Em 15/01/2024 17:13, jr52884 at aim.com
escreveu:
Iain,
The XLR preamp board provides both stereo
input and output and is how you interface the Pro with
whatever you connect it to. If you want differential audio
output, that's the preamp board you buy. If you want
single-ended audio like the Stereo provides, you buy the
RCA preamp board.
The XLR/RCA preamp board provides the analog
preamp stage that interfaces with the CODEC's
inputs/outputs used on the Pro.
Jonathan
On Monday, January 15, 2024, 11:45:29 AM EST, mott via
People <people at lists.audioinjector.net> wrote:
Enviado do
meu Galaxy
-------- Mensagem original --------
De : mott <mott at escuta.org>
Data: 15/01/2024 12:25 (GMT-03:00)
Para: jr52884 <jr52884 at aim.com>
Assunto: Re: [AudioI] Audio Pro Soundcard for
Tidal streaming
Hi Jonathan,
So the XLR preamp acts as a complete stereo
interface, with stereo output independent of any
input?
Iain
Enviado do
meu Galaxy
-------- Mensagem original --------
De : jr52884 <jr52884 at aim.com>
Data: 15/01/2024 11:47 (GMT-03:00)
Para: mott <mott at escuta.org>,
people at lists.audioinjector.net
Assunto: Re: [AudioI] Audio Pro Soundcard for
Tidal streaming
Hi Iain,
You simply buy the Audio Injector Pro and the XLR
preamp board and use XLR to connect unbalanced
audio to your preamp like you would anything else.
The preamp board is needed unless you want to roll
your own high quality op amp line drivers. The CODEC
requires them.
Jonathan
Sent from the all new AOL app
for iOS
On
Sunday, January 14, 2024, 12:20 PM, mott via People
<people at lists.audioinjector.net> wrote:
Thanks Jonathan. No, sorry, I should have
explained better. I currently have a raspberry
pi with a stereo audio injector card. It's
connected to a Quad 43 preamplifier and I use
it for streaming Tidal. My turntable is also
connected to the Quad and I want keep using
the preamp. I'm interested in using the Pro
audioinjector to make use of its processing of
higher sampling rates, specifically, for
Tidal's high resolution content, some of which
streams at 192kHz. So I need to know how to
wire its output to connect with the unbalanced
inputs of the Quad 43.
Iain
Enviado
do meu Galaxy
-------- Mensagem original --------
De : jr52884 at aim.com
Data: 14/01/2024 13:27 (GMT-03:00)
Para: mott <mott at escuta.org>
Assunto: Re: [AudioI] Audio Pro
Soundcard for Tidal streaming
Ian,
There are output boards
available, both single-ended (rca preamp)
and differential (XLR preamp) boards. It
sounds like you have the RCA preamp board.
You would simply buy the differential
preamp board. Here
is the product page and it looks like you
can purchase it here.
Jonathan
On Saturday, January 13, 2024,
11:24:28 AM EST, mott via People
<people at lists.audioinjector.net>
wrote:
Actually, what I wrote is
probably wrong, at least, if the
diagram really does apply to the
Pro.
Output 4 is Left out +ve and
Output 3 is Right +ve, for
balanced, I assume.
Enviado do meu Galaxy
-------- Mensagem original
--------
De : Iain Mott via People
<people at lists.audioinjector.net>
Data: 13/01/2024 11:38
(GMT-03:00)
Para: Holguin Daniel
<cicloide at yahoo.com>,
people at lists.audioinjector.net
Assunto: Re: [AudioI] Audio
Pro Soundcard for Tidal
streaming
Thanks Fausto!
I saw this diagram on github:
So I'd wire the left channel
RCA "tip" to Output 1 and the
right channel tip to Output 2.
Correct? Do the Output pins have
a ground or should I wire the
RCA sleeves to the GND on the
Power pins?
Iain
Em
13/01/2024 09:21, Holguin Daniel
escreveu:
Hi Iain.
Yes. The first two channels
are at the left. The left
channel on top. Usually.
The card can output stereo.
Fausto
sent
from a📱
On Sat, Jan 13, 2024
at 5:01, Iain Mott via
People
<people at lists.audioinjector.net>
wrote:
Hi,
I'm
interested in using the
new Audio Pro Soundcard
for streaming Tidal
with a high
resolution account
(audio of up to 192kHz,
24bit). For this
I'll be
needing only unbalanced
audio output from the
card to connect to
a stereo
pre-amp and power amp.
How should
I go about making the
audio connections for
this, please? Is
it just a
matter of connecting a
pair of RCA sockets to
certain pins on
the "OUT"
section of the board?
For my
system, the Raspberry
with the Pro Soundcard
will be running a
Logitech
Media Server with a
Squeezelite audio
player.
Thanks a
lot,
Iain
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--
_______
Iain Mott
https://escuta.org
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