On 29/05/19 11:59, Kamil Adiloglu wrote:
Dear list,I am compiling a list of suitable sound cards for a mobile real-time experimental setup. There are some criteria that such sound card should fulfil: - External sound card: We have a mini PC with an on-board sound chip. We want to use an external sound card with a decent sound quality. Our mini PC has USB-2, USB-3, USB-C (Thunderbolt 3) connections.- Class compliance: We have a real-time signal processing platform, which runs on Linux (Actually it also supports Windows and Mac, but we prefer Linux). Therefore we need a sound card, which Linux can operate. Manufacturers usually do not officially support Linux, but there are some, which run under Linux, because they are class compliant and do not require a dedicated driver.- At least 4 (preferably 6) analog (identical) inputs and at least 2 analog (identical) outputs- Lower sampling rates: As we will do real-time signal processing, we prefer lower sampling rates for the sake of computational complexity. Therefore, ideally we would like to have a sound card, which supports even 16kHz, but 32kHz also OK.
If a low input to output latency is important in your use case then it might be beneficial to select the highest sampling rate and maximum number of channels (for instance 8ch @ 96kHz or even 192kHz) on both sides and down/upsample on the fly (assuming your mini PC can keep up with of course).
I know that these criteria are now easy to fulfil. So far, I couldn't find any sound card, which fulfils all the requirements. In the worst case, we can sacrifice the last requirement and downsample our sound input before processing, but it is a good-to-have one.We would appreciate any suggestion. Thank you in advance. Best Regards, Kamil Adiloglu -- Dr. Kamil Adiloğlu Forschung und Entwicklung HörTech gGmbH Marie-Curie-Str. 2 D-26129 Oldenburg Germany Phone: +49 441 2172-215 Fax: +49 441 2172-250 Email:k.adiloglu@xxxxxxxxxxx <mailto:k.adiloglu@xxxxxxxxxxx> www.hoertech.de <http://www.hoertech.de> HRB 5035, AG Oldenburg, Geschäftsführer: Sebastian Quirandt -------------------------------------------------------------------------------- HörTech gGmbH ist zertifiziert nach DIN EN ISO 13485 -------------------------------------------------------------------------------- HörTech gGmbH ist Partner im Exzellenzcluster Hearing4all www.hearing4all.eu <http://www.hearing4all.eu> -------------------------------------------------------------------------------- Der Inhalt dieser E-Mail ist ausschließlich für den/die bezeichneten Adressaten bestimmt. Wenn Sie nicht der vorgesehene Adressat dieser E-Mail oder dessen Vertreter sein sollten, beachten Sie bitte, dass jede Form der Kenntnisnahme, Veröffentlichung, Vervielfältigung oder Weitergabe des Inhalts dieser E-Mail unzulässig ist. Bitte setzen Sie sich in diesem Fall mit dem Absender der E-Mail in Verbindung.
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